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QT-CD111/111C
SERVICE MANUAL
No. S3819QTCD111/
QT-CD111
QT-CD111C
Illustration: QT-CD111
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified should
be used.
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR QT-CD111 ONLY) ................................................................................................ 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
DISASSEMBLY .................................................................................................................................................................. 4
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 5
ADJUSTMENT ................................................................................................................................................................... 6
BLOCK DIAGRAM ............................................................................................................................................................. 8
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
TYPES OF TRANSISTOR ............................................................................................................................................... 16
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 17
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 18
FUNCTION TABLE OF IC ................................................................................................................................................ 21
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR QT-CD111 ONLY)
SHARP CORPORATION
–1–
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
QT-CD111/111C
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
IMPORTANT SERVICE NOTES (FOR QT-CD111 ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment
covers or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
VTVM
AC SCALE
1.5k ohms
10W
0.15 µ F
TO EXPOSED
METAL PARTS
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
SPECIFICATIONS
General
Power source:
Power consumption:
Output power:
(111)
Output power:
(111C)
Speakers:
Dimensions:
Weight:
Tape recorder
AC 120V, 60 Hz
DC 12 V [ "D" size (UM/SUM-1,
R20 or HP-2) battery x 8]
20 W
FTC; 2.0 W min. RMS per channel
into 8 ohms from 150 Hz to 20 kHz,
with no more than 10 % total harmonic distortion.
RMS; 2.3 W (1.65 W + 1.65 W)
(DC operation, 10 % T.H.D.)
RMS; 2.3 W/CH
(DC operation, 10 % T.H.D.)
4" (10 cm) full-range speaker x 2
Width; 18-15/16" (480 mm)
Height; 6-1/16" (153 mm)
Depth; 10" (254 mm)
7.1 Ibs. (3.2 kg) without batteries
Frequency response:
Signal/noise ratio:
Wow and flitter:
Motor:
Bias system:
Erase system:
50 - 14,000 Hz (Normal tape)
50 dB
0.25 % (WRMS)
DC 12 V electric governor
AC bias
Magnet erase
Compact disc player
Disc:
Signal readout:
Audio channels:
Quantization:
Filter:
D/A converter:
Wow and flutter:
Compact disc
Non-contact, 3-beam semiconductor laser pickup
2
16-bit linear quantization
4-tims oversampling digital filter
1-bit D/A converter
Unmeasurable
(less than 0.001% W. peak)
Radio
Frequency range:
Specifications for this model are subject to change without
prior notice.
FM; 87.6 - 108 MHz
AM; 530 - 1,702 kHz
–2–
QT-CD111/111C
NAMES OF PARTS
1
1. Cassette Compartment
2. CD Compartment
3. Tuning Control
4. (TAPE) Record Button:
5. (TAPE) Play Button:
6. (TAPE) Rewind Button:
7. (TAPE) Fast Forward Button:
8. (TAPE) Stop/Eject Button: /
9. (TAPE) Pause Button:
2
3
4 5 6 7 8 9
10 11
10. (CD) Play Indicator:
11. (CD) Track Number Indicator
12. (CD) Repeat Indicator:
13. Volume Control
14. Function Selector/Power Switch
15. Extra Bass Button: X-BASS
16. (CD) Track Down/Review Button:
17. (CD) Track Up/Cue Button:
18. (CD) Stop Button:
19. (CD) Play/Repeat Button:
12
13 14 15 16 17 18 19
20
20. FM Telescopic Rod Aerial
21. Battery Compartment
22. AC Power Input Socket
21
–3–
22
QT-CD111/111C
DISASSEMBLY
(C2)x1
Caution on Disassembly
Follow the below-mentioned notes when disassembling the
unit and reassembling it, to keep it safe and ensure excellent
performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need be
removed when disassembling the unit. After servicing the
unit, be sure to rearrange the leads where they were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
(C1)x5
ø3x10mm
Switch PWB
Main PWB
Top Cabinet
STEP
REMOVAL
PROCEDURE
FIGURE
1
Rear Cabinet
1. Screw ................. (A1) x10
2. Socket .................. (A2) x1
4-1
4-2
2
Top Cabinet
1. Knob ..................... (B1) x1
(with CD Mechanism/ 2. Screw ................... (B2) x3
Tape Mechanism/ 3. Socket .................. (B3) x1
Main PWB)
4-2
(C1)x1
ø3x10mm
Figure 4-3
(D1)x4
ø3x10mm
3
Main PWB/
Switch PWB
1. Screw ................... (C1) x6
2. Socket .................. (C2) x4
4-3
4-3,4-4
4
Tape Mechanism
1. Screw ................... (D1) x4
4-4
5
CD Mechanism
1. Screw ................... (E1) x3
4-4
6
Terminal PWB
1. Screw ................... (F1) x4
2. Hook ..................... (F2) x1
4-5
(E1)x3
ø2.5x10mm
Tape
Mechanism
Front Cabinet
(C2)x2
Top Cabinet
CD Mechanism
(C2)x1
Figure 4-4
(A1)x6
ø3x20mm
(F2)x1
(A1)x3
ø3x12mm
Rear Cabinet
(A1)x1
ø3x12mm
Push
Figure 4-1
Driver
Top Cabinet
(B1)x1
(F1)x2
ø3x10mm
Terminal PWB
(B2)x3
ø3x10mm
Main PWB
(A2)x1
(B3)x1
(F1)x2
ø3x10mm
Front Cabinet
Figure 4-2
Figure 4-5
–4–
QT-CD111/111C
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3 and 5 of the disassembly method to
remove the CD mechanism.
(A1) x2
2.6 x6mm
How to remove the pickup (See Fig. 5.)
1. Remove the screws (A1) x 2 pcs., to remove the shaft (A2)
x1 pc.
2. Remove the stop washer (A3) x1 pc., to remove the gear
(A4) x 1 pc.
3. Remove the pickup.
CD
Mechanism
Pickup
Shaft
(A2) x1
Gear
(A4) x1
Figure 5
–5–
Stop
Washer
(A3) x1
QT-CD111/111C
ADJUSTMENT
MECHANISM SECTION
TUNER SECTION
• Driving Force Check
Torque Meter
fL: Low-range frequency
fH: High-range frequency
Specified Value
PLAY: TW-2412
• FM IF/RF
Over 120 g
Specified
Value/Adjusting
Point
Test Stage
• Torque Check
Torque Meter
Specified Value
Play: TW-2111
25 to 65 g.cm
Fast Forward: TW-2231
60 to 130 g.cm
Rewind: TW-2231
60 to 130 g.cm
• Head Azimuth
Torque Meter
IF
T1
Detection
T2
Band Coverage
fL: L2
fH: TC2
Tracking
88.0 MHz: L1
108.0 MHz: TC1
Specified Value
MTT-114
Output: Speaker Terminal
(CNP201 Load resistance: 8 ohms)
Adjusting
Point
MTT-111 In motor
Specified
Value
Instrument
Connection
3,000 ± 90 Hz
Output: Speaker
Teaminal
(CNP201 Load
resistance: 8 ohms)
Input: Pin 1 of IC1
Output: Pin 17 of IC2
Test Stage
Instrument
Connection
Specified
Value/Adjusting
Point
IF
T3
Input: Antenna
Output: Pin 19 of IC2
Band Coverage
fL: L4
fH: TC4
600 kHz: L3
1,400 kHz: TC3
Input: Antenna
Output: Speaker
Terminal (CNP201
Load resistance: 8
ohms)
Tracking
TAPE SECTION
• VCO Frequency
Position of each switch or control
Volume control
Function switch
X-BASS
Iuput: Antenna
Output: Speaker
Terminal (CNP201
Load resistance: 8
ohms)
• AM IF/RF
• Tape Speed
Test
Tape
Instrument
Connection
Max
Tape/Power Off
On
Specified
Value
Adjusting Point
76 kHz ± 200 Hz
VR1
• Bias Oscillation
Adjustment Point
L301
82 kHz ± 6 kHz
– 6 kHz
Pin 2 of CNP201
• Playback Amplifier Sensitivity Check
Test Tape
Specified Value
MTT-118
1.8 V ± 3 dB
Pin 13, pin 21 and
ground of IC2
Note:
After preparing the test circuit shown in Fig. 6-1, connect the
Pin 13, Pin 21 and ground of the IC2 with the test circuit, and
measure the value. At this time, apply a standard unmodulated
signal input and adjust the VCO.
Instrument
Connection
Specified Value
Instrument
Connection
Pin 13 of IC2
Pin 21 of IC2
Instrument Connection
Speaker Terminal
(Load resistance: 8 ohms)
G
D
FET : 2SK19 or 2SK54
TO FREQUENCY
COUNTER
S
MAIN PWB
10 kohm
AM
TRACKING
fL
FM ROD ATENNA
Figure 6-1 VCO FREQUENCY TEST CIRCUIT
VR1
VCO
L
AR A3
NTE
NNA
13
FM
DETECTION
T2
17
19 IC2
T3
21
1
L4
AM B
AM IF
L2
IC1
TC4
T1
TC2
TC3
AM
TRACKING
fH
fL
fH
AM BAND
COVERAGE
FM IF
TC1
L1
fL
fH
FM
TRACKING
1
fL
fH
FM BAND
COVERAGE
Figure 6-2 ADJUSTMENT POINTS
–6–
QT-CD111/111C
CD SECTION
Since this CD system incorporates the following automatic
adjustment function, when the pickup is replaced, it is necessary
to reajust it.
Since this CD unit does not need adjustment, the combination
of PWB and laser pickup unit is not restricted.
TEST MODE
Start
Note
Operation
While holding down the "STOP" button, move the FUNCTION/POWER switch to "CD".
Then, release the "STOP" button and, within 0.5 second, connect the TEST POINT to GND (within 0.5 second).
(See Fig. 7)
1. When the CD LID switch is in the OFF position, the unit will be able to enter the test mode.
However, playback cannot be performed in this mode.
2. You can only move the pickup.
3. The LCD display should be the same as it is for normal CD operations.
1
The use of the "UP/CUE" button will move the pickup to the outermost position.
The use of the "DOWN/REVIEW" button will move the pickup to the innermost position.
2
When the "PLAY" button is pressed, the laser will be lit, and when the "STOP" button is pressed, it will be
turned off. Playback will also start and stop when these buttons are pressed.
a. If the "PLAY" button is pressed while in the stop mode, the laser will simply be turned on at first.
b. If the laser is lit and the "PLAY" button is pressed again, playback will start from the current pickup position.
c. If the "STOP" button is pressed, playback will stop. When pressed again, the laser will be turned off.
3
Turning the tracking servo on or off.
a. Each time the PAUSE button is pressed during playback, the tracking servo will be turned on or off.
(Note: If the PLAY button is pressed while in the stop mode, the tracking servo will automatically be
turned on.)
LCD MODE
Start
Display
While holding down the "STOP" button, move the FUNCTION/POWER switch to "CD".
Then, release the "STOP" button and, within 0.5 second, press the REVIEW/DOWN button.
2
1
1 second
3
3
1 second
12
3
* After the number has appeared in the display, each time the "UP/CUE" button is pressed, the display will switch
in the following order: , , and then .
SWITCH PWB – A2
R771
3.9K
SW774
TRACK DOWN/
REVIEW
R772
2.7K
SW773
TRACK UP/
CUE
TEST
POINT
R773
1.8K
R774
1.5K
R776
10K
SW771
PLAY
SW7712
STOP
+B
3
1
TO CD SECTION
Figure 7
–7–
24
27
28
31
34
35
36
SEG4
57
~
60
SEG1
~
9
~
14 17
~
19 21
20
SL+
SL–
+5V
(D)
PU-IN SW
13
14
38
25
VLC3
VDD
SYSTEM
MICROCOMPUTER
37
LID
23
33 22
X701
4MHz
44 30
IC701
IX0105AW
41
COM3
RX771
REMOTE
SENSOR
3 2 1
RC IN
COM0
RES
PICKUP IN
SW702
Figure 8 BLOCK DIAGRAM (1/2)
–8–
M702
SLIDE
MOTOR
M701
SPIN
MOTOR
TRACKING COIL
FOCUS COIL
PICKUP UNIT
M
M
17
18
26
27
11
12
1
2
30
31
1
2
3
4
SL–
SL+
FIN2
FIN1
E
F
Q804
IC804
BA5914FP
10 19 23 25
JP–
44
43
40
32
9 EFMO
IC802
EFMIN
LCHO
CLV+ LC78622E
13 CLV– SERVO/SIGNAL
14 V/P
CONTROL
15 HFL
16 TES
17 TOFF
18 TGL
19 JP+
20 JP– RES. CQCK. COIN
SQOUT. RWC. WRQ
2 4 8 11
1 61 58 57 56 55 54 53
13
28
5
6
7
8
22
2
+7.4V
CONSTANT
VOLTAGE
REGULATOR
CL, DAT, SELIAL CONTROL
49 50 51 52 53 54
FOCUS/TRACKING
/SPIN/SLIDE
DRIVER
3
+5V
15 16 27 28 29
SLI
SLC
CV+
10
12
6
45
44
23 43
+5V
62
XL801
16.93MHz
64
IC801
LA9240M
SERVO AMP.
Q805
LASER +5V
DRIVER
LDO
VCC1
LCD701
CD LCD
K1
XIN
SL–
DRF
XOUT
CD
OPERATION
KEY
SW771~SW774
TO
FD
SPO
SLEO
SLD
XOUT
WRQ
RESET
XIN
~
VVDD
VDD
XVDD
THLD/DEF
CLK
CL
DAT
CE
DRF
CD LID
OPEN/CLOSE
SW761
46
39
38
33
32
37
64
63
62
51
+7.4V
(CD)
R-CH
GND (A)
L-CH
+7.4V (D)
GND (D)
6 POWER GND
1
2
3
4
5
TO
MAIN
SECTION
QT-CD111/111C
Figure 9 BLOCK DIAGRAM (2/2)
–9–
L-CH
ERASE
HEAD
R-CH
REC / PB
HEAD
FROM
CD
SECTION
1
L1
FM RF
2 3
9 6
FM
+B
SW102-H
REC / PB
SW102
REC / PB
B.D
REC / PB
SW102
C,E
P.B
P.B
R-CH
1 (AUDIO GND)
2
CD
L-CH
3
+7.4V
4
+B2
5
(DIGITAL GND)
6
(POWER GND)
5
VCC
MIX
8
4
7
BIAS
OSC.
REC
P. B
SW102-G
REC / PB
8
6
R 12
9 R
IC101
EQULIZER
AMP.
BA331IL
L 1
REG.
23
REC
+B2
SW601
MAIN
SW201-D
POWER /
FUNCTION
AM / FM
SELECT
+B
FM +B
14
10
5 11
6 R
2 L
8
TUNER
+B
TRIG.
VCO
ST.
SWIT.
FF
ST.
DRIV.
7
SP502
R-CH
SPEAKERS
SP501
L-CH
AC 120V
60Hz
AC INPUT
SO651
FF
FF
VCC
21
TUNER
+B
BATTERY
DC12V
[' D' SIZE (UM/SUM-1,
R20 or HP-2)BATTERYx8]
10
12
IC501
LA4597
POWER AMP.
9
DECODER
PHASE
DET.
PILOT
DET.
11 13 15
VR1
VCO
T651
POWER
TRANSFORMER
15
AM / FM
SELECT
+B
19 18
STANBY
8
TU
DRIV.
SW201-C
POWER/
FUNCTION
+B1
12
D651~D654
RECTIFIER
IC203
KIA7808P
VR201
A,B
VOLUME
4
AGC
DET.
MUTE
POST
AMP.
20 17
T2
FM DET
DET.
VOLTAGE
REGULATOR
SW202
A,B
TAPE
6
GND
AM - IF
LEVEL - DBT.
5
CP
455kHz
FM - IF
2
X-BASS
L5
AM OSC
24
OSC
MPX
3
T3
AM IF
RADIO
M601
TAPE
MOTOR
RF
1
22
CF
10.7MHz
IC2
LA1805
FM / AM
IF MPX.
+B1
T1
FM IF
EC / PB
SW102
A,F
POWER/
FUNCTION
SW201-A,B
5 L
C201
L201
REC
REC
P.B
L2
FM OSC
OSC
IC1
LA1186N
FM FRONT END
RF AMP
L3
AM BAR ANT.
F1
B.P.F
FM ROD ANTENNA
QT-CD111/111C
QT-CD111/111C
SWITCH PWB-A2
SW774
TRACK DOWN/
REVIEW
Q805
SS9012H
+B
SW773
TRACK UP/ CUE
R842
22
C849
0.022
C848
1/50
SW771
PLAY/
REPEAT
3
1
3
1
C837 10/16
+B
C838 0.01
R776
10K
C835 0.1/50
+B
SW761
CD LID
OPEN/CLOSE
C839 1/50
SW772
STOP
C840 0.33/50
B
IC701
PIN VOLTAGE PIN VOLTAGE
NO.
NO.
0V
1
33 5V
0V
2
34 0V
0V
3
35 0V
0V
4
36 0V
0V
5
37 0.4V
0V
6
38 5V
3.9V
7
39 3.1V
0V
8
40 1.5V
5V
9
41 2.4V
10 4.1V
42 2.4V
11 4.1V
43 2.4V
12 0V
44 2.4V
13 0V
45 2.4V
14 0V
46 2.4V
15 0.4V
47 2.4V
16 0.4V
48 2.4V
17 0V
49 2.4V
18 0V
50 2.4V
19 0V
51 2.4V
20 0V
52 2.4V
21 5V
53 2.4V
22 2.5V
54 2.4V
23 2.5V
55 2.4V
24 0V
56 2.4V
25 5V
57 2.4V
26 5V
58 2.4V
27 0V
59 2.4V
28 0V
60 2.4V
29 5V
61 2.4V
30 4.8V
62 0V
31 0V
63 0V
3.8V
32
64 0V
R774 R773 R772 R771
2.7K 2.7K 2.7K 3.9K
A
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R736
1K
R721 15K
R724 15K
D740
1N4148
R718 15K
R719 15K
R720 15K
R722 15K
R723 15K
R725 15K
CL
DEF
VCC2
FSS
CLK
REFI
CE
DAT
VR
DRF
LF2
PH1
BH1
CV+ 40
CV– 39
SLOF 38
HFL 37
TES 36
R827
220K
C820
R826 0.0033
220K
30 31 32
R825
1.2K
C818
1/50
R824
10K
C819
47/16
C816
0.001
R821
56K
R822
6.8K
SL+
JP–
29
SL–
SLD
27 28
SP–
SPD
SLEQ
TOFF 35
34
33
R715
15K
R727
1K
+B
R716 10K
R815 C814 R816
47K 0.01 1.5K
C811
0.1
+B
5V
DIGITAL GND
PU IN
WRQ
SQOUT
DRF
SL–
SL+
RWC
CO IN
CQCK
RES
+B
+B
R741
3.3K
Q740
2SC1815 GR
R744
R740
10K
4.7K
R745
10K
+B
R742
1K
PIN VOLTAGE PIN
NO.
NO.
23
2.5V
1
2.5V
24
2
2.5V
25
3
2.5V
26
4
2.5V
27
5
28
2.5V
6
29
2.5V
7
2.5V
8
30
2.5V
9
31
10 2.5V
32
11 2.5V
33
34
12 2.5V
35
13 2.5V
36
14 2.5V
37
15 2.5V
38
16 2.5V
39
17 2.5V
40
18 2.5V
41
19 2.5V
42
20 2.5V
43
21 2.5V
22 0V
44
C741
3.3/50
R743
100K
D741
1N4148
CD SIGNAL
G
R817
82K
R840
22K
X701
4MHz
C740
0.01
VREF
25 26
IC801
VOLTAGE PIN
NO. VOLTAGE
2.5V
45 0V
2.5V
46 2.5V
2.5V
47 2.5V
2.5V
48 0V
2.5V
49 0V
2.5V
50 2.4V
2.5V
51 4.1V
2.2V
52 4.7V
2.2V
53 0V
0V
54 0V
0V
55 5V
5V
56 5V
5V
57 2.5V
4.8V
58 2.5V
0V
59 0.9V
5V
60 0.9V
0V
61 2.1V
0V
62 4.2V
1.5V
63 0V
2.4V
64 5V
2.5V
2.5V
IC802
PIN VOLTAGE PIN VOLTAGE PIN
NO.
NO.
NO.
23 5V
0V
1
45
0V
24 0V
46
2
1.5V
25 0V
3
47
0V
26 0V
48
4
2V
27 0V
49
5
28 0V
5V
6
50
29 0V
0.3V
7
51
0V
8
30 5V
52
2.5V
9
31 2.5V
53
54
10 2.5V
32 0V
55
11 0V
33 0V
34 0V
56
12 0V
35 5V
57
13 0V
36 4.7V
58
14 5V
37 2V
59
15 0V
38 0V
60
16 4.8V
39 0V
61
17 5V
40 2V
62
18 5V
41 4.7V
63
19 0V
42 0V
64
20 0V
43 5V
21 2.5V
44 2.3V
22 0V
VOLTAGE
2V
0V
0.1V
2.2V
0V
2.5V
0V
2.5V
0V
0V
0V
4.1V
4.1V
5V
0V
2.7V
2.4V
0V
0V
0V
MAIN PWB(2/2)
H
• The numbers 1 to 12 are waveform numbers shown in page 17.
1
2
C830
2P
(CH)
R831
1K
R713
1K
R726 1K
R728 1K
R729 1K
R731 1K
R732 1K
R733 1K
F
R839
22K
GND
24
C817
0.47/50
R830
1K
P33
VSS
XOUT
XIN
18 SQOUT P21
RESET
17 DFR P20
PU-IN P23
WRQ P22
C705
0.022
R730
1K
SEG16
COM0
COM1
COM2
COM3
VLC1
VLC2
VLC3
KIDSW AIN7
SIMUKE AIN6
AIN5
P3P40
XCOUT
VDD
21 22 23
C812
330P
R813
33K
R812 C813
R828
15K 0.1
1K
R829
1K
SPG
15
16
+B
RFSM 41
TD
13
JP
14
17 18 19 20
R714
10K
C704
100/10
R734
1K
P00
P01
P02
IC701
IX0105AW
SYSTEM
MICROCOMPUTER
VREF
AVSS
XCIN
D3 RES
D4 COCK
D5 COIN
D6 RWC
D7 SL+
D8 SL–
SEG2
SEG1
SEG0
32 P32
31 P31
30 P30
D1 MUTE
SEG7
SEG6
SEG5
SEG4
SEG3
P10
POWER IN
E
SEG10
SEG9
SEG8
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
SLC 43
RFS– 42
34 TGL
33 JP+
R820
10K
R811
3.3K
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
SEG12
SEG11
15 TO
16 FD
12 TD–
C810
180P
R823
1.2K
C808
0.068
D
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
LDS
10 TH
TA
11
SP
R711
2.7K
C809
0.047
R808
12K
9 SCI
C815
0.0047
R807
1K
R809
27K
R709
1K
R710
10K
C833
0.001
IC801
LA9241M
SERVO AMP.
8 TESI
A GND
1
48 NC
3
4
Figure 10 SCHEMATIC DIAGRAM (1/4)
– 10 –
C845
4.7/50
TBC 47
FSC 46
GND 45
SLI 44
NC
2
R871
4.7K
50 49
C834
0.033
FE–
3
56 55 54 53 52 51
R819
39K
4
57
FE
5
R806
100
58
7 TE
C806
0.033
C807
0.1/50 R805
6.8K
59
6 TE–
C805
0.033
R814
10K
6
R708
1K
7
C701
0.022
C702
0.022
+B
61 60
FA–
LCD701
R802
100K
R804
2.2K
62
1 FIN2
2 FIN1
FA
C804
0.001
R803
15K
63
2
3 E
4 F
5 TB
FD–
C803
0.1/50
C
8
VCC1
64
1
LDD
FW701
5
6
R833
5.6K
R832
56K
+B
F
E
B
A
K
C802
47/16
R801
1K
44
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TR–
TR+
FO+
FO–
GND
PD
TR+
FO+
FO–
TR+
FO+
VR
LD
FO–
TR–
TR–
PICKUP UNIT
+B
C867
10/16
TEST3
LVDD 36
MUTEL 35
34
R873
100
C870
0.0022
R875 R876
10K 10K
C868 R874
10/16 100
+B
LVSS 38
DOUT
B
F
XL801
16.93MHz
LCHO 37
C2F
EMPH
CONT5
CONT4
CONT3
B1801
TR+
TR–
FO–
FO+
PW
FSX
SFSY
SBCK
RWC
WRQ
COIN
SQOUT
RES
CQCK
16M
TST11
4.2M
K
E
A
E
A
B
F
C869
0.0022
C890
100/10
33
R880
100
24 25 26 27 28 29 30 31 32
JP–
17 18 19 20 21 22 23
CONT2
C822
220P
FF 35
34
33
CS
12 CLV+
13 CLV–
14 V/P–
15
16
CONT1
R835
470
V+ 40
V– 39
OF 38
FL 37
S 36
47
XVSS 46
XIN 45
34 NC
33 TEST4
15 HFL
16 TES
MON
K
48
RVSS 39
EMFO
10 EMFIN
11 TEST2
R834
1K
C831
0.0027
VDD
C832
27P
(CH)
R832
56K
FSEQ
C830
2P
(CH)
48 EFLG
47 SBSY
43
IC802
42
41
LC78623D
RCHO 40
SERVO/SIGNAL CONTROL
Vss
1
2
3
4
5
6
7
8
53 52 51 50 49
VVDD
FR
PCK
M 41
R857 27K 6
7
R856 1.2K
8
9
R837
47K
55 54
XOUT
XVDD
MUTER
RVDD
JP–
C 43
S– 42
R833
5.6K
R836
47K
57 56
1 DEFI
2 TAI
4 VVss
5 ISET
+B
+B
62 61 60 59 58
JP+
C833
0.001
1
C841 2
0.047
3 PDO
C842
0.047
R838
33K
C834
0.033
TEST1
R858
680
C 47
C 46
D 45
LI 44
TGL
C845
4.7/50
48 NC
64 63
TOFF
DEF
9
TEST5
+B
C850
0.1
5
4
3
2
1
LD
1
VR
C
C801
0.01
R860
1K
C847
0.01
5
4
3
2
1
LD
PD
CNS801
+B
R871
4.7K
5
4
3
2
1
CNS802
BI802
QT-CD111/111C
32
+B
+B
D802
1N4148
C843
100/10
C873
0.01
TR+
TR–
FO–
FO+
+B
R849
100K
R827
220K
R810
82K
L801
0.82µH
C851
0.022
C821
1/50
2.5V
2.5V
Q804
R877
220 7.4V 8050D 4.8V
+B
VOLTAGE
R878
100
2V
0V
0.1V
2.2V
0V
2.5V
0V
2.5V
0V
0V
0V
4.1V
4.1V
5V
0V
2.7V
2.4V
0V
0V
0V
+B
5.5V
+3.8V
-3.2V
0V 8
9
GND
VIN2'
VIN2
10 VO2+
11
VO212
0V 13 GND
14 OP OUT
C889
10/16
SL–
PU-IN
VIN4' 24
2.5V
7.4V
BIAS IN 23
VCC 22
30
VCC 21
+B
6
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
M
M701
SPINDLE
MOTOR
M
M702
SLED
MOTOR
SW702
PICKUP IN
CD MOTOR PWB-B
+B
7.4V
VIN3' 20
19
VIN3
VO3+ 18
VO3– 17
2.7V
3.8V
3.2V
OP IN + 16
OP IN - 15
ZD801
MTZJ5.6B
+B
L802
0.68µH
POWER GND
DIGITAL GND
DIGITAL +7.4V
L-CH
AUDIO GND
R-CH
C887
0.022
SL+
CNS803
29
SP–
3.5V
3.5V
2.5V
BI803
0V
C846
330/10
SP+
0V
C844
330/10
4 VIN1'
0V 5 NC
0V 6 NC
0V
7 MUTE
GND 28
VO4– 27
VO4+ 26
VIN4 25
0V
3.5V
1 VO13.5V 2 VO1+
2.5V 3 VIN1
IC804
BA5914FP
FOCUS/TRACKING/SPIN/SLIDE DRIVER
+B
6 5 4 3 2 1
P12 1 - E
TO MAIN SECTION
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
7
8
9
10
Figure 11 SCHEMATIC DIAGRAM (2/4)
– 11 –
11
12
QT-CD111/111C
A
R5
330K
C28
0.0015
(STYROL)
VR1
6.8K
(B)
R29
15K
2
VCO
AM/FM
R-CH
MO/ST
C32
0.022
C31
0.022
CF2
C21
0.022
11
C35
1/50
C33
1/50
C34
1/50
R13
3.9K
R14
3.9K
SW201-A
CD
AUTO
FM
AM
TAPE
VC3
fH AM
fL TRACKING
P11 7 - H
TO CD SERVO/
DISPLAY SECTION
VC4
R458 R457
1.2K 1.2K
R-CH
AUDIO GND
L-CH
CD +7.4V
DIGITAL GND
POWER GND
R16
2.2K
C36
0.022
fH
fL
AM BAND
COVERAGE
R456
15K
1
2
3
4
5
6
SW201-B
CD
AUTO
FM
AM
TAPE
R15
2.2K
L4
AM OSC.
VOLT
1.6V
1.6V
6V (6
0.2V
1.6V
0V
0V
0V
2.5V
2.5V
5.1V
0.8V
CF1
TC4
C46
2P
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
12
TC3
D
VCO
MPX VCO
CK 76kHz
13
10
9
8
3
1
2
14
R38
1.8K
6 7
T3
L3
AM BAR ANT.
220P
C11
5
C26 4
22/16
AM IF
3
C20
0.022
T1
C10 FM IF
0.022
C17
0.022
GND
AM IN
2
AGC
1 3
R9
22K
R7
390
C27
3.3/50
18 17 16 15
IC2
LA1805
FM/AF IF MPX.
R17
68
C15
0.022
C23
0.01
R8
3.9K
1
19
AM
OUT
R25
120
20
+B
AM RF
24 20 22 21
R3
47
C9
0.0047
C16
0.0047
C6
15P
(RH)
C25
3.3/50
R11
1.2K
T2
AM
IF
VC1
R1
10
C
C5
33P
(CH)
R27
33K
C24
470P
FM
DET
C4
22P
(CH) TC1
L1
FM ANT.
4
AM
MIX
PIN VOLTAGE
NO.
0.9V
1
1.6V
2
6.8V
3
0V
4
0V
5
6.8V
6
1.4V
7
6.2V
8
6.8V
9
8
R2
33
C2
0.001
FM DET
AM
FM
IF IN OSC
STB
FM
TRACKING
fL
fH
3 5 9 6
FM OSC.
L2
IC1
2
7
C38
C22 0.022
0.0039
C37
220/10
C39
0.022
FM BAND
COVERAGE
fH
fL
C29
10/16
D1
1N4148
C14
0.022
VC2
1
R6
820K
OSC
MIX
IC1
LA1186N
FM FRONT END
RF AMP.
1 2 3
B
C8
4P
(CH)
TC2
F1
B.P.F.
DET
OUT
MPX
IN
L-CH
ROD ANTENA
R455
15K
E
C105
1800P
R103
12K
3
4
4
C107
820P
C111
330P
C108
820P
ERASE HEAD
R
P
SW102-E
R
P
SW102-D
GND
6 7
R110
120
C116
0.018
(ML)
ALC T 2
OUT2
12
R116
3.9K
R119
3.3K
C118
10/16
R118 R120
3.9K 3.3K
R114
8.2K
P
SW102-H
G
4
C114
47/16
C106
1800P
R
C110 11
270P
R108
1K
1
OUT1 8
VCC
FILTER 10
IC101
BA3311L
REC./P.B.
EQUALIZER AMP.
9 IN2
NF2
C112
330P
PRE AMP
R123
3.3K
P
C121
0.01
D103
1N4148
C123
100/10
R125
680K
SW102-G
R
SW102-F
P
R
R122
1.5K
R106
15K
R124
3.3K
(P.P)
C351
0.0022
(ML)
R351
330
L301
4
150
R352 R
C352
220/16
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
1
2
3
4
Figure 12 SCHEMATIC DIAGRAM (3/4)
– 12 –
5
6
C353
0.022
(ML)
C354
2
3
R107
1K
3
NF1
5 IN1
D101
1N4148
1
2
C109
270P
R
C122
0.01
R-CH
1
P
SW102-B
R
P
C113
47/16
(ML)
R117
3.9K
D102
1N4148
L-CH
R
330
R101
SW102-A
R115
3.9K
C119
2.2/50
CNS101
F
SW102-C
CNP101
TAPE
RECORD/PLAYBACK
HEAD
R109
120
R121
1.5K
R113
8.2K
C117
10/16
330
R102
C115
0.018
C120
47/16
R105
15K
NC
R104
12K
QT-CD111/111C
MAIN PWB-A1(1/2)
VOLTAGE
PLAYBACK SIGNAL
RECORD SIGNAL
2
SW202-B
R218
22K
R216
2.2K
R220
3.3K
VR201-A
20K (B)
C214
0.039
(ML)
C233
470/10
1
C223
100/10
VOLUME
4
C224
100/10
C216
0.039(ML)
C215
0.039
SW202-A (ML)
R219
3.3K
C218
0.0039
VR201-B
20K(B)
R217
22K
12
+
–
C229
100/10
C219
0.047 C221
(ML) 0.001
R221
1K
7
C225
220/25
3
C222
0.001
13
11
C232
0.1
(ML)
9
–
+
10
6
C220
0.047
(ML)
R222
1K
C231
0.1
(ML)
5
1
2
2
3
3
SP502
C234
470/10
8
D201
1N4148
1
SPEAKERS
SP501
C230
100/10
X-BASS
C213
0.039
(ML)
C217
0.0039
R215
2.2K
L-CH
AM SIGNAL
R-CH
CD SIGNAL
CNS201
FM SIGNAL
IC202
PIN VOLTAGE
NO.
0.1V
1
0V
2
11.2V
3
0V
4
11.3V
5
0V
6
0.1V
7
12V
8
10.4V
9
10 5.8V
11 0V
12 5.8V
13 10.4V
CNP201
1.2V (0V)
1.9V (1.6V)
1V (1.3V)
1.7V
1.5V (1.7V)
1.5V (1.5V)
0.4V (0.4V)
6.1V (6.4V)
6.1V (6.4V)
1.6V
1.6V
1.6V
( ): AM
IC202
LA4597
POWER AMP.
PX VCO
76kHz
IC2
PIN
NO.
1.6V
13
1.6V
14
6V (6.3V)
15
0.2V (0.7V) 16
1.6V
17
0V
18
0V
19
0V
20
2.5V
21
2.5V
22
5.1V (6.6V) 23
0.8V (1V)
24
VOLTAGE
C226
0.022
O
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
C227
3300/25
+B
+B
1N4148
1N4148
TERMINAL PWB-A3
R351
330
1
C352
220/16
C353
0.022
(ML)
7
C354
0.022
(ML)
Q351
<3V> C8050D
47K
150
R352 R353 <0.7V>
<0.1V>
R354
10
C651
0.022
D652
1N4004
D651
1N4004
C654
0.022
D653
1N4004
AC INPUT
+B
BATTERYS
DC12V["D"size(UM/SUM-1,
R20 or HP2)battery x 8]
PIN
VOLTAGE
NO.
1 <0V> [3.23V]
2 <0V> [0V]
3 <0.6V> [0.6V]
4 <0V> [0V]
5 <0V> [0V]
6 <0V> [0V]
7 <0V> [0V]
8 <7.43V> [7.43V]
9 <0V> [0V]
10 <7.37V> [7.37V]
11 <0.6V> [0.6V]
12 <3.3V> [3.3V]
< >: Recording
[
]: Play
SW601
(241-7)
MAIN
R230
2.7
+B
+
+B
–
8
SO651
+B
IC101
SW102-G
P
R
C652
0.022
1
2
D654
1N4004
1
2
C653
0.022
CD
FM AUTO
AM
TAPE
IC203
KIA7808P
SW201-C VOLTAGE REGULATOR
11.83V
3 OUT
IN 1
C302
C301 8V
2
0V
0.022
0.022
SW201-D
+B
CD
FM AUTO
AM
TAPE
CNS602
D309
D308
CNP602
T601
POWER TRANSFOMER
9
10
Figure 13 SCHEMATIC DIAGRAM (4/4)
– 13 –
11
M
M601
(241-6)
TAPE
MOTOR
12
7
22
CF2
C34
T1
C26
R3
C10
C28
12
11
10
9
8
7
6
5
4
3
2
1
C15
C39
13
14
15
16
17
18
19
20
21
22
23
24
C37
R29
VR1
VCO
L2
T2
R27
C23
C25
C27
R25
C29
C14
L1
R11
C22
C24
L4
C35
SW771
PLAY
• The numbers 1 to 12 are waveform numbers shown in page 17.
CNS801
R38
T3
C33
CNS803
R16
R14
R15
R13
C21
C31
CNS802
5
BI802
1 2 3 4 5 6
C807
1 2 3 4 5
Q805
E C B
1
C840
C802
R801
C801
C803
C805
R804
R802
R803
C804
C806
R805
1 2 3 4 5 6 7 8
R842
R806
R807
C808
C810
R808
R809
R811
C839
9
8
7
6
5
4
3
2
F1
6
5
R829
R812
C809
R834
C850
IC2
1
C38
C848
C849
R828
R826
R827
R817
C812
R814
R815
C814
R816
C822
C830
R837
R835
C837
C838
BI803
R810
1
28
C811
R819
C815
R820
R821
R839
C816
R840
C817
R823
R822
C819
R831
C832
R833
R871
C845
R774
8 29
30
IC804
21
R830
R824
R825
E
C
B
C873
R832
C831
D1
Figure 14 WIRING OF P.W.BOARD (1/2)
– 14 –
14
15
C818
C846
R878
R877
C843
D802
C835
C821
R776
C844
C889
ZD801
L802
C867
R838
C834
R836
C833
R773
IC203
ON
POWER
AM
OFF
TAPE
CNP602
C232
6
SW201
FUNCTION
1 2
C231
R873
C868
33 32
R856
R857
C842
C841
C8
R354
R124
C122
R120
D103
C229
C230
R880
BK
C352
L301
R122
R118
C119
C227
13
12
11
10
R874
TC4
E
C
B
R114
R116
10
12
C118
IC101
11
C120
R125
C121
C851
TC3
1
R849
VC4
R353
C116
C114
R110
C110
8
6
4
2
C117
D101
R858
R6
C16
C11
C36
TC2
R352
R106
C106
R102
C108
R108
R117
R115
XL801
VC2
Q351
C112
9
C111 7
C109 5
3
1
C115
C113
R109
C107
R107
R101
R103
R875
C869
C5
C354
R121
R230
D201
C225
VC3
SW772
STOP
4
3
9
8
7
6
5
4
3
2
1
C887
X701
C4
C6
FW701
R8
R1
1 2 3
3
L3
AM BAR ANTENNA
H
R5
1
VC1
1
R2
C2
CF1
2
SWITCH PWB-A2
R9
IC1
16
C32
C20
C17
2
3
10
1
2
3
R7
BK
35 30
7
R876
C870
R713
SW761
CD LID
OPEN/CLOSE
R17
D308
R104
R113
R123
R119
R217
R218
B
C
E
FW701
5 4
11
TC1
R772
R771
2
1
LCD701
8 7 6 54 3 2 1
R716
6
1
F
9
D309
BR
GY
GY
GY
GY
GY
3
1
BK
WH
WH
WH
WH
5
60
17
IC801
C813
25
40
20
15
48
64
R742
C741
16
45
50
C740
C847
1
64
5
60
8
BI801
1
17
55
49
R740
D740
R741
R743
C9
SW773
SW774
R216
R215
C301
10
1
8
64
17
20
15
R105
C105
C233
REC
P.B
R813
1
Q740
C890
C820
35 30
R860
10
55
C222
16
20
15
IC802
45
50
48
10
55
49
R724
L801
35 30
C704
25
40
R715
R736
33 32
C224
Q804
C702
IC202
C213
C234
R351
SW102
12
R734
5
60
3
TRACK UP/CUE
TRACK DOWN/
REVIEW
G
VR201
VOLUME
R456
33 32
R714
C705
C701
R727
25
40
R725
R726
R728
R723
R729
R722
R731
R720
R732
R719
R733
R718
R745
R744
D741
A
SW203
X-BASS
C226
C223
B
C221
C219
R219
R730
R721
49
R709
R710
R708
IC701
45
50
48
C220
C215
C123
G
BR
BK
BK
BK
BK
BK
BK
BK
E
R222
A
R455
R457
R458
D
C
R221
C217
C214
A
C218
B
B
R711
D
B
C
C216
R220
D102
C353
MAIN PWB-A1
F
D
B
A
A
C351
1 2 3 4 CNP101
1 2 3
H
E
C
CNP201
1
2
3
C302
FM AUTO
CD
QT-CD111/111C
QT-CD111/111C
SPEKERS
SP502
R-CH
SP501
L-CH
COLOR TABLE
BR
CNS201
SW601
TAPE MAIN
(241-7)
1 WH
2 BK
3 RD
M601
TAPE MOTOR
(241-6)
TAPE
ERASE HEAD
(241-5)
RED
OR
ORANGE
YL
YELLOW
GR
GREEN
BL
BLUE
VL
VIOLET
GY
GRAY
WH(W)
WHITE
BK
BLACK
PK
PINK
RD
BK
BR
WH
YL
RECORD/PLAYBACK
HEAD(241-4)
BROWN
RD(R)
BK
CNS101
4
3
2
1
BK
WH
RD
BK
BK
(211)
T601
POWER
TRANSFORMER
TERMINAL PWB-A3
+
BATTERYS
DC12V["D"SIZE(UM/SUM-1,
R20 or HP2)battery 8]
C653
(236)
RD
D653
D652
RD
C652
C654
2
1
D654
D651
SO651
AC SOCKET
AC 120V
60Hz
CNS602
C651
OR
OR
PICK UP UNIT
CD MOTOR PWB-B
-
5 4 3 2 1
+
8 7 6 5 4 3 2 1
SW702
SPENDLE MOTOR
M701
CNP803
PICKUP IN
F3895AF
SLED MOTOR
M702
6
5
4
3
2
1
-
+
FM ROD ANTENNA(213)
7
8
9
10
Figure 15 WIRING OF P.W.BOARD (2/2)
– 15 –
11
12
QT-CD111/111C
NOTES ON SCHEMATIC DIAGRAM
• Resistor:
To differentiate the units of resistors, the symbol as K and M
are used: the symbol K means 1000 ohm and the symbol M
means 1000 kohm and the resistor without any symbol is an
ohm resistor. The resistor designated "Fusible" is a fuse type
resistor
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic capacitor,
the expression “capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chassis
with no signal given.
REF. NO
DESCRIPTION
1. Tuner
( ): AM mode
Marking except for ( ): FM mode
2. CD
( ): Play mode
Marking except for ( ): Stop state
3. Deck section
( ): Record mode
Marking except for ( ): Playback mode
Display / Control section:
( ): Active state
Marking except for ( ): CD Function mode at stop state
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• Parts marked with “
”(
) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
POSITION
REF. NO
DESCRIPTION
POSITION
SW102
RECODE/PLAYBACK
OFF—ON
SW761
SW201
FUNCTION/POWER
TAPE—AM—
FM AUTO—CD/
OFF—ON
SW771
PLAY/REPEAT
OFF—ON
SW772
STOP
OFF—ON
SW773
TRACK UP/CUE
OFF—ON
SW774
TRACK DOWN/REVIEW
OFF—ON
SW203
X-BASS
OFF—ON
SW601
TAPE MAIN
OFF—ON
SW702
PICKUP IN
OFF—ON
CD LID OPEN/CLOSE
OFF—ON
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
2SC1815 GR
Figure 16 TYPES OF TRANSISTOR
– 16 –
QT-CD111/111C
WAVEFORMS OF CD CIRCUIT
1
2
5ms
0.50 V
IC801 20 F.E
5ms
5.0 V
IC801 54 DRF
STOP
FOCUS
PLAY
SERCH
50ms
10.0 V
JP+
7
50ms
10.0 V
JP-
8
50ms
0.50 V
JP
9
50ms
1.00 V
TE
6
0.5ms
10.0 V
JP+
7
0.5ms
10.0 V
JP-
8
0.5ms
0.50 V
JP
9
0.5ms
1.00 V
TE
10
20ms
1.00 V
SPO
11
20ms
2.00 V
CLV+
10
50ms
1.00 V
SPO
11
50ms
2.00 V
CLV+
3
1
3
6
CUE
0.5ms
1.00 V
HF
1
4
0.5ms
5.0 V
HFL
5
0.5ms
5.0 V
TES
3
0.5ms
1.00 V
H.F
4
0.5ms
5.0 V
HFL
5
0.5ms
5.0 V
TES
2
REVIEW
3
REVIEW
PLAY
NORMAL DISC
TN0=01
1
6
50ms
10.0 V
JP+
7
50ms
10.0 V
JP-
8
50ms
0.50 V
JP
9
50ms
1.00 V
TE
6
0.5ms
10.0 V
JP+
7
0.5ms
10.0 V
JP-
8
0.5ms
0.50 V
JP
9
0.5ms
1.00 V
TE
2
3
PLAY
TCD-712 (140mm)
TN0=01
CUE
PLAY
TCD-712
12
5s
100mV
SLD
1
12
0.5s
100mV
SLD
1
– 17 –
QT-CD111/111C
TROUBLESHOOTING (CD SECTION)
When the CD does not function
When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean
the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens.
Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
• The CD function will not work.
The CD operating keys don't work.
Yes
Check the CD, DPS microcomputer (IC701), power supply, 4.19
MHz and 16.93 MHz clock, and reset terminal.
Yes
Check the waveform of SCK, SO (DATA) and SI (COMM).
Yes
See if the pick-up is in the pick-up in SW702 position.
Yes
If the items mentioned above are OK, check the main
microcomputer IC701.
• The CD operating keys work.
Check the Focus - HF system.
Playback can be performed without a disc.
Yes
Does the pick-up move up and down twice?
Focus search OK.
Yes
No
Does the output waveform of IC801(16)(FD) match that shown in
Fig. 18?
Check the area around IC804-BI801/CNS801.
Yes
No
Check the IC801(50)(CLK) line, 4MHz.
Check the microcomputer data on pins (51)(CL), (52)(DAT) and
(53)CE.
Focus search
is performed
two times
when play
operation is
done without
disc.
0.5s
0.50 V
IC801 16 FD
0.5s
0.50 V
IC801 15 TD
1
2
Figure 18
– 18 –
QT-CD111/111C
• Playback can only be performed when a disc
is loaded.
No
Check the laser diode driver.
Check the area around IC801(16) - (21) (focus servo circuit).
No
If the disc is not turning, the DRF
should not change to "H".
Is the Focus servo active? (Can you hear it working?)
Yes
▼
Yes
Does the DRF signal change from "L" to "H"?
Check the spin
system.
Yes
Yes
No
Level is abnormal.
▼
Is HF waveform normal (see the Fig. 19-1, 2)?
Yes
Check the periphery
of IC801 pins 41 and
42.
Yes
Check the tracking system.
HF
0.1V/DIV
0.5µsec/DIV(DC)
(When playing
back the disc)
▼
Waveform is unstable.
Check the spin
system.
Waveform in case
of normal playback
0.5s
1.00 V
IC801 16 FD
0.5s
10.0 V
IC801 12 CLV+
2
1
3
0.5s
10.0 V
IC801 54 DRF
4
0.5s
2.00 V
IC801 7 TE
Figure 19-1
Figure 19-2
• Check the tracking system.
Check waveform of IC801 pin 7 (TE).
The waveform shown in Fig. 19-3
appears, and no-disc state appears
soon.
Play is possible in
TEST mode.
Yes
Tracking servo is inoperative.
Yes
Although IL is possible,
play is impossible.
Yes
Data cannot be read.
Yes
Yes
Normal jump is impeded, and the
program top cannot be reached.
Check the VCO-PLL system.
5ms
1.00 V
IC801 7 TE
4
5 ms
5.0 V
IC801 54 DRF
3
Figure 19-3
– 19 –
Check the periphery of IC801
pin 8 to pin 15, and IC804 to
BI801/CNS801.
Yes
Check the periphery of
IC801 pin 14.
QT-CD111/111C
• Checking the spin system.
Play operation is performed without disc.
Yes
The spin driver circuit is normal.
The turntable rotates a little.
Yes
No
The turntable fails to rotate or rotates at high speed.
Yes
Check the periphery of IC801 pins 23 to 27, pin 39 and pin 40,
IC802 pin 12 and pin 13, IC804 to BI803/CNS803.
• Checking the VCO-PLL system
Play operation is performed when disc exits.
Yes
Although HF waveform is normal, TOC data cannot be read.
Yes
Check PDO waveform (Fig. 20).
Error
Check the IC801 pins 43 and 44, IC802 pins 3, 5, 7, 9 and 10.
0.5s
1.00 V
IC802 3 PDO
2
0.5s
1.00 V
IC801 16 FD
Stop --> Play
As VCO frequency is locked at
4.32 M Hz,
voltage of PDO
rises and stabilizes.
3
Figure 20
•
Although HF waveform is normal and the time
indication is normal, no sound is emitted.
Check IC802 pin 48 (EFLG).
No
Yes
Check IC802 pins 37and 40.
Abnomal
Check the periphery of IC803 (OPAMP).
– 20 –
Usually, the number of pulses of flawless disc is 100 pulses/sec
or less.
QT-CD111/111C
FUNCTION TABLE OF IC
IC701 RH-iX0105AWZZ (IX0105AW): System Control Microcomputer
Pin No.
Terminal
Name
Port Name
Input/
Output
Function
1*
P03
MTCONT2
Input/Output Used to input or output 4 bits at a time. When the output latch is set to "1", the unit will be in the
input mode. The key-on wakeup function, which can be switched on or off by the software, and a
pull-up transistor, which can be turned on or off by the software, are built in.
2*-5*
P10-P13
POWER-IN,
DATA (VOL),
STB (VOL)
Input/Output Used to input or output 4 bits at a time. When the output latch is set to "1", the unit will be in the
input CK (VOL), mode.The key-on wakeup function, which can be switched on or off by the software,
and a pull-up transistor,which can be turned on or off by the software, are built in.
6*
D0
POWER-ON
Input/Output Each terminal can be used to input or output 1 bit at a time. The output section has a latch which
holds 1 bit. One of the D ports is assigned by register Y as a data point, to execute input or output.
To use the port for input, set the output latch for that bit to "1". All of the output latches on port D can
be set to "1" using the CLD command.
7
D1
MUTE
Input/Output Each terminal can be used to input or output 1 bit at a time. The output section has a latch which
holds 1 bit. One of the D ports is assigned by register Y as a data point, to execute input or output.
To use the port for input, set the output latch for that bit to "1". All of the output latches on port D can
be set to "1" using the CLD command.
8*-12
D2-D6
SYNC-OUT,
RES,CQCK,
COIN,REC
Input/Output Each terminal can be used to input or output 1 bit at a time. The output section has a latch which
holds 1 bit. One of the D ports is assigned by register Y as a data point, to execute input or output.
To use the port for input, set the output latch for that bit to "1". All of the output latches on port D can
be set to "1" using the CLD command.
13,14
D7,D8
SL+,SL-
Input/Output Each terminal can be used to input or output 1 bit at a time. The output section has a latch which
holds 1 bit. One of the D ports is assigned by register Y as a data point, to execute input or output.
To use the port for input, set the output latch for that bit to "1". All of the output latches on port D can
be set to "1" using the CLD command.
15*,16*
D9,D10
SRS2,SRS1
Input/Output Each terminal can be used to input or output 1 bit at a time. The output section has a latch which
holds 1 bit. One of the D ports is assigned by register Y as a data point, to execute input or output.
To use the port for input, set the output latch for that bit to "1". All of the output latches on port D can
be set to "1" using the CLD command.
17
P20
DRF
Input/Output Used to receive 4 bits at a time.
18
P21
SQOUT
Input/Output Used to receive 4 bits at a time.
19
P22
WRQ
Input/Output Used to receive 4 bits at a time.
20
P23
PU-IN
Input/Output Used to receive 4 bits at a time.
21
RESET
22
XIN
23
XOUT
24
VSS
—
25
VDD
—
26*
XCOUT
27
XCIN
28
AVSS
Input
GND input terminal for the A-D converter.
29
VREF
Input
Reference voltage input terminal for the A-D converter.
30
P30
REMOCONINT2
Input
Used to receive 4 bits at a time.
31
P31
TORAY1
Input
Used to receive 4 bits at a time.
32
P32
TORAY2
Input
Used to receive 4 bits at a time.
33
P33
Input
Used to receive 4 bits at a time.
34
P40
Input
Used to receive 4 bits at a time.
35-37
AIN5-AIN7
Input
Used to receive 4 bits at a time.
38-40
VLC3-VLC1
Input
LCD power input terminals. To use the internal resistor, connect VLC3 to VDD (if a brightness
control is needed, connect VLC3 to VDD through a resistor). When an external power supply is
used, applyvoltages as follows: 0<VLC1<VLC3<VLCD<VDD.
41-44
COM3-COM0
Output
LCD common output terminals.
45-61*
SEG16-SEG0
(45*-56*)
Output
LCD segment output terminals.
62*-64*
P00-P02
Input/Output Reset pulse input/output terminal. When a reset is caused by the watch dog timer, an "L" level will
be output. The output is an N channel open drain.
Input
Input/output terminals for the main clock generation circuit. Used by connecting a ceramic resonator
between the XIN and XOUT terminals. There is a built-in feedback resistor between the XIN and
XOUT terminals.
Output
Input/output terminals for the main clock generation circuit. Used by connecting a ceramic resonator
between the XIN and XOUT terminals. There is a built-in feedback resistor between the XIN and
XOUT terminals.
GND input terminal.
Positive power supply terminal.
Output
Input/output terminals for the sub clock generation circuit. Used by connecting a crystal oscillator
between the XCIN and XCOUT terminals. There is a built-in feedback resistor between the XCIN
and XCOUT terminals.
Input
Input/output terminals for the sub clock generation circuit. Used by connecting a crystal oscillator
between the XCIN and XCOUT terminals. There is a built-in feedback resistor between the XCIN
and XCOUT terminals.
Input/Output Used to input or output 4 bits at a time. When the output latch is set to "1", the unit will be in the
input mode. The key-on wakeup function, which can be switched on or off by the software, and a
pull-up transistor, which can be turned on or off by the software, are built in.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
– 21 –
QT-CD111/111C
—MEMO—
– 22 –
QT-CD111/111C
PARTS GUIDE
MODEL
QT-CD111
QT-CD111C
“HOW TO ORDER REPLACEMENT PARTS”
To have your order filled promptly and correctly, please furnish the
following information.
1. MODEL NUMBER
2. REF. No.
3. PART NO.
4. DESCRIPTION
For U.S.A. only
Contact your nearest SHARP Parts Distributor to order.
For location of SHARP Parts Distributor,
Please call Toll-Free;
1-800-BE-SHARP
MARK: SPARE PARTS-DELIVERY SECTION
Explanation of capacitors/resistors parts codes
Capacitors
Resistors
VCC ....................... Ceramic type
VCK ........................ Ceramic type
VCT ........................ Semiconductor type
VC • • MF ............... Cylindrical type (without lead wire)
VC • • MN ............... Cylindrical type (without lead wire)
VC • • TV ................ Square type (without lead wire)
VC • • TQ ............... Square type (without lead wire)
VC • • CY ............... Square type (without lead wire)
VC • • CZ ............... Square type (without lead wire)
VC • • • • • • • • • J .. The 13th character represents capacity difference.
("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%,
"C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)
VRD ....................... Carbon-film type
VRS ........................ Carbon-film type
VRN ....................... Metal-film type
VR • • MF ............... Cylindrical type (without lead wire)
VR • • MN ............... Cylindrical type (without lead wire)
VR • • TV ................ Square type (without lead wire)
VR • • TQ ............... Square type (without lead wire)
VR • • CY ............... Square type (without lead wire)
VR • • CZ ............... Square type (without lead wire)
VR • • • • • • • • • J .. The 13th character represents error.
("J" ±5%, "F" ±1%, "D" ±0.5%.)
If there are no indications for the electrolytic capacitors, error is ±20%.
If there are no indications for other parts, the resistors are ±5%
carbon-film type.
NOTE:
Parts marked with “
” are important for maintaining the safety of the set.
Be sure to replace parts with specified ones for maintaining the safety and performance of the set.
– 23 –
QT-CD111/111C
NO.
PRICE
RANK
PART CODE
DESCRIPTION
INTEGRATED CIRCUITS
IC1
IC2
IC101
VHILA1186N/-1
VHILA1805//-1
VHIBA3311L/-1
J
J
J
IC202
IC203
IC701
VHILA4597//-1
VHIKIA7808P-1
RH-IX0105AWZZ
J
J
J
IC801
IC802
IC804
VHILA9241M/-1
VHILC78623D-1
VHIBA5914FP-1
J
J
J
AE FM Front End,LA1186N
AM FM/AF IF MPX.,LA1805
AK REC./P.B.Equalizer Amp.,
BA3311L
AH Power Amp.,LA4597
AH Voltage Regulator,KIA7808P
BA System Microcomputer,
IX0105AW
AS Servo Amp.,LA9241M
AY Servo/Signal Control,LC78623D
AN Focus/Tracking/Spin/Slide
Driver,BA5914FP
TRANSISTORS
Q351
Q740
Q804
Q805
VSS8050D///-1
VS2SC1815GR-1
VSS8050D///-1
VSS9012H///-1
J
J
J
J
AC
AB
AC
AC
Silicon,NPN,8050 D
Silicon,NPN,2SC1815 GR
Silicon,NPN,8050 D
Silicon,PNP,9012 H
VHD1N4148//-1
VHD1N4148//-1
VHD1N4148//-1
VHD1N4148//-1
VHD1N4004//-1
VHD1N4148//-1
VHD1N4148//-1
VHEMTZJ5R6B-1
J
J
J
J
J
J
J
J
AA
AA
AA
AA
AB
AA
AA
AD
Silicon,1N4148
Silicon,1N4148
Silicon,1N4148
Silicon,1N4148
Silicon,1N4004
Silicon,1N4148
Silicon,1N4148
Zener,5.6V,MTZJ5.6B
RFILF0001SJZZ
RFILA0001SJZZ
RFILR0001SJZZ
J
J
J
AD FM IF
AD AM IF
AD FM Band Pass Filter
RCILI0001SJZZ
RCILI0002SJZZ
RCILI0003SJZZ
RTRNP0001SJZZ
J
J
J
J
AD
AD
AD
AP
FM IF
FM Detection
AM IF
Power
RCILR0001SJZZ
RCILB0001SJZZ
RCILA0001SJZZ
RCILB0002SJZZ
RCILB0003SJZZ
VP-DHR82K0000
VP-DHR68K0000
J
J
J
J
J
J
J
AB
AE
AD
AC
AD
AC
FM RF
OSC,FM
AM Bar Antenna
OSC,AM
OSC,Bias
0.82 µH,Choke
0.68 µH
J
J
AC 6.8 kohms (B),Semi-VR [VCO]
AE 20 kohms (B),Semi-VR [Volume]
DIODES
!
D1
D101~103
D201
D308,309
D651~654
D740,741
D802
ZD801
FILTERS
CF1
CF2
F1
TRANSFORMERS
!
T1
T2
T3
T601
COILS
L1
L2
L3
L4
L301
L801
L802
VARIABLE RESISTORS
VR1
VR201
RVR-M0001SJZZ
RVR-B0001SJZZ
VARIABLE CAPACITORS
VC1~4
RVC-R0001SJZZ
J
AK Variable Capacitor with Trimmer
(TC1~4)
J
J
AD Ceramic,4 MHz
AE Ceramic,16.93 MHz
J
J
J
J
J
J
J
J
J
AA
AA
AA
AA
AA
AB
AB
AA
AB
VIBRATORS
X701
XL801
RCRM-0001SJZZ
RCRM-0002SJZZ
CAPACITORS
C2
C4
C5
C6
C8
C9
C10
C11
C14,15
VCKYPA1HB102K
VCCCPA1HH220J
VCCCPA1HH330J
VCCRPA1HH150J
VCCCPA1HH4R0C
VCKYPA1HB472K
VCKYPA1HF223Z
VCKYPA1HB221K
VCKYPA1HF223Z
0.001 µF,50V
22 pF (CH),50V
33 pF (CH),50V
15 pF (RH),50V
4 pF (CH),50V
0.0047 µF,50V
0.022 µF,50V
220 pF,50V
0.022 µF,50V
NO.
C16
C17
C20,21
C22
C23
C24
C25
C26
C27
C28
C29
C31,32
C33~35
C36
C37
C38,39
C105,106
C107,108
C109,110
C111,112
C113,114
C115,116
C117,118
C119
C120
C121,122
C123
C213~216
C217,218
C219,220
C221,222
C223,224
C225
C226
C227
C229,230
C231,232
C233,234
C301,302
C351
C352
C353
C354
C651~654
C701,702
C704
C705
C740
C741
C801
C802
C803
C804
C805,806
C807
C808
C809
C810
C811
C812
C813
C814
C815
C816
C817
C818
C819
C820
C821
C822
C830
C831
C832
C833
C834
C835
C837
C838
C839
C840
C841,842
C843
–1–
PRICE
RANK
PARTS CODE
VCKYPA1HB472K
VCKYPA1HF223Z
VCKYPA1HF223Z
VCKYPA1HB392K
VCKYPA1HF103Z
VCKYPA1HB471K
RC-GZA335AF1H
RC-GZA226AF1C
RC-GZA335AF1H
VCQSMV1HS152J
RC-GZA106AF1C
VCTYPA1CU223M
RC-GZA105AF1H
VCKYPA1HF223Z
RC-GZA227AF1A
VCKYPA1HF223Z
VCKYPA1HB182K
VCKYPA1HB821K
VCKYPA1HB271K
VCKYPA1HB331K
RC-GZA476AF1C
VCQYKA1HM183K
RC-GZA106AF1C
RC-GZA225AF1H
RC-GZA476AF1C
VCKYPA1HF103Z
RC-GZA107AF1A
VCQYKA1HM393K
VCKYPA1HB392K
VCQYKA1HM473K
VCKYPA1HB102K
RC-GZA107AF1A
RC-GZA227AF1E
VCKYPA1HF223Z
RC-GZW338AF1E
RC-GZA107AF1A
VCQYKA1HM104K
RC-GZA477AF1A
VCKYPA1HF223Z
VCQYKA1HM222K
RC-GZA227AF1C
VCQYKA1HM223K
VCQYKA1HM562K
VCKYPA1HF223Z
VCKYPA1HF223Z
RC-GZA107AF1A
VCKYPA1HF223Z
VCKYPA1HF103Z
RC-GZA335AF1H
VCKYPA1HF103Z
RC-GZA476AF1C
RC-GZA104AF1H
VCKYPA1HB102K
VCTYPA1CU333M
RC-GZA104AF1H
VCTYPA1CU683M
VCTYPA1CU473M
VCKYPA1HB181K
VCTYPA1CU104M
VCKYPA1HB331K
VCTYPA1CU104M
VCTYPA1CU103M
VCKYPA1HB472K
VCKYPA1HB102K
RC-GZA474AF1H
RC-GZA105AF1H
RC-GZA476AF1C
VCKYPA1HB332K
RC-GZA105AF1H
VCKYPA1HB221K
VCCCPA1HH2R0C
VCKYPA1HB272K
VCCCPA1HH270J
VCKYPA1HB102K
VCTYPA1CU333M
RC-GZA104AF1H
RC-GZA106AF1C
VCTYPA1CU103M
RC-GZA105AF1H
RC-GZA334AF1H
VCTYPA1CU473M
RC-GZA107AF1A
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
AB
AB
AB
AA
AB
AA
AB
AB
AB
AB
AB
AB
AB
AB
AB
AB
AB
AA
AA
AA
AB
AB
AB
AB
AB
AB
AB
AB
AA
AB
AA
AB
AB
AB
AG
AB
AB
AC
AB
AA
AB
AB
AA
AB
AB
AB
AB
AB
AB
AB
AB
AB
AA
AB
AB
AB
AB
AA
AB
AA
AB
AE
AB
AA
AA
AB
AB
AA
AB
AA
AA
AA
AA
AA
AB
AB
AB
AE
AB
AA
AB
AB
DESCRIPTION
0.0047 µF,50V
0.022 µF,50V
0.022 µF,50V
0.0039 µF,50V
0.01 µF,16V
470 pF,50V
3.3 µF,50V,Electrolytic
22 µF,16V,Electrolytic
3.3 µF,50V,Electrolytic
0.0015 µF,50V,Styrol
10 µF,16V,Electrolytic
0.022 µF,16V
1 µF,50V,Electrolytic
0.022 µF,50V
220 µF,10V,Electrolytic
0.022 µF,50V
1800 pF,50V
820 pF,50V
270 pF,50V
330 pF,50V
47 µF,16V,Electrolytic
0.018 µF,50V,Mylar
10 µF,16V,Electrolytic
2.2 µF,50V,Electrolytic
47 µF,16V,Electrolytic
0.01 µF,16V
100 µF,10V,Electrolytic
0.039 µF,50V,Mylar
0.0039 µF,50V
0.047 µF,50V,Mylar
0.001 µF,50V
100 µF,10V,Electrolytic
220 µF,25V,Electrolytic
0.022 µF,50V
3300 µF,25V,Electrolytic
100 µF,10V,Electrolytic
0.1 µF,50V,Mylar
470 µF,10V,Electrolytic
0.022 µF,50V
0.0022 µF,50V,Mylar
220 µF,16V,Electrolytic
0.022 µF,50V,Mylar
0.0056 µF,50V,Mylar
0.022 µF,50V
0.022 µF,50V
100 µF,10V,Electrolytic
0.022 µF,50V
0.01 µF,16V
3.3 µF,50V,Electrolytic
0.01 µF,16V
47 µF,16V,Electrolytic
0.1 µF,50V,Electrolytic
0.001 µF,50V
0.033 µF,16V
0.1 µF,50V,Electrolytic
0.068 µF,16V
0.047 µF,16V
180 pF,50V
0.1 µF,16V
330 pF,50V
0.1 µF,16V
0.01 µF,16V
0.0047 µF,50V
0.001 µF,50V
0.47 µF,50V,Electrolytic
1 µF,50V,Electrolytic
47 µF,16V,Electrolytic
0.0033 µF,50V
1 µF,50V,Electrolytic
220 pF,50V
2 pF (CH),50V
0.0027 µF,50V
27 pF (CH),50V
0.001 µF,50V
0.033 µF,16V
0.1 µF,50V,Electrolytic
10 µF,16V,Electrolytic
0.01 µF,16V
1 µF,50V,Electrolytic
0.33 µF,50V,Electrolytic
0.047 µF,16V
100 µF,10V,Electrolytic
QT-CD111/111C
NO.
C844
C845
C846
C847
C848
C849
C850
C851
C867,868
C869,870
C873
C887
C889
C890
PRICE
RANK
PART CODE
RC-GZA337AF1A
RC-GZA475AF1H
RC-GZA337AF1A
VCTYPA1CU103M
RC-GZA105AF1H
VCKYPA1HF223Z
VCTYPA1CU104M
VCKYPA1HF223Z
RC-GZA106AF1C
VCKYPA1HB222K
VCKYPA1HF103Z
VCKYPA1HF223Z
RC-GZA106AF1C
RC-GZA107AF1A
DESCRIPTION
J
J
J
J
J
J
J
J
J
J
J
J
J
J
AB
AB
AB
AE
AB
AB
AB
AB
AB
AA
AB
AB
AB
AB
330 µF,10V,Electrolytic
4.7 µF,50V,Electrolytic
330 µF,10V,Electrolytic
0.01 µF,16V
1 µF,50V,Electrolytic
0.022 µF,50V
0.1 µF,16V
0.022 µF,50V
10 µF,16V,Electrolytic
0.0022 µF,50V
0.01 µF,16V
0.022 µF,50V
10 µF,16V,Electrolytic
100 µF,10V,Electrolytic
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
10 ohm,1/4W
33 ohms,1/6W
47 ohms,1/4W
330 kohms,1/6W
820 kohms,1/6W
390 ohms,1/4W
3.9 kohms,1/6W
22 kohms,1/6W
1.2 kohms,1/6W
3.9 kohms,1/6W
2.2 kohms,1/6W
68 ohms,1/4W
120 ohms,1/6W
33 kohms,1/6W
15 kohms,1/6W
1.8 kohms,1/4W
330 ohms,1/6W
12 kohms,1/6W
15 kohms,1/6W
1 kohm,1/6W
120 ohms,1/6W
8.2 kohms,1/6W
3.9 kohms,1/6W
3.3 kohms,1/6W
1.5 kohms,1/6W
3.3 kohms,1/6W
680 kohms,1/6W
2.2 kohms,1/6W
22 kohms,1/6W
3.3 kohms,1/6W
1 kohm,1/6W
2.7 ohms,1/4W
330 ohms,1/4W
150 ohms,1/4W
47 kohms,1/4W
10 ohm,1/4W
15 kohms,1/6W
1.2 kohms,1/6W
1 kohm,1/6W
10 kohm,1/6W
2.7 kohms,1/6W
1 kohm,1/6W
10 kohm,1/6W
15 kohms,1/6W
10 kohm,1/6W
15 kohms,1/6W
15 kohms,1/4W
15 kohms,1/6W
1 kohm,1/6W
1 kohm,1/4W
1 kohm,1/6W
1 kohm,1/4W
1 kohm,1/6W
1 kohm,1/6W
4.7 kohms,1/6W
3.3 kohms,1/6W
1 kohm,1/6W
100 kohm,1/6W
10 kohm,1/6W
3.9 kohms,1/4W
2.7 kohms,1/4W
1.8 kohms,1/4W
1.5 kohms,1/4W
10 kohm,1/4W
1 kohm,1/6W
NO.
R802
R803
R804
R805
R806
R807
R808
R809
R810
R811
R812
R813
R814
R815
R816
R817
R819
R820
R821
R822
R823
R824
R825
R826,827
R828,829
R830,831
R832
R833
R834
R835
R836,837
R838
R839,840
R842
R849
R856
R857
R858
R860
R871
R873,874
R875,876
R877
R878
R880
RESISTORS
R1
R2
R3
R5
R6
R7
R8
R9
R11
R13,14
R15,16
R17
R25
R27
R29
R38
R101,102
R103,104
R105,106
R107,108
R109,110
R113,114
R115~118
R119,120
R121,122
R123,124
R125
R215,216
R217,218
R219,220
R221,222
R230
R351
R352
R353
R354
R455,456
R457,458
R708,709
R710
R711
R713
R714
R715
R716
R718~723
R724
R725
R726
R727
R728,729
R730
R731~734
R736
R740
R741
R742
R743
R744,745
R771
R772
R773
R774
R776
R801
VRD-ST2EE100J
VRD-ST2CD330J
VRD-ST2EE470J
VRD-ST2CD334J
VRD-ST2CD824J
VRD-ST2EE391J
VRD-ST2CD392J
VRD-ST2CD223J
VRD-ST2CD122J
VRD-ST2CD392J
VRD-ST2CD222J
VRD-ST2EE680J
VRD-ST2CD121J
VRD-ST2CD333J
VRD-ST2CD153J
VRD-ST2EE182J
VRD-ST2CD331J
VRD-ST2CD123J
VRD-ST2CD153J
VRD-ST2CD102J
VRD-ST2CD121J
VRD-ST2CD822J
VRD-ST2CD392J
VRD-ST2CD332J
VRD-ST2CD152J
VRD-ST2CD332J
VRD-ST2CD684J
VRD-ST2CD222J
VRD-ST2CD223J
VRD-ST2CD332J
VRD-ST2CD102J
VRD-ST2EE2R7J
VRD-ST2EE331J
VRD-ST2EE151J
VRD-ST2EE473J
VRD-ST2EE100J
VRD-ST2CD153J
VRD-ST2CD122J
VRD-ST2CD102J
VRD-ST2CD103J
VRD-ST2CD272J
VRD-ST2CD102J
VRD-ST2CD103J
VRD-ST2CD153J
VRD-ST2CD103J
VRD-ST2CD153J
VRD-ST2EE153J
VRD-ST2CD153J
VRD-ST2CD102J
VRD-ST2EE102J
VRD-ST2CD102J
VRD-ST2EE102J
VRD-ST2CD102J
VRD-ST2CD102J
VRD-ST2CD472J
VRD-ST2CD332J
VRD-ST2CD102J
VRD-ST2CD104J
VRD-ST2CD103J
VRD-ST2EE392J
VRD-ST2EE272J
VRD-ST2EE182J
VRD-ST2EE152J
VRD-ST2EE103J
VRD-ST2CD102J
PRICE
RANK
PARTS CODE
VRD-ST2CD104J
VRD-ST2CD153J
VRD-ST2CD222J
VRD-ST2CD682J
VRD-ST2CD101J
VRD-ST2CD102J
VRD-ST2CD123J
VRD-ST2CD273J
VRD-ST2CD823J
VRD-ST2CD332J
VRD-ST2CD153J
VRD-ST2CD333J
VRD-ST2CD103J
VRD-ST2CD473J
VRD-ST2CD152J
VRD-ST2CD823J
VRD-ST2CD393J
VRD-ST2CD103J
VRD-ST2CD563J
VRD-ST2CD682J
VRD-ST2CD122J
VRD-ST2CD103J
VRD-ST2CD122J
VRD-ST2CD224J
VRD-ST2EE102J
VRD-ST2CD102J
VRD-ST2CD563J
VRD-ST2CD562J
VRD-ST2CD102J
VRD-ST2CD471J
VRD-ST2CD473J
VRD-ST2CD333J
VRD-ST2CD223J
VRD-ST2EE220J
VRD-ST2CD104J
VRD-ST2CD122J
VRD-ST2CD273J
VRD-ST2CD681J
VRD-ST2CD102J
VRD-ST2CD472J
VRD-ST2CD101J
VRD-ST2CD103J
VRD-ST2EE221J
VRD-ST2CD101J
VRD-ST2CD101J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
DESCRIPTION
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
100 kohm,1/6W
15 kohms,1/6W
2.2 kohms,1/6W
6.8 kohms,1/6W
100 ohm,1/6W
1 kohm,1/6W
12 kohms,1/6W
27 kohms,1/6W
82 kohms,1/6W
3.3 kohms,1/6W
15 kohms,1/6W
33 kohms,1/6W
10 kohm,1/6W
47 kohms,1/6W
1.5 kohms,1/6W
82 kohms,1/6W
39 kohms,1/6W
10 kohm,1/6W
56 kohms,1/6W
6.8 kohms,1/6W
1.2 kohms,1/6W
10 kohm,1/6W
1.2 kohms,1/6W
220 kohms,1/6W
1 kohm,1/4W
1 kohm,1/6W
56 kohms,1/6W
5.6 kohms,1/6W
1 kohm,1/6W
470 ohms,1/6W
47 kohms,1/6W
33 kohms,1/6W
22 kohms,1/6W
22 ohms,1/4W
100 kohm,1/6W
1.2 kohms,1/6W
27 kohms,1/6W
680 ohms,1/6W
1 kohm,1/6W
4.7 kohms,1/6W
100 ohm,1/6W
10 kohm,1/6W
220 ohms,1/4W
100 ohm,1/6W
100 ohm,1/6W
Connector Ass’y,8/8Pin
Connector Ass’y,5/5Pin
Connector Ass’y,6/6Pin
Socket,4Pin
Socket,3Pin
Socket,2Pin
Plug,6Pin
Connector Ass’y,4Pin
Connector Ass’y,3Pin
Connector Ass’y,2Pin
Flat Wire,3Pin
LCD
Motor with Pulley [Tape]
Motor with Chassis [Spindle]
Motor with Gear [Sled]
AC Socket
Speaker,Woofer
Switch,Slide Type
[Record/Playback]
Switch,Slide Type
[Function/Power]
Switch,Push Type [X-BASS]
Switch,Leaf Type [Tape Main]
Switch,Push Type [Pickup In]
Switch,Leaf/Skeleton Type
[CD Lid Open/Close]
Switch,Key Type [Play/Repeat]
Switch,Key Type [Stop]
Switch,Key Type [Track Up/Cue]
Switch,Key Type
[Track Down/Review]
OTHER CIRCUITRY PARTS
!
–2–
BI801/CNS801
BI802/CNS802
BI803/CNS803
CNP101
CNP201
CNP602
CNP803
CNS101
CNS201
CNS602
FW701
LCD701
M601
M701
M702
SO651
SP501,502
SW102
QCNWN0003SJZZ
QCNWN0004SJZZ
QCNWN0005SJZZ
QCNCW001DSJZZ
QCNCW001CSJZZ
QCNCW002BSJZZ
QCNCM932FAFZZ
QCNWN0010SJZZ
QCNWN0001SJZZ
QCNWN0007SJZZ
QCNWN0008SJZZ
RV-LX0001SJZZ
9GD192112343W
RMOTV0408AFM3
RMOTV0409AFM1
QSOCA0001SJZZ
VSP0010PBT98S
QSW-S0001SJZZ
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
AF
AD
AE
AC
AC
AC
AC
SW201
QSW-S0002SJZZ
J
AD
SW203
SW601
SW702
SW761
QSW-P0001SJZZ
9GD6401011499
QSW-F9001AWZZ
QSW-F0001SJZZ
J
J
J
J
AD
AE
AE
AD
SW771
SW772
SW773
SW774
QSW-K0001SJZZ
QSW-K0001SJZZ
QSW-K0001SJZZ
QSW-K0001SJZZ
J
J
J
J
AC
AC
AC
AC
AD
AC
AC
AH
AX
AN
AN
AE
AL
AD
QT-CD111/111C
NO.
PRICE
RANK
PART CODE
DESCRIPTION
NO.
608
CD MECHANISM PARTS
!
301
302
303
304
305
306
701
702
703
704
M701
M702
SW4
NGERH0586AFZZ
NGERH0587AFZZ
MLEVP1054AFZZ
NSFTM0291AFFW
PCUSG0613AFZZ
RCTRH8179AFZZ
XBSSD26P06000
XHBSD20P05000
XBBSD20P03000
LX-WZ1070AFZZ
RMOTV0408AFM3
RMOTV0409AFM1
QSW-F9001AWZZ
PARTS CODE
XBBSD25P06000
PRICE
DESCRIPTION
RANK
J AB Screw,ø2.5×6mm
PACKING PARTS [C Only]
J
J
J
J
J
J
J
J
J
J
J
J
J
AC
AC
AC
AD
AC
BG
AA
AA
AA
AA
AN
AN
AE
Gear,Middle
Gear,Drive
Rail,Guide
Shaft,Guide
Cushion
Pickup Unit Ass’y
Screw,ø2.6×6mm
Screw,ø2×5mm
Screw,ø2×3mm
Washer,ø4.5×ø1.5×0.25mm
Motor with Chassis [Spindle]
Motor with Gear [Sled]
Switch,Push Type [Pickup In]
SPAKA0001SJZZ
SPAKC0002SJZZ
SSAKH0001SJZZ
J
J
J
AK Packing Add.,Left/Right
AK Packing Case
AC Polyethylene Bag,Unit
J
J
J
J
J
J
AP AC Power Supply Cord
AC Operation Manual [U]
AD Operation Manual [C]
Label,Bar Code [C]
AB Label,Bar Code [U]
AB Feature Label
ACCESSORIES
QACCD0006AW00
TINSE0001SJZZ
TINSK0001SJZZ
TLABRF213SJZZ
TLABR0966SJZZ
TLABZ0002SJZZ
!
P.W.B. ASSEMBLY (Not Replacement Item)
CABINET PARTS
201
202
203
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
232- 1
GCABA1001SJM1
GCABC1001SJSA
GCABB1001SJSA
GCABB1003SJSA
NGERH0001SJSA
LHLDZ1001SJZZ
HPNLC1001SJSA
HPNLD1001SJSA
HDECQ0001SJSA
JKNBK0001SJSA
LHLDW1001SJZZ
MSPRC0002SJFD
JHNDP1001SJSA
QANTR0001SJZZ
MSPRZ0001SJFD
GFTAB1001SJSA
JKNBZ0002SJSA
JKNBK0002SJSA
JKNBZ0001SJSA
JKNBK0003SJSA
MSPRD0002SJFD
GFTAC1001SJSA
MSPRD0001SJFD
JBTN-0001SJSA
JBTN-0002SJSA
JBTN-0003SJSA
JBTN-0004SJSA
JBTN-0005SJSA
JBTN-0006SJSA
LANGK0001SJFW
PGUMS0001SJZZ
GFTAT1001SJSA
CHLDM1001SJ01
—————
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
232- 2
233
234
235
236
237
238
239
240
241
241- 1
241- 2
241- 3
241- 4
241- 5
241- 6(M601)
241- 7(SW601)
242
601
602
603
604
605
606
607
PMAGF0002AWZZ
MSPRP0001SJFW
NDRM-0001SJZZ
LHLDZ1002SJZZ
MSPRC0001SJFN
PCUSS0001SJZZ
PRDAR0001SJZZ
LHLDA1001SJZZ
TCAUZ0001SJZZ
DCYOM0001SJ01
9GD192104309
9GD192107039
9GD192109389
9GD62070114
9GD62091010
9GD192112343W
9GD6401011499
TSPC-0002SJZZ
XUBSD30P12000
XUBSD30P20000
XUBSD30P10000
XUBSD25P10000
XWHSD28-08120
XUPSD25P08000
XUBSD30P08000
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
AX Front Cabinet Ass’y
AL Top Cabinet
AM Rear Cabinet [U]
Rear Cabinet [C]
Gear,Damper
AD Bracket,Dial
AF Panel,Control
AD Panel,Dial
AD Cover,Volume
AC Knob,Volume
AD Nylon Band
AC Spring,Battery,+/AE Handle
AG Rod Antenna
AC Spring,Rod Antenna
AD Battery Compartment Lid
AD Knob,Tuning
AC Knob,X-BASS
AD Knob,CD
AC Knob,Function
AC Spring,CD Lid
AE Cassette Lid
AC Spring,Cassette Lid
AC Button,Pause
AC Button,Stop
AC Button,FF
AC Button,REW
AC Button,Play
AC Button,Rec
AC Bracket,Button
AB Cushion
AE CD Lid
AG Stabilizer Ass’y
— Stabilizer
(Not Replacement Item)
AE Magnet
AC Lever,Record
AD Drum
AC Holder,LCD
AC Spring,Battery,AB Cushion
AD Heat Sink
AC Holder
Caution,Battery [C Only]
Tape Mechanism Ass’y
AR Pinch Roller Arm Ass’y
AE Belt,RF
AE Belt,Main
AL Head,Playback/Record
AM Head,Erase
AX Motor with Pulley [Tape]
AE Switch,Leaf Type [Tape Main]
Specification Label [C Only]
AA Screw,ø3×12mm
AA Screw,ø3×20mm
AA Screw,ø3×10mm
AB Screw,ø2.5×10mm
AB Screw,ø2.8×ø12×0.8mm
AB Screw,ø2.5×8mm
AA Screw,ø3×8mm
PWB-A1~3
DCEK-0001SJ03
J
PWB-B
QPWBF3895AFZZ
J
–3–
—
Main/Switch/Terminal
(Combined Ass’y)
AC CD Motor (PWB Only)
QT-CD111/111C
306
701
A
704
304
701
B
302
702
C
301
303
D
703x2
E
M701
F
305
M702
305x2
G
SW702
H
PWB-B
1
2
3
4
Figure 4 CD MECHANISM EXPLODED VIEW
––27
4 ––
5
6
QT-CD111/111C
203
213
601x3
A
215
212
242
240
PWB-A3
B
211
236
602x6
214
601x2
221
231
601
603
603
603x2
C
230x2
202
603
TAPE
MECHANISM
241 (241-1, 241-2
241-3, 241-4, 241-5,
241-6, 241-7)
D
232-2
222
228
227
226
220
204
225
229
CD
MECHANISM
602
606
223
216
SW761
224
603x4
608
607x2
603
603
234
E
205
Silicon
Grease
605x3
604x3
F
232-1
232
201
603x4
PWB-A1
218
238
219
217
603x2
603
235
G
PWB-A2
207
603x5
LCD701
603x4
210
208
209
206
H
NOTE: The parts of cassette mechanism which are supplied are only the unit and consumable parts.
1
2
3
4
Figure 5 CABINET EXPLODED VIEW
––28
5 ––
5
6
QT-CD111/111C
PACKING OF THE SET (FOR QT-CD111 ONLY)
• Setting position of switches and knobs
Tape Mechanism Control
STOP STATE
TUNING
LOW
POWER/FUNCTION
OFF/TAPE
X-BASS
OFF
VOLUME
LOW
AC Power Supply Cord
Polyethylene Bag, Unit
SSAKH0001SJZZ
Packing Case
SPAKC0015SJZZ
Feature Label
FR
ON
T
Operation Manual
FR
ON
T
Packing Add., Left/Right
SPAKA0001SJZZ
Bar Code Label
: Not Replacement Item
––29
6 ––
QT-CD111/111C
—MEMO—
– 30 –
QT-CD111/111C
—MEMO—
– 31 –
QT-CD111/111C
COPYRIGHT
©
1998 BY SHARP COPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP CORPORATION
Communication Systems Group
Quality & Reliability Control Center
Higashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
A9803-2570NS•HA•M
SC • SL
– 32 –