Download SERVICE MANUAL

SERVICE MANUAL MODEL: LX-U250(LXS-U250)
MICRO COMPONENT
SYSTEM
SERVICE MANUAL
MODEL: LX-U250(LXS-U250)
P/N : AFN31625644
SEPTEMBER, 2006
[CONTENTS]
❍ SECTION 1. GENERAL
• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
❍ SECTION 2. ELECTRICAL
• TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
• WAVEFORMS OF MAKOR CHECK POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
• INTERNAL BLOCK DIAGRAM of ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
• SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
• WIRING DIAGRAM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
• PRINTED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
❍ SECTION 3. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
• SINGLE DECK MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
• CD MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
❍ SECTION 4. SPEAKER SECTION
• MODEL: LXS-U250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
❍ SECTION 5. REPLACEMENT PARTS LIST
• REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
- 1-1 -
SECTION 1. GENERAL
❏ SERVICING PRECAUTIONS
• NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
Storage in conductive bag
Drop impact
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
NEVER look directly at the laser beam, and don’t let
contact fingers or other exposed skin.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton
swab should be used, taking care not to distort this.
Pressure
Magnet
Pressure
How to hold the pick-up
Cotton swab
Conductive Sheet
6) Never attempt to disassemble the pick-up.
Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do
not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of
this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
- 1-2 -
• NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components
are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components
can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must be
taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is
because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1M Ω)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
Armband
Resistor
(1 Mohm)
Resistor
(1 Mohm)
Conductive
Sheet
CLEARING MALFUNCTION
You can reset your unit to initial status if malfunction occur(button malfunction, display, etc.).
Using a pointed good conductor(such as driver), simply short the RESET jump wire on the inside of
the volume knob for more than 3 seconds.
If you reset your unit, you must reenter all its settings(stations, clock, timer)
NOTE: 1. To operate the RESET jump wire, pull the volume rotary knob and release it.
2. If you wish to operate the RESET jump wire, it is necessary to unplug the power cord.
VOLUME
UP
RESET jump wire
VOLUME KNOB
DOWN
- 1-3 -
❏ ESD PRECAUTIONS
• Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, which should be removed for potential shock reasons
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are
ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL
OTHER SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion
such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).
• CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO
ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT
MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.
- 1-4 -
❏ SPECIFICATIONS
NOTE : Specification are subject to change without notice in the course of product improvement.
- 1-5 -
- 1-6 -
SECTION 2. ELECTRICAL
❏ TROUBLESHOOTING GUIDE
CD PART
TURN ON CD
OPEN CLOSE CHECK
CONNECTOR CHECK ( PN804, PN806 )
CHECK POWER SUPPLY CIRCUIT( PN806 )
CHECK MICOM INTERFACE CIRCUIT( PN805 )
“ READING ”
DISPLAY CHECK
CONNECTOR CHECK ( PN802, PN804, PN806 )
CHECK MICOM INTERFACE CIRCUIT( PN805 )
READING OK CHECK
CONNECTOR CHECK(PN801,PN802)
CHECK PICKUP MOVEMENT
CHECK AM5810FP (IC802)
CHECK LC78690W (IC801)
IF PLAY, AUDIO
OUTPUT CHECK
CONNECTOR CHECK (PN806)
OK
- 2-1 -
OPEN CLOSE NG
CONNECTOR LOCKING CHECK ( PN804 )
CHECK POWER SUPPLY CIRCUIT( PN805, PN806)
PN 806 PIN 4 = 12V, PIN 5 = 6.2V
PN805 PIN 1 = 5V
DEFECTIVE MAIN
POEWR SUPPLY
DEFECTIVE MICOM
CHECK VOLTAGE CHANGE OF OPEN CLOSE ,
AND IC802 INPUT VOLTAGE PIN 7, 8, 20 (=6.2V)
(PN805 PIN 2:BTL_MUTE, 14:OPEN 15:CLOSE)
DEFECTIVE
MECHANISM
- 2-2 -
“ READING ” DISPLAY CHECK
(= ONLY “CD “DISPLAY)
CONNECTOR LOCKING CHECK (PN802,
PN804,PN805,PN806 )
CHECK POWER SUPPLY
PORT( PN805 ,PN806)
PN 806 PIN 4 = 12V, PIN 5 = 6.2V
PN805 PIN 12 = 5V
DEFECTIVE CONNECTOR OR
MAIN POWER SUPPLAY
CHECK VOLTAGE THE PIN 2 OF IC804
IC804 PIN 2 : 3.3V
DEFECTIVE IC804
CHECK RESET SIGNAL OF PN805
PN805 PIN 4 : 3V
DEFECTIVE MICOM OR
CONNECTOR
CHECK MICOM INTERFACE
CIRCUIT( PN805 )
PN805 PIN 3,4,5,6,7,8,9 SIGNAL CHECK
(3: WRQ, 4 : RESET 5 : DO, 6: DI, 7 : CL
8: CE, 9: FSEQ)
CHECK THE WAVE FORM #1
DEFECTIVE MICOM OR
CONNECTOR
DEFECTIVE IC801
- 2-3 -
READING OK CHECK
(= “NO DISC” DISPLAY)
CONNECTOR LOCKING
CHECK(PN801,PN802)
DOES SLED MOVE ?
A
CHECK PN802 PIN 3,4( SL+,SL-)
DEFECTIVE PICKUP OR
IC802 OR IC801
DOES LENSE MOVE ?
(= UP & DOWN)
B
CHECK PN801 PIN 13,16( FA-, FA+)
DEFECTIVE PICKUP OR
IC802 OR IC801
DOES LASER LIGHT ?
C
CHECK PN801 PIN 10( LD )
DEFECTIVE PICKUP OR
IC801
DOES SPINDLE ROTATE ?
D
CHECK PN802 PIN
5,6( SP+,SP-)
DEFECTIVE PICKUP OR
IC802 OR IC801
IS READING OK ?
E
CHECK PN801 PIN 14,15
(TA-, TA+)
- 2-4 -
DEFECTIVE PICKUP OR
IC802OR IC801
READING OK CHECK #A
(= “NO DISC” DISPLAY)
A
DOES SL+ WAVEFORM APPEAR
AT
( IC802 PIN 13 AND PN 802 PIN 3)
WAVEFORM #2
SLED MOTOR WAVE
DOES SLIN WAVEFORM
APPEAR AT
( IC802 PIN 5)
WAVEFORM #2
SLED DRIVE WAVE
DEFECTIVE IC801
DEFECTIVE IC802
DEFECTIVE PN802
CONNECTOR
CHECK PN802 CONNECTOR LINE
DEFECTIVE PICKUP
SLED MOTOR
- 2-5 -
READING OK CHECK #B
(= “NO DISC” DISPLAY)
B
DOES FA+ WAVEFORM APPEAR AT
( IC802 PIN 16 AND PN801 PIN 13)
WAVEFORM #3
FOCUS COIL DRIVE WAVE
DOES FAIN- WAVEFORM
APPEAR AT
( IC802 PIN 25)
WAVEFORM #3
FOCUS DRIVE WAVE
DEFECTIVE IC801
DEFECTIVE IC802
DEFECTIVE PN801
CONNECTOR
CHECK PN801 CONNECTOR LINE
DEFECTIVE PICKUP
FOCUS ACTUATOR
- 2-6 -
READING OK CHECK #C
(= “NO DISC” DISPLAY)
C
IS ?V APPLIED TO PIN10 OF
PN501
LASER SUPPLY VOLTAGE CHECK
IS 3.3 V APPLIED TO
PIN30,36,39,41,61,68,75
OF IC801
RF IC SUPPLY VOLTAGE
CHECK
DEFECTIVE IC804
IS 2.3 V PIN18 OF IC801
LASER CONTROL
VOLTAGE CHECK
DEFECTIVE IC801
DEFECTIVE Q801 OR
D801
DEFECTIVE PN801
CONNECTOR
CHECK PN801 CONNECTOR LINE
DEFECTIVE PICKUP
LASER PART
- 2-7 -
READING OK CHECK #D
(= “NO DISC” DISPLAY)
D
DOES SP+ WAVEFORM APPEAR
AT
( IC802 PIN 11 AND PN802 PIN 5)
WAVEFORM #4
SPINDLE MOTOR DRIVE WAVE
DOES SPIN WAVEFORM
APPEAR AT
( IC802 PIN 6)
WAVEFORM #4
SPINDLE DRIVE WAVE
DEFECTIVE IC801
DEFECTIVE IC802
DEFECTIVE PN802
CONNECTOR
CHECK PN802 CONNECTOR LINE
DEFECTIVE PICKUP
SPINDLE MOTOR
- 2-8 -
READING OK CHECK #E
(= “NO DISC” DISPLAY)
E
DOES TA+ WAVEFORM APPEAR AT
( IC802 PIN 17 AND PN801 PIN 14)
WAVEFORM #5
TRACKING COIL DRIVE WAVE
DOES TAIN- WAVEFORM
APPEAR AT
( IC802 PIN 22)
WAVEFORM #5
TRACKING DRIVE WAVE
DEFECTIVE IC801
DEFECTIVE IC802
CHECK PN802 CONNECTOR LINE
DEFECTIVE PN802
CONNECTOR
DOES ARF SIGNAL APPEAR?
(IC801 PIN 2 )
WAVEFORM #6
DEFECTIVE PICKUP OR
IC801
DOES FE, TE SIGNAL APPEAR?
(IC801 PORT FE:10, TE:16)
WAVEFORM #6
DEFECTIVE PICKUP OR
IC801
- 2-9 -
❏ WAVEFORMS OF MAKOR CHECK POINT
#1. MICOM INTERFACE WAVEFORM
#1. MICOM INTERFACE WAVEFORM
(PN805 PIN 3, 4, 5, 6) during power on
(PN805 PIN 3, 4, 5, 6) during normal play
PIN 3 : WRQ
PIN 3 : WRQ
PIN 4 : RESET
PIN 4 : RESET
PIN 5 : DO
PIN 5 : DO
PIN 6 : DI
PIN 6 : DI
#1. MICOM INTERFACE WAVEFORM
#1. MICOM INTERFACE WAVEFORM
(PN805 PIN 7, 8, 9) during power on
(PN805 PIN 7, 8, 9) during normal play
PIN 7 : CL
PIN 7 : CL
PIN 8 : CE
PIN 8 : CE
PIN 9 : FSEQ
PIN 9 : FSEQ
- 2-10 -
#2. SLED DRIVE AND MOTOR WAVEFORM
#2. SLED DRIVE AND MOTOR WAVEFORM
(IC802 PIN 5, 13) when focus search
(IC802 PIN 5, 13) during normal play
PIN 5 : SLIN
PIN 5 : SLIN
PIN 13 : SL+
PIN 13 : SL+
#3. FOCUS DRIVE AND MOTOR WAVEFORM
(IC802 PIN 25, IC802 PIN 16)
When focus search failed or there is no disc on tray
#3. FOCUS DRIVE AND MOTOR WAVEFORM
(IC802 PIN 25, IC802 PIN 16)
There is disc on tray and focus search success
PIN 25 : FAO
PIN 25 : FAO
PIN 16 : FA+
PIN 16 : FA+
- 2-11 -
#4. SPINDLE DRIVE AND MOTOR WAVEFORM
#5. TRACK DRIVE AND MOTOR WAVEFORM
(IC802 PIN 6, 11) when TOC reading
(IC802 PIN 22 , IC802 PIN 17) during normal play
PIN 22 : TAO
PIN 11 : SP+
PIN 6 : SPIN
PIN 17 : TA+
#6. RF, FOCUS AND TRACKING ERROR WAVEFORM
(IC801 PIN 2, 10, 16) during normal play
PIN 2 : RFOUT
PIN 16 : TE
PIN 10 : FE
- 2-12 -
USB PART
TURN ON USB
“CHECKING ”OR
“USB” DISPLAY
CHECK
CONNECTOR CHECK ( PN805, PN806, PN810 )
CHECK POWER SUPPLY CIRCUIT( PN806 )
CHECK MICOM INTERFACE CIRCUIT( PN805 )
READING OK CHECK
CHECK PN810 1 PIN : 5V
CHECK PN810 PIN 2(D-), 3(D+)
CHECK OTI6888 (IC805)
IF PLAY, AUDIO
OUTPUT CHECK
CHECK LC78690W (IC801)
CONNECTOR CHECK (PN806)
OK
- 2-13 -
P-SENS CHECK
ZD900 (+)VOLTAGE CHECK (5V)
YES
NO
D912(+)WAVE CHECK
YES
D912 CHANGE
IC301 26PIN PATTERN CHECK
VKK CHECK
PN301 3Pin DC -27V CHECK
YES
NO
ZD901 (-)-27V CHECK
NO
YES
OK
C921(-)-27V UNDER VOLT CHECK
Q900 TURN ON CHECK
YES
Q900 CHANGE
D907,D906 CHANGE
YES
NO
VOLTAGE CHECK LIST
OK
- 2-14 -
NO
VOLTAGE CHECK
ALL Fuse CHECK
NO
YES
FUSE CHANGE
C904(+),C905(-)DC VOLT OUTPUT CHECK
NO
YES
CN900 (-)1,2 PIN,(+)5,6 PIN OUTPUT VOLTAGE,D900 CHECK
IC901,IC902 INPUT DC VOLT CHECK
YES
NO
TransformerCHANGE
D700 CHANGE
NO
YES
CN901 7 Pin DC VOLTOUTPUT CHECK
IC903 Output DC VOLT CHECK (6.2V)
YES
NO
Transformer CHANGE
D901,D902,D903,D904 COMPONENT CHECK AND CHANGE
NO
YES
D909,D910 VOLT CHECK
IC903 Output DC VOLT CHECK (6.2V)
YES
NO
IC901 CHANGE
D908 +12V CHECK AND CHANGE
YES
NO
SECTION CHECK
NO
IC904 1PIN (+)High CHECK
YES
YES
MUTE
NO
Q500 CHECK AND CHANGE
IC904 CHANGE
Muting CIRCUIT Troubleshooting (MUTE CONDITION)
Q201,Q251,Q600,Q650 Base "High"
NO
IC201Troubleshooting CHECK (ONLY Q201/Q251)
YES
NO
Q504 EMITTER "HIGH"(ONLY Q714/Q715)
YES
Q201,Q251,Q600,Q650 Collector "Low"
YES
Q504 CHANGE
NO
TR CHANGE
MUTE
- 2-15 -
NO
IC301 Troubleshooting CHECK
NO SOUND
IC905 17,22 PIN OUTPUT CHECK
NO
IC905 Troubleshooting VIEW
YES
IC905 INPUT CHECK(FUNK BLOCK INPUT CHECK)
NO
Muting troubleshooting VIEW
YES
POWER CIRCUIT CHECK
RY700 CONTROL CHECK
NO
SPK Relay troubleshooting VIEW
YES
OK
SPK Relay Troubleshooting (ONLY LX-W550`s)
D503 (+)12V CHECK
NO
VOLTAGE CHECK LIST
YES
Q511 Collector "Low"CHECK
NO
Q511 Base "High"
YES
NO
YES
Q511 CHANGE
OUTPUT SOUND CHECK
NO
YES
RELAY CHANGE (RY700)
OK
- 2-16 -
IC204 Troubleshooting
FUNCTION MODE (NO SOUND)
TAPE
YES
IC905 3,36PIN INPUT SIGNAL CHECK
YES
IC204 Troubleshooting
AUX
YES
IC905 5,34 PIN INPUT SIGNAL CHECK
YES
JK600 INPUT CHECK
CD
YES
IC905 4,35 PIN INPUT SIGNAL CHECK
YES
CD Troubleshooting
TUNER
YES
IC905 2,37 PIN INPUT SIGNAL CHECK
YES
IC102 Troubleshooting
DAB/L BAND/DAB+L
YES
IC905 6,33 PIN INPUT SIGNAL CHECK
YES
IC102 Troubleshooting
- 2-17 -
IC301 Troubleshooting
IC301 17,46,72,90 INUT VOLT.CHECK
YES
NO
VOLTAGE CHECK LIST
IC301 26Pin 5V INPUT CHECK
YES
NO
P-SENS SECTION CHECK
X301 CHECK
YES
NO
X301 CHANGE
IC301 17Pin VOLT INPUT (Low ➝ High)
YES
NO
RESET SECTION CHECK
YES
OK
IC301 CHANGE
IC204 Troubleshooting
IC204 16Pin INUT VOLT.CHECK
YES
NO
VOLTAGE CHECK LIST
IC204 2,3 Pin CLK Data CHECK
YES
NO
IC301 3,4Pin Data CHECK (CD,TAPE FUNCTION MODE)
YES
CONTROLL FUNC.CHECK
IC301,IC204 pattern check
YES
NO
IC204 CHANGE
OK
- 2-18 -
NO
IC301 TROUBLE SHOOTING
IC905 Troubleshooting
FUNC CLOCK DATA 19,20PIN CHECK
YES
21 PIN VOLT CHECK
YES
NO
VOLTAGE CHECK LIST
EACH FUNC MODE (INPUT SIGNAL CHECK)
YES
NO
FUNC Troubleshooting
EACH FUNC MODE (INPUT SIGNAL CHECK)
YES
NO
SPK Relay SECTION CHECK
17,22 Pin OUTPUT SIGNAL CHECK
FM(TUN600)CHECK
TUN600 2PIN 9V CHECK
YES
NO
VOLTAGE CHECK LIST
TUN600 7,8,9PIN CLOCK DATA CHECK
YES
NO
IC301 7,8,9 PIN CLOCK DATA CHECK
YES
TUN600 3,5PIN OUTPUT CHECK
IC301 Troubleshooting
YES
NO
TUN600 CHANGE
OK
- 2-19 -
PLAY MODE CHECK
IC201 46Pin VCC CHECK
YES
NO
VOLTAGE CHECK LIST
IC201 3,6 Pin Signal Output CHECK
YES
NO
Deck Mecha MOVE CHECK
YES
NO
Deck Mecha CHANGE
Muting SECTION CHECK
IC201 CHANGE
REC CHECK (Q202,Q252 ON:R220,270 HIGH)
IC203 2,8Pin INPUT SIGNAL CHECK
YES
NO
Q202,Q252 Base "Low"CHECK
YES
NO
IC203 Troubleshooting
IC203 3,7 Pin OUT
Q202,Q252 CHANGE
YES
NO
IC203 6Pin VCC volt check
IC202 6(12V),4 Pin High check
YES
NO
Power Check,IC202 Troubleshooting
L201 2,3PIN check
YES
NO
C227(+)INPUT VOLT CHECK
YES
NO
VOLTAGE CHECK LIST
DECK CHANGE
Q205 Base 0.6V CHECK
YES
NO
IC203 Troubleshooting
Q205 Collector Low
YES
NO
Q205 CHANGE
Q204 CHANGE
YES
OK
- 2-20 -
NO
L201 CHANGE
DAB/DAB+L /L BAND(DAB600,DAB600L)CHECK
(ONLY DAB series MODEL)
DAB600,DAB600L 4PIN 3.3V INPUT CHECK
YES
NO
VOLTAGE CHECK LIST
DAB600,DAB600L 11,13PIN PIN CLOCK DATA CHECK
YES
NO
IC301 75,76 PIN CLOCK DATA CHECK
YES
DAB600,DAB600L 6,8PIN OUTPUT CHECK
YES
IC301 Troubleshooting
NO
DAB600,DAB600L CHANGE
OK
- 2-21 -
❏ INTERNAL BLOCK DIAGRAM of ICs
• NJW1190
BLOCK DIAGRAM
- 2-22 -
PIN FUNCTION (SSOP44)
- 2-23 -
PIN FUNCTION (QFP48-P1)
- 2-24 -
• IC805
BLOCK DIAGRAM
14.318MHz
PLL
Clock Divider
D+
RISC
Input
Button
USB
Transceirver
UHC
Interrupt
Program
D-
USB
device
DAC
I2V
MP3
decoder
Bit Stream
RAM
LED
LED1~2
• PIN CONFIGUARTION
GPIOB [3 ]
ext_int5
GPIOB [1 ]
gnd
DMNS_IO
DPLS_IO
vdd
NC
SID
REQ
SIC
NC
48
47
46
45
44
43
42
41
40
39
38
37
7
30
vdd
vdd
8
29
xtal2
LED1_out
9
28
xtal1
NC
10
27
gnd
GPIOA [5 ]
11
26
reset_b
GPIOA [4 ]
12
25
NC
NC
gnd
vdd
NC
GPIOA [0 ]
NC
GPIOA [1 ]
NC
NC
GPIOA [2 ]
NC
GPIOA [3 ]
- 2-25 -
24
31
NC
gnd
23
6
22
32
scl
NC
21
5
20
33
sda
NC
19
4
18
34
GPIOB [0 ]
NC
17
3
16
35
NC
NC
15
36
GPIOB [2 ]
2
14
1
GPIOA [6 ]
13
GPIOA [7 ]
PIN CONFIGUARTION
DPLS_IO
vdd
SID
REQ
58
57
56
55
54
53
49
DMNS_IO
59
txd1
gnd
60
50
GPIOB [1 ]
61
ex_romdata [7 ]
host_dev_sel
62
51
gnd
63
52
ex_romaddr [15 ]
64
SIC
ex_romaddr [14 ]
ex_romdata [6 ]
ex_romaddr [13 ]
42
xtal2
GPIOA [5 ]
8
41
xtal1
GPIOA [4 ]
9
40
gnd
ex_romaddr [12 ]
10
39
reset_b
ex_romaddr [11 ]
11
38
mode0
ex_romaddr [10 ]
12
37
ex_romdata [0 ]
ex_romaddr [9 ]
13
36
ex_romdata [1 ]
gnd
14
35
ex_romaddr [2 ]
vdd
15
34
ex_romaddr [3 ]
ex_romaddr [8 ]
16
33
rxdi1
32
7
31
43
vdd
LED1_out
30
6
29
44
scl
vdd
28
45
sda
5
27
4
gnd
26
GPIOA [6 ]
25
46
gnd
24
3
23
GPIOA [7 ]
22
47
ex_romaddr [1 ]
21
2
20
ex_romdata [6 ]
19
48
ex_romaddr [0 ]
18
1
17
ex_romdata [5 ]
ex_romdata [3 ]
ex_romdata [2 ]
GPIOB [6 ]
GPIOB [4 ]
GPIOA [3 ]
GPIOA [2 ]
gnd
vdd
GPIOA [1 ]
GPIOA [0 ]
ex_romaddr [7 ]
gnd
vdd
ex_romaddr [6 ]
ex_romaddr [5 ]
ex_romaddr [4 ]
- 2-26 -
• AM5810 (IC802)
BLOCK DIAGRAM
PIN CONFIGURATION
- 2-27 -
PIN DESCRIPTION
- 2-28 -
❏ BLOCK DIAGRAM
2-29
2-30
• WMA/USB BLOCK DIAGRAM
2-31
2-32
❏ SCHEMATIC DIAGRAMS
• MAIN SCHEMATIC DIAGRAM
2-33
2-34
• FRONT SCHEMATIC DIAGRAM
2-35
2-36
• POWER SCHEMATIC DIAGRAM
2-37
2-38
• DECK SCHEMATIC DIAGRAM
2-39
2-40
• CD SCHEMATIC DIAGRAM
2-41
2-42
• USB SCHEMATIC DIAGRAM
2-43
2-44
❏ WIRING DIAGRAM
2-45
2-46
❏ PRINTED CIRCUIT DIAGRAMS
• MAIN P.C. BOARD
2-47
2-48
• FRONT P.C. BOARD
2-49
2-50
• CDP P.C. BOARD (COMPONENT SIDE)
2-51
2-52
• CDP P.C. BOARD (SOLDER SIDE)
2-53
2-54
• LINEAR POWER
2-55
2-56
SECTION 3. EXPLODED VIEWS
❏ CABINET AND MAIN FRAME SECTION
250
263
252
A46
450
301
254
253
A26
258
A00
260
A47
A43
A41
305
262
450
256
261
255
257
259
3-1
3-2
• SINGLE DECK MECHANISM
A00
037
013
010
039
036
028
505
005
504
008
026
403
020
035
501
038
034
033
002
504
019
503
007
023
404
030
018
031
006
003
032
503
017
024
025
029
502
027
001
009
016
012
011
015
401
014
004
402
3-3
3-4
LOCA. NO.
A00
001
002
003
004
005
006
007
LG PART NO.
6720AF0007A
6768RZAA04A
6768RZBA04A
6768RZBA05A
6768RZEA01A
6768RZGA03A
6768RZGA04A
6768RZJA03A
DESCRIPTION
Audio Deck
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
SPECIFICATION
CMAL1Z2 CMAL1Z2 L-SINGLE A_RVS
FD58P- ALPS ARM PLAY
FF19U-31 ALPS BELT/FELT A/R A/
FF19S-31 ALPS BELT/FELT A/R
F513-927 ALPS HEAD ASSY A/R
F522-063 ALPS GEAR A/R A/S
FD58M- ALPS GEAR CAM
FR26D- ALPS PULLEY/FLYWHEEL AS
008
009
010
011
012
013
014
015
016
017
018
019
020
023
024
025
026
027
028
029
030
031
032
033
034
035
036
037
038
039
401
402
403
404
501
502
503
504
505
6768RZJA04A
6768RZMA02A
6768RZQA03A
6768RZRA01A
6768RZRA02A
6768RZXA02A
6768RZPA03A
6768RZPA02A
6768RZSA01A
6768RZPA04A
6768RZSA04A
6768RZSA02A
6768RZAA05A
6768RZMA04A
6768RZSA05A
6768RZMA03A
6768RZSA03A
6768RZPA05A
6768RZGA05A
6768RZSA06A
6768RZMA05A
6768RZVA01A
6768RZVA02A
6768RZPA07A
6768RZSA07A
6768RZPA06A
6768RZGA06A
6768RZMA06A
6768RZSA08A
6768RZJA06A
6768RZCA01A
6768RZCA02A
6768RZCA03A
6768RZCA04A
6768RZWA01A
6768RZWA02A
6768RZWA03A
6768RZWA04A
6768RZWA05A
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
Deck Mechanism Parts
FR25M- ALPS PULLEY/FLYWHEEL AS
FD53M- ALPS MOLD REEL
F525-381 ALPS MOTOR(ASSY) A/R
F514-133 ALPS ROLLER A/R
F514-134 ALPS ROLLER A/R
F567-726 ALPS SPECIAL A/R
F512-128 ALPS PRESS PLATE BASE
F512-127 ALPS PRESS PLATE BASE
FK32T- ALPS SPRING HB
FC61K- ALPS PRESS HEAD BASE
FK32U- ALPS SPRING REEL L
FK32N- ALPS SPRING INTERLOCK L
FC61P- AKPS ARM INTERLOCK L
FD52W- ALPS MOLD REEL BASE RVS
FK32V- ALPS SPRING REEL R
FD52W- ALPS MOLD REEL BASE
FK34Y- ALPS SPRING B/C
F612-234 ALPS PRESS CHASSIS BA
FD53K- ALPS GEAR PLAY(A)
FK35F- ALPS SPRING ARM PLAY
FD59F- ALPS MOLD BUSH
F765-303 ALPS SOLENOID BLK
FL41S- ALPS SOLENOID PLUNGER
FC65W- ALPS PRESS LEVER F/R
FK35K- ALPS SPRING CAM
FC61L- ALPS PRESS PLATE SLIDE
FD60L- ALPS GEAR FF(E)
FD58T- ALPS MOLD LEVER BRAKE
FK35E- ALPS SPRING ARM F/R
FD60B- ALPS PULLEY/FLYWHEEL AS
KG194E36A ALPS SCREW 2.0X6
KG194E34A ALPS SCREW 2.0X4
KG194E28 ALPS SCREW 2.6X4
FG114E14A ALPS SCREW 2.6X5
FC67N- ALPS WASHER BRACKET DEC
UJ16F- ALPS WASHER 1.75X0.4
FJ111-35 ALPS WASHER 4.1X0.25
FJ111-30 ALPS WASHER 2.6X0.25
FJ111-17 ALPS WASHER 1.7X0.25
• CD MECHANISM
001
429
002
A01
429
004
A26
003
026
430
430
012
012
430
012
430
A03
012
013
018
014
020
017
015
A02
011
431
430
3-5
3-6
SECTION 4. SPEAKER SECTION
❏ MODEL: LXS-U250
854
A80
855
857
850
856
852
861
853
860
851
- 4-1 -
- 4-2 -