Download Zenith ZH-T202SF Series Service manual

SERVICE MANUAL
SERVICE MANUAL
MODEL : ZH-T202SF
Product Type: DVD HOME THEATER SYSTEM
Chassis: DP10-T
Manual Series: ZH-T202SF
Manual Part #: AFN32633706
Model Line: C
Product Year: 2007
CONTENTS
GENERAL .................................................. 1
AUDIO PART .............................................. 2
DVD & AMP PART...................................... 3
EXPLODED VIEWS ................................... 4
SPEAKER PART ........................................ 5
REPLACEMENT PARTS LIST ................... 6
Published January 2007
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright © 2007 by Zenith Electronics Corporation
Printed in CANADA
Model Series:
ZH-T202SF
[CONTENTS]
❍ SECTION 1. GENERAL
• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
• SERVICE INFORMATION FOR EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
❍ SECTION 2. AUDIO PART
• AUDIO TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
• CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
• PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
❍ SECTION 3. DVD & AMP PART
• ELECTRICAL TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
• DVD & AMP CIRCUIT DIAGRAMS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
❍ SECTION 4. EXPLODED VIEWS
❍ SECTION 5. SPEAKER PART
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
❍ SECTION 6. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
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 allow
contact with 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 lens.
Pressure
Magnet
Pressure
How to hold the pick-up
Cotton swab
Conductive Sheet
6) Never attempt to disassemble the pick-up.
Spring has 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 or 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
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
SERVICE INFORMATION FOR EEPROM (DVD PART)
POWER ON
DVD LOGO Status (NO Disk status)
DETECT NEW EEPROM
(OPTION EDIT SCREEN)
NAME
Remote control
Pause key-->1-->4-->7-->2 in order.
Press number 0~9, Press charater
A~F (1~6 for a while)
Use arrow key (
) to
move to appropriate position and
make changes
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
OPT
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
Press pause key once
Change will be applied when power
OFF-->ON.
1-5
HEX
43
41
60
67
12
05
74
31
08
00
00
00
00
00
00
00
SERVICE INFORMATION FOR EEPROM (AMP PART)
POWER ON
FLD no disc status
Remote control ‘2’ + Front ‘STOP’
push same timing during 5s
FLD ‘OP-0….
DETECT NEW EEPROM
(OPTION EDIT SCREEN)
NAME
OPT 1
OPT 2
OPT 3
OPT 4
OPT 5
Use arrow key (
) move
to appropriate position and make
changes
Press ENTER key once
FLD ‘write ok’ or ‘up ok’
Remote control ‘2’ + Front ‘STOP’
push same timing
FLD display E2P CLR or EP CLR
Auto power off
1-6
HEX
66
40
03
00
00
SPECIFICATIONS
GENERAL
Power supply
Power consumption
Net Weight
External dimensions (W x H x D)
Operating conditions
Operating humidity
Refer to main label
Refer to main label
2.4 kg
360 x 63 x 307 mm
Temperature: 5°C to 35°C, Operation status: Horizontal
5% to 85%
CD/DVD
Laser
Signal system
Frequency response (audio)
Signal-to-noise ratio (audio)
Dynamic range (audio)
Harmonic distortion (audio)
Semiconductor laser, wavelength 650 nm
NTSC 525/60
160 Hz to 18 kHz
More than 75 dB (1 kHz, NOP -6 dB, 20 kHz LPF/A-Filter)
More than 70 dB
0.5 % (1 kHz, at 1W position) (20 kHz LPF)
VIDEO
Video output
COMPONENT VIDEO OUT
TUNER
FM
Tuning Range
Intermediate Frequency
Signal-to Noise Ratio
Frequency Response
AM [MW]
Tuning Range
Intermediate Frequency
1.0 V (p-p), 75 Ω, negative sync. RCA jack x 1
(Y) 1.0 V (p-p), 75 ohms, negative sync, RCA jack x 1
(Pb)/(Pr) 0.7 V (p-p), 75 ohms, RCA jack x 1
87.5 - 108.0 MHz or 65.0 - 74.0 MHz, 87.5 - 108.0 MHz
10.7 MHz
60 dB (Mono)
160 - 10,000 Hz
522 - 1,620 kHz or 520 - 1,720 kHz
450 kHz
AMPLIFIER
Stereo mode
Surround mode
(* Depending on the sound mode
settings and the source, there may
be no sound output.)
Inputs
30W + 30W (Rated Output Power 20W, 4 Ωat 1 kHz, THD 10 %)
Front: 30W + 30W (Rated Output Power 20W, THD 10 %)
Center*: 30W
Surround*: 30W + 30W (Rated Output Power 20W, 4 Ωat 1 kHz, THD 10 %)
Subwoofer*: 50W (Rated Output Power 40W, 8 Ωat 30 Hz, THD 10 %)
AUX IN
SPEAKERS
Type
Impedance
Frequency Response
Sound Pressure Level
Rated Input Power
Max. Input Power
Net Dimensions (W x H x D)
Net Weight
Front/Rear/ CenterSpeaker
(SH22SF-SY)
1 Way1 Speaker
4Ω
160 - 20,000 Hz
83 dB/W (1m)
30 W
60 W
94 x 102 x 88 mm
0.35kg
1-7
Passive Subwoofer
(SH22SF-WY)
1 Way 1 Speaker
8Ω
65 - 1,500 Hz
84 dB/W (1m)
50 W
100 W
144 x 250 x 230 mm
2.81kg
SECTION 2. AUDIO PART
AUDIO TROUBLESHOOTING GUIDE
1. Power Supply Circuit
Insert power cord.
Yes
Does red power led
turn on?
No
Check power plug and power
supply circuit.
Yes
Turn power on.
No
Check power supply circuit.
Is power on?
Yes
Does red power led
turn on?
No
Check laser circuit.
Check focus circuit.
Yes
Check disc.
No
Check tracking servo circuit.
Does it play?
Yes
Does it output
audio?
No
Check audio circuit.
Yes
OK
2-1
2. Front circuit (1/2)
Power on.
No
Check if
PN1301 is ok?
Red LED turn off?
Yes
Is the Digitron on
correctly?
No
Reconnect it.(Refer to notice *1)
Yes
No
Check if the front
power is ok?(*2)
Yes
No
Refer to SMPS part.
Yes
Check if all
buttons are ok?
1
Yes
Check if the remote
control is ok?
No
2
Check if
RM301 is ok?
Yes
Front B/D ok.
2-2
Check pattern and resoldering
3. Front circuit (2/2)
1
Check if the
power part of the
front is ok?
No
Refer to power(SMPS).
Yes
Check if
R345~R350
ok?
No
Yes
Refer to
MICOM circuit.
Replace R345 ~ R350.
2
Check if the power
part of the front is ok?
No
Refer to power(SMPS).
Yes
Check if the remote
control waveform of PN3101
pin11 is ok?
Yes
Refer to MICOM circuit.
No
Check if RM301
voltage is ok(5V)?
No
Yes
Resolder or
Replace RM301.
Check RM circuit
2-3
WIRING DIAGRAM
061026
2-4
2-5
BLOCK DIAGRAM
061026
2-6
2-7
CIRCUIT DIAGRAMS
IMPORTANT SAFETY NOTICE
1. SMPS(POWER) CIRCUIT DIAGRAM
NOTE)
NOTE)
NOTE)
NOTE)
WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE ZENITH. ALL COMPONENTS SHOULD
BE REPLACED ONLY WITH TYPES IDENTICAL TO
THOSE IN THE ORIGINAL CIR- CUIT.
SPECIAL COMPONENTS ARE SHADED ON THE
NOTE :
SCHEMATIC FOR EASY IDENTIFICATION.
1. Shaded( ) parts are critical for safety. Replace only
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFwith specified part number.
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
2. Voltages are DC-measured with a digital voltmeter
IMPLEMENTATION OF THE LATEST SAFETY AND
during Play mode.
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
LITERATURE IS PRINTED.
Warning
Parts that are shaded are critical
With respect to risk of fire or
electricial shock.
NOTES)
Symbol denotes AC ground.
NOTES)
Symbol denotes DC chassis ground.
061026
2-8
2-9
2. µ-COM(MAIN) CIRCUIT DIAGRAM
061026
2-10
2-11
3. MOTOR & SERVO CIRCUIT DIAGRAM
061026
2-12
2-13
4. I/O CIRCUIT DIAGRAM
061026
2-14
2-15
5. MIC CIRCUIT DIAGRAM
061026
2-16
2-17
6. FRONT JACK CIRCUIT DIAGRAM
070102
2-18
2-19
7. FRONT CIRCUIT DIAGRAM
061026
2-20
2-21
PRINTED CIRCUIT BOARD DIAGRAMS
1. MAIN P.C. BOARD DIAGRAM ( TOP VIEW )
2-22
2-23
2. MAIN P.C. BOARD DIAGRAM ( BOTTOM VIEW )
2-24
2-25
3. SMPS P.C. BOARD
NOTE: Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.
2-26
2-27
4. FRONT JACK P.C BOARD
5. FRONT P.C.BOARD
2-28
2-29
SECTION 3. DVD & AMP PART
ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
POWER ON.
1. Initializes SERVO, DSP & RISC registers.
2. Write RISC code to SDRAM.
3. Reset RISC.
Show LOGO.
Yes
Tray closed?
No
Tray close to closed position.
SLED at inner
side?
Yes
No
SLED moves to inner position.
1. Judge whether have disc and disc type.
2. Jump to related disc reading procedure.
Recieve
OPEN/ CLOSE
Key?
No
1. Execute Pressed Key & IR Key.
2. System operation routine loop.
1. Stop Playback & Open Tray.
2. Display tray open message & LOGO.
No
Receive
CLOSE Key?
Yes
3-1
2. Test & debug flow
TEST.
Check the
AC voltage
Power PCBA (110V
or 220V).
No
Check the POWER PART.
Yes
Switch on the Power PCBA.
Are the
DC Voltage
outputs OK? (12V, 5.6V,
3.5V, 5V,7V, 34V).
No
Check the POWER PART.
Yes
Are 3.5V and 5V DC
outputs normal on main
PCBA?
No
Check the regulators or diode.
Yes
Update
FLASH
successfully?
No
1. Check
2. Check
3. Check
4. Check
27MHz system clock.
system reset circuit.
FLASH R/W enable signal PRD, RWR.
FLASH Memory related circuit.
Yes
Replace FLASH.
A
3-2
A
Power On.
Show LOGO?
Flash
Memory operates
properly?
Check connection lines between FLASH &
ES8380 and the FLASH access time whether
is suitable or not.
Check connection lines between
SDRAM(IC502) & ES8380 and the SDRAM is
damaged.
SDRAM
works properly?
ES8380
VIDEO outputs
properly?
Check the related circuit of ES8380
IC501 Pins133, 134, 137, 138, 139, 140.
Check AV cable
connection to TV set.
Does
Tray move inside
when it is not at
closed position?
B
Normal
OPEN_SW,
CLOSE_SW
signal?
Check the load OPEN & CLOSE switch.
Normal
IN_SW & OUT_SW
signal?
Check the Tray control IO pins on ES8380.
Normal
LOAD+ & LOADsignal?
Check the Tray control MOTOR & SERVO
circuit IC401.
Check AV cable connection between
main PCBA and loader. (MECHA)
3-3
B
Does the SLED
move to inner side when it is
at outer position?
No
Motor
Driver DRV_MUTE
pin is high?
No
Check the connection line of
DRV_MUTE.
Yes
Yes
Motor
Driver DRV_MUTE
pin is High?
No
Check the related circuit of SLEGN.
Yes
SLED+ and
SLED- output
properly?
No
Check the amp circuit on motor driver.
Yes
Do not put in disc and close
tray.
Optical Lens
has movements for
searching Focus?
Check the cable connection
with MECHA.
Proper Focus outputs
to motor dricer?
No
Check Focus connection on
ES8381 and motor driver.
Yes
Yes
Proper F+ & F- outputs?
Yes
C
Check cable connection with
pick-up head.
3-4
No
Check the amp circuit on motor driver.
C
Laser turns on when
reading disc?
No
DVDLD or
CDLD output
property?
No
Check the laser power circuit on
ES8380 and connecting to
power transistor.(Q405, Q406).
No
Check the related circuit on laser
power transistor.
No
Check the related circuit on
ES8380 RF signal.
No
Check the SPINDLE related circuit
on ES8380.
No
Check the spindle control amp circuit
of motor driver.
Yes
Yes
Collector
voltage of power
transistor is OK?
(Q405, Q406)
Yes
Check cable connection
between transistor output and
pick-up head.
Put disc in?
No
Laser off.
Yes
Disc ID is correct?
No
Proper
RF signal on ES8380.
Yes
Yes
Check the RF connection
between IP9009 and ES8380.
Does spindle rotate?
No
Proper
SPINDLE signal on
ES8380.
Yes
Yes
SPNP
SPNN output
properly?
Yes
D
Check the cable connection
between spindle and main PCB.
3-5
D
Focus on ok?
No
Proper
signals on A, B, C,
D of ES8380.
No
Check connections between
ES8380 and pick-up head.
Yes
Yes
Proper
CD-DVDCT signal
on ES8380.
No
Check the related circuit on
ES8380 CD-DVDCT.
No
Check the related circuit on
ES8380.
No
Check the TRACK connection
on ES8380 and motor driver.
No
Check the tracking control amp
circuit on motor driver.
Yes
Check CD_DVDCT connection
between IP9009 and ES8380.
Proper
CD-DVDCT signal
on ES8380.
Track On OK?
Yes
Yes
Proper
TRACK signal
on ES8380.
Yes
TR+ & TRoutput properly?
Yes
Check cable connection
on pick-up head.
Disc Playback?
No
Check RF signal waveform.
Yes
E
3-6
E
Normal Audio
output when disc
playback?
PWM IC
received correct data
stream?
Check connection between
IC701 BCK, LRCK, ADATAO.
Normal
PWM IC out?(IC701).
Check the related circuit of
PWM.(Check Audio out
Pins 54, 55, 58, 59, 61, 62,
67, 68, 70, 71, 74, 75.
Check Digital Amp circuit
(IC702, IC703).
TEST END.
3-7
3. AUDIO µ-COM Circuit(DVD & AMP)
POWER ON.
Does CD/DVD appear
at FLD?
NO
Does AUX, SCART, OPT
and FM 87.5 appear at FLD.
YES
Does Loading appear
at FLD?
NO
NO
YES
Does no Disc or Time
appear at FLD?
NO
Check power part of Main
B/D.
NO
Refer to SMPS.
YES
NO
Check if DVD an audio
micom insert is OK.
Check oscillator of X101.
YES
Refer to oscillator circuit.
YES
NO
YES
NO
YES
YES
Check Power.
Does it appear DVD Error
at FLD?
NO
Check if IC101 Pin41
is high.
Check IC101 reset
waveform.
YES
Check DVD Module.
Check SMPS.
Check if IC101 Pin15, 16,
47 are high(5V).
NO
Check 3.3V line.
YES
Check if IC101 Pin1
is high.
NO
YES
Replace IC101.
3-8
Check power section
circuit.
YES
OK
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING
1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL
1) ES8380 main clock is at 27MHz(X501)
3.8V, 27MHz
FIG 1-1
2) ES8380 reset is high active.
Power Cord in
5.2VA
PWR_CTL(SYSTEM µ-COM)
(IC101 PIN2)
DVD_RESET(IC101 PIN 41)
MRST#(IC501 PIN 203)
FIG 1-2
3-9
3) Flash R/W enable signal during download(Downloading)
FRD(IC503 PIN 28)
FWR(IC503 PIN 11)
FIG 1-4
2. SDRAM CLOCK
1) ES8380 main clock is at 27MHz(X501)
DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V
(IC502 PIN 38)
FIG 2-1
3-10
3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform
OPENSW(P401 PIN3)
CLOSESW(P401 PIN4)
OPEN(IC401 PIN 1)
CLOSE(IC401 PIN 2)
FIG 3-1
2) Tray close waveform
OPENSW(P401 PIN3)
CLOSESW(P401 PIN4)
OPEN(IC401 PIN 1)
CLOSE(IC401 PIN 2)
FIG 3-2
3-11
3) Tray open waveform
OPENSW(P401 PIN3)
CLOSESW(P401 PIN4)
OPEN(IC401 PIN 1)
CLOSE(IC401 PIN 2)
FIG 3-3
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
SLO(2.0V/1.4V/1.0V)
(IC501 PIN 173)
DRV_MUTE(5V) – (IC401 PIN 21)
SLED+(4.7V/3.6V/1.9V)
(IC401 PIN 17)
SLED-(5.3V/3.7V/2.5V)
(IC401 PIN 18)
FIG 4-1
3-12
5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION)
FOO(1.5V/1.4V/1.3V)
(IC501 PIN 172)
F+(4.0V/3.6V/3.2V)
(IC401 PIN 13)
F-(4.0V/3.6V/3.2V)
(IC401 PIN 14)
FIG 5-1
6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)
DVD MDI(0V/180mV)
(IC501 PIN 152)
DVDLDO501(5.0V//3.5V)
(IC501 PIN 149)
CDLDO(5.0V/3.6V)
(IC501 PIN 150)
FIG 6-1
3-13
7. DISC TYPE JUDGEMENT WAVEFORMS
F+(IC401 PIN 13)
CD_DVDCT(IC501 PIN 133)
RF(IC501 PIN 160)
FIG 7-1 (DVD)
F+(IC401 PIN 13)
CD_DVDCT(IC501 PIN 133)
RF(IC501 PIN 160)
FIG 7-2 (DVD)
3-14
F+(IC401 PIN 13)
CD_DVDCT(IC501 PIN 133)
RF(IC501 PIN 160)
FIG 7-3 (CD)
F+(IC401 PIN 13)
CD_DVDCT(IC501 PIN 133)
RF(IC501 PIN 160)
FIG 7-4 (CD)
3-15
8. FOCUS ON WAVEFORMS
CD_DVDCT(IC501 PIN 133)
FOO(IC501 PIN172)
F+(IC401 PIN 13)
F-(IC401 PIN 14)
FIG 8-1 (DVD)
CD_DVDCT(IC501 PIN 133)
FOO(IC501 PIN172)
F+(IC401 PIN 13)
F-(IC401 PIN 14)
FIG 8-2 (CD)
3-16
9. SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION)
SPINO(1.4V/1.8V)
(IC501 PIN 171)
SP-(3.6V/2.4V)
(IC501 PIN 156)
SP+(3.6V/4.8V)
(IC501 PIN 155)
FIG 9-1
10. TRACKING CONTROL RELATED SIGNAL(System checking)
CD_DVDCT(IC501 PIN 133)
TRO(IC501 PIN 174)
TR-(IC401 PIN 12)
TR+(IC401 PIN 11)
FIG 10-1(DVD)
3-17
CD_DVDCT(IC501 PIN 133)
TRO(IC501 PIN 174)
TR-(IC401 PIN 12)
TR+(IC401 PIN 11)
FIG 10-2(CD)
11. ES8380 VIDEO OUTPUT WAVEFORMS
1) Full colorbar signal(COMPOSIT)
(IC501 PIN 110)
FIG 11-1
3-18
2) Y
(IC501 PIN 113)
FIG 11-2
12. AUDIO OUTPUT FROM PWM IC
1) Audio L/R
(IC701 PIN 1, 7)
FIG 12-1
3-19
2) Audio related Signal
ASDATA3
ADATA0(IC501 PIN 118)
BCK(IC501 PIN 124)
LRCK(IC501 PIN 117)
FIG 12-2
3-20
13. DVD & AMP WAVEFORMS
1)
2)
• R620 → TP611
or
R621 TP612
3)
• R618 → TP609
or
R619 TP610
4)
• R612 → TP603
or
R613 TP604
5)
• R610 → TP601
or
R611 TP602
6)
• R614 → TP605
or
R615 TP606
• R616 → TP607
or
R617 TP608
3-21
DVD & AMP CIRCUIT DIAGRAM
1. MPEG CIRCUIT DIAGRAM
061026
3-23
3-24
2. DSP & AMP CIRCUIT DIAGRAM
061026
3-25
3-26
SECTION 4. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION
463
NOTES) THE EXCLAMATION POINT WITHIN AN
EQUILATERAL TRIANGLE IS INTENDED
TO ALERT THE SERVICE PERSONNEL
TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION IN SERVICE
LITERATURE.
A
463
B
OPTIONAL PART
A26
275
465
A50
283
273
A43
A
463
275
B
463
273
P3502
250
MAIN
C
C
CABLE1
280
463
A46
465
473
SMPS
A47
279
300
465
A44
261
260
4-1
4-2
• DECK MECHANISM EXPLODED VIEW(DP-10T)
001
002
003
A26
439
018
A01
014
A02
013
020
017
012
435
015B
015
015A
019
016
440
432
012
030
012A
010
026
439
024
025
431
036
435
012A
A03
021
430
4-3
4-4
• PACKING ACCESSORY SECTION
811
824 ANTENNA LOOP(AM)
RCA CABLE VIDEO(1WAY)
808 BATTERY
825 ANTENNA (FM)
801 INSTRUCTION ASSEMBLY
900 REMOCON
804 BAG
803 PACKING, CASING
803 PACKING, CASING
802 BOX
4-5
SECTION 5. SPEAKER SECTION
• FRONT/CENTER/REAR SPEAKER (SH22SF-SY)
OPTIONAL PART
A80
A81
F.R SPK
F.L SPK
A82
CENTER SPK
A83
R.R SPK
A84
R.L SPK
852
WIRE80 F.R SPK
850
WIRE81 F.L SPK
WIRE82 CENTER SPK
WIRE83 R.R SPK
FRONT/CENTER SPK
851
WIRE84 R.L SPK
853
851S REAR SPK
5-1
4. LHS-96SB
• PASSIVE SUBWOOFER SPEAKER (SH22SF-WY)
950
A90
WIRE90
951
952
954
953
5-2