HDR776
HDD/DVD RECORDER
SERVICE MANUAL
MODEL : RH265/RH266/HDR776
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL : RH265/RH266/HDR776
SERVICE MANUAL
P/NO : AFN31701932 JANUARY, 2007
http://biz.lgservice.com
CONTENTS
SECTION 1.........SUMMARY
SECTION 2.........CABINET & MAIN CHASSIS
SECTION 3.........ELECTRICAL
SECTION 4.........RS-02A LOADER PART
SECTION 5.........REPLACEMENT PARTS LIST
1-2
SECTION 1
SUMMARY
CONTENTS
NEW FUNCTIONS OF HDD/DVD RECORDER .................................................................................1-3
PRODUCT SAFETY SERVICING GUIDELINES FOR HDD/DVD RECORDER PRODUCTS
..............1-4
SERVICING PRECAUTIONS....................................................................................................................1-5
• GENERAL SERVICING PRECAUTIONS
• INSULATION CHECKING PRODEDURE
• ELECTROSTATICALLY SENSITIVE (ES) DEVICES
SERVICE INFORMATION FOR EEPROM IC SETTING ..................................................................1-6
SPECIFICATIONS ........................................................................................................................................1-7
1-3
NEW FUNCTIONS OF HDD/DVD RECORDER
• HDMI
HDMI IS THE SPECIFICATION FOR THE HIGH-DEFINITION MULTIMEDIA INTERFACE. HDMI IS PROVIDED
FOR TRANSMITTING DIGITAL TELEVISION AUDIOVISUAL SIGALS FROM HDD-DVD RECODER TO
TELEVISION SETS, OTHER VIDEO DISPLAYS. HDMI CAN CARRY HIGH QUALITY MULTI-CHANNEL AUDIO
DATA AND CAN CARRY ALL STANDARD AND HIGH DEFINITION CONSUMER ELECTRONICS VIDEO
FORMATS. CONTENT PROTECTION TECHNOLOGY IS AVAILABLE. HDMI CAN ALSO CARRY CONTROL
AND STATUS INFORMATION IN BOTH DIRECTIONS.
<< OPERATING >>
AUDIO, VIDEO AND AUXILIARY DATA IS TRANSMITTED ACROSS THE THREE TMDS DATA CHANNELS.
THE VIDEO PIXEL CLOCK IS TRANSMITTED ON THE TMDS CLOCK CHANNEL AND USED BY THE
RECEIVER AS A FREQUENCY REFERENCE FOR DATA RECOVERY ON THE THREE TMDS DATA
CHANNELS.
VIDEO DATA IS CARRIED AS A SERIES OF 24-BIT PIXELS ON THE THREE TMDS DATA CHANNELS.
TMDS ENCODING CONVERTS THE 8BIT PER CHANNEL INTO THE 10BIT DC-BALANCED.
VIDEO PIXEL RATES CAN RANGE FROM 25MHz TO 165MHz. THE VIDEO PIXELS CAN BE ENCODED IN
EITHER RGB, YCbCr 4:4:4 OR YCbCr 4:2:2 FORAMTS. IN ALL THREE CASES, UP TP 24 BITS PER PIXEL
CAN BE TRANSFERRED.
FAST DUBBING
DUBBING MEANS A COPYING FUNCTION BETWEEN HDD TO DVD DISCS.
COPYING BETWEEN HDD TO DVD IS A COMPLETELY DIGITAL PROCESS AND THEREFORE INVOLVES
NO LOSS OF QUALITY IN THE AUDIO OR VIDEO. SO THIS MEANS THAT COPYING CAN BE CARRIED OUT
AT THE MAXIMUM SPEED POSSIBLE.
<< DUBBING SPEED RATE >>
NORMAL DUBBING : SPEED RATE MAX X1
FAST DUBBING : SPEED RATE MAX X4
WHEN FAST DUBBING FROM HDD TO DVD, THE SPEED OF COPYING DEPENDS ON THE RECODING
MODE AND THE KIND OF USING THE DVD DISC, AND THIS MODE IS NOT AVAILABLE FOR EDITED VIDEO
TITLE IN HDD.
WHEN FAST DUBBING FROM DVD TO HDD, ONLY AVAILABLE WHEN COPYING VR MODE DISC(DVD-RW)
TO HDD, AND ONLY NORMAL DUBBING AVAILABLE WHEN COPYING VIDEO MODE DISC(DVD+RW/RW,
DVD-R) TO HDD.
1-4
PRODUCT SAFETY SERVICING GUIDELINES FOR HDD/DVD RECORDER PRODUCTS
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-video service
technicians.
When servicing this product, under no circumstances should the original design be
modified or altered without permission from LG Corporation. All components should
be replaced only with types identical to those in the original circuit and their physical
location, wiring and lead dress must conform to original layout upon completion of
repairs.
Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter “x” included in their component
designators and are required to maintain safe performance. No deviations are
allowed without prior approval by LG Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into the
set is not delayed until the new service literature is printed.
CAUTION
: Do not attempt to modify this product in any way. Never perform
customized installations without manufacturer’s approval. Unauthorized
modifications will not only void the warranty, but may lead to property damage or user
injury.
Service work should be performed only after you are thoroughly familiar with these
safety checks and servicing guidelines.
GRAPHIC SYMBOLS
The exclamation point within an equilateral triangle is intended to alert
the service personnel to important safety information in the service
literature.
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the service personnel to the presence of
noninsulated “dangerous voltage” that may be of sufficient magnitude
to constitute a risk of electric shock.
The pictorial representation of a fuse and its rating within an equilateral
triangle is intended to convey to the service personnel the following
fuse replacement caution notice:
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF
FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND
RATING AS MARKED NEAR EACH FUSE.
SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock. After
the original service problem has been corrected, make a check of the following:
FIRE AND SHOCK HAZARD
1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items trans-ported to and from
the repair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields, strain
reliefs, power supply cords, and other hardware have been reinstalled per the
original design. Be sure that the safety purpose of the polarized line plug has not
been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign particles.
4. Check for physical evidence of damage or deterioration to parts and components,
for frayed leads or damaged insulation (including the AC cord), and replace if
necessary.
5. No lead or component should touch a high current device or a resistor rated at 1
watt or more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws) to be sure that set is safe to operate without danger of
electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING
THIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity
in the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by a .15
mfd 150V AC type capacitor between a known good earth ground water pipe,
conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC
voltage across the combination of 1500 ohm resistor and .15 mfd capacitor.
Reverse the AC plug by using a non-polarized adaptor and repeat AC voltage
measurements for each exposed metallic part. Voltage measured must not
exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any value
exceeding this limit constitutes a potential shock hazard and must be corrected
immediately.
TIPS ON PROPER INSTALLATION
1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf
space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew
is a factor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should also
avoid the use of decorative scarves or other coverings that might obstruct
ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must follow
the factory-approved mounting instructions. A product mounted to a shelf or
platform must retain its original feet (or the equivalent thickness in spacers) to
provide adequate air flow across the bottom. Bolts or screws used for fasteners
must not touch any parts or wiring. Perform leakage tests on customized
installations.
5. Caution customers against mounting a product on a sloping shelf or in a tilted
position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small casters
across thresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest of
extensions, sprouting from a single outlet, can lead to disastrous consequences to
home and family.
1-5
SERVICING PRECAUTIONS
CAUTION: Before servicing the HDD / DVD RECORDER
covered by this service data and its supplements and
addends, read and follow the SAFETY PRECAUTIONS.
NOTE: if unforeseen circumstances create conflict between
the following servicing precautions and any of the safety
precautions in this publications, always follow the safety
precautions.
Remember Safety First :
General Servicing Precautions
1.Always unplug the HDD / DVD RECORDER AC power
cord from the AC power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an
electrolytic capacitor.
Caution : A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an
explosion hazard.
2.Do not spray chemicals on or near this HDD / DVD
RECORDER or any of its assemblies.
3.Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact
cleaning solution to the contacts with a pipe cleaner,
cotton-tipped swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication
of contacts is not required.
4.Do not defeat any plug/socket B+ voltage interlocks with
whitch instruments covered by this service manual might
be equipped.
5.Do not apply AC power to this HDD / DVD RECORDER
and / or any of its electrical assemblies unless all solidstate
device heat sinks are correctly installed.
6.Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter (500V)
to the blades of the attachment plug. The insulation
resistance between each blade of the attachment plug and
accessible conductive parts (Note 1) should be more than
1Mohm.
Note 1 : Accessible Conductive Parts include Metal panels,
Input terminals, Earphone jacks,etc.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged
easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of
typical ES 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 ES
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 ES 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 ES devices.
5.Do not use freon-propelled chemicals. These can generate
an electrical charge sufficient to damage ES devices.
6.Do not remove a replacement ES device from its
protective package until immediately before you are ready
to install it. (Most replacement ES devices are packaged
with leads electrically shorted together by conductive
foam, aluminum foil,or comparable conductive material).
7.Immediately before removing the protective material from
the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution: Be sure no power is applied to the chassis or
circuit, and observe all other safety precautions.
8.Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally 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 ES device.)
1-6
SERVICE INFORMATION FOR EEPROM IC SETTING
1. Press the CLEAR button on the remocon together with C PROGP on the front panel about 6 sec.
The picture on OSD will be as bellow :
Model : RH2'S
2. To MOVE from OP1 (Option 1) to another option, press button on the remote control or front pane.
3. To CHANGE the option code, press button on the remote control.
4. To APPLY the option code, after change the option press OK/ENTER button on remote control.
5. To INITIALIZE the system, press CLEAR button on the RMC together with C PROGP on the front panel
about 6 sec.
Note : This process will only clear the mapping channel and not delete on HDD.
6. To exit from the option code menu without initialize the system, just turn off the power and then turn on again.
OP1 : 00 00000000
OP2 : 00 00000000
OP3 : 00 00000000
OP4 : 00 00000000
OP5 : 00 00000000 Write : OK
OP6 : 00 00000000 E x i t : MP
OP7 : 00 00000000 Move : < >
OP8 : 00 00000000 E d i t :
MASK 00. EEP : FF(OR). D55
1-7
SPECIFICATIONS
• GENERAL
Power requirements AC 200-240V, 50/60Hz
Power consumption 30W
Dimensions (approx.) 430 X 54 X 275mm (w x h x d) without foot
Net weight (approx.) 4kg
Operating temperature 5°C to 35°C
Operating humidity 5% to 90%
Television system PAL I, B/G, I/I, SECAM D/K, K1, SECAM L color system
Recording format PAL
• RECORDING
Recording format DVD Video Recording, DVD-VIDEO
Recordable media HDD (160GB), DVD-ReWritable, DVD-Recordable, DVD+ReWritable,
DVD+Recordable, DVD+Recordable (Double Layer), DVD-RAM
Recordable time DVD (4.7GB) : Approx. 1hour (XP mode), 2hours (SP mode),
4hours (LP mode), 6hours (EP mode), 11hours (MLP mode)
DVD+R DL (8.5GB) : Approx. 1.8hour (XP mode),
3.6hours (SP mode), 7.3hours (LP mode), 11hours (EP/ MLP mode)
HDD (160GB, MPEG2 Recording) :
Approx. 66hours (XP mode), 84hours (SP mode),
164hours (LP mode), 233hours (EP mode), 477hours (MLP mode)
Video recording format
Sampling frequency 27MHz
Compression format MPEG2 or MPEG4 (HDD only)
Audio recording format
Sampling frequency 48kHz
Compression format Dolby Digital
• PLAYBACK
Frequency response DVD (PCM 48 kHz) : 8Hz to 22kHz, CD : 8Hz to 20kHz
DVD (PCM 96 kHz) : 8Hz to 44kHz
Signal-to-noise ratio More than 100dB (AUDIO OUT connector)
Harmonic distortion Less than 0.008% (AUDIO OUT connector)
Dynamic range More than 95dB (AUDIO OUT connector)
• INPUTS
ANTENNA IN Antenna input, 75ohms
VIDEO IN 1.0Vp-p 75ohms, sync negative, RCA jack x 1 / SCART x 2
AUDIO IN 2.0Vrms more than 47kohms, RCA jack (L, R) x 1 / SCART x 2
DV IN 4pin (IEEE 1394 standard)
USB IN 4pin (USB 1.1 standard)
• OUTPUTS
S-VIDEO OUT (Y) 1.0V (p-p), 75Ω, sync negative, Mini DIN 4-pin x 1
(C) 0.3V (p-p), 75Ω
COMPONENT VIDEO OUT (Y) 1.0V (p-p), 75Ω, sync negative, RCA jack x 1
(Pb)/(Pr) 0.7V (p-p), 75Ω, RCA jack x 2
HDMI video/audio output 19pin (HDMI standard, Type A)
Audio output (digital audio) 0.5V (p-p), 75Ω, RCA jack x 1
Audio output (optical audio) 3V(p-p), Optical connector x 1
Audio output (analog audio) 2.0Vrms (1KHz, 0dB), 600Ω, RCA jack (L, R) x 1 / SCART x 2
2-1
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS .....................................................................................................................................2-2
1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2
2. DECK MECHANISM SECTION (RS-02A).................................................................................................2-3
3. PACKING ACCESSORY SECTION...........................................................................................................2-4
SVC purchase order caution
Key board is array coming timer board.
Purchase order board separately supply
incomprehensible.
Supply is possible in Location No A50
state in exploded views.
C
B
C
A54A
A46
104
101
468
468
410
A53
A60
A50
275
452
452
A26
A44
A52
253
462/463
250
462/463
462/463
OPTIONAL PART
HDMI MODEL ONLY
9 TOOL ONLY
HDMI
BOARD
MAIN
BOARD
I/O BOARD
CABLE7
CABLE11
CABLE5
D
F
D
CABLE2
CABLE3
CABLE1
465
465
320
264
260
261
261
470
465
267
268
467
468
468
468
465
OPTIONAL PART
274
266
468
A51
280
A43
CABLE10
468
471
B
E
B
A
G
G
E
F
A
468
A47
A54
SMPS
468
273
275
452
CABLE6
463
261
261
281
282
300
2-2
EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION
2-3
2. DECK MECHANISM SECTION (RS-02A)
RS-02A(DR-10H)
1034
1025
1041
1432
1437
1434
1032
1033
1038
1011
1432
1020
1036
1432
Main C.B.A
1001
1431
1003
1002
1026
A001
A60
A002
1016
1433
1017
1013
1015
1012
1439
1047
1046
1014
OPTIONAL PART
1043
1045
1044
1042
A
005
1018
1019
1018
1019
DR-10 : IN, SH ONLY
DR-10 : PT ONLY
1043
1045
A005
1030
2-4
3. PACKING ACCESSORY SECTION
3-1
SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE
...........3-2
1. POWER SUPPLY ON SMPS BOARD..............3-2
2. POWER SUPPLY ON I/O BOARD ...................3-4
3. SYSTEM CIRCUIT PART ..................................3-9
4. DISC NOT RECOGNIZED.................................3-9
5.
WHEN PLAYING DISC, NO AUDIO OUTPUT
..........3-10
6. NO OPTICAL/DIGITAL OUTPUT ....................3-11
7. NO TUNER AUDIO OUTPUT..........................3-12
8. NO EXTERNAL AUDIO INPUT .......................3-13
9. NO RGB/COMPONENT VIDEO SIGNAL WHEN
PLAY DISC........................................................3-14
10. NO COMPOSITE/S-VIDEO SIGNAL
WHEN PLAY DISC............................................3-15
11. NO TV, EXTERNAL INPUT VIDEO
SIGNAL..............................................................3-16
12. NO DV (IEEE1394)
INPUT (VIDEO/AUDIO) SIGNAL.....................3-17
WAVEFORMS..........................................................3-18
1. SYSTEM BLOCK..............................................3-18
2. VIDEO BLOCK (COLOR BAR INPUT)...........3-21
3.
AUDIO BLOCK (1KHZ SINEWAVE INPUT)
..........3-22
4. SERIAL INTERFACE BLOCK
(BETWEEN MAIN AND I/O) ............................3-23
5. TUNER BLOCK ................................................3-24
6. HDMI BLOCK....................................................3-25
WIRING CONNECTION DIAGRAM...............3-26
1. WIRING CONNECTION DIAGRAM 1 ............3-26
2. WIRING CONNECTION DIAGRAM 2 ............3-27
3. WIRING CONNECTION DIAGRAM 3 ............3-28
BLOCK DIAGRAMS.............................................3-29
1. OVERALL BLOCK DIAGRAM.........................3-29
2. SMPS BLOCK DIAGRAM ...............................3-30
3. MAIN BLOCK DIAGRAM.................................3-31
4. POWER MAIN BLOCK DIAGRAM .................3-32
5. IN/OUT BLOCK DIAGRAM .............................3-33
6. VIDEO IN BLOCK DIAGRAM..........................3-34
7. VIDEO OUT BLOCK DIAGRAM .....................3-35
8. AUDIO IN BLOCK DIAGRAM..........................3-36
9. AUDIO OUT BLOCK DIAGRAM .....................3-37
10. POWER I/O BLOCK DIAGRAM......................3-38
11. FLD TIMER BLOCK DIAGRAM.......................3-39
12. TIMER BLOCK DIAGRAM...............................3-40
CIRCUIT DIAGRAMS...........................................3-42
1. SMPS 1 CIRCUIT DIAGRAM ..........................3-42
2. SMPS 2 CIRCUIT DIAGRAM..........................3-44
3. MPEG CIRCUIT DIAGRAM.............................3-46
4. FLASH/DDR CIRCUIT DIAGRAM ..................4-48
5. RESET & 1394 CIRCUIT DIAGRAM..............3-50
6.
ATAPI, HDMI & USB CIRCUIT DIAGRAM
............3-52
7. I/O, µ-COM CIRCUIT DIAGRAM ....................3-54
8. DECODER & MIC CIRCUIT DIAGRAM.........3-56
9. SCART/RCA CIRCUIT DIAGRAM ..................3-58
10. HDMI CIRCUIT DIAGRAM ..............................3-60
11.
TIMER CIRCUIT DIAGRAM (4, 5 TOOL)
...........3-62
12. TIMER CIRCUIT DIAGRAM (6 TOOL) ...........3-64
13. TIMER CIRCUIT DIAGRAM (7 TOOL) ...........3-66
14. TIMER CIRCUIT DIAGRAM (9 TOOL) ...........3-68
15. TOUCH SENSE CIRCUIT DIAGRAM
(9 TOOL) ............................................................3-70
CIRCUIT VOLTAGE CHART.............................3-72
PRINTED CIRCUIT DIAGRAMS .....................3-80
1. MAIN P.C.BOARD ............................................3-80
2. I/O P.C.BOARD .................................................3-82
3. POWER P.C.BOARD .......................................3-86
4. TIMER P.C.BOARD ..........................................3-88
5.
HDMI P.C.BOARD (OPTIONAL PARTS)
...........3-92
6. TOUCH PAD P.C.BOARD (9 TOOL)...............3-92
7. HDD JUNC P.C.BOARD ..................................3-92
Is the D127 normal?
3-2
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY ON SMPS BOARD
No 5.3VA
YES
Is the F101 normal? Replace the F101 (Use the same fuse)
YES
NO
Is the BD101 normal? Replace the BD101
YES
NO
Is the TH01 normal? Replace the TH01
YES
NO
Is the Vcc
(10V - 17V) supplied to
IC101 Pin 6?
Is the D102 normal?
YES
NO
NO
Check or replace the D102
Is the D128 normal? Replace the D128
YES
NO
Is there about 2.5V at the
IC103 Pin 1?
Replace the IC103
YES
NO
Is the D121 normal? Replace the D121
YES
NO
Is the D122 normal? Replace the D122
YES
NO
Is the D125 normal? Replace the D125
YES
NO
Is the D124 normal? Replace the D124
YES
NO
Replace the D127
YES
NO
Is the D126 normal? Replace the D126
YES
NO
Power line of I/O PCB is short
3-3
No 5V for HDD & DVD drive
Is there about 5.5V at
the IC156 Pin 1?
Check D125 and replace
YES
YES
NO
Is there about 4V ~ 5V at
the IC156 Pin 4?
Check the “PWR CTL‘H’”
signal from µ-COM
YES
NO
Check the IC156 and replace
No 12V for HDD & DVD drive
Is there about 13.5V at
the IC155 Pin 1?
Check D124 and replace
YES
YES
NO
Is there about 4V ~ 5V at
the IC155 Pin 4?
Check the “PWR CTL ‘H’”
signal from µ-COM
YES
NO
Check the IC155 and replace
3-4
No 12VT
2. POWER SUPPLY ON I/O BOARD
Check D124 on SMPS
board and replace
YES
YES
NO
Is the Vcc (14V) supplied to
Q164 collector?
Check Q164 and replace
YES
NO
Is there about 12.5V at
ZD151 & Q164 base?
Check D126 on SMPS
board and replace
YES
NO
Is the Vcc (33V) supplied
to Q162 emitter?
Check Q162 and replace
YES
NO
Is there about 0V at
Q162 base?
Check the “TIMER_H”
signal from µ-COM
YES
NO
Is there about 5V at R170
and 0.7V at Q165 base?
Check Q156 and replace
3-5
No 5VT
Check Q152 and replace
Is the Vcc (5.3V)
supplied to Q155 emitter?
Check 5.3VA on SMPS board
YES
YES
NO
Is there about 0V
at D152 and
Q152 vollector?
Check Q155 and replace
YES
NO
Is there about 5V
at R180 and 0.7V
at Q152 base?
Check the “TIMER H”
signal from µ-COM
YES
NO
No 33VT
Check Q152 and replace
Is the Vcc (33V)
supplied to Q161 emitter?
Check D126 on SMPS
board and replace
YES
YES
NO
Is there about 0V at
Q152 collector?
Check Q161 and replace
YES
NO
Is there about 5V
at R180 and 0.7V
at Q152 base?
Check the “TIMER H”
signal from µ-COM
YES
NO
3-6
No 5.0VD
Is there about 5.3V at
the IC153 Pin 1?
Check 5.3VA on SMPS board
YES
YES
NO
Is there about 4V ~ 5V at
the IC153 Pin 4?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the IC153 and replace
No 2.5V
Is there about 3V ~ 3.8V
at the IC151 Pin 1?
Check D154 and
D127 on SMPS board
YES
YES
NO
Is there about 4V ~ 5V at
the IC151 Pin 4?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the IC151 and replace
No 3.3V
Is there about 3.8V at
the IC152 Pin 1?
Check D127 on SMPS
board and replace
YES
YES
NO
Is there about 4V ~ 5V at
the IC152 Pin 4?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the IC152 and replace
3-7
No SW_5.3VA
Is the Vcc (5.3V)
supplied to Q158 emitter?
Check 5.3VA on SMPS board
YES
YES
NO
Is there about 0V
at R179 and R156?
Check the “STANBY H”
signal from µ-COM
YES
NO
Check Q158 and replace
No SW_FD(+)
Is the Vcc (FD+) supplied
to Q163 collector?
Check D121 on SMPS
board and replace
YES
YES
NO
Is there about 5.3V at
R184 and Q153 collector?
Check Q163 and replace
YES
NO
Is the VCC (5.3V)
supplied to Q153 emitter?
Check 5.3VA on SMPS board
YES
NO
Is there about 0V
at Q153 base?
Check the “STANBY H”
signal from µ-COM
YES
NO
Check Q153 and replace
3-8
No 1.8V
There is 1,8V at IC155 Pin 2, 4
Is the Vcc (3.3V)
supplied to Pin 3 IC155?
Check 3.3V power supply
YES
YES
NO
IC155 defect
NO
No 1.25V
Check the IC154 and replace
Is there about 5.3V at
the IC154 Pin 2?
Check 5.3VA on SMPS board
YES
YES
NO
Is there about 4V ~ 5V at
the IC154 Pin 5?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
3-9
“Please wait” displayed
continue at power on
3. SYSTEM CIRCUIT PART
Check PVM02 Pin 25 IC 701 Pin 19
YES
YES
NO
IC1306 Pin 5 : ?
(/HOST-RESET)
Replace X1101
YES
NO
X1101 : Clock oscillated?
(13.5MHz)
Check IC1201 (Flash memory) & IC1101
YES
NO
AR1105 Pin 3 : ?
IC1201 Pin 32 : ?
IC1101 defect
NO
R1173, R1174 : ?
DISC not recognized
4. DISC NOT RECOGNIZED
Check SMPS
YES
NO
Check driver power?
5V, 12V
Change MEDIA TEST
YES
NO
Check ATAPI connector
Check loader
3-10
When playing DISC, no Audio output
Replace IC905
IC905 Pin 1, 7 :
Is there a signal
Check
IC905 Pin 8
(12VT)
CHECK
IC903 Pin 5, 6,
7, 8 : .
Pin 3, 4 (Host CLK
& DATA) :
NO NO
YES
YES
IC1101 defect
5. WHEN PLAYING DISC, NO AUDIO OUTPUT
IC903 Pin 14, 15 :
Is there a signal?
Check
IC801 Pin 14
(12V) Pin 30 (5, 3V)
Pin31, 32
(SCL, SDA) :
NO NO
Replace
IC801
IC803 Pin 34, 35,
37, 38 : Is there
a signal?
NO
NO
YES
L806, L826,
L825, L810 :
Is there a signal?
YES
YES
YES
YES
Check
Q808, Q809, Q810, Q801
Check
cable connections &
TV audio mute.
Check
IC903 Pin 11 (5VD)
YES
Replace IC903
IC903 Pin 1, 16
(Z_MUTE R/L) : .
IC701 Pin 58
(A_MUTE_L) :
3-11
6. NO OPTICAL/DIGITAL OUTPUT
R1107 : .
Is there a signal?
C856 : .
Is there a signal?
R851 : .
Is there a signal?
YES YES
BD817 : .
Is there a signal?
Check JK803 Pin 2 (5V)
YES YES
Check JK802 &
RCA cable connection
Check JK803 &
optic cable connection
YES
Check
PVM02 Pin 24 (SPDIF_OUT) : .
YES
3-12
7. NO TUNER AUDIO OUTPUT
TU701 Pin 16 (SIF) :
Is there a signal?
IC901 Pin 106, 107
Is there a signal?
IC901 defect
When playing DISC,
no audio output
Replace IC801
CHECK
IC801 Pin 14 (12V)
Pin 30 (5, 3V) Pin 31, 32
(SCL, SDA) :
NO
NO
Change X901
X901 (24.576MHz)
oscillated?
NO
YES
YES
YES
YES
IC801 Pin 40, 41 :
Is there a signal?
Check IC1302
reset circuit
Check Pin 51/
RST_SAA7138
NO
NO
YES
YES
YES
Check IC901 power
3.3V & 1.8V
R606, R612
(SCL/SDA)
NO
YES
IC901 Pin 98,
99, 100, 95 (Ain_D0,
AIN_SCLK, AIN_FSYNC,
AIN_MCLK) : Is there
a signal?
3-13
NO
NO
NO
YES
YES
YES
YES
8. NO EXTERNAL AUDIO INPUT
< AV3 > < AV1/AV2>
IC803 Pin 40, 41 :
Is there a signal?
NO
YES
YES
YES
C9F3, C9F4 :
Is there a signal?
IC801 pin 2, 3, 5, 6 :
Is there a signal?
Check
IC801 Pin 14 (12V)
Pin 30 (5, 3V)
Pin 31, 32
(SCL, SDA) : .
Check
cable connections
& input signal.
IC901 defect
When playing DISC,
no audio output
IC901
Pin 98, 99,100,
95 (Ain_D0,
AIN_SCLK, AIN_FSYNC,
AIN_MCLK) :
Is there
a signal?
Replace
IC801
NO
Check
IC1302 reset
circuit
Check Pin 51/
RST_SAA7138
NO
Change X901
X901
(24.576MHz)
oscillated?
NO
Check
IC901 power
3.3V & 1.8V
R606, R612
(SCL/SDA)
3-14
R1160, R1161, R1162 :
Is there a signal?
PVM01 Pin 6, 8, 10 :
Is there a signal?
Check condition
RGB_Sel_Out & Ypbpr_Mute_L
Check cable connection Replace IC801
9. NO RGB/COMPONENT VIDEO SIGNAL WHEN PLAY DISC
YES
YES
YES
YES
YES
NO
IC801 Pin 24, 25, 26 :
Is there a signal ?
CHECK IC801 Pin 14 (12V)
Pin 30 (5, 3V)
Pin 31, 32 (SCL, SDA) : .
3-15
10. NO COMPOSITE/S-VIDEO SIGNAL WHEN PLAY DISC
R1157, 1158, 1159 :
Is there a signal?
PVM01 Pin 5, 7, 14 :
Is there a signal?
Check SCART
cable connection
Check IC801 Pin 14 (12V)
Pin 30 (5, 3V) Pin 31, 32
(SCL, SDA) : .
IC801 Pin 27, 29, :
Is there a signal?
IC801 Pin 36, 39, :
Is there a signal?
NO
YES
YES
Replace IC801
YES
Check S-VIDEO
cable connection
YES
YES
(SCART)
(S-VIDEO)
3-16
No TV, external input
video signal
IC 801 Pin 42 :
Is there a signal?
R605 :
Is there a signal?
Check Pin 51
/RST_SAA7138
IC901 Pin (56, 57, 58,
61,62, 63, 64, 65) VIND2-VIND9
is there a signal .
When cable
connecting tuner
and rear SCART 1, 2
no TV video signal
(AV1/2)
NO
NO
YES
YES
YES
YES
11. NO TV, EXTERNAL INPUT VIDEO SIGNAL
No video
signal of external
input AV3
(Front
RCA input)
NO
NONO
Check
IC801 Pin 14
(12V) Pin 30
(5, 3V) Pin 31,
32 (SCL, SDA)
: .
YES
Check
cable connection &
input signal
C859, C896, C895 :
Is there a signal?
YES
YES
CheckK no RGB / component / composite /
S-VIDEO signal when play DISC
Replace
IC801
Check
IC1302 reset
circuit
X901
(24.576MHz)
oscillated?
YES
NO
Change
X901
R606,
R612 (SCL/SDA), L928
(VinCLK)
IC901 defect
YES
NO
Check
IC901 power
3.3V & 1.8V
3-17
Check DV_Jack connection
12. NO DV (IEEE1394) INPUT (VIDEO/AUDIO) SIGNAL
Change to DV-mode.
using remote control
YES
YES
NO
DV-mode switching?
Check power 3.3V on I/O board
YES
NO
IC1401 power 3.3V
Check IC1302 reset circuit
YES
NO
IC1401 Pin 37 : “High”
& X401 (24.576MHz)
oscillated ?
Check DV cable
YES
NO
IC1401 pin 15 : “High” .
Is there a signal?
Replace IC1401
YES
NO
IC1401
Pin 1, 27, 28, 29, 30 :
Is there a signal?
NO
YES
IC1401 Pin 2, 3 :
Is there a signal?
IC101 defect
3-18
WAVEFORMS
1. SYSTEM BLOCK
Main Clock
1
1
Frequency=13.5MHz
IC1101
DDR RAM Clock
2
2
Frequency=198MHz
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