LG DR-1-F-9-H Service manual
DVD RECORDER
SERVICE MANUAL
MODEL : DR1F9H
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL : DR1F9HSERVICE MANUAL
P/NO : 3829RHN005L FEBRUARY,2006
CONTENTS
SECTION 1 . . . . SUMMARY
SECTION 2 . . . . CABINET & MAIN CHASSIS
SECTION 3 . . . . ELECTRICAL
SECTION 4 . . . . RS-01A LOADER PART
SECTION 5 . . . . REPLACEMENT PARTS LIST
1-1
SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS.............. 1-2
SERVICING PRECAUTIONS .................................................................................................. 1-3
• General Servicing Precautions
• Insulation Checking Prodedure
• Electrostatically Sensitive Devices
SERVICE INFORMATION FOR EEPROM IC SETTING.................................................. 1-4
FLASH UPGRADE...................................................................................................................... 1-5
LOADER UPGRADE.................................................................................................................. 1-7
SPECIFICATIONS ...................................................................................................................... 1-9
1-21-2
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 Electronics
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 Electronics 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.
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
A.C. Voltmeter
Good Earth Ground
such as the Water
Pipe, Conduit, etc.
0.15uF
1500 OHM
10 WATT
Place this probe
on each exposed
metal part.
1-3
SERVICING PRECAUTIONS
CAUTION : Before servicing the 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.
Remembers Safety First:
General Servicing Precautions
1. Always unplug the 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) Disconnection or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an elec-
trolytic 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 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 DVD Recorder and/or any
of its electrical assemblies unless all solid-state device
heat sinks are cerrectly installed.
6. Always connect test instrument ground lead to the
appropriate ground before connection 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 including 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 grouned-tip soldering iron to solder or unsolder
ES devices.
4. Use only an anti-static solder removal device. Some
solder removal devices not classified a “anti-static” can
generate electrical charges sufficient to damage ES
devices.
5. Do not use freon-propelled chemicals. These can
generate electrical charge sufficient to damage ES
devices.
6. Do not remove a replacement ES device from its protec
tive 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.)
1-4
SERVICE INFORMATION FOR EEPROM IC SETTING
MICOM START
OPTION CONFIRMATION MODE
DETECT NEW EEPROM (OPTION EDIT SCREEN)
EEPROM ID CHECK
2 BYTE(B3,248,249)
ID OK?
Yes
OPTION DATA READ
5TIME & COMPARE
Yes
MICOM NORMAL
OPERATION START
*** EEPROM INITIAL ***
- SETUP is displayed in the field if pressing the Front PROG. - & + Key with the Remote Control number "clear" key pressed in the status of
powering on.
- AUTO SEARCH is done since the initial screen of ACMS is serviced if powering on.
No
No
NAME HEX BINARY
OPT1 91 00000000
OPT2 20 00000000
OPT3 00 00000000
OPT4 49 00000000
OPT5 8F 00000000
OPT6 9E 00000000
OPT7 15 00000000
OPT8 13 00000000
WRITE : OK EXIT : MP
MOVE : < > EDIT :
MASK : 00 , EEP : FF(0R), D17
(Each mask ,eeprom, It shows a
development release version.)
Press the "CLEAR" key on the
Remote controller and the
"PROG. - " key one the Front Panel
the same time, then it goes in to
Tracking initial mode.
OPTION condition of Present time the
CHECK There is a Possibility of doing and
the OPTION the REWRITE it is possible.
FLASH UPGRADE
1. MAKING UPGRADE DISC
1) Physical format must be ISO9660 or JOLIET file system.
2) CD Volume label is unimportant.
3) Write DR100 BE Upgrade File on Root.
* OPTIONAL PARTS
• DR100 8601 64M NTSC) :
LG_DR100_8601NT64_UPDATE.590
• DR100 860164M (PAL ) :
LG_DR100_8601PAL64_UPDATE.590
• DR100 860132M (NTSC) :
LG_DR100_8601NT_UPDATE.590
• DR100 860132M (PAL ) :
LG_DR100_8601PAL_UPDATE.590
• DR100 8603 64M (NTSC) :
LG_DR100_8603NT_UPDATE.590
• DR100 8603 64M (PAL ) :
LG_DR100_8603PAL_UPDATE.590
< example- Nero Burning Rom >
2. UPGRADE FLASH
1) Put Flash Upgrade Disc in the DVD Player.
2) After Disc Reading, you can see below screen.
3) Press REC KEY 3 times. It will start Inspection.
1-5
1-6
4) You can see both current and upgrade version.
Press REC KEY.
5) Upgrading.
6) After Upgrading, you can see the below screen. And automatically open tray.
Remove
the Disc. Reboot the set.
LOADER UPGRADE
1.MAKING UPGRADE DISC
1) Physical format must be ISO9660 or JOLIET file system
2) Name the Volume label as “DRIVE_UP”.
3) Write DvdSLxx.rs1
, YASMSLxx.BIN on Root like below.(xx is Version)
< example- Nero Burning Rom >
2. LOADER UPGRADE
1) Put Loader Upgrade Disc in the DVD Player.
2) After Disc Reading, you can see the below screen.
3) Press REC KEY 3 times.
1-7
1-8
4) After Tray open, remove the disc and close the tray.
5) It shows both the current version and upgrade version.
Press REC KEY.
6) Upgrading.
7) After finishing Upgrade, it shows the below screen and powers
off
SPECIFICATIONS
• GENERAL
Power requirements AC 120V, 60 Hz
Power consumption 22W
Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without feet
Mass (approx.) 4.1 kg
Operating temperature 5°C to 35°C
Operating humidity 5 % to 90 %
Television system PAL I, B/G, I/I, SECAM D/K, K1 color system
Recording format PAL
• RECORDING
Recording format DVD Video Recording, DVD-VIDEO
Recordable media DVD-ReWritable, DVD-Recordable, DVD+ReWritable,
DVD+Recordable, DVD+Recordable (Double Layer), DVD-RAM
Recordable time DVD (4.7GB): Approx. 1 hour (XP mode), 2 hours (SP mode),
4 hours (LP mode), 6 hours (EP mode)
DVD+R DL (8.5GB): Approx. 3 hour (XP mode),
3 hours 40 minutes (SP mode),
7 hours 10 minutes (LP mode),
10 hours 30 minutes (EP mode)
Video recording format
Sampling frequency 27MHz
Compression format MPEG 2 (VBR support)
Audio recording format
Sampling frequency 48kHz
Compression format Dolby Digital
• PLAYBACK
Frequency response DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz
DVD (PCM 96 kHz): 8 Hz to 44 kHz
Signal-to-noise ratio More than 100 dB (AUDIO OUT connector)
Harmonic distortion Less than 0.008% (AUDIO OUT connector)
Dynamic range More than 95 dB (AUDIO OUT connector)
• INPUTS
ANTENNA IN Antenna/Cable input, 75 ohms
VIDEO IN 1.0 Vp-p 75 ohms, sync negative, RCA jack x 2 / SCART x 2
AUDIO IN 2.0 Vrms more than 47 kohms, RCA jack (L, R) x 2 / SCART x 2
S-VIDEO IN (Y) 1.0 V (p-p), 75 Ω, sync negative, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω
DV IN 4 pin (IEEE 1394 standard)
• OUTPUTS
VIDEO OUT 1 Vp-p 75 Ω, sync negative, RCA jack x 1 / SCART x 2
S-VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, sync negative, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω
COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1
(Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2
HDMI video/audio output 19 pin (HDMI standard, Type A)
(DR197H only)
Audio output (digital audio) 0.5 V (p-p), 75 Ω, RCA jack x 1
Audio output (optical audio) 3 V (p-p), Optical connector x 1
Audio output (analog audio) 2.0 Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 / SCART x 2
1-9
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-01A) .......................................................................................2-3
3. Packing Accessory Section ...................................................................................................2-4
2-2
EXPLODED VIEWS
1. Cabinet and Main Frame Section
A
5
4
3
2
1
BCD
463
463
300
468
A47
SMPS
463
468
250
CABLE3
OPTIONAL PART
HDMI MODEL ONLY
471
B
CABLE9
251
C
A46
OPTIONAL PART
HDMI MODEL ONLY
A54
HDMI
BOARD
253
468
MAIN
BOARD
D
A
251
463
468
468
C
TU701
CABLE5
A52
I/O BOARD
272
A
467
274
320
268
267
OPTIONAL
PART
264
A44
B
465
265
OPTIONAL PART
465
261
261
260
465
261
452
A55
463
JUNCTION
A60
OPTIONAL
A56
468
OPTIONAL
PART
MEMORY
A43
PART
452
D
452
275
A50
275
CABLE3
CABLE1
468
280
273
2-32-3
2. DECK MECHANISM SECTION(RS-01A)
1001
1003
1026
1017
1431
1002
A001
1041
1432
A60
A002
1434
1033
1032
1034
1437
1025
1030
1038
1432
1036
1433
1016
1012
1015
1014
1018
1019
A005
1048
1042
1043
1044
1047
1013
1045
1046
1011
1020
1432
Main C.B.A
1439
2-4
3. Packing Accessory Section
832
DISC
810
CABLE ASS'Y
Cable, Coaxial
806
811
Plug Ass'y, 1Way
808 Battery
Remote Control
900
Owner's Manual
801
Packing
803
Box
802
814
Plug Ass'y, 1Way
Plug Ass'y, 2Way
812
822
FLAT CABLE
Bag
804
803
Packing
OPTIONAL PARTS
3-1
SECTION 3
ELECTRICAL
CONTENTS
VDR PART
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 ..........................................................................................................3-11
4. DISC NOT RECOGNIZED ........................................................................................................3-11
5. WHEN PLAYING DISC, NO AUDIO OUTPUT..........................................................................3-12
6. NO OPTICAL / DIGITAL OUTPUT............................................................................................3-13
7. NO TUNER AUDIO OUTPUT ...................................................................................................3-14
8. NO EXTERNAL AUDIO INPUT .................................................................................................3-15
9. NO RGB / COMPONENT VIDEO SIGNAL WHEN PLAY DISC ...............................................3-16
10. NO COMPOSITE / S-VIDEO SIGNAL WHEN PLAY DISC ....................................................3-17
11. NO TV, EXTERNAL INPUT VIDEO SIGNAL...........................................................................3-18
12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL............................................................3-19
BLOCK DIAGRAMS........................................................................................................................3-20
1. POWER BLOCK DIAGRAM......................................................................................................3-20
2. MAIN POWER BLOCK DIAGRAM ...........................................................................................3-22
3. VIDEO IN BLOCK DIAGRAM ...................................................................................................3-24
4. VIDEO OUT BLOCK DIAGRAM ...............................................................................................3-26
5. AUDIO IN BLOCK DIAGRAM...................................................................................................3-2 8
6. AUDIO OUT BLOCK DIAGRAM...............................................................................................3-30
7. SYSTEM MAIN BLOCK DIAGRAM ..........................................................................................3-32
8. I/O µ-COM BLOCK DIAGRAM................................................................................................. 3-34
9. SCART BLOCK DIAGRAM(SCART MODEL ONLY)................................................................3-36
10. HDMI BLOCK DIAGRAM (HDMI MODEL ONLY) ...................................................................3-38
11. MEMORY BLOCK DIAGRAM (MEMORY SLOT MODEL ONLY)...........................................3-40
CIRCUIT DIAGRAMS ......................................................................................................................3-42
1. SMPS CIRCUIT DIAGRAM.......................................................................................................3-42
2. MAIN POWER CIRCUIT DIAGRAM .........................................................................................3-44
3. MPEG CIRCUIT DIAGRAM ......................................................................................................3-46
4. A.LA TCH/FLASH/DDR CIRCUIT DIAGRAM.............................................................................3-48
5. LOADER/DV CIRCUIT DIAGRAM............................................................................................3-50
6. I/O µ-COM CIRCUIT DIAGRAM ...............................................................................................3-52
7. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM ................................................................3-54
8. DECODER CIRCUIT DIAGRAM...............................................................................................3-56
9. HDMI CIRCUIT DIAGRAM........................................................................................................3-58
10. TIMER CIRCUIT DIAGRAM....................................................................................................3-60
11. KEY CIRCUIT DIAGRAM........................................................................................................3-62
• WAVEFORMS..................................................................................................................... ........3-64
• CIRCUIT VOLTAGE CHART.......................................................................................................3-66
PRINTED CIRCUIT DIAGRAMS......................................................................................................3-72
1. MAIN P.C.BOARD(TOP SIDE) .................................................................................................3-72
2. MAIN P.C.BOARD(BOTTOM SIDE) ..........................................................................................3-74
3. I/O P.C.BOARD .........................................................................................................................3-76
4. HDMI P.C.BOARD(OPTIONAL PARTS)....................................................................................3-76
5. KEY P.C.BOARD.......................................................................................................................3-78
6. TIMER P.C.BOARD...................................................................................................................3-78
7. POWER P.C.BOARD ................................................................................................................3-79
VDR PART
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY ON SMPS BOARD
No .5.3VA
YES
Is the F101 Good?
YES
Is BD101
Good?
YES
Is R101 Good?
YES
Is Vcc (10V - 16V)
supplied to IC101 Pin7?
NO
Replace F101
(Use the same Fuse)
NO
Replace BD101
NO
Replace R101
NO
Is D102 Good?
NOYES
Check or Replace
D102
YES
Is the D127 Good?
YES
Power Line of I/O
PCB is shorted
NO
Replace D127
Is D121 Good?
YES
Is 2.5V present
at IC103 Pin1?
YES
Is IC102 Good?
YES
Is D124 Good?
YES
Is D125 Good?
YES
NO
Replace D123
NO
Replace IC103
NO
Replace IC102
NO
Replace D124
NO
Replace D125
3-2
3-3
No 12V
YES
Check the PWR CTL “H” signal
from µ-com
No 5V
YES
Check the PWR CTL “H” signal
from µ-com
Is Vcc(14.0V) supplied to IC131 pin 1?
YES
Is IC131
Check or Replace IC131
pin4 ‘H’?
YES
NO
NO
Check or Replace D127
Is Vcc(5.5V) supplied to IC132 pin 1?
YES
Is IC132
Check or Replace IC132
pin4 ‘H’?
YES
NO
NO
Check or Replace D125
2. POWER SUPPLY ON I/O BOARD
No 12V
YES
Is VCC (14V) supplied to Q164
Collector?
YES
Is 12.5V present at ZD151
Base ?
Is VC
C (33V) supplied to Q162
Emitor ?
Is 0V at Q162 Base ?
Is there 5V at R171 and 0.7V at
Q156 Base?
& Q164
YES
YES
YES
YES
NO
NO
NO
NO
NO
Check D124 on SMPS Board and
Replace
Check Q164 and Replace
Check D126 on SMPS Board and
Replace
Check Q162 and Replace
Check the ‘PWR CTL H’ signal from
µ-COM
Check Q156 and Replace
3-4
3-5
No 5.2V
YES
Check Q156 and Replace
YES
No 5VT
YES
Check Q152 and Replace
YES
Is VCC (5.3V) supplied to Q151
Emitor ?
YES
Is there 0V
Collector ?
Is there 5V
Q156 Base ?
at D153 and Q156
YES
at R171 and 0.7V at
NO
NO
NO
Check 5.3VA on SMPS Board
Check Q151 and Replace
Check the ‘PWR CTL H’ signal from
µ-COM
Is VCC (5.3V) supplied to Q155
Emitor ?
YES
Is there 0V
Collector?
Is there 5V
Q152 Base?
at D152 and Q152
YES
at R180 and 0.7V at
NO
Check 5.3VA on SMPS Board
NO
Check Q155 and Replace
NO
Check the ‘TIMER H’ signal from µ-COM
3-6
No 33VT
YES
Check Q152 and Replace
YES
No 5.0VD
YES
Check 5.3VA on SMPS Board
Check the ‘PWR CTL H’ signal from
µ-COM
Is VCC (33V) supplied to Q161
Emitor ?
YES
Is there 0V at Q152 Collector ?
YES
Is there 5V
Q152 Base?
at R180 and 0.7V at
NO
NO
NO
Check D126 on SMPS Board and Replace
Check Q161 and Replace
Check the ‘TIMER H’ signal
from µ-COM
Is 5.3V at IC153 pin 1 ?
YES
Is there 4V ~ 5V at IC153
pin 4 ?
YES
Check IC153
and Replace
NO
NO
3-7
No 3.3V
YES
Check D127 on SMPS Board and Replace
Check the ‘PWR CTL H’ signal from
µ-COM
No 2.5V
YES
Check D154 and D127 on SMPS Board
Check the ‘PWR CTL H’ signal from
µ-COM
Is 3.8V at IC152 pin 1?
YES
Is there 4V ~ 5V at IC152
pin 4?
YES
Check IC152
and Replace
NO
NO
Is about 3V ~ 3.8V at IC151
pin 1?
YES
Is about 4V ~ 5V at IC151
pin 4?
YES
Check IC151
and Replace
NO
NO
3-8
No SW_5.3VA
YES
Check 5.3VA on SMPS Board
No 1.8V(SAA7137)
YES
Check 3.3V power supply
Check Q159 and Replace
Is VCC (5.3V) supplied to Q158
Emitor?
YES
Is there 0V
at R179 and R156 ?
YES
Check Q158 and Replace
NO
NO
Check the ‘STANDBY H’ signal from µ -COM
Is VCC (3.3V) supplied to Q159
Emitor And IC154 pin 1, 2, 8 ?
YES
Is about
and IC154 pin 3 ?
3V ~ 3.3V at Q159 Base
YES
Check IC154 and Replace
NO
NO
3-9
No SW_12VG
YES
Check Q166 and Replace
YES
Is VCC (14V) supplied to Q165
Collector ?
YES
Is 12.5V
Base ?
at ZD152 & Q165
NO
Is VCC
Emitor ?
Is 5.3V at Q166 Base ?
(33V) supplied to Q160
YES
Is there 0V at Q160 Base ?
NO
NO
Check D124 on SMPS Board and Replace
YES
Check Q165 and Replace
NO
Check D126 on SMPS Board and Replace
YES
Check Q160 and Replace
NO
Check SW_5.3VA
3-10
No 1.8V (SAA7137)
YES
Check 3.3V power supply
Check Q159 and Replace
No 1.25V
YES
Check IC154 and Replace
YES
Is VCC (3.3V) supplied to Q159
Emitor And IC154 pin 1,2,8 ?
YES
Is about
and IC154 pin 3 ?
3V ~ 3.3V at Q159 Base
YES
Check IC154 and Replace
NO
NO
Is VCC (2V) supplied to Q154 Emitor?
YES
Is there 2V ~ 2.5V at Q154 Base
and IC154 pin 4 ?
YES
Is VCC
pin 1, 2, 8 ?
(3.3V) supplied IC154
NO
Check D155 and 2.5V power supply
NO
Check Q159 and Replace
NO
Check 3.3V power supply
3-11
3. SYSTEM CIRCUIT PART
“HELLO” displayed Continue at Power On
TP441, R1443 : HIGH (/RST_HOST) ?
YES
Check PVM02 pin 13 IC 701 pin 19
(R714)
NO
X1101 : Clock oscillated ? (13.5MHz)
YES
Replace X1101
NO
Check IC1201 (Flash Memory) & IC1101
NO
IC1101 DEFECT
NO
IC1302 pin 26 :
( Flash Chip Select )
YES
R1126, R1127 :
( I2C I/F : SCL, SDA )?
YES
4. DISC NOT RECOGNIZED
Check Driver Power ?
5V, 12V
Check ATAPI Interface PML01
YES
Change MEDIA TEST
NO
Check SMPS
NO
3-12
5. WHEN PLAYING DISC, NO AUDIO OUTPUT
IC1101 DEFECT
CHECK IC808 pin 1,2,3,4:
Pin 10 (Reset “H”) :
Pin 7, 8 (I2C) :
CHECK IC808 pin 17
(12V) pin 5,11,20 (3.3V)
YESYES
Replace IC808
L822, L823 :
Is there a signal?
Only “Without SCART model”
YESYES
IC808 pin 15,18(Audio_out
R/L): Is there a signal?
NO
NO
NO
NO
IC808 pin 14,19 (Z_mute_R/L) :
IC701 pin 58 (A_mute_L) :
IC801 pin 1, 7
Is there a signal?
IC803 pin 21, 22, 25,
26 : Is there a signal?
L806, L826, L825, L810
: Is there a signal?
CHECK Cable connections & TV Audio mute.
CHECK Q801,
Q802, Q803,Q805,
Q806, Q807, Q808
NO
Replace IC801
CHECK IC803 pin 2,4
(VCC) : 12V
Pin 32,33 (SCL/SDA) :
Replace IC803
YES
NO
CHECK
IC801 pin 8 (12V)
NO
NO
YES
YES
YES
R1122 :
Is there a signal?
3-13
6. NO OPTICAL / DIGITAL OUTPUT
CHECK PVM01 pin 1 (SPDIF_OUT) :
YES
R851 :
Is there a signal?
YES
YES
YES
CHECK JK803 pin 2 (5.2V)
YES
CHECK JK803 & Optic cable connection
YES
C856 :
Is there a signal?
BD817 :
Is there a signal?
CHECK JK802 & RCA cable connection
3-14
CHECK IC903, 904
pin 6 (12V)
TU701 pin 16 (SIF) :
Is there a signal?
C928,C963 :
Is there a signal?
IC803 pin 20, 24, 23,
27 : Is there a signal?
IC903,904 pin 7 :
Is there a signal?
NO
NO YES
NO
YES
YES
Only “P Model”
Only “Without SCART Model”
YES
YES
CHECK IC 803 pin 2,4 (VCC) : 12V
Pin 32,33 (SCL/SDA) :
CHECK
IC1302 Reset Circuit
NO
IC1101 DEFECT
NO
CHECK IC901 power
3.3V & 1.8V
IC901 DEFECT
Replace IC803
IC901 pin 34
Or R999 (reset”H”) :
YES
X901 (24.576MHz)
clock oscillated ?
YES
R902,R913,R997 :
R962,R978 (I2C) :
YES
YES YES
C901 pin 173 & R903 :
Is there a signal ?
When playing DISC,
no Audio output
7. NO TUNER AUDIO OUTPUT
3-15
8. NO EXTERNAL AUDIO INPUT
Replace IC803
C979, C980
Is there a signal?
CHECK Cable connections & Input signal.
IC803 pin 20, 24, 23,
27 :Is there a signal?
CHECK IC 803 pin 2,4 (VCC) : 12V
Pin 32, 33 (SCL/SDA) :
NO
NO
NONO< AV3 > < A V1/AV2 > < A V4 >
NO
NO
YES
IC803 pin 10, 16 :
Is there a signal?
YES
YES
YES
YES
YES
YES YES
C976,C977 :
Is there a signal?
YES
NO
IC901 pin 34
Or R999 (reset“H”) :
X901 (24.576MHz)
clock oscillated ?
C901 pin 173 or
R903 :
CHECK IC901 power
3.3V & 1.8V
When playing DISC,
no Audio output
IC901 DEFECT
CHECK
IC1302 Reset Circuit
R902,R913,R997 :
R962,R978 (I2C) :
IC1101 DEFECT
CHECK Cable connections & Input signal.
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