LG RH178H, RH188H, RH1999 Schematic

HDD/DVD RECORDER

SERVICE MANUAL

MODELS : RH178H/188H/1999H/HDR688X

MODELS : RH178H/188H/1999H/HDR688XSERVICE MANUAL

P/NO : AFN30086042 APRIL,2006

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.

CONTENTS

SECTION 1 . . . .SUMMARY

SECTION 2 . . . .CABINET & MAIN CHASSIS

SECTION 3 . . . .ELECTRICAL

SECTION 4 . . . .RS-01A LOADER PART

SECTION 5 . . . .REPLACEMENT PARTS LIST

1-2

SECTION 1

SUMMARY

CONTENTS

NEW FUNCTIONS OF HDD/DVD-RECORDER................................................................. 1-2

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS.............. 1-3

SERVICING PRECAUTIONS .................................................................................................. 1-4

• General Servicing Precautions

• Insulation Checking Prodedure

• Electrostatically Sensitive Devices

SERVICE INFORMATION FOR EEPROM IC SETTING ................................................. 1-5

SPECIFICATIONS ...................................................................................................................... 1-6

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 AUDIOVISUALSIGNALS FROM HDD-DVD RECORDER TO TELEVISION SETS, OTHER VIDEO DISPLAYS. HDMI CAN CARRY HIGH QUALITY MULTI-CHANNEL AUDIO DATAAND 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 CHANNELAND IS USED BY THE

RECEIVER AS A FREQUENCY REFERENCE FOR DATA RECOVERY ON THE THREE TMDS DATA CHANNELS.

VIDEO DATAIS CARRIED AS ASERIES 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 FORMATS. IN ALLTHREE CASES, UP TP 24 BITS PER

PIXEL CAN BE TRANSFERRED.

FAST DUBBING

DUBBING MEANS ACOPYING 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 RECORDING 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(DVDRW) TO HDD , AND ONLY NORMAL DUBBING AVAILABLE WHEN COPYING VIDEO MODE DISC

(DVD+R/RW, DVD-R) TO HDD

1-4

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.

1-5

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.

Remembers 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) 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 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 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.)

1-6

SERVICE INFORMATION FOR EEPROM IC SETTING

MICOM START

EEPROM ID CHECK 2 BYTE(B3,248,249)

MODEL NAME HEX BINARY RH.S OPT1 00 00000000

OPT2 00 00000000 OPT3 00 00000000 OPT4 00 00000000 (reserved) OPT5 00 00000000 (reserved) OPT6 00 00000000 (reserved) OPT7 00 00000000 (reserved) OPT8 00 00000000 (reserved)

WRITE:OK EXIT:MENU,MP MOVE:< > EDIT : __ OPTION WRITE : OK (OK KEY IN) MASK : R00 , EEP : R00 , (D10) (Each mask ,eeprom, It shows a development release version.)

DETECT NEW EEPROM (OPTION EDIT SCREEN)

*** EEPROM INITIAL ***

- SETUP is displayed in the field if pressing the Front ch- & ch+ Key with the Remocon 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.

OPTION DATA READ

5TIME & COMPARE

MICOM NORMAL

OPERATION START

Press the "CLEAR" key on the Remote controller and the "CH - " key one the Front Panel the same time, then it goes in to Tracking initial mode.

OPTION CONFIRMATION MODE

ID OK?

Yes

1-7

SPECIFICATIONS

• GENERAL

Power requirements AC 200-240V, 50/60 Hz Power consumption 35W Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without foot 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 HDD (80GB), DVD-ReWritable, DVD-Recordable, DVD+ReWritable,

DVD+Recordable, DVD+Recordable (Double Layer)

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)

HDD (80GB): Approx. 20 hours (XP mode), 40 hours (SP mode),

74 hours (LP mode), 111 hours (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

AERIAL IN Aerial 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

• 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

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

Audio output (digital audio) 0.5 V (p-p), 75 Ω, RCA jack x 1 Audio output (optical audio) 3 V (p-p), 75 Ω, 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

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

BCD

OPTIONAL PART

*463/462

300

250

A47

*463/462

468

CABLE3

471

SMPS

A54

OPTIONAL PART

HDMI MODEL ONLY

468

A54A

HDMI

BOARD

253

468

A46

MAIN

BOARD

A55

251

463

251

463

A60

468

A52

I/O BOARD

273

OPTIONAL

PART

272

467

CABLE5

320

268

274

267

264

265

A44

465

261

465

261

260

262

261

CABLE11

468

A53

CABLE10

A26

104

101

103

468

410

MEMORY

275

OPTIONAL

PART

A56

452

CABLE2

275

CABLE1

275

A50

A43

280

2-3

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

A005

1019

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

OPTIONAL PART

821

SCART CABLE

Cable, Coaxial

806

808 Battery

Remote Control

900

Instruction Ass'y

801

Packing

803

Box

802

811

812

822

Plug Ass'y, 1Way

Plug Ass'y, 2Way

FLAT CABLE

Bag

804

803

Packing

3-1

SECTION 3

ELECTRICAL

CONTENTS

HDR 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 ..............................................................................................................................................3-7

4. DISC NOT RECOGNIZED.............................................................................................................................................3-7

5. WHEN PLAYING DISC, NO AUDIO OUTPUT ..............................................................................................................3-8

6. NO OPTICAL / DIGITAL OUTPUT.................................................................................................................................3-9

7. NO TUNER AUDIO OUTPUT....................................................................................................... ...............................3-10

8. NO EXTERNAL INPUT AUDIO....................................................................................................................................3-11

9. NO RGB / COMPONENT VIDEO SIGNAL WHEN PLAY DISC..................................................................................3-12

10. NO COMPOSITE / S-VIDEO SIGNAL WHEN PLAY DISC.......................................................................................3-12

11. NO TV, EXTERNAL INPUT VIDEO SIGNAL ............................................................................................................3-13

12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL...............................................................................................3-14

BLOCK DIAGRAMS............................................................................................................................................................3-16

1. OVERALL BLOCK DIAGRAM .....................................................................................................................................3-15

2. LAYOUT CONNECTION BLOCK DIAGRAM_1 ..........................................................................................................3-17

3. LAYOUT CONNECTION BLOCK DIAGRAM_2 ..........................................................................................................3-19

4. SMPS BLOCK DIAGRAM............................................................................................................................................3-21

5. POWER : MAIN BOARD BLOCK DIAGRAM..............................................................................................................3-23

6. POWER : I/O BOARD BLOCK DIAGRAM ..................................................................................................................3-25

7. IN/OUT BLOCK DIAGRAM ( SCART MODEL ONLY )................................................................................................3-27

8. VIDEO BLOCK DIAGRAM...........................................................................................................................................3-29

9. VIDEO S/W PATH BLOCK DIAGRAM................................................................................................ .........................3-31

10. AUDIO BLOCK DIAGRAM.........................................................................................................................................3-33

11. AUDIO S/W PATH BLOCK DIAGRAM.......................................................................................................................3-35

12. FLD / µ-COM / TUNER BLOCK DIAGRAM...............................................................................................................3-37

13. MAIN BLOCK DIAGRAM ( SCART MODEL ONLY ).................................................................................................3-39

14. TIMER BLOCK DIAGRAM.........................................................................................................................................3-41

CIRCUIT DIAGRAMS ..........................................................................................................................................................3-43

1. SMPS 1 CIRCUIT DIAGRAM......................................................................................................................................3-43

2. SMPS 2 CIRCUIT DIAGRAM......................................................................................................................................3-45

3. MPEG CIRCUIT DIAGRAM.........................................................................................................................................3-47

4. FLASH/DDR CIRCUIT DIAGRAM...............................................................................................................................3-49

5. RESET & 1394 & JEPG CIRCUIT DIAGRAM.............................................................................................................3-51

6. ATAPI & MEMORY CARD CIRCUIT DIAGRAM ..........................................................................................................3-53

7. I/O, µ-COM CIRCUIT DIAGRAM.................................................................................................................................3-55

8. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM...................................................................................................3-57

9. DECODER CIRCUIT DIAGRAM..................................................................................................................................3-59

10. TIMER CIRCUIT DIAGRAM ......................................................................................................................................3-61

•

WAVEFORMS ...................................................................................................................................................................3-63

• CIRCUIT VOLTAGE CHART ............................................................................................................................................3-65

PRINTED CIRCUIT DIAGRAMS.........................................................................................................................................3-71

1. MAIN P.C.BOARD .............................................................................................................. ..........................................3-71

2. I/O P.C.BOARD............................................................................................................................................................3-73

3. POWER P.C.BOARD...................................................................................................................................................3-77

4. TIMER1 P.C.BOARD ...................................................................................................................................................3-79

5. TIMER2 P.C.BOARD ...................................................................................................................................................3-81

6. HDMI P.C.BOARD .......................................................................................................................................................3-83

3-2

ELECTRICAL TROUBLESHOOTING GUIDE

HDR PART

Replace the BD101

Replace the F101 (Use the same Fuse)

No 5.3VA

Is the F101 Normal?

Is the TH01 Normal?

Is the Vcc (10V - 17V) supplied to IC101 Pin6?

Is the BD101 Normal?

Is the D128 normal?

Is there about 2.5V at the IC103 Pin1?

Is the D121 normal?

Is the D122 Normal?

Is the D125 Normal?

Is the D124 Normal?

Is the D127 Normal?

Is the D126 Normal?

YES

YESYES

YES

Replace the TH101

Is the D102 normal?

Check or Replace the D102

Replace the D128

Replace the IC103

Replace the D121

Replace the D122

Replace the D125

Replace the D124

Replace the D127

Replace the D126

1. POWER SUPPLY ON SMPS BOARD

Power Line of I/O PCB is short

3-3

No 5V for HDD & DVD Drive

Check D125 and Replace

Is there about 5.5V at the IC156 pin1?

Is there about 4V ~ 5V at the IC156 pin 4?

Check the ‘PWR CTL “H”’ signal from µ-COM

YES

Check the IC156 and Replace

YES

No 12V for HDD & DVD Drive

Check D124 and Replace

Check the ‘PWR CTL “H”’ signal from µ-COM

Is there about 13.5V at the IC155 pin1?

Is there about 4V ~ 5V at the IC155 pin 4?

Check the IC155 and Replace

YES

3-4

2. POWER SUPPLY ON I/O BOARD

No 33VT

Is the VCC (33V) supplied to Q161 Emitor?

Check D126 on SMPS Board and Replace

Is there about 0V at Q152 Collector?

Check Q161 and Replace

Check the ‘TIMER H’ signal from µ-COM

Is there about 5V at R180 and 0.7V at Q152 Base?

Check Q152 and Replace

YES

No 5VT

Check 5.3VA on SMPS Board

Check Q155 and Replace

Is the VCC (5.3V) supplied to Q155 Emitor?

Is there about 0V at D152 and Q152 Collector?

Is there about 5V at R180 and 0.7V at Q152 Base?

Check the ‘TIMER H’ signal from µ-COM

YES

Check Q152 and Replace

YES

No 12V

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

Is the VCC (14V) supplied to Q164 Collector?

Is there about 12.5V at ZD151 & Q164 Base?

Is the VCC (33V) supplied to Q162 Emitor?

YES

Is there about 0V at Q162 Base?

YES

Is there about 5V at R171 and 0.7V at Q156 Base?

YES

Check Q156 and Replace

YES

No 5.2V

Check 5.3VA on SMPS Board

Is the VCC (5.3V) supplied to Q151 Emitor?

Is there about 0V at D153 and Q156 Collector?

NO NO

Check Q151 and Replace

Check the ‘PWR CTL H’ signal from µ-COM

YES

Is there about 5V at R171 and 0.7V at Q156 Base?

Check Q156 and Replace

YES

3-5

No SW_5.3VA

Is the VCC (5.3V) supplied to Q158 Emitor?

Check 5.3VA on SMPS Board

Is there about 0V at R179 and R156?

Check the ‘STANBY H’signal from µ-COM

Check Q158 and Replace

YES

No 3.3V

Check or Replace the D127

Check the ‘PWR CTL “H”’signal from µ-com

Is there about 3.8V at the IC152 pin1?

Is there about 4V~ 5V at the IC152 pin4?

Check the IC152 and Replace

YES

No 5.0VD

Check 5.3VA on SMPS Board

Check the ‘PWR CTL H’ signal from µ-COM

Is there about 5.3V at the IC153 pin 1?

Is there about 4V ~ 5V at the IC153 pin 4?

Check the IC153 and Replace

YES

No 2.5V

Check D154 and D127 on SMPS Board

Is there about 3V ~ 3.8V at the IC151 pin 1?

Is there about 4V ~ 5V at the IC151 pin 4?

NO NO

Check the ‘PWR CTL H’ signal from µ-COM

NO NO

YES

Check the IC151 and Replace

YES

3-6

No SW_FD(+)

Check D121 on SMPS Board and Replace

Check Q163 and Replace

Is the VCC (FD+) supplied to Q163 Collector ?

Is there about 5.3V at R184 and Q153 Collector ?

Is the VCC (5.3V) supplied to Q153 Emitor ?

Check 5.3VA on SMPS Board

Check the ‘STANBY H’ signal from µ-COM

YES

Is there about 0V at Q153 Base ?

YES

Check Q153 and Replace

YES

No SW_12VG

Check D124 on SMPS Board and Replace

Check Q165 and Replace

Is the VCC (14V) supplied to Q165 Collector?

Is there about 12.5V at ZD152 & Q165 Base?

Is the VCC (33V) supplied to Q160 Emitor?

Check D126 on SMPS Board and Replace

Check Q160 and Replace

Check SW_5.3VA

YES

Is there about 0V at Q160 Base?

YES

Is there about 5.3V at Q166 Base?

YES

Check Q166 and Replace

YES

No 1.25V

Check D155 and

2.5V power supply

Check Q159 and Replace

Is the VCC (2V) supplied to Q154 Emitor ?

Is there about 2V ~ 2.5V at Q154 Base and IC154 pin 4?

Is the VCC (3.3V) supplied IC154 pin 1,2,8 ?

Check 3.3V power supply

YES

Check IC154 and Replace

YES

No 1.8V

Check 3.3V power supply

Check Q159 and Replace

Is the VCC (3.3V) supplied to Q159 Emitor And IC154 pin 1,2,8 ?

Is there about 3V ~ 3.3V at Q159 Base and IC154 pin 3 ?

Check IC154 and Replace

YES

3-7

“Please wait” displayed

Continue at Power On

Check PVM02 pin 13 IC 701 pin 19 (R714)

IC1306 pin 5 : ? (/HOST-RESET)

X1101 : Clock oscillated? (13.5MHz)

Replace X1101

Check IC1201 (Flash Memory) & IC1101

IC1101 DEFECT

YES

R11A9 : ? IC1201 pin 32 : ?

YES

R1173, R1174 : ?

YES

3. SYSTEM CIRCUIT PART

Check Driver Power? 5V,12V

Change MEDIA TEST

Check A TAPI Interface PLL1604 & PML07

Check SMPS

YES

4. DISC NOT RECOGNIZED

3-8

CHECK IC803 pin 2,4 (VCC):12V Pin 32,33 (SCL/SDA) :

IC808 pin 14,19 (Z_mute_R/L) : IC701 pin 58 (A_mute_L) :

CHECK IC808 pin 1,2,3,4 : Pin 10 (Reset “H”) Pin 7,8 (I2C) :

5. WHEN PLAYING DISC, NO AUDIO OUTPUT

CHECK IC808 pin 17 (12V) pin 5,11,20 (3.3V)

Replace IC808

YES

IC808 pin 15,18(Audio_out R/L): Is there a signal?

IC801 pin 1,7 Is there a signal?

IC803 pin 21,22,25,26 : Is there a signal?

CHECK Q801, Q802, Q803, Q805, Q806, Q807, Q808

CHECK IC801 pin 8 (12V)

Replace IC801

Replace IC803

IC101

DEFECT

L822, L823 : Is there a signal?

YES

YES YES

Only “Without SCART model”

L806, L826, L825, L810 : Is there a signal?

CHECK Cable connections & TV Audio mute.

3-9

R1107 : Is there a signal ?

CHECK PVM01 pin 1 (SPDIF_OUT) :

C856 : Is there a signal ?

BD817 : Is there a signal ?

CHECK JK802 & RCA cable connection

YES

R851 : Is there a signal?

CHECK JK803 pin 2 (5.2V)

CHECK JK803 & Optic cable connection

6. NO OPTICAL / DIGITAL OUTPUT

3-10

7. NO TUNER AUDIO OUTPUT

TU701 pin 16 (SIF) : Is there a signal?

C928,C963 : Is there a signal?

IC903,904 pin 7 : Is there a signal?

Replace IC803

CHECK IC903,904 pin 6 (12V)

YES

IC803 pin 20, 24, 23, 27 Is there a signal?

YES

IC901 pin 34 Or R999 (reset “H”) :

YES

X901 (24.576MHz) clock oscillated ?

R902,R913,R997 : R962,R978 (I2C) :

YES

C901 pin 173 & R903 : Is there a signal ?

When playing DISC, no Audio output

YES

YES YES

CHECK IC 803 pin 2,4 (VCC) : 12V Pin 32,33 (SCL/SDA) :

CHECK IC1302 Reset Circuit

IC1101 DEFECT

CHECK IC901 power 3.3V & 1.8V

IC901 DEFECT

YES

A B

Only “P Model”

Only “Without SCART Model”

3-11

8. NO EXTERNAL INPUT AUDIO

CHECK IC 803 pin 2,4 (VCC):12V Pin 32,33 (SCL/SDA):

CHECK Cable connections & Input signal.

Replace IC803

CHECK IC1302 Reset Circuit

YES

IC803 pin 20, 24, 23, 27 : Is there a signal?

CHECK Cable connections & Input signal.

C979, C980 : Is there a signal?

IC803 pin 10,16 : Is there a signal?

C976,C977 : Is there a signal?

< AV3 > < AV1/AV2 > < AV4 >

IC901 pin 34 Or R999 (reset”H”) :

X901 (24.576MHz) clock oscillated?

IC1101 DEFECT

CHECK IC901 power 3.3V & 1.8V

IC901 DEFECT

YES

R902,R913,R997 : R962,R978 (I2C) :

YES

C901 pin 173 or R903 :

YES

When playing DISC, no Audio output

YES

CHECK Cable connections & Input signal.

3-12

9. NO RGB / COMPONENT VIDEO SIGNAL WHEN PLAY DISC

R1153,R1154,R1155 : Is there a signal ?

PVM01 pin 2,6,10 : Is there a signal ?

IC802 pin 18,21,24 : Is there a signal?

CHECK SW801 status & SW801 pin 2 (RGB_SEL”H”)

CHECK IC802 pin 1,16 (5.2V)

Replace IC802

YES

10. NO COMPOSITE / S-VIDEO SIGNAL WHEN PLAY DISC

R1150,1151,1152 : Is there a signal ?

PVM01 pin 14, 18, 22 : Is there a signal?

IC802 pin 27,30,32: Is there a signal ?

CHECK RCA & S-Video cable connection

IC803 pin 29,30 : Is there a signal ?

CHECK IC802 pin 1, 16 (5.2V)

Replace IC802

YES

CHECK IC803 pin 2,4 (VCC) : 12V Pin 32,33 (SCL/SDA) :

YES

CHECK SCART cable connection

YES

Replace IC803

YES

A B

S-Video & RCA

SCART

3-13

11. NO TV, EXTERNAL INPUT VIDEO SIGNAL

CHECK Cable connection & Input signal

C859, C869, C871: Is there a signal?

IC 803 pin 21, 22, 25, 26 : Is there a signal?

C926 : Is there a signal?

CHECK IC 803 pin 2,4 (12V) Pin 32,33 (SCL/SDA)

Replace IC803

CHECK IC1302 Reset Circuit

CHECK IC901 power

3.3V & 1.8V

IC901 DEFECT

C917,C923,C934 : Is there a signal ?

C618 : Is there a signal ?

No video signal of external input AV3 (Rear RCA input)

No video signal of external input A V4(Composite/S-Video)

When Cable connecting Tuner and Rear SCART1,2 No TV video signal (AV1/2)

NO NO

YES

YESYES

YES

IC901 pin 34 Or R999 (reset”H”) :

X901 (24.576MHz) clock oscillated ?

YES

R962,R978 (I2C) :

IC901 pin 108 or R930 (VI_CLK) :

CHECK No RGB / Component / Composite / S-Video Signal when play DISC

YES

YES YES

3-14

12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL

Check DV_Jack connection

DV-mode switching ?

IC1401 power 3.3V

IC1401 pin 37 : “High” & X401 (24.576MHz) oscillated ?

IC1401 power 3.3V

Change to DV-mode. Using Remote Control

CHECK IC1302 Reset Circuit

YES

IC1401 pin 15 : “High” Is there a signal?

YES

IC1401 pin 1,27,28,29,30 : Is there a signal?

YES

IC1401 pin 2, 3 : Is there a signal?

YES

IC101 DEFECT

YES

CHECK DV Cable

YES

Replace IC1401

YES

3-15 3-16

BLOCK DIAGRAMS

1. OVERALL BLOCK DIAGRAM

I/O Board

V3_In

V4_In

S_In

V.S1/V.S2

A.S1/A.S2

Tuner

A3_In A4

_In

DV_In

Front Driv er IC

Front Timer Boa r

U-COM

AV_DEC

Decoder

SAA7137

PHY

TSB41AB1

MAIN Board

SIO_SPI_CS0

SIO_SPI_CLK SIO_SPI_MISO SIO_SPI_MOS

VIN_D[9:

AIN_D0

SPI I/O Interface

BIO_PHY_DATA[0:7]

DMN8653

VOUT_CVB

VOUT_Y/C

VOUT_Y/Pb/Pr_R/G/B

AOUT_IEC958

AOUT_DO

ATA_CONTROL

HD[0:15]

HA[1:5],[23:22]

I/O Board

S/PDIF

A_DAC:2ch

CS4351

Buffer

74LVC541

PHY

SAIN

ASTEL

CVBS_Out S_VIDEO_Out Y/Pb/Pr or R/

Optical & Digital Audio Out

Analog Audio Out

G/B

SOCKET

Memory Board

Latch

74LVT16373

HA[6:21]

Flash

64M-Bit

DVD DRIVE

HDD DRIVE

ATAPI1_DATA[0:15] ATAPI1 _...

ATAPI2_DATA[0:15] ATAPI2 _...

DDR SDRAM

512M-Bit

3-17 3-18

2. LAYOUT CONNECTION BLOCK DIAGRAM_1

SMPS Board

Junction B'd

Junction Bíd

ATAPI2

12V

FAN

P1D01

4pin

P104

12V

P1701

Junction Bíd

FD(+) FD(-)

-28VA 14VA 33VA

3.8VA

PWVS1

5.3VA PWR_CTL_H

ATAPI1

AV3/Comp /DigitalOptical

Scart1/

Scart2SVideo

INPUT / OUTPUT Board

HDMI

PHM01

30 pin

TUNER

PMH10

PMV01

40:250mm

PMV01

PVM01

I/O Board

Main Board

HDD

HARD DISC DRIVE

7-in-2 Memory

Key Board

DVD ± RW DRIVE

2pin

40pin

MAIN Board

PML07PML08

PMC09

Front J ack

TIMER Board

PMV02

PVM02

PMV04

PVM02

PMT05

16 pin

PMT01

3-19 3-20

3. LAYOUT CONNECTION BLOCK DIAGRAM_2

SMPS B'd

SMPS

Junction B'd

Junction Bíd

HDD

4pin

FAN

4pin

2pin

12pin

Junction B'd

Junction Bíd

430

I/O B'd

I/O Board

40pin

HDMI

30 pin

40:250mm

Main Board

X pin

: FFC

X pin

: B'd t

: B'd i

o B'd

: Harness

I/O B'd

30pin

275

Main B'd

30pin

12pin

7-in-2 Memory

KeY B'd

DVD ± RW DRIVER

2pin

40pin

Timer(FLD)

16 pin

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