LG HDR-1000, HDR-899 Service manual

DVB-T/HDD/DVD RECORDER

SERVICE MANUAL

MODELS : HDR899/1000

CAUTION

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

MODELS : HDR899/1000

SERVICE MANUAL

Website http://biz.lgservice.com

Internal Use Only

CONTENTS

SECTION 1.........SUMMARY

SECTION 2.........CABINET & MAIN CHASSIS

SECTION 3.........ELECTRICAL

SECTION 4.........RS-06A LOADER PART

SECTION 5.........REPLACEMENT PARTS LIST

LGE Internal Use Only

SECTION 1

SUMMARY

CONTENTS

NEW FUNCTIONS OF HDD/DVD RECORDER .................................................................................1-3

PRODUCT SAFETY SERVICING GUIDELINES FOR HDD/DVD RECORDER PRODUCTS

SERVICING PRECAUTIONS....................................................................................................................1-5

• GENERAL SERVICING PRECAUTIONS

• INSULATION CHECKING PRODEDURE

• ELECTROSTATICALLY SENSITIVE (ES) DEVICES

SERVICE INFORMATION FOR EEPROM IC SETTING..................................................................1-6

UPGRADE THE MAIN & LOADER PROGRAM.................................................................................1-7

SPECIFICATIONS ........................................................................................................................................1-8

..............1-4

LGE Internal Use Only

1-2

Only for training and service purposes

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.

1-3

LGE Internal Use Only

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

tomized 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.

: Do not attempt to modify this product in any way. Never perform cus-

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.

LGE Internal Use Only

1-4

Only for training and service purposes

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 electrolyt-

ic 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.

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.

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.

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.)

1-5

LGE Internal Use Only

SERVICE INFORMATION FOR EEPROM IC SETTING

1. Please the CLEAR button on the remocon together with OPEN the Front Panel about 6 sec.

The picture on OSD will be bellow ;

Model :

Disc Read Time

DVD 018 Sec OK CD 021 Sec NG

OP1 : 00 00000000 M : 10.013 OP2 : 00 00000000 E : FF(OR) OP3 : 00 00000000 OP4 : 00 00000000 OP5 : 00 00000000 OP6 : 00 00000000 OP7 : 00 00000000 Write : OK OP8 : 00 00000000 E x i t : MP OP9 : 00 00000000 Move : < > OPA : 00 00000000 E d i t :

2. To MOVE from OP! to another option. Please button on the remote control.

3. To CHANGE the Option Code. Please button on the remote control.

4. To APPLY the Option Code. After change the option press ENTER button on remote control.

5. To INITIALIZE the system. Press CLEAR button on the remotecontrol together with OPEN on the Front panel about 2sec.

6. To exit from the Option Code menu without Initialize the system. Just turn off the power and turn on again.

LGE Internal Use Only

1-6

Only for training and service purposes

UPGRADE THE MAIN & LOADER PROGRAM

1. MAKING UPGRADE DISC

1) Do Physical format as ISO9660 or JOLIET file system

2) Don’t care about the CD Volume label

3) Write RH300 B_E & LOADER file on Root

4) Write I_O file on Root

Note) You can’t write steps 3 and 4 on the same disc.

Use the different disc to write another step.

* OPTIONAL PARTS

1) B_E LG_RH300_UPDATE_PAL.ROM

2) LOADER DvdS617.rs6, Yas617.din

3) I_O io_micom_update.hex

2. UPGRADE FLASH (MAIN & LOADER) and I_O

1) Put Upgrde DISC on the Set

2) After Disc Reading, You can see below screen

3) Press ENTER (or OK) KEY. You can see both current and upgrade version.

4) Press PLAY KEY. Start upgrading.

5) After upgrading, Automatically open tray. Eject the Disc. Reboot the Set

6) Put I_O update disc and repeat 1) ~ 5)

* OPTIONAL PARTS

1) MAIN ONLY B_E UPGRADE

2) LOADER ONLY LOADER UPGRADE

3) ALL B_E & LOADER UPGRADE

1-7

LGE Internal Use Only

SPECIFICATIONS

• GENERAL

Power requirements AC 200-240V, 50/60 Hz Power consumption 30W Dimensions (approx.) 430 X 49 X 275mm (w x h x d) without foot Net weight (approx.) 4kg Operating temperature 5°C to 35°C Operating humidity 5% to 65% 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 (320GB), DVD-RW, DVD-R, DVD+RW,

DVD+R, DVD+R (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), 14 hours (MLP mode)

DVD+R DL (8.5GB): Approx. 3hours (XP mode),

3.8 hours (SP mode), 7.3 hours (LP mode),

9.1 hours (EP mode), 21 hours (MLP mode)

HDD (320GB, MPEG2 Recording):

Approx. 85 hours (XP mode), 165 hours (SP mode), 323 hours (LP mode), 456 hours (EP mode), 935 hours (MLP mode)

Video recording format

Sampling frequency 27MHz Compression format MPEG2 (VBR supported)

Audio recording format

Sampling frequency 48kHz Compression format Dolby Digital

• PLAYBACK

Frequency response DVD (PCM 48kHz): 8Hz to 22kHz,

CD: 8Hz to 20kHz

DVD (PCM 96kHz): 8Hz to 44kHz Signal-to-noise ratio More than 90dB (AUDIO OUT connector) Harmonic distortion Less than 0.02% (AUDIO OUT connector)

• INPUTS

Dynamic range More than 95dB (AUDIO OUT connector) ANTENNA IN Antenna input, 75ohms VIDEO IN 1.0 Vp-p 75ohms, sync negative, RCA jack x 1 / SCART x 2 AUDIO IN 2.0 Vrms more than 47kohms, RCA jack (L, R) x 1 / SCART x 2 DV IN 4 pin (IEEE 1394 standard) USB IN 4 pin (USB 1.1 standard)

• OUTPUTS

VIDEO OUT 1Vp-p 75Ω, sync negative, SCART x 2 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 19 pin (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) 2Vrms (1kHz, 0dB), 600Ω, RCA jack (L, R) x 2 / SCART x 2

LGE Internal Use Only

1-8

Only for training and service purposes

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

EXPLODED VIEWS .....................................................................................................................................2-2

1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2

2. DECK MECHANISM SECTION (RS-06A).................................................................................................2-3

3. PACKING ACCESSORY SECTION...........................................................................................................2-4

2-1

LGE Internal Use Only

EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION

462

OPTIONAL PARTS

8

250

46

A52

G

465 5 46

300

465

70 4

A44

261

0 26

462

A54

468

CABLE7

CABLE10

261

A26

104

A54A

HDMI

468

BOARD

253

468

I/O BOARD

261

320

A

8

1

46

26

A47

SMPS

468

C

8 46

G

E

A53

F

468

F

101

ABLE11 C

A

CABLE6

8 46

261

471

261

410

46 A

ABLE5 C

468

452

275

CABLE1

264

452

A43A

275

285

TIMER

CABLE2

286

73 2

4 27

50 A

D

281

E

MAIN

BOARD

D

B

452

B

452

KEY

A43

280

LGE Internal Use Only

2-2

Only for training and service purposes

2. DECK MECHANISM SECTION (RS-06A)

1431

1001

RS-06A(DR-11H)

1003

1026

1433

1016

1017

1002

1013

A001

A006

1041

1437

1432

1011

1020

1030

1033

1032

1025

1432

1434

1034

1437

1038

1432

1036

1015

1012

1019

1018

A

0

5

1047

1043

1045

2-3

1046

A46A

M

a

in

C

.

B

.

A

1439

LGE Internal Use Only

3. PACKING ACCESSORY SECTION

OPTIONAL PARTS

810 Accessory Assembly

808 Battery

900 Remote Control

Instruction Ass'y

801

803 Packing

806 RCA Plug(Black)

Plug Ass'y 1way

811

812

Plug Ass'y 2way

821 SCART Cable

804 Bag

803 Packing

Box

802

LGE Internal Use Only

2-4

Only for training and service purposes

SECTION 3

ELECTRICAL

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE

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

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

...........3-2

..........3-10

WAVEFORMS..........................................................3-18

1. SMPS BLOCK ..................................................3-18

2. SYSTEM BLOCK .............................................3-20

3. VIDEO BLOCK (COLOR BAR INPUT)...........3-23

4. AUDIO BLOCK (1kHz SINEWAVE INPUT)....3-24

5. SERIAL INTERFACE BLOCK

(BETWEEN MAIN AND I/O)............................3-25

6. TUNER BLOCK ................................................3-26

7. HDMI BLOCK ...................................................3-27

WIRING CONNECTION DIAGRAM...............3-28

1. WIRING CONNECTION DIAGRAM 1 ............3-28

2. WIRING CONNECTION DIAGRAM 2 ............3-29

3. WIRING CONNECTION DIAGRAM 3 ............3-30

BLOCK DIAGRAMS.............................................3-31

1. VERALL BLOCK DIAGRAM............................3-31

2. SMPS BLOCK DIAGRAM ...............................3-32

3. POWER MAIN BLOCK DIAGRAM .................3-33

4. POWER I/O BLOCK DIAGRAM......................3-34

5. A/V BLOCK DIAGRAM ....................................3-35

6. AUDIO OUT BLOCK DIAGRAM .....................3-36

7. HDMI BLOCK DIAGRAM ................................3-37

CIRCUIT DIAGRAMS...........................................3-39

1. SMPS 1 CIRCUIT DIAGRAM..........................3-39

2. SMPS 2 CIRCUIT DIAGRAM..........................3-41

3. MPEG CIRCUIT DIAGRAM.............................3-43

4. FLASH/DDR/DV CIRCUIT DIAGRAM............3-45

5. ATAPI, HDMI & USB CIRCUIT DIAGRAM.....3-47

6. I/O, µ-COM CIRCUIT DIAGRAM ....................3-49

7. DECODER & MIC CIRCUIT DIAGRAM.........3-51

8. SCART/RCA CIRCUIT DIAGRAM..................3-53

9. HDMI CIRCUIT DIAGRAM ..............................3-55

10. TIMER CIRCUIT DIAGRAM

11. KEY CIRCUIT DIAGRAM (8 & 9 TOOLS) ......3-59

(8 & 9 TOOLS)

...3-57

• CIRCUIT VOLTAGE CHART ....................3-61

PRINTED CIRCUIT BOARD DIAGRAMS...3-65

1. MAIN P.C.BOARD ............................................3-65

2. I/O P.C.BOARD.................................................3-67

3. POWER P.C.BOARD .......................................3-71

4. TIMER & KEY P.C.BOARD..............................3-73

5. HDMI P.C.BOARD ............................................3-75

3-1

LGE Internal Use Only

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

Is the BD101 normal? Replace the BD101

YES

Is the TH01 normal? Replace the TH01

YES

NO

Is the Vcc

(10V - 17V) supplied to

NO

Is the D102 normal?

IC101 Pin 6?

NO

YES

Is the D128 normal? Replace the D128

YES

Is there about 2.5V at the

NO

Check or replace the D102

Replace the IC103

IC103 Pin 1?

YES

Is the D121 normal? Replace the D121

YES

Is the D122 normal? Replace the D122

YES

Is the D125 normal? Replace the D125

YES

Is the D124 normal? Replace the D124

NO

Is the D127 normal?

Is the D126 normal? Replace the D126

Power line of I/O PCB is short

LGE Internal Use Only

YES

NO

3-2

Replace the D127

Only for training and service purposes

No 5V for HDD & DVD drive

YES

Is there about 5.5V at

the IC156 Pin 1?

YES

Is there about 4V ~ 5V at

the IC156 Pin 4?

YES

Check the IC156 and replace

No 12V for HDD & DVD drive

YES

Is there about 13.5V at

the IC155 Pin 1?

NO

Check D125 and replace

Check the “PWR CTL‘H’”

signal from µ-COM

Check D124 and replace

YES

Is there about 4V ~ 5V at

the IC155 Pin 4?

YES

Check the IC155 and replace

NO

3-3

Check the “PWR CTL ‘H’”

signal from µ-COM

LGE Internal Use Only

2. POWER SUPPLY ON I/O BOARD

No 12VT

YES

Is the Vcc (14V) supplied to

Q164 collector?

YES

Is there about 12.5V at

ZD151 & Q164 base?

YES

Is the Vcc (33V) supplied

to Q162 emiter?

YES

Is there about 0V at

Q162 base?

YES

NO

Check D124 on SMPS

board and replace

Check Q164 and replace

Check D126 on SMPS

board and replace

Check Q162 and replace

Is there about 5V at R170

and 0.7V at Q156 base?

Check Q156 and replace

LGE Internal Use Only

YES

NO

3-4

Check the “TIMER_H”

signal from µ-COM

Only for training and service purposes

No 5VT

YES

Is the Vcc (5.3V)

supplied to Q155 emiter?

YES

Is there about 0V

at D152 and

Q152 vollector?

YES

Is there about 5V

at R180 and 0.7V

at Q152 base?

YES

Check Q152 and replace

No 33VT

NO

Check 5.3VA on SMPS board

Check Q155 and replace

Check the “TIMER H”

signal from µ-COM

YES

Is the Vcc (33V)

supplied to Q161 emiter?

YES

Is there about 0V at

Q152 collector?

YES

Is there about 5V

at R180 and 0.7V

at Q152 base?

YES

Check Q152 and replace

NO

3-5

Check D126 on SMPS

board and replace

Check Q161 and replace

Check the “TIMER H”

signal from µ-COM

LGE Internal Use Only

No 5.0VD

YES

Is there about 5.3V at

the IC153 Pin 1?

YES

Is there about 4V ~ 5V at

the IC153 Pin 4?

YES

Check the IC153 and replace

No 2.5V

YES

Is there about 3V ~ 3.8V

at the IC151 Pin 1?

YES

Is there about 4V ~ 5V at

the IC151 Pin 4?

NO

Check 5.3VA on SMPS board

Check the “PWR CTL H”

signal from µ-COM

Check D154 and

D127 on SMPS board

Check the “PWR CTL H”

signal from µ-COM

Check the IC151 and replace

Is there about 3.8V at

the IC152 Pin 1?

Is there about 4V ~ 5V at

the IC152 Pin 4?

Check the IC152 and replace

LGE Internal Use Only

YES

No 3.3V

YES

NO

3-6

Check D127 on SMPS

board and replace

Check the “PWR CTL H”

signal from µ-COM

Only for training and service purposes

No SW_5.3VA

YES

Is the Vcc (5.3V)

supplied to Q158 emiter?

YES

Is there about 0V

at R179 and R156?

YES

Check Q158 and replace

No SW_FD(+)

YES

Is the Vcc (FD+) supplied

to Q163 collector?

YES

Is there about 5.3V at

R184 and Q153 collector?

NO

Check 5.3VA on SMPS board

Check the “STANBY H”

signal from µ-COM

Check D121 on SMPS

board and replace

Check Q163 and replace

YES

Is the VCC (5.3V)

supplied to Q153 emiter?

YES

Is there about 0V

at Q153 base?

YES

Check Q153 and replace

NO

3-7

Check 5.3VA on SMPS board

Check the “STANBY H”

signal from µ-COM

LGE Internal Use Only

No 1.8V

YES

Is the Vcc (3.3V)

supplied to Pin 3 IC155?

YES

There is 1,8V at IC155 Pin 2, 4

No 1.25V

YES

Is there about 5.3V at

the IC154 Pin 2?

YES

Is there about 4V ~ 5V at

the IC154 Pin 5?

NO

Check 3.3V power supply

IC155 defect

Check 5.3VA on SMPS board

Check the “PWR CTL H”

signal from µ-COM

Check the IC154 and replace

LGE Internal Use Only

YES

3-8

Only for training and service purposes

3. SYSTEM CIRCUIT PART

“Please wait” displayed

continue at power on

YES

IC1306 Pin 5 : ?

(/HOST-RESET)

YES

X1101 : Clock oscillated?

(13.5MHz)

YES

AR1105 Pin 3 : ?

IC1201 Pin 32 : ?

YES

R1173, R1174 : ?

4. DISC NOT RECOGNIZED

NO

Check PVM02 Pin 25 IC 701 Pin 19

Replace X1101

Check IC1201 (Flash memory) & IC1101

IC1101 defect

DISC not recognized

Check driver power?

5V, 12V

YES

Check ATAPI connector

YES

Check loader

NO

3-9

Check SMPS

Change MEDIA TEST

LGE Internal Use Only

5. WHEN PLAYING DISC, NO AUDIO OUTPUT

When playing DISC, no Audio output

IC904 Pin 14, 15 :

Is there a signal?

YES

NO NO

Check

IC904 Pin 5, 6,

7, 8 : .

Pin 3, 4 (Host CLK

& DATA) :

YES

IC1101 defect

Check

Q808, Q809, Q810, Q801

Check

IC902 Pin 8

(12VT)

YES

Replace IC902

NO

IC904 Pin 1, 16

(Z_MUTE R/L) : .

IC701 Pin 24

(A_MUTE_L) :

NO

IC902 Pin 1, 7 : Is there a signal

IC801 Pin 34, 35,

37, 38 : Is there

a signal?

YES

Check

IC904 Pin 11 (5VD)

YES

Replace IC904

Check

NO NO

IC801 Pin 14

(12V) Pin 30 (5, 3V)

Pin31, 32

(SCL, SDA) :

Replace

IC801

LGE Internal Use Only

L804, L808,

L820, L821 :

Is there a signal?

YES

Check

cable connections &

TV audio mute.

3-10

Only for training and service purposes

6. NO OPTICAL/DIGITAL OUTPUT

R1107 : .

Is there a signal?

PVM02 Pin 1 (SPDIF_OUT) : .

YES

Check

YES

R832 : .

Is there a signal?

YES YES

Check JK803 Pin 2 (5V)

YES YES

Check JK803 &

optical cable connection

C839 : .

Is there a signal?

BD803 : .

Is there a signal?

Check JK802 &

RCA cable connection

3-11

LGE Internal Use Only

7. NO TUNER AUDIO OUTPUT

TU701 Pin 16 (SIF) :

Is there a signal?

YES

IC901 Pin 106, 107

Is there a signal?

YES

IC801 Pin 40, 41 :

Is there a signal?

NO

Pin 30 (5, 3V) Pin 31, 32

Check

IC801 Pin 14 (12V)

(SCL, SDA) :

NO

Replace IC801

YES

IC901 Pin 98,

99, 100, 95 (Ain_D0,

AIN_SCLK, AIN_FSYNC,

AIN_MCLK) : Is there

a signal?

YES

When playing DISC,

no audio output

NO

YES

Check Pin 51/

RST_SAA7138

YES

X901 (24.576MHz)

oscillated?

YES

R906, R909

(SCL/SDA)

YES

IC901 defect

NO

Check IC1302

reset circuit

Change X901

Check IC901 power

3.3V & 1.8V

LGE Internal Use Only

3-12

Only for training and service purposes

8. NO EXTERNAL AUDIO INPUT

< AV3 > < AV1/AV2>

C9F3, C9F4 :

Is there a signal?

YES

NO

IC801 pin 2, 3, 5, 6 :

Check

cable connections

& input signal.

IC803 Pin 40, 41 :

AIN_SCLK, AIN_FSYNC,

Is there a signal?

YES

Is there a signal?

YES

IC901

Pin 98, 99,100,

95 (Ain_D0,

AIN_MCLK) :

Is there

a signal?

IC801 Pin 14 (12V)

NO

Pin 30 (5, 3V)

Pin 31, 32

(SCL, SDA) : .

NO

Check Pin 51/

RST_SAA7138

Check

NO

Replace

IC801

Check

IC1302 reset

circuit

YES

When playing DISC,

no audio output

YES

X901

(24.576MHz)

oscillated?

YES

R906, R909

(SCL/SDA)

YES

IC901 defect

NO

Change X901

Check

IC901 power

3.3V & 1.8V

3-13

LGE Internal Use Only

9. NO RGB/COMPONENT VIDEO SIGNAL WHEN PLAY DISC

R1160, R1161, R1162 :

Is there a signal?

YES

PVM01 Pin 13, 14, 16 :

Is there a signal?

YES

IC801 Pin 24, 25, 26 :

Is there a signal ?

YES

NO

Check IC801 Pin 14 (12V)

Pin 30 (5, 3V)

Pin 31, 32 (SCL, SDA) : .

Check condition

RGB_Sel_Out & Ypbpr_Mute_L

YES

Check cable connection Replace IC801

YES

LGE Internal Use Only

3-14

Only for training and service purposes

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

R1157, 1158, 1159 :

Is there a signal?

YES

PVM01 Pin 18, 19, 20 :

Is there a signal?

YES

IC801 Pin 27, 29, :

Is there a signal?

YES

Check S-VIDEO

cable connection

(S-VIDEO)

(SCART)

IC801 Pin 36, 39, :

Is there a signal?

YES

Check SCART

cable connection

NO

Check IC801 Pin 14 (12V)

Pin 30 (5, 3V) Pin 31, 32

(SCL, SDA) : .

YES

Replace IC801

3-15

LGE Internal Use Only

11. NO TV, EXTERNAL INPUT VIDEO SIGNAL

No TV, external input

video signal

No video

signal of external

input AV3

(Front

RCA input)

YES

R905 :

Is there a signal?

NO

Check

cable connection &

input signal

When cable

NO

connecting tuner

and rear SCART 1, 2

no TV video signal

(AV1/2)

C843, C863, C864 :

Is there a signal?

IC 801 Pin 42 :

Is there a signal?

YES

IC801 Pin 14

NO

(12V) Pin 30

(5, 3V) Pin 31,

32 (SCL, SDA)

Check

: .

YES

Replace

IC801

Check no RGB / Component / Composite /

LGE Internal Use Only

IC901 Pin (56, 57, 58,

61,62, 63, 64, 65) VIND2-VIND9

is there a signal .

YES

S-VIDEO signal when play DISC

3-16

Check Pin 51

/RST_SAA7138

YES

X901

(24.576MHz)

oscillated?

YES

R906,

R909 (SCL/SDA), L917

(VinCLK)

YES

NONO

NO

Check

IC1302 reset

circuit

Change

X901

Check

IC901 power

3.3V & 1.8V

IC901 defect

Only for training and service purposes

12. NO DV (IEEE1394) INPUT (VIDEO/AUDIO) SIGNAL

Check DV_Jack connection

YES

DV-mode switching?

YES

IC1401 power 3.3V

YES

IC1401 Pin 37 : “High”

& X401 (24.576MHz)

oscillated ?

YES

IC1401 pin 15 : “High” .

Is there a signal?

YES

NO

Change to DV-mode.

using remote control

Check power 3.3V on I/O board

Check IC1302 reset circuit

Check DV cable

IC1401

Pin 1, 27, 28, 29, 30 :

Is there a signal?

YES

IC1401 Pin 2, 3 :

Is there a signal?

NO

IC101 defect

NO

YES

3-17

Replace IC1401

LGE Internal Use Only

1. SMPS BLOCK

1

< Switching waveform of IC101,

when power is on >

WAVEFORMS

1

2

< Both ends waveform of D128,

when power is on (feedback 5.3VA) >

2

LGE Internal Use Only

3-18

Only for training and service purposes

3

< Both ends waveform of D124,

when power is on (12VA) >

4

< Both ends waveform of D125,

when power is on (5.5VA) >

3-19

LGE Internal Use Only

2. SYSTEM BLOCK

1

Frequency=13.5MHz

< Main Clock >

1

IC1101

2

< DDR RAM Clock >

LGE Internal Use Only

Frequency=198MHz

3-20

2

Only for training and service purposes

3

< DDR Bank Address >

4

5

6

5

4

< DDR RAS & CAS >

6

< DDR Write Enable >

3-21

3

LGE Internal Use Only

7

8

IC1101

7

LGE Internal Use Only

< 12C_SDA >

3-22

8

< 12C_SCL >

Only for training and service purposes

3. VIDEO BLOCK (COLOR BAR INPUT)

1

< CVBS_OUT >

2

1

2

3

< Y_OUT >

4

5

3

6

< C_OUT >

4

5

6

< G/Y_OUT >

< R/PR_OUT >

3-23

< B/PR_OUT >

LGE Internal Use Only

4. AUDIO BLOCK (1kHz SINEWAVE INPUT)

1

2

3

4

1

2

< AOUT_FSYNC >

< AOUT_SCLK >

3

4

LGE Internal Use Only

< AOUT_D0 >

3-24

< AOUT_MCLK >

Only for training and service purposes

5. SERIAL INTERFACE BLOCK (BETWEEN MAIN AND I/O)

1

2

3

1

< SIO_SPI_CLK >

2

< SIO_SPI_MOSI >

3

< SIO_SPI_MISO >

3-25

LGE Internal Use Only

6. TUNER BLOCK

1

IC901

1

< SIF >

LGE Internal Use Only

3-26

Only for training and service purposes

7. HDMI BLOCK

1

576i/576p mode : 27MHz 720p/1080i mode : 74.25MHz

< VOUT_CLK >

2

< VOUT_CLK >

3-27

< VOUT_CLK >

2

IC1701

LGE Internal Use Only

WIRING CONNECTION DIAGRAM

USB

V_IN

//

A_IN

DV

1. WIRING CONNECTION DIAGRAM 1

: FFC

X pin

o Bíd

: Bíd t

X pin

n

: Harness

: Bíd i

X pin

Half Nim

TUNER

Optical

S Video

Coaxial

Composite

SCART1/2

Junction Bíd

5pin

4pin

30pin

I/O BOARD

4pin

30pin

40pin

5pin

40pin

HDD

A_IN

//

V_IN

USB

DV

Timer

HDMI

40pin

16pin

SMPS

4pin

40pin

30pin

40pin

4pin

MAIN BíD

40pin

30pin(New)

RS-03

LOADER

Option BíD

KARAOKE

30pin

RW DRIVER

±

DVD

2pin

Sub timer

LGE Internal Use Only

3-28

Only for training and service purposes

2. WIRING CONNECTION DIAGRAM 2

3-29

LGE Internal Use Only

3. WIRING CONNECTION DIAGRAM 3

LGE Internal Use Only

3-30

Only for training and service purposes

BLOCK DIAGRAMS

PMV

PMV0

1. OVERALL BLOCK DIAGRAM

ARD

Timer BO

TPA+

TPA-

DV

+

TPB

K

JAC

-

TPB

NKON

PHY_LI

Q

S

PHY_LRE

PHY_LP

IC1401

TSB41AB

]

K

PHY_DATA[7:0]

PHY_CTL[1:0

PHY_CL

VOUT_CLK

1

PMH10

IC1101

DMN8653

VO_D[15:0]

SCL

SDA

LSI

AOUT_MCLKOUT

AOUT_IEC958

HDMI

RT2_RX

UA

UART2_TX UART2_RTS

UART2_CTS

SO

VIDEO_INT

INTERFACE

CEC

SIO_SPI_MOSI

SIO_SPI_CLK

SIO_SPI_CS0

SIO_SPI_MI

SPI_CS

SPI_CLK

T

UAR

PMX03

PC DEBUGGING

Register

SPI_MOSI

SPI_MISO

NEC

MICOM

IC701

R

I/O BOARD

/RST_PHY

/RST_TDA9984

/RST_SAA7138

IC901

SAA7138

AV DECODE

ARD

TTC-90

IC1201

FLASH

MX29LV640M

MEMORY

HD[15:0]

IC1301

HD[15:0]

HD[15:

HD[15:0]

0]

HA[21:6]

LATCH

Address

74LVT16373

E5_ALE

/RST_HOST

IC701 MICOM

/RST_E5/FLASH

IC1101

DMN8653

LSI

]

WEn

CS0

/E5_OE

/E5_

HA[5:1][23:22

/E5_L

/E5_OE

/E5_CS0

/E5_LWEn

HA[5:1][23:22]

VFD

FLD_CLK/ENA/DATA

F_CVBS/AL/AR

01

1

IC701

Display

RMC/KEY0/KEY1

NEC

5.3VA/SW5.3VA

-29A/FD+/FD-

PMV

PMV0

I/O BOARD

MICOM

CS3

/E5_

Timer BO

ARD

Timer BO

USB

JACK

USB_VCC

5VD

USB_D-

USB_D+

IC1501

USB_PWR_EN

TPS2052

USB_OCS

1:0]

1

#1

E5_SDRAM_DQ[15:0]

E5_SDRAM_DQM[

E5_SDRAM_CLK

E5_SDRAM_DQS[1:0]

E5_SDRAM_A[13:0]

E5_SDRAM_CLK

160CE-5

IC1202

HYB25D512

#

E5_SDRAM_WE#

E5_SDRAM_CAS

DDR

E

E5_SDRAM_RAS#E5_SDRAM_CLK

E5_SDRAM_BA[1:0]

SDRAM

G2995

IC1204

VREF

3-31

ATAPI1_D[15:0]

DY

/RST_ATAPI1

ATAPI1_DIOR_L

ATAPI1_IORDY

ATAPI1_ADD[4:0]

ATAPI1_DMARQ

ATAPI1_DIOW_L

ATAPI1_INTRQ

ATAPI1_DMAACK_L

INTERFACE

LOADER

PML07

ATAPI2_D[15:0]

/RST_ATAPI2

ATAPI2_DIOR_LATAPI2_IOR

ATAPI2_ADD[4:0]

ATAPI2_DMARQ

ATAPI2_DIOW_L

ATAPI2_INTRQ

ATAPI2_DMAACK_L

INTERFACE

HDD

PML08

LGE Internal Use Only

2. SMPS BLOCK DIAGRAM

-28V

FD(-)

FD(+)

P1701

14VA

5V

33VA

3.8VA

5.3VA PWR CTL

P1D01

12V

RECTIFIER &

R191,R131,ZD121

SMOOTHING BLOCK

D121,FR121,C120,R181,

RECTIFIER &

D122,C122,R122

SMOOTHING BLOCK

D125,C121

5V RECTIFIER &

SMOOTHING BLOCK

14V RECTIFIER &

T101

SMOOTHING BLOCK

3.8V RECTIFIER &

D124,C123,L123,C133

SMOOTHING BLOCK

D127,C124,L124,C134

33V RECTIFIER &

SMOOTHING BLOCK

D126,C126,R147,ZD122

101

D128D130,C125,

5.3V RECTIFIER & SMOOTHING BLOCK

C156

5V REG &

IC156,R156,

S/W BLOCK

BLOCK

FEEDBACK

L125,C135

IC102

PHOTO COUPLER

12V REG &

IC155,R155,

S/W BLOCK

C143

R141,R142,

R143,R144,

R145,R146,

IC103

ERROR AMP

C155

BD101

LGE Internal Use Only

BLOCK

SNUBER

C103

TH01

105,C106 C

D101,R104,

BLOCK

NOISE FILTER

R101,L101

V101,C101,C102,

BLOCK

DRIVE & S/W

3-32

ZD101,ZD103,

R109,C104,C107,

IC101,D102,R105,

C108,C109, BC

F101

FUSE

113 C

BR BL

Y CAP

H)

(BK)(W

!

C112

Y CAP

Only for training and service purposes

3. POWER MAIN BLOCK DIAGRAM

14VA

33VA

33VD

5.

3VA

5.

3VA

SW

_5

VA

3.

8VA

3.

3V

ST

PW

R_CTL_H

ST

LD

PW

R_CTL_H

PW

R_CTL_H

2.

5V

1.

8V

5V_HDD

12V_HDD

1.

5V

SW

_12VA

5.

0VD

_12VA

SW

33VD

ANDBY_H ST

.3VA _5

SW

R_CTL_H

PW

ANDBY_H ST

25V

1.

DCDC CONVERTOR

R_CTL_H

PW

O LD

3VA

5.

R_CTL_H

PW

8V

3V

1.

3.

5V

2.

0VD

5.

12V_HDD

5V_HDD

IO

TR Circuit

14VA

33VA

3VA

5.

3-33

8VA

3.

SMPS

LGE Internal Use Only

4. POWER I/O BLOCK DIAGRAM

g

8

VP

e

M

A

(

g

A

8

uner

P

NJ

-CO

uner

C+

.SW

od Buffer

For

M1510

dB AMP

0

17

udio DAC

713

itron i

Jack

O

LGE Internal Use Only

l n

ull UP

For Si

WR Fail

T6315

3-34

UNER

oost

Only for training and service purposes

5. A/V BLOCK DIAGRAM

FRONT

CK

I/O

B

_

T

_

A

M

MI

JA

CK

_

A

_

AT

A

_

A

HDMI

JACK

A

C

_12VA

C+_DET_H

EU2_V_OUT

EU2_A_OUT_L

EU2_A_OUT_R

RGB_SEL_OUT

R_IN

G_IN

B_IN

EU1_V_OUT

EU1_A_OUT_L

EU1_A_OUT_R

SCART_H

SCART 1 SCART 2 (Decorder)

R_SCART_OUT

G_SCART_OUT

B_SCART_OUT

GND

EUEUEU

t

R circu

EU2_V_IN

EU2_A_IN_L

I

GB

OU

GB

JIG_ENA

EU2_A_IN_R

EEPROM

IO MICO

I2C_CLK

I2C_DATA

TU_V_OUT

TU_R_A_OUT

T

ST

OST

T

R_IN

TU_L_A_OUT

MM176

EN

ST

G_IN

IN

I

LD

I2C_CL

I2C_DA

SAA7138

1

_RTN_0

RMC_IN

UNER

SIF

SECAM_AM

TR circuit

Y_OUT

Pr_OUT

Pb_OUT

Y_RCA_OUT

Pb_RCA_OUT

Pr_RCA_OUT

Y, C

COAXIAL

A_L_OUT

A_R_OUT

A_OUT_L

A_OUT_R

COAXIAL

OPTICAL

OARD B

MIC BOARD

I/O

CK

C JA MI

SW_V_OUT

SW_A_OUT_R

AOUT_SCLK

AOUT_FSYNC

AOUT_D0

AOUT_MCLK

HOST_DATA_INHOST_ENA

SPDIF_OUT

AOUT_MCLK

SW_A_OUT_L

AIN_MCLKOUT

AIN_FSYNC, AIN_SCLK

AIN_D0, VIN[2:9]

MV3

VO_D[0:15]

VOUT_CLK

I2C_SCL,

MAIN BOARD

I2C_SDA

HDMI_CEC

V_INT, V_CLK

AD9389_INT

SCL, SDA

USB+,

F_A_R_IN

USB-

F_A_L_IN

USB_5V

F_CVBS_IN

FLD

DRIVER

TIMER BOARD

JACK

TPA+,

TPA-

FRONT

TPB+,

TPB-

LGE Internal Use Only

Y, C

R,G,B

Y,Pb,Pr

Y, C

R,G,B

Y,Pb,Pr

CVBS_OUT

A_OUT_L

A_OUT_R

DAC

AUDIO

MIC_IN

JACK

HDMI BOARD

MIC_DET

HDMI

3-35

6. AUDIO OUT BLOCK DIAGRAM

904

AUDI

DAC

PCM178

PMV01

PVM

802

803

D.

di

o O

801

AV

S/

MM1763

(

SCART/RCA(A

)1)

(

)SCART(AV2)

MPEG

ENC/DEC

901

A.D

SAA713

MI

801

ALC

BA3308

903

OPAMP

VR801

10K

D2A

CN801

PVK0

Mono

NTSC

Option

TUNER

Circuit

V1 A

JK802

Coaxial RCA L /R Out

Optical

JK803

COM MI

SPDIF_OUT

A_MUTE

R

L /

Z_MUTE

MUTE

Circuit

O

IC904

AUDI

DAC

L / R_OUT

DAC

PCM178

R L /

A_OUT

IC902

0

LTER FI

OPAMP

IC901

IC801

T

TES

SUB DAC

AC

8

A.D

SAA713

W S/

AV

MM1763

MIC

R_OUT

L /

IC903

OPAMP

L / R out

SCART/RCA

AV2

L / R out

SCART

LGE Internal Use Only

ut

o O

Audi

MCLK

D.

MAIN I / O

I2S

S/PDIF)

IEC60958(

PVM

PMV01

AO_MCLK

AO_IEC958

01

AO_SCLK

AO_FSYNC

MPEG

ENC/DEC

3-36

AO_DO

D2A

ALC

IC801

BA3308

MIC

MIC_IN

PVK0

1

CN801

10K

VR801

MIC

Only for training and service purposes

7. HDMI BLOCK DIAGRAM

TXclkp

TXclkn

TX0p

RxSense

TMDS block

keys

OTP memory

HDCP block

TX0n

HDMI

Serializer

HDCP

TX1p

TX1n

TX2p

processing

TX2n

EXT_

swing

I2C DDC interface

Registers

Down-

4:4:4 to

sampler

(1)

4:2:2

I2C

slave

DDC

master

DSCL DSDA SCL SDA

packet

insertion

Data island

ACR

Info Frame

Audio content

HDMI packet insertion

FIFO

Audio

capture

CTS/N

processing

Audio processing

VHREF generatior

Null & ACP

PLL block

Clock

Management

converter

Color space

Up-

sampler

3x8 bit YCbCr/RGB 4:4:4

2x12 bit YCbCr 4:4:2

input

Video

Video processing

(1) Can be bypassed

(1)

RGB to YUV

YUV to RGB

To

4:4:4

4:2:2

Up-Scaler

2x12 bit

data

capture

YCbCr

WS

ACLK

AP[3..0]

MCLK

SPDIF

AUX

PCLK

3-37

VSYNC

HSYNC

DE

VA[7..0]

VB[7..0]

VC[7..0]

LGE Internal Use Only

MEMO

LGE Internal Use Only

3-38

Only for training and service purposes

CIRCUIT DIAGRAMS

A B C D E F G H I J K L M N O P Q R ST

RH300'S

No Power BD101,R101 is Defective

FD(+)FD(-) No Power D121 is Defective

-28VA No Power D122 is Defective

14VA No Power D125 is Defective

No Power D102 is Defective

3.8VA No Power D127 is Defective

5V No Power D125 is Defective

5.6VA No Power D123 is Defective

S/W Error IC101 is Defective

Switching Error IC102,IC103 are Defective

No Power F101 is Defective

5.3VA No Power D128 is Defective

5V No Power IC155 is Defective

5V No Power IC156 is Defective

1. SMPS 1 CIRCUIT DIAGRAM

IMPORTANT SAFETY NOTE :

WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC

FOR EASY IDENTIFICATION. THIS CIRCUIT DIAGRAM 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.

1. Shaded( ) parts are critical for safety. Replace only with specified part number.

2. Voltages are DC-measured with a digital voltmeter during Play mode.

3-39 3-40

LGE Internal Use Only

2. SMPS 2 CIRCUIT DIAGRAM

LGE Internal Use Only

3-41 3-42

Only for training and service purposes

3. MPEG CIRCUIT DIAGRAM

3-43 3-44

LGE Internal Use Only

4. FLASH/DDR/DV CIRCUIT DIAGRAM

LGE Internal Use Only

3-45 3-46

Only for training and service purposes

5. ATAPI, HDMI & USB CIRCUIT DIAGRAM

3-47 3-48

LGE Internal Use Only

6. I/O, µ-com CIRCUIT DIAGRAM

LGE Internal Use Only

3-49 3-50

Only for training and service purposes

7. DECODER & MIC CIRCUIT DIAGRAM

3-51 3-52

LGE Internal Use Only

8. SCART/RCA CIRCUIT DIAGRAM

LGE Internal Use Only

3-53 3-54

Only for training and service purposes

9. HDMI CIRCUIT DIAGRAM

3-55 3-56

LGE Internal Use Only

10. TIMER CIRCUIT DIAGRAM (8 & 9 TOOLS)

LGE Internal Use Only

3-57 3-58

Only for training and service purposes

11. KEY CIRCUIT DIAGRAM (8 & 9 TOOLS)

3-59 3-60

LGE Internal Use Only

• CIRCUIT VOLTAGE CHART

PIN EE MODE PB MODE

IC105 G5627

1 5.23V 5.23V 5.21V 2 0.8V 0.8V 0.8V 30V 0V 0V 4 0.8V 0.8V 0.8V 5 2.56V 2.56V 2.56V 60V 0V 0V 7 1.36V 1.36V 1.36V 8 5.23V 5.23V 5.21V

IC701 uPD78F0535GK

1 5.23V 5.23V 5.23V 20V 0V 0V 30V 0V 0V 4 5.22V 5.21V 5.21V 50V 0V 0V 6 5.24V 5.24V 5.23V 7 2.67V 2.66V 2.66V 8 2.38V 2.35V 2.34V

90V0V0.01V 10 3.21V 3.24V 3.21V 11 2.6V 2.65V 2.64V 12 2.53V 2.53V 2.53V 13 0V 0V 0V 14 0V 0V 0V 15 5.23V 5.24V 5.23V 16 5.24V 5.24V 5.24V 17 5.17V 5.16V 5.16V 18 5.17V 5.17V 5.17V 19 0V 0V 0V 20 3.67V 3.68V 3.69V 21 5.28V 5.27V 5.27V 22 0V 0V 0.01V 23 5.21V 5.2V 5.2V 24 5.21V 5.2V 5.2V 25 5.23V 5.22V 5.22V 26 0V 0.08V 0.08V 27 0V 0.09V 0.09V 28 5.23V 5.22V 5.22V 29 5.11V 5.1V 5.1V 30 0V 0V 0.01V 31 0V 0.02V 0.02V 32 0V 0.01V 0.01V 33 4.85V 4.83V 4.83V 34 0V 0.01V 0.02V 35 0V 0.01V 0.01V 36 0V 0.01V 0.01V 37 0V 0.01V 0.01V 38 4.93V 4.93V 4.93V 39 0V 0V 0.01V 40 0V 0.01V 0.01V 41 4.95V 4.94V 4.95V 42 5.21V 5.21V 5.21V 43 0V 0.01V 0.01V 44 0.74V 0.74V 0.75V 45 0V 0V 0V 46 5.17V 5.16V 5.16V 47 5.28V 5.28V 5.28V 48 0V 0V 0V 49 5.24V 5.27V 5.27V 50 2.64V 2.64V 2.64V 51 2.48V 2.47V 2.47V 52 2.65V 2.64V 2.64V 53 0V 0V 0V 54 0V 0V 0V 55 0V 0V 0V 56 0V 0V 0V

REC MODE

PIN EE MODE PB MODE

57 5.23V 5.23V 5.23V 58 5.07V 5.06V 5.27V 59 0V 0.01V 0V 60 0.4V 0.42V 0V 61 5.28V 5.27V 5.27V 62 5.19V 5.19V 5.19V 63 0V 0V 0V 64 0V 0V 0V

IC703 S524A60X51-SCTO

10V 0V 0V 20V 0V 0V 30V 0V 0V 40V 0V 0V 5 5.17V 5.17V 5.17V 6 5.16V 5.15V 5.16V 70V 0V 0V 8 5.28V 5.28V 5.28V

10V 0V 0V 2 3.09V 3.08V 3.08V 3 5.07V 5.06V 5.07V 40V 0V 0V 50V0V0.01V 60V0V0.01V 70V 0V 0V 8 5.28V 5.28V 5.27V

9 3.68V 3.68V 3.67V 10 0V 0V 0V 11 5.28V 5.28V 5.27V 12 3.22V 3.22V 3.22V 13 0V 0V 0V 14 5.28V 5.27V 5.28V

1 1.09V 1.09V 1.08V

2 6.93V 6.93V 6.94V

3 6.93V 6.93V 6.94V

4 1.09V 1.09V 1.08V

5 6.94V 6.93V 6.94V

6 6.94V 6.93V 6.94V

7 1.59V 1.59V 1.59V

8 6.93V 6.93V 6.93V

9 6.94V 6.93V 6.93V 10 1.09V 1.09V 1.09V 11 6.93V 6.93V 6.93V 12 6.94V 6.93V 6.93V 13 2.42V 2.42V 2.42V 14 12.06V 12.06V 12.08V 15 1.57V 1.67V 1.57V 16 0V 0V 0V 17 1.56V 1.66V 1.56V 18 2.45V 2.45V 2.45V 19 1.55V 1.64V 1.54V 20 9.97V 9.96V 9.96V 21 2.42V 2.42V 2.42V 22 2.42V 2.42V 2.42V 23 0V 0V 0V 24 0V 0V 0V 25 0V 0.01V 0V 26 2.08V 2.27V 2.08V 27 2.11V 2.31V 2.11V 28 2.12V 2.33V 2.12V 29 2.49V 2.49V 2.49V 30 5.1V 5.1V 5.09V 31 5.16V 5.16V 5.16V 32 5.17V 5.17V 5.17V 33 0V 0V 0V

IC704 74HCT125

IC801 MM1763

REC MODE

PIN EE MODE PB MODE

34 6.47V 6.48V 6.48V 35 6.47V 6.48V 6.47V 36 2.13V 2.34V 2.14V 37 6.48V 6.47V 6.47V 38 6.47V 6.47V 6.47V 39 2.13V 2.34V 2.13V 40 6.46V 6.46V 6.46V 41 6.46V 6.46V 6.46V 42 1.6V 1.61V 1.6V

REC MODE

IC901 SAA7138

10V0.01V 0V 20V 0V 0V 3 1.82V 1.82V 1.82V 40V 0V 0V 5 3.28V 3.28V 3.28V 60V 0V 0V 7 3.26V 3.26V 3.26V 8 0.57V 0.57V 0.57V

9 0.57V 0.57V 0.57V 10 0.57V 0.57V 0.57V 11 1 V 1V 1V 12 0V 0V 0V 13 3.26V 3.26V 3.26V 14 0.4V 0.41V 0.41V 15 0.56V 0.56V 0.56V 16 0.56V 0.56V 0.56V 17 0.99V 0.99V 0.99V 18 1.82V 1.82V 1.82V 19 0V 0V 0V 20 2.11V 2.11V 2.11V 21 3.26V 3.27V 3.27V 22 0V 0V 0V 23 0V 0V 0V 24 0V 0V 0V 25 0V 0V 0V 26 3.26V 3.26V 3.26V 27 0.44V 0.44V 0.44V 28 0.56V 0.56V 0.56V 29 0.89V 0.89V 0.89V 30 0.98V 0.98V 0.98V 31 0V 0V 0V 32 3.26V 3.26V 3.26V 33 1.01V 1.01V 1.01V 34 1.01V 1.01V 1.01V 35 0.57V 0.57V 0.58V 36 0.57V 0.57V 0.57V 37 0.57V 0.57V 0.57V 38 0.99V 1V 1V 39 0V 0V 0V 40 0V 0.01V 0V 41 3.28V 3.28V 3.28V 42 0V 0.01V 0.01V 43 3.28V 3.28V 3.28V 44 3.27V 3.2V 3.22V 45 3.15V 3.15V 3.14V 46 0V 0.01V 0.01V 47 0V 0.01V 0.01V 48 1.8V 1.8V 1.8V 49 0V 0V 0V 50 0.05V 0.05V 0.05V 51 3.28V 3.29V 3.27V 52 0V 0V 0V 53 0.88V 0.88V 0.88V 54 0.87V 0.87V 0.88V 55 1.83V 1.83V 1.83V 56 1.4V 1.4V 1.4V

PIN EE MODE PB MODE

57 1.34V 1.33V 1.32V 58 1.38V 1.37V 1.36V 59 3.29V 3.29V 3.28V 60 0V 0V 0V 61 1.57V 1.62V 1.61V 62 1.47V 1.47V 1.46V 63 1.23V 1.23V 1.22V 64 1.13V 1.14V 1.14V 65 1.35V 1.32V 1.32V 66 3.03V 3.03V 3.03V 67 3.29V 3.29V 3.29V 68 0V 0V 0V 69 1.8V 1.8V 1.8V 70 0V 0V 0V 71 2.74V 2.74V 2.74V 72 1.58V 1.5V 1.53V 73 1.4V 1.42V 1.42V 74 1.32V 1.33V 1.33V 75 1.37V 1.37V 1.36V 76 1.53V 1.53V 1.56V 77 3.29V 3.29V 3.29V 78 0V 0V 0V 79 1.48V 1.47V 1.48V 80 1.23V 1.24V 1.24V 81 1.14V 1.15V 1.15V 82 1.35V 1.34V 1.34V 83 0V 0V 0V 84 1.75V 1.75V 1.75V 85 3.29V 3.29V 3.29V 86 0V 0V 0V 87 3.29V 3.29V 3.29V 88 3.29V 3.29V 3.29V 89 3.29V 3.29V 3.29V 90 1.8V 1.8V 1.8V 91 0V 0V 0V 92 3.29V 3.29V 3.29V 93 3.29V 3.29V 3.29V 94 3.29V 3.29V 3.29V 95 1.66V 1.65V 1.65V 96 3.29V 3.29V 3.29V 97 0V 0V 0V 98 1.65V 1.64V 1.64V

99 1.66V 1.64V 1.65V 100 1.24V 1.24V 1.24V 101 0V 0V 0V 102 3.28V 3.28V 3.28V 103 0.47V 0.47V 0.47V 104 0.47V 0.47V 0.47V 105 0.47V 0.47V 0.47V 106 1.64V 1.64V 1.64V 107 1.64V 1.64V 1.64V 108 3.29V 3.29V 3.29V 109 1.64V 1.64V 1.64V 110 1.64V 1.64V 1.64V 111 0V 0V 0 V 112 0 V 0V 0V 113 1.63V 1.63V 1.63V 114 3.12V 3.12V 3.12V 115 0 V 0V 0V 116 3.29V 3.29V 3.29V 117 0 V 0V 0V 118 1.8V 1.8V 1.81V 119 0 V 0V 0V 120 1.62V 1.62V 1.62V 121 1.62V 1.62V 1.62V 122 1.62V 1.62V 1.62V

REC MODE

PIN EE MODE PB MODE

123 1.62V 1.62V 1.62V 124 1.62V 1.62V 1.62V 125 1.62V 1.62V 1.62V 126 1.62V 1.62V 1.62V 127 1.62V 1.62V 1.62V 128 1.62V 1.62V 1.62V

REC MODE

IC902 NJM4580

1 5.99V 6.02V 6.02V 26V6.02V 6.02V 3 5.98V 6V 6V 40V 0V 0V 5 5.98V 6.01V 6V 66V6.02V 6.02V 76V6.02V 6.02V 8 12.03V 12.08V 12.08V

IC904 PCM1780

1 4.8V 0.01V 4.87V 2 3.21V 3.23V 3.22V 3 3.08V 3.1V 3.08V 40V0.01V 0V 5 1.66V 1.67V 1.66V 6 1.63V 0.01V 1.63V 7 1.63V 1.64V 1.64V 8 1.63V 1.64V 1.63V

90V 0V 0V 10 0V 0V 0V 11 4.88V 4.88V 4.87V 12 0V 0V 0V 13 2.44V 2.44V 2.43V 14 2.38V 2.37V 2.37V 15 2.39V 2.38V 2.38V 16 4.88V 0V 4.87V

IC1701 TDA9983A

10V 0V 0V

20V 0V 0V

30V 0V 0V

40V 0V 0V

5 1.64V 1.64V 1.64V

6 1.66V 1.67V 1.66V

70V 0V 0V

80V 0V 0V

90V 0V 0V 10 0V 0V 0V 11 0 V 0V 0V 12 0V 0V 0V 13 3.27V 3.29V 3.27V 14 0V 0V 0V 15 0V 0V 0V 16 1.82V 1.81V 1.82V 17 3.27V 3.29V 3.27V 18 0V 0V 0V 19 4.92V 4.91V 4.92V 20 4.92V 4.91V 4.92V 21 0V 0V 0V 22 0V 0V 0V 23 3.27V 3.29V 3.27V 24 2V 2.01V 2V 25 0V 0V 0V 26 0V 0V 0V 27 0V 0V 0V 28 3.27V 3.29V 3.27V 29 0V 0V 0V 30 0V 0V 0V 31 0V 0V 0V 32 0V 0V 0V 33 0V 0V 0V

INFORMATION :

1. Voltage Check using W/S

2. EE Mode : Check with signal C2

3. Playback Mode : Check with DVD TEST DISC KDV-N chapter 2

4. Record Mode: Check with recording signal C2 using DVD -RW Brand : Victor, VR Mode MLP

PIN EE MODE PB MODE

34 3.27V 3.29V 3.27V 35 0V 0V 0V 36 0V 0V 0V 37 0V 0V 0V 38 3.27V 3.29V 3.27V 39 0V 0V 0V 40 0V 0V 0V 41 0V 0V 0V 42 3.26V 3.27V 3.26V 43 3.19V 3.13V 3.19V 44 3.16V 3.17V 3.16V 45 1.82V 1.81V 1.82V 46 0V 0V 0V 47 0V 0V 0V 48 3.27V 3.29V 3.27V 49 0V 0V 0V 50 0V 0V 0V 51 0V 0V 0V 52 0V 0V 0V 53 0V 0V 0V 54 0V 0V 0V 55 0V 0V 0V 56 0V 0V 0V 57 0V 0V 0V 58 0V 0V 0V 59 1.82V 1.81V 1.82V 60 0V 0V 0V 61 0V 0V 0V 62 0V 0V 0V 63 0V 0V 0V 64 0V 0V 0V 65 0V 0V 0V 66 1.62V 1.62V 1.62V 67 0V 0V 0V 68 0V 0V 0V 69 0V 0V 0V 70 0V 0V 0V 71 3.26V 3.29V 3.27V 72 0V 0V 0V 73 0V 0V 0V 74 1.82V 1.81V 1.82V 75 0V 0V 0V 76 0V 0V 0V 77 0V 0V 0V 78 0V 0V 0V 79 0V 0V 0V 80 0V 0V 0V

REC MODE

LGE Internal Use Only

3-61 3-62

Only for training and service purposes

NO

PIN NAME

EE PB REC

MODE MODE MODE

IC401 TSB41AB1 IEEE1394-DV Input

IC401

1 PHY_CLK 1.78 1.71 1.73 2 PHY_CTL0 0.01 0.01 0.01 3 PHY_CTL1 0.01 0.01 0.01 4 PHY_DATA0 0.01 0.01 0.01 5 PHY_DATA1 0.01 0.01 0.01 6 PHY_DATA2 0.01 0.01 0.01 7 PHY_DATA3 0.01 0.01 0.01 8 PHY_DATA4 0.01 0.01 0.01 9 PHY_DATA5 0.01 0.01 0.01

10 PHY_DATA6 0.01 0.01 0.01

11 PHY_DATA7 0.01 0.01 0.01 12 1394_PD 0.01 0.01 0.01 13 PHY_LPS 3.26 3.26 3.26 14 GND 0.01 0.01 15 PHY_LINKON 0.01 0.01 0.01 16 PC0 0.01 0.01 0.01 17 PC1 0.00 0.01 0.01 18 PC2 0.01 0.01 0.01 19 ISO 3.27 3.27 3.27 20 CPS 3.15 3.15 3.15 21 DVDD21 3.27 3.27 3.27 22 TESTM 3.27 3.27 3.27 23 SE 0.01 0.01 0.01 24 SM 0.01 0.01 0.01 25 AVDD25 3.27 3.27 3.27 26 GND 0.00 0.00 0.00 27 TPB- 1.77 1.56 1.56 28 TPB+ 1.77 1.77 1.77 29 TPA- 1.80 1.84 1.84 30 TPA+ 1.77 1.77 1.77 31 TPBIAS 1.82 1.82 1.82 32 AGND32 0.00 0.00 0.00 33 RO 0.00 0.10 0.01 34 RI 1.21 1.21 1.21 35 AVDD35 3.27 3.27 3.27 36 GND 0.00 0.00 0.00 37 /RST_PHY 3.26 3.26 3.26 38 FILTER0 0.01 0.01 0.01 39 FILTER1 1.28 1.29 1.29 40 PLLVDD 3.28 3.27 3.27 41 PLLGND 0.00 0.00 0.01 42 XI 1.50 1.50 1.50

PIN NAME

NO

43 XO 1.50 1.50 1.50 44 DVDD44 3.28 3.28 3.27 45 DVDD45 3.28 3.27 3.27 46 GND 0.00 0.00 0.01 47 GND 0.00 0.00 0.01 48 PHY_LREQ 0.01 0.01 0.01

IC1201 39FV6402B_SST_8MB FLASH MEMORY

1 HA16 0.09 0.08 0.08 2 HA15 0.09 0.08 0.08 3 HA14 0.09 0.08 0.08 4 HA13 0.09 0.08 0.08 5 HA12 0.09 0.08 0.08 6 HA11 0.09 0.08 0.08 7 HA10 0.09 0.08 0.08 8 HA9 0.09 0.08 0.08

9 HA20 0.09 0.08 0.08 10 HA21 0.09 0.08 0.08 11 /E5_LWEn 3.27 3.26 3.26 12 /RST_FLASH 3.25 3.23 3.23 13 HA22 0.02 0.00 0.00 14 HA19 3.25 3.23 3.23 15 HA18 (0.02) 0.00 0.00 16 HA8 (0.02) 0.08 0.08 17 HA18 0.10 0.08 0.08 18 HA8 0.10 3.28 0.08 19 HA7 0.10 0.08 0.08 20 HA6 0.10 0.08 0.08 21 HA5 3.27 3.26 3.26 22 HA4 3.27 3.26 3.26 23 HA3 3.27 3.26 3.26 24 HA2 3.27 3.26 3.26 25 HA1 3.27 3.26 3.26 26 /E5_CS0 3.27 3.26 3.26 27 VSS 0.02 0.00 0.00 28 /E5_OE 3.27 3.26 3.26 29 HD0 0.02 0.01 0.00 30 HD8 0.02 0.00 0.01 31 HD1 0.02 0.01 0.00 32 HD9 0.02 0.01 0.01 33 HD2 0.02 0.01 0.01 34 HD10 0.02 0.01 0.01 35 HD3 0.02 0.01 0.01 36 HD11 0.02 0.01 0.01

EE PB REC

MODE MODE MODE

IC201

NO

37 VCC 3.28 3.28 3.28 38 HD4 0.02 0.01 0.01 39 HD12 0.02 0.01 0.01 40 HD5 0.02 0.01 0.01 41 HD13 0.02 0.00 0.00 42 HD6 0.02 0.01 0.01 43 HD14 0.02 0.01 0.01 44 HD7 0.02 0.01 0.01 45 HD15 0.02 0.01 0.01 46 VSS 0.02 0.01 0.01 47 V33_STB 3.28 3.28 3.28 48 HA17 0.20 0.08 0.08

IC1202 K4H5116380-UCCC DDR SDRAM

1 VDD 2.43 2.43 2.41 2 SDRAM_DQ0 1.11 1.06 1.11 3 VDDQ 2.43 2.43 2.41 4 SDRAM_DQ1 1.13 1.08 1.12 5 SDRAM_DQ2 1.10 1.04 1.09 6 VSSQ 0.00 0.00 0.00 7 SDRAM_DQ3 1.12 1.08 1.15 8 SDRAM_DQ4 1.12 1.09 1.12

9 VDDQ 2.43 2.41 2.41 10 SDRAM_DQ5 1.09 1.20 1.00 11 SDRAM_DQ6 1.09 1.20 1.06 12 VSSQ 0.00 0.00 0.00 13 SDRAM_DQ7 1.05 1.20 0.98 14 NC 0.00 0.00 0.00 15 VDDQ 2.43 2.46 2.41 16 SDRAM_DQS0 1.20 1.23 1.19 17 SDRAM_A13 1.10 1.22 1.08 18 VDD 2.43 2.46 2.41 19 NC 0.00 0.00 0.00 20 SDRAM_DQM0 0.45 0.56 0.56 21 SDRAM_WE# 1.22 1.88 1.79 22 SDRAM_CAS# 1.74 1.85 1.66 23 SDRAM_RAS# 1.79 1.87 1.77 24 /CS 0.00 0.00 0.00 25 NC 0.00 0.00 0.00 26 SDRAM_BA0 1.22 1.24 1.20 27 SDRAM_BA1 1.22 1.24 1.21 28 SDRAM_A10 1.12 1.22 1.11 29 SDRAM_A0 1.13 1.22 1.11 30 SDRAM_A1 1.14 1.22 1.11

PIN NAME

EE PB REC

MODE MODE MODE

IC202

PIN NAME

NO

31 SDRAM_A2 1.14 1.22 1.12 32 SDRAM_A3 1.15 1.23 1.19 33 VDD 2.43 2.47 2.42 34 VSS 0.00 0.01 0.01 35 SDRAM_A4 1.20 1.23 1.19 36 SDRAM_A5 1.20 1.23 1.19 37 SDRAM_A6 1.21 1.23 1.19 38 SDRAM_A7 1.22 1.23 1.20 39 SDRAM_A8 1.21 1.23 1.19 40 SDRAM_A9 1.20 1.23 1.20 41 SDRAM_A11 1.14 1.22 1.10 42 SDRAM_A12 1.13 1.22 1.10 43 NC 0.00 0.00 0.00 44 SDRAM_CLKE 1.85 1.88 1.84 45 SDRAM_CLK1 1.24 1.26 1.23 46 SDRAM_CLK#1 1.14 1.21 1.18 47 SDRAM_DQM1 0.58 0.56 0.56 48 VSS 0.00 0.00 0.00 49 VREF 1.23 1.25 1.22 50 NC 0.00 0.00 0.00 51 SDRAM_DQS1 1.20 1.23 1.19 52 VSSQ 0.00 0.00 0.00 53 NC 0.00 0.01 0.00 54 SDRAM_DQ8 1.13 1.19 1.12 55 VDDQ 2.43 2.47 2.42 56 SDRAM_DQ9 1.13 1.19 1.11 57 SDRAM_DQ10 1.12 1.17 1.06 58 VSSQ 0.00 0.00 0.00 59 SDRAM_DQ11 1.11 1.19 1.17 60 SDRAM_DQ12 1.15 1.20 1.11 61 VDDQ 2.43 2.47 2.41 62 SDRAM_DQ13 1.07 1.20 1.07 63 SDRAM_DQ14 1.09 1.20 1.06 64 VSSQ 0.00 0.00 0.01 65 SDRAM_DQ15 1.07 1.21 1.03 66 VSS 0.00 0.00 0.00

IC1204 G2995

1NC 0.00 0.00 0.00 2 GND 0.00 0.00 0.00 3 VSENSE 1.20 1.24 1.20 4VREF 1.22 1.25 1.22 5 VDDQ 2.41 2.46 2.42 6AVIN 2.40 2.46 2.41

EE PB REC

MODE MODE MODE

IC204

NO

7 PVIN 2.40 2.47 2.42 8VTT 1.20 1.24 1.20

1 GND 0.03 0.03 0.03 2 HA6 0.09 0.09 0.09 3 HA7 0.09 0.09 0.09 4 GND 0.03 0.03 0.03 5 HA8 0.09 3.27 0.09 6 HA9 0.09 0.09 0.09 7 V33_STB 3.28 3.28 3.28 8 HA10 0.09 0.09 0.09

9 HA11 0.09 0.09 0.09 10 GND 0.03 0.03 0.03 11 HA12 0.09 0.09 0.09 12 HA13 0.09 0.09 0.09 13 HA14 0.09 0.09 0.09 14 HA15 0.09 0.09 0.09 15 GND 0.03 0.03 0.03 16 HA16 0.09 0.09 0.09 17 HA17 0.09 0.09 0.09 18 V33_STB 3.28 3.28 3.28 19 HA18 0.09 0.09 0.09 20 HA19 0.09 0.09 0.09 21 GND 0.03 0.03 0.03 22 HA20 0.09 0.09 0.09 23 HA21 0.09 0.09 0.09 24 GND 0.03 0.00 0.00 25 E5_ALE 0.03 0.03 0.03 26 HD15 0.03 0.03 0.03 27 HD14 0.03 0.03 0.03 28 GND 0.03 0.03 0.03 29 HD13 0.03 0.03 0.03 30 HD12 0.03 0.03 0.03 31 V33_STB 3.28 3.28 3.28 32 HD11 0.03 0.03 0.03 33 HD10 0.03 0.03 0.03 34 GND 0.03 0.03 0.03 35 HD9 0.03 0.03 0.03 36 HD8 0.03 0.03 0.03 37 HD7 0.03 0.03 0.03 38 HD6 0.03 0.03 0.03 39 GND 0.03 0.03 0.03 40 HD5 0.03 0.03 0.03

PIN NAME

EE PB REC

MODE MODE MODE

IC1301 74LVT16373ADGG

IC1301

PIN NAME

NO

41 HD4 0.03 0.03 0.03 42 V33_STB 3.28 3.28 3.28 43 HD3 0.03 2.97 2.97 44 HD2 0.03 0.03 0.03 45 GND 0.03 0.03 0.03 46 HD1 0.03 0.03 0.03 47 HD0 0.03 0.03 0.03 48 E5_ALE 0.03 0.03 0.03

EE PB REC

MODE MODE MODE

IC1501 TPS2051B_1CH

IC1501

1 GND 0.03 0.03 0.03 2IN 4.92 4.92 4.92 3IN 4.92 4.92 4.92 4 USB_PWR_EN 0.06 0.06 0.06 5 USB_OCS 4.91 4.91 4.91 6 OUT 4.40 4.81 7 OUT 4.38 4.77 8 USB_5V 4.39 4.72

No Value Capacitor

Voltage_Spec positive (+) negative (-) Gap margin positive (+) negative (-) Gap margin

Playback Record

C901 47uF 6.3V 4.98V 0.03V 4.95V 1.35V 4.95V 0.01V 4.94V 1.36V

C906 220uF 6.3V 5.2V 0.03V 5.17V 1.13V 5.17V 0V 5.17V 1.13V

3-63 3-64

Only for training and service purposes

Tantal Capacitor Voltage check List

Location Value Voltage

C1729 22uF 10 1.84 1.83 1.82

EE Mode Playback Mode Record Mode

LGE Internal Use Only

PRINTED CIRCUIT BOARD DIAGRAMS

1. MAIN P.C.BOARD

(TOP VIEW) (BOTTOM VIEW)

LGE Internal Use Only

3-65 3-66

Only for training and service purposes

2. I/O P.C.BOARD

(TOP VIEW)

3-67 3-68

LGE Internal Use Only

2. I/O P.C.BOARD

(BOTTOM VIEW)

LGE Internal Use Only

3-69 3-70

Only for training and service purposes

3. POWER P.C.BOARD

(TOP VIEW) (BOTTOM VIEW)

3-71 3-72

LGE Internal Use Only

4. TIMER & KEY P.C.BOARD

4-1. 8 TOOL

(TOP VIEW

) (BOTTOM VIEW)

4-2. 9 TOOL

(TOP VIEW

) (BOTTOM VIEW)

LGE Internal Use Only

3-73 3-74

Only for training and service purposes

5. HDMI P.C.BOARD

(TOP VIEW) (BOTTOM VIEW)

3-75 3-76

LGE Internal Use Only

MEMO MEMO

LGE Internal Use Only

3-77 3-78

Only for training and service purposes

SECTION 4

RS-06A LOADER PART

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE.....................................................................................4-2

THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM..............................4-16

1. RECORDING LAYER ............................................................................................................................4-16

2. DISC SPECIFICATION ..........................................................................................................................4-17

3. DISC MATERIALS .................................................................................................................................4-17

4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA,

LEAD-IN ZONE AND LEAD-OUT ZONE...............................................................................................4-21

OPTICAL POWER SETTING..................................................................................................................4-24

1. AUTOMATIC OPTICAL POWER SETTING (SET-BASED) ...................................................................4-24

2. MANUAL OPTICAL POWER SETTING ................................................................................................4-25

2-1. ALPC MEASUREMENT SYSTEM..................................................................................................4-25

2-2. ALPC PROGRAM ...........................................................................................................................4-25

2-3. EXECUTE ALPC PROGRAM.........................................................................................................4-26

2-4. OPTICAL POWER SETTING .........................................................................................................4-28

2-5. CONFIRM OPTICAL POWER SETTING PARAMETER ................................................................4-29

2-6. ATTACHMENT. OPTICAL POWER MEASUREMENT ...................................................................4-30

INTERNAL STRUCTURE OF THE PICK-UP ....................................................................................4-31

1. BLOCK DIAGRAM OF THE PICK-UP (HOP-7232TL) ..........................................................................4-31

2. PICK UP PIN ASSIGNMENT.................................................................................................................4-32

3. SIGNAL DETECTION OF THE P/U.......................................................................................................4-33

DESCRIPTION OF CIRCUIT...................................................................................................................4-34

1. ALPC (AUTOMATIC LASER POWER CONTROL) CIRCUIT ...............................................................4-34

2. FOCUS/TRACKING/SLED SERVO CIRCUIT .......................................................................................4-35

3. SPINDLE SERVO CIRCUIT ..................................................................................................................4-36

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION .....................................4-37

1. LIC101 (AN22117A) : FEP(RF) ANALOG SIGNAL PROCESSOR .......................................................4-37

2. LIC201 (MN103SC7G) : ENCODER, DECODER & DSP SINGAL PROCESSOR...............................4-43

3. LIC301 (BD7776ARFS) : CD-ROM/DVD-ROM 7CH POWER DRIVER ...............................................4-50

BLOCK DIAGRAM.....................................................................................................................................4-51

CIRCUIT DIAGRAM...................................................................................................................................4-53

CIRCUIT VOLTAGE CHART...................................................................................................................4-55

PRINTED CIRCUIT BOARD DIAGRAMS...........................................................................................4-57

1. MAIN P.C.BOARD (TOP VIEW).............................................................................................................4-57

2. MAIN P.C.BOARD (BOTTOM VIEW) ....................................................................................................4-59

4-1

LGE Internal Use Only

ELECTRICAL TROUBLESHOOTING GUIDE

Reset or power check.

Check it after connecting the power cable

only on interface cable for NO Reset or

Power ON.

Are the pin1 of

LPB272+5V, pin4 of LPB272+12V

respectively after the power cable

connecting?

YES

Does the pin1

(Reset) of LIC401 change 0V to 3.3V

at the power supply initial input

mode?

YES

Are the LX201 oscillating?

YES

<Power>

Is the pin2 of LIC701

3.3V?

YES

1. 65V (VHALF) :

Check pin116 of LIC101

2. 2V (HDVREF) : Check pin80 of

LIC101

NO

Check the power (5V/12V) short. Repair the SMPS Block

Check the LIC401.

Check the LX201 (16.9MHz). Check the LIC201.

Check the LIC701.

Check the LIC101.

LGE Internal Use Only

OK

YES

4-2

Only for training and service purposes

System check.

Load tray without inserting disc.

YES

Does Tray operate normally?

YES

Does Pick-up move to

inside or outside?

YES

Does Pickup lens

move up/down?

YES

Does Laser turn on?

YES

After eject tray, Insert CD-ROM Disc

and check rotation.

NO

Go to “Tray operating is abnormal”

Go to “Sled operating is abnormal”

Go to “Focus Actuator

operating is abnormal”

Go to “Laser operating is abnormal”

YES

Does Disc rotate

continuously and the drive

recognize the disc?

YES

After eject the tray,

Insert DVD Disc and check rotation.

YES

Does Disc rotate

continuously and the drive

recognize the disc?

YES

After eject the tray,

Insert DVD+R/RW Disc and check rotation.

YES

Does Disc rotate

continuously and the drive

recognize the disc?

YES

NO

Go to “Recognition fail Case1

(CD-ROM Disc)”

Go to “Recognition fail Case2

(DVD Disc)”

Go to “Recognition fail Case3

(Blank DVD+R/RW)”

OK

4-3

LGE Internal Use Only

Tray operating is abnormal.

Tray open doesn’t work.

YES

Is the input

voltage 0V at LIC201

pin49 when push the

EJECT SW?

YES

Is there Tray

control signal input?

(LIC301 pin20)

YES

Is there

Tray drive voltage

output? (LIC301

pin14, 15)

YES

Check the

connctor (LPF303)

NO

• Check the connction of LIC201 pin49.

• Check the connction of LIC201 pin70.

• Replace the LIC201.

• Check the communication line between LIC201.

When

LPF303 is open, Is

NO

there Tray drive signal

output?

YES

Replace the LIC301.

LGE Internal Use Only

4-4

Only for training and service purposes

Sled operating is abnormal.

Is there Sled

control signal output?

(LIC201 pin75,

76)

YES

Is there

Sled drive voltage

input? (LIC301

pin25, 26)

YES

Is there

Sled drive voltage

output? (LIC301 pin29,

30, 31, 32)

YES

NO

Check the LR319, LR320.

Is CTL2

signal “H”?

(LIC301 pin17)

YES

Replace the LIC301.

NO

Replace the LIC201.

Check the connection of

LIC101 pin27.

YES

Replace the LIC101.

Is there

Sled drive voltage

output? (LPM302 pin1,

2, 3, 4)

YES

Check the

Connection LPM302.

NO

Replace the Sled Motor.

4-5

LGE Internal Use Only

operatingis abnormal

Spindle

Is there

Spindle control

DSP output? (LIC201

pin77)

YES

Is there

Spindle drive voltage

output? (LIC301 pin35,

36, 37)

YES

Is there

spindle Motor input

voltage? (LPM301

pin1, 2, 3)

YES

NO

Replace the LIC201.

Is there

FG signal input?

(LIC201 pin65)

YES

OK

Replace the Spindle Motor.

NO

• Check the output of LIC301 pin43.

• Check the connector LPM301.

• Replace the LIC301.

Check the

Connection LPM301.

LGE Internal Use Only

4-6

Only for training and service purposes

Focus servo is unstable

Is FE signal

output normal in focusing

Up/Down? (LIC101

pin22*)

YES

Is FDRV signal

output normal in focusing

Up/Down? (LIC201

pin 69)

YES

Go to “Focus actuator

operating is abnormal”

Focus actuator

operating is abnormal.

NO

Check Pickup

Read Power is

1.3~1.7mW?

YES

Replace the LIC101.

Replace the LIC201.

NO

* LIC101 pin22 is MOUT2(FEP Monitor2).

After disc recognition action, Monitor port is

off. So, please check FE signal during disc recognition.

Replace the Pick up.

Is there focus

search control signal input?

NO

(LIC301 pin6)

YES

Is there

focus search drive

NO

voltage output? (LIC301

pin7, 8)

YES

Check the connection

LPM101 pin5, 6.

Replace the pick-up.

• Check the connection of LIC201 pin69.

• Check the communication line between LIC101 and LIC201.

• Replace the LIC201.

Is CTL2 signal “H”?

NO

(LIC301 pin17)

YES

Replace the LIC301.

4-7

Check the connection of LIC101 pin127. Replace the LIC101.

LGE Internal Use Only

Track servo is unstable

Is TE signal

output normal in focusing

ON and tracking OFF?

(LIC101 pin20*)

YES

Is there TDRV

signal output in tracking ON?

(LIC201 pin73)

YES

Check the Drive IC

(LIC301) and P/U

referring to “Focus actuator

operating is abnormal”.

NO

Is PICK UP

(E, F, G, H) output normal?

(LPM101 pin35, 38,

39, 42)

YES

Replace the LIC101.

Replace the LIC201.

NO

Check the PICK UP FFC. Replace the PICK UP.

* LIC101 pin20 is MOUT1(FEP Monitor1).

After disc recognition action, Monitor port is off. So, please check TE signal during disc recognition.

LGE Internal Use Only

4-8

Only for training and service purposes

Recognition fail case 1 : CD-ROM fail

Check pick-up Read power

was 1.3 ~1.7mW?

YES

Does focus servo

operate normally?

YES

Check pick-up

RF signal LIC101(pin83)

RFOUT was about

400mV?

YES

Check EQOUTP

waveform (LIC101 pin65)

was about 400mV?

NO

Go to “LD CHECK”.

Go to “Focus servo is unstable”.

Check the pick-up FFC and LPM101. Replace the pick-up.

Replace LIC101.

YES

Check after

replacing LIC201.

It is OK?

YES

OK

NO

Go to “Tracking servo is unstable”.

4-9

LGE Internal Use Only

Recognition fail case 2 : DVD Disc

Check pick-up

read power was

1.1~1.3mW.

YES

Is there RF signal

at LIC101 pin78?

YES

Is there

RF signal at LIC101

pin88(RFP) and

pin87(RFN)?

YES

Check again after the replace LIC101 It is OK?

NO

Go to “LD CHECK”.

Replace the Pickup.

Replace the LIC101.

Replace the LIC201.

Recognition fail case 3 :

Blank DVD+R/RW

Is there WBL

(LIC101 pin63)

Signal?

YES

Replace LIC101.

LGE Internal Use Only

OK

YES

NO

Is there WBL

(LIC201 pin63)

Signal?

YES

Check the connection

between LIC101 and LIC201.

4-10

NO

Replace LIC201.

Only for training and service purposes

In case of writing fail.

Normal case

Check the media

DVD R/RW?

YES

Does the disc

have any dust, scratch,

fingerprint ...?

Finalized disc?

YES

If DVD R disc,use new DVD R disc. If DVD RW disc,erase the disc.

NO

YES

NO

Check disc label.

Remove the dust, fingerprint and if the disc has long width scratch, change it.

Eject disc.

Go to “Writing part check”.

4-11

LGE Internal Use Only

Writing Part Check

Load tray with DVD R/RW disc.

Press the “REC” key.

Does writing finish without any error?

YES

Is the written file

read normally?

YES

NO

YES

Eject tray.

Go to “LD CHECK”.

Is the re-written file

read normally?

YES

Check and replace LIC201, LIC101.

LGE Internal Use Only

OK

4-12

Only for training and service purposes

LD CHECK

(Laser operating is abnormal)

Perform 6. Optical power setting

parameter check from “How to use Test tool”.

Is ALPC parameters valid?

NO

Perform 5. Optical Power Setting

OFF level

OK

W1SET level & FPD

OK

W2SET level & FPD

OK

W3SET level & FPD

YES

N.G

Execute “C.Laser power setup” of

“How to use test tool”

Check reference voltage.

E

F

G

OK

4-13

LGE Internal Use Only

E

CD/DVD?

CD

Select Mode : CD, Test and perform Test from 4. LD Test of “How to use Test tool”

Check the input of CD/DVD.

(pin10 of LPM 101)

Check the input of W1SET.

(pin12 of LPM101)

DVD

Select Mode : DVD, Test and perform Test from 4. LD Test of “How to use Test tool”

Check the input of CD/DVD.

(pin10 of LPM101)

Check the input of FPD.

(pin123 of LIC101)

LGE Internal Use Only

END

4-14

Only for training and service purposes

F

G

Select Mode : DVD, Test and perform Test from 4. LD Test of “How to use Test tool”

Check the input of CD/DVD.

(pin10 of LPM101)

Check the input of W2SET.

(pin13 of LPM101)

Check the input of recording pulse.

(pin19, 20, 21, 22, 23, 24 of LPM101)

Select Mode : DVD, Test and perform Test from 4. LD Test of “How to use Test tool”

Check the input of CD/DVD.

(pin10 of LPM101)

Check the input of W3SET.

(pin14 of LPM101)

Check the input of recording pulse.

(pin19, 20, 21, 22, 23, 24 of LPM101)

Check the input of FPD.

(pin123 of LIC101)

END

4-15

Check the input of FPD.

(pin123 of LIC101)

END

LGE Internal Use Only

THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM

0.74

um

3

T

0.4 um

1. RECORDING LAYER

• DVD-ROM (Read Only Disc)

• DVD+R/RW Disc

LGE Internal Use Only

4-16

Only for training and service purposes

2. DISC SPECIFICATION

3. DISC MATERIALS

1) DVD-ROM

4-17

LGE Internal Use Only

2) Recording format using organic dye material (DVD-R / DVD+R)

The format that records data through the creation of recorded marks by changing the organic dye material with a laser beam.

• Disc structure

• Recording principles

[ Recording ]

Recording is done by changing the organic dye layer and the substrate with a laser. When a strong laser is applied to a disc, the temperature of the organic dye material goes up, the dye is decomposed and the substrate changes at the same time. At this time, a durable bit is created as is the case with a CDROM.

[ Playback ]

Signals are read with the differences of the reflection of a laser from pits.

LGE Internal Use Only

4-18

Only for training and service purposes

3) Recording format using phase-change recording material

(DVD-RW / DVD+RW)

Data is recorded by changing the recording layer from the amorphous status to the crystalline status, and played back by reading the difference of the reflection coefficient. Amorphous: Non-crystalline.

• Disc structure

• Recording principles

[ Recording ]

When a high-power laser is applied to the recording material, it melts and then becomes amorphous with a low reflection coefficient when it quickly cools off. When a mid-power laser is applied to heat gradually the recording material and then gradually cools it off, it becomes crystal with a high reflection coefficient.

[ Playback ]

A low-power laser is used for playback. The amount of reflected light depends on the status (amorphous or crystalline) of the recording material. This is detected by an optical sensor.

4-19

LGE Internal Use Only

To make recordings, it is necessary to modulate the write pulse, which is called “Write Strategy”. There can be many types in Write Strategy. Typically Write Strategy for DVD R has NMP(Non Multi-Pulse)

type and MP(Multi-Pulse) type. In NMP type each single mark is created by subsequent separated short pulses. In MP type each single mark is created by one continuous pulse.

Write Strategy for DVD RW has Type 1 and Type 2. In Type 1 the mark with nT width is created by one top pulse and (n-2) multi-pulses. Thus mark 3T is made by one top pulse and one multi-pulse. In Type 2 the mark with nT width is created by one top pulse and (n-3) multi-pulses. Thus mark 3T is made by one top pulse only.

RS-06A uses MP type Write Strategy for DVD R and Type 1 for DVD RW as shown below.

LGE Internal Use Only

4-20

Only for training and service purposes

4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA, LEAD-IN ZONE AND LEAD-OUT ZONE

1) Layout of DVD-ROM disc

2) Layout of DVD+R disc

4-21

LGE Internal Use Only

3) Layout of DVD+RW disc

LGE Internal Use Only

4-22

Only for training and service purposes

4) Layout of DVD-R/RW disc

4-23

LGE Internal Use Only

OPTICAL POWER SETTING

1. AUTOMATIC OPTICAL POWER SETTING (SET-BASED)

The RS-06A mounted models are supported by the B/END to automatically execute the optical power setting of the loader at the set condition with the following steps.

1. Use the remote controller to select the mode as Lock position at the Setup menu.

2. Use the remote controller to enter 5 -> 7 -> 2 -> 0 into the set.

When they are normally entered, the GUI is displayed as shown at Fig. 1.

3. When you select ‘Yes’, the optical power setting is automatically proceeded and it takes about 20 seconds.

4. When setting is finished, OK or NG is displayed on the screen.

The OK screen is displayed for the normal termination (Fig. 2) The NG screen is displayed for the abnormal termination (Fig. 3)

5. When you select ‘Yes’ button, the GUI is cleared and it normally operates.

LGE Internal Use Only

Fig. 1

Fig. 3

4-24

Fig. 2

Only for training and service purposes

2. MANUAL OPTICAL POWER SETTING

If the manual optical power setting is not accomplished, you can use the automatic optical power setting.

2-1. ALPC Measurement System

We need basically several measurement instruments to adjust Optical Power of CD and DVD Disc

• ESSENTIAL INSTRUMENT

1) Optical Power meter & Sensor (ADVANTEST, TQ8230/Q82014A)

2) Personal Computer

3) Adjustment Program (Dragon or ALPC) --> being recommended ALPC Program in case of SVC

• OPTIONAL INSTRUMENT

1) USB-ATAPI Interface (if you don’t have Notebook which has ATAPI Interface or use PC USB Port)

2) Connector-ATAPI Interface Board

Connector-ATAPI Interface Board

2-2. ALPC Program

Use the ALPC program in Dragon tool for Optical power setting. It is consist of total 4 files.

Dragon_JW3P.exe dragon.cfg blue.dat WNASPI32.DLL

Four files must exist in same Directory.

4-25

LGE Internal Use Only

2-3. Execute ALPC Program

1) Execute Dragon_JW3P.exe file.

2) Enter the password. It is “qaz”. When you enter the password, turn off the “Caps lock” in your keyboard.

3) Set up the target device. Press “ATAPI” button on the main dialog of Dragon tool. And find the target device which is GDA-4164L.

LGE Internal Use Only

4-26

Only for training and service purposes

4) If the target device setting is completed, execute the “Setup Laser Power(Manual)” in the “Alpc/Opc” menu.

4-27

LGE Internal Use Only

2-4. Optical power setting

When you change the Travers ass’y(including pick-up) or loader PCB, you must do the laser power setting to match pick-up and loader PCB.

1) DVD LD power setting

• Select the DVD in the “Select Laser Diode”

• Press (Read power on, Strong read light)

• Measure optical read Power.

• Write read power value.

• In case of ,

you are able to measure the power through same procedure.

(caution) Don’t watch light directly.

• When you finish optical power measurement,

press button(LD Off).

• Press button.(save to ERPROM)

2) CD LD Power Setting

• Select the CD in the “Select Laser Diode”

• Press .

• Measure optical read Power.

• Write Read Power value.

• Press button(save to ERPROM)

*** In case of CD power setting of RS-06A, loader doesn’t need to

set up write power. Although NMP, MP,Erase and HC power is N.G when you press setup, please ignore the N.G message. Because of RS-06A only support reading function about

CD-R/RW. * Look at reference sheet to test Optical Power. ** Power value is mW unit. Value is read power X 100.

LGE Internal Use Only

4-28

Only for training and service purposes

2-5. Confirm Optical Power Setting Parameter

ALPC Para

++

1)

2)

LD Test result is ok, but Loader performance is bad.

1. Check ALPC parameter value

1) Press button to open “Results Display” dialog.

2) Press button.

- We can see optical power setting value.

- Write optical Power Setting value to paper.

- Adjust power setting again.

- Compare original parameter to new parameter.

- if parameter value is different, original value is wrong or optical power may change.

- But pick-up LD test is all ok, just adjust optical power setting again.

Normal range of ALPC parameter

Optical power value which has been saved in the EEPROM

4-29

LGE Internal Use Only

LG HDR-1000, HDR-899 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual