LG 32PC54-ZD Schematic

PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : PP81D

MODEL : 32PC54 32PC54-ZD

North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com

Internal Use Only

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LGE Internal Use Only

CONTENTS

CONTENTS ....................................................................................................... 2

SAFETY PRECAUTIONS....................................................................................3

SPECIFICATION..................................................................................................4

ADJUSTMENT INSTRUCTION...........................................................................7

TROUBLE SHOOTING......................................................................................16

BLOCK DIAGRAM ............................................................................................23

EXPLODED VIEW ........................................................................................... 25

SVC. SHEET .....................................................................................................27

PRINTED CIRCUIT DIAGRAM..........................................................................39

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LGE Internal Use Only

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitary that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this monitor is blown, replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Due to high vacuum and large surface area of picture tube, extreme care should be used in handling the Picture Tube. Do not lift the Picture tube by it's Neck.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on positioin, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each esposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to

0.5mA. In case any measurement is out of the limits sepcified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument's exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

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LGE Internal Use Only

SPECIFICATIONS

NOTE : Specifications and others are subject to change without notice for improvement

.

V Application Range

This spec sheet is applied to PDP TV used PP81D Chassis.

V Specification

Each part is tested as below without special appointment.

1) Temperature : 25±5°C (77±9°F), CST : 40±5

2) Relative Humidity: 65±10%

3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz) * Standard Voltage of each product is marked by models.

4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with SBOM.

5) The receiver must be operated for about 20 minutes prior to the adjustment.

V Test Method

1) Performance : LGE TV test method followed.

2) Demanded other specification

Safety : CE, IEC specification EMC : CE, IEC

V Module General Specification(32” WVGA PDP Module)

Chassis

PP81D 32PC5RA-TD

32PC5RA-MF

32PC53-ZB 32PC54-ZD

NON EU

Central and South America

EU EU

LG

Model Name Market Brand Remark

32PC53-ZB

32PC54-ZD

32PC5RA-TD 32PC5RA-MF

Safety : IEC/EN60065 EMI : EN55013 EMS : EN55020

Safety : IEC/EN60065 EMI : CISPR13

EU

NON -EU

Central and South

America

Model ApplianceMarket

TEST

Remark

Display Screen Device Aspect Ratio PDP Module

Operating Environment

Storage Environment

Input Voltage

1 2 3

4

5

6

No Item Specification Remark

32 inch 16:9 Color Plasma Display Module 16:9 PDP32F#####, RGB Closed(Well) Type

1) Temp. : 0 ~ 60 deg

2) Humidity : 20 ~ 80 %

3) Temp. : -20 ~ 60 deg

4) Humidity : 10 ~ 90 % AC 100-240V~, 50/60Hz

PDP

Glass Filter

LGE SPEC.

Maker: Sanken

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LGE Internal Use Only

V Model General Specification

(1) EU Spec.(ZA/ZB/ZD)

Market Broadcasting system Available Channel

Receiving system SCART Input(2EA) Video Input (1EA) S-Video Input (1EA)

Component Input (1EA) RGB Input(1EA) HDMI 1EA Input 2EA

Audio Input (5EA)

USB Input(1EA)

1 2 3

4 5 6 7

8 9

10

11

12

No Item Specification Remark

EU PAL BG/I/DK, SECAM BAND PAL VHF/UHF C1 ~ C69 CATV S1 ~ S47 Upper Heterodyne PAL PAL PAL

Y/Cb/Cr, Y/Pb/Pr RGB-PC HDMI-DTV

PC Audio, AV(3EA), Component(1EA)

Divx, MP3, JPEG

SECAM-L spec out

Full Scart 1EA, Harf 1EA Side AV(Except 32PC models) Side AV(Except 32PC models)

REAR HDMI(Only 42/50PG100R-ZA) REAR HDMI(Only 42/50PG200R-ZA

(32PC53-ZB, 32PC54-ZD) L/R Input(PC 1EA, SCART 2EA, SIDE AV 1EA, Component 1EA) (32PC models dosen’t have SIDE AV) SIDE USB: only for 42/50PG600R-ZA

S-Video Priority

China(DK) Australia(BG) VHF/UHF C1 ~ C62 C1 ~ C75 CATV S1 ~ S41 S2 ~ S44

Rear 1EA, Side 1EA(Except 32PC5RA) Rear 1EA Side(Except 32PC5RA) S-video Priority

REAR HDMI(2) SIDE HDMI(1), REAR HDMI(2) : Only for 42/50PG60UR-TA, 50/60PG70FR-TB, 50PG30FR-TB L/R Input(PC 1EA, Component 2EA, Rear 1EA, Side 1EA(Except 32PC5RA))

SIDE USB: only for 42/50PG60UR-TA

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LGE Internal Use Only

(2) NON-EU Spec.(TA/TD)

Market Broadcasting system Available Channel

Receiving system Video Input(2EA) AV Output (1EA) S-Video Input (1EA) Component Input (2EA) RGB Input(1EA) HDMI 2EA Input 3EA

Audio Input (5EA)

RS-232C(1EA) USB Input(1EA)

1 2 3

4 5 6 7 8 9

10

11

12 13

No Item Specification Remark

NON EU/CHINA PAL/SECAM/BG/I/DK, NTSC-M BAND PAL NTSC VHF/UHF E2 ~ C69 2 ~ 78 CATV S21 ~ S47 1 ~ 71 Upper Heterodyne PAL, SECAM, NTSC PAL, SECAM, NTSC PAL, SECAM, NTSC Y/Cb/Cr, Y/Pb/Pr RGB-PC, S/W Upgrade HDMI-DTV, Only PCM MODE

PC Audio, Component(2EA), AV(2EA),

Remote Control Divx, MP3, JPEG

Rear 1EA, Side 1EA(Except 32PC5RA) Rear 1EA Side(Except 32PC5RA) S-video Priority

REAR HDMI(2) SIDE HDMI(1), REAR HDMI(2) : Only for 42/50PG60UR-MA, 50/60PG70FR-MB L/R Input(PC 1EA, Component 2EA, Rear 1EA, Side 1EA(Except 32PC5RA))

(3) Central and South America Spec.(MA/MB/MF)

Market Broadcasting system Available Channel

Receiving system Video Input(2EA) AV Output (1EA) S-Video Input (1EA) Component Input (2EA) RGB Input(1EA) HDMI 2EA Input 3EA

Audio Input (5EA)

RS-232C(1EA)

1 2 3

4 5 6 7 8 9

10

11

12

No Item Specification Remark

Central and South America NTSC, PAL-M, PAL-N BAND NTSC VHF 2 ~ 13 UHF 14 ~ 69 CATV 1 ~ 125 Upper Heterodyne NTSC, PAL-M/N NTSC, PAL-M/N NTSC, PAL-M/N Y/Cb/Cr, Y/Pb/Pr RGB-PC, S/W Upgrade HDMI-DTV, Only PCM MODE

PC Audio, Component(2EA), AV(2EA),

Remote Control

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LGE Internal Use Only

ADJUSTMENT INSTRUCTION

1. Application Range

This spec. sheet is applied to all of the PP81D Chassis.

2. Specification

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed in the circumstance of

25±5

cC of temperature and 65±10% of relative humidity if

there is no specific designation. (4) The input voltage of the receiver must keep 100~240V,

50/60Hz. (5) Before adjustment, execute Heat-Run for 30 minutes at RF

no signal.

3. ADC calibration

3-1. PC input ADC

(1) Auto RGB Gain/Offset Adjustment

1) Convert to PC in Input-source

2) Signal equipment displays

Output Voltage : 700 mVp-p

Impress Resolution XGA (1024 x 768 @ 60Hz)

Model : 60 in Pattern Generator

(1024 x 768 @ 60Hz Black and White Pattern) Pattern : 54 in Pattern Generator (MSPG-925 SERISE) [1/2 Black & White Pattern (Refer below picture)].

3) Adjust by commanding AUTO_COLOR_ADJUST(0xF1) 0x00 0x02 instruction.

(2) Confirmation

1) We confirm whether “0xF1(offset), 0xF2(gain)” address of EEPROM “0xBC” is “0xAA” or not.

2) If “0xF1”, “0xF2” address of EEPROM “0xBC” isn’t “0xAA”, we adjust once more

3) We can confirm the ADC values from “0x00~0x05” addresses in a page “0xBC”

[ Manual ADC process using Service Remocon. After enter

Service Mode by pushing “ADJ” key, execute “Auto-RGB” by pushing “

G” key at “Auto-RGB”.

3-2. COMPONENT input ADC

(1) Component Gain/Offset Adjustment

1) Convert to Component in Input-source

2) Signal equipment displays Impress Resolution 720P MODEL : 217 in Pattern Generator(720P/60Hz 100% Color Bar Mode) PATTERN : 65 in Pattern Generator( MSPG-925 SERISE)

3) Adjust by commanding AUTO_COLOR_ADJUST(0xF1) 0x00 0x02 instruction

(2) Confirmation

1) We confirm whether “0xF3(offset), 0xF4(gain)” address of EEPROM “0xBC” is “0xAA” or not.

2) If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t “0xAA”, we adjust once more

3) We can confirm the ADC values from “0x06~0x0B” addresses in a page “0xBC”

[ Manual ADC process using Service Remocon. After enter

Service Mode by pushing “ADJ” key, execute “Auto-RGB” by pushing “

G” key at “Auto-RGB”.

<Fig. 1> Adjustment pattern(RGB PC)

Adjustment pattern (COMPONENT)

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4. PCB Assembly Adjustment Items

4-1. Option Adjustment Following BOM

Tool Option1 Tool Option2 Area Option

* Profile: Must be changed the option value because being

different with some setting value depend on module, inch and market

* Equipment : Adjustment Remote Controller

(1) Push the IN-START key in the Adjust R/C. (2) Input the Option Number that was specified in the BOM,

into the Shipping area.

(3) Select “Tool Option1/ Tool Option2/ Area Option” by using

D/E(CH+/-) key, and press the number key(0~9)

consecutively ex) If the value of Tool Option1 is 7, input the data using

number key “7” (Fig. 2)

Caution: Don’t Push “IN-STOP” key after PCB assembly

adjustment.

(4) Adjustment method

Before PCBA check, have to change the Tool option and Area option

[ About PDP

After done all adjustments, Press IN-START button and compare Tool option and Area option value with its BOM, if it is correctly same then Change “RF mode” and then unplug the AC cable. If it is not same, then correct it same with BOM and unplug AC cable. For correct it to the model°Øs module from factory JIG model.

[ Don’t push The IN-STOP KEY after completing the function

inspection.

5. S/W Program Download

5-1. Profile

This is for downloading the s/w to the flash memory of the IC803

5-2. Equipment

(1) PC (2) ISP_tool program (3) Download jig

5-3. Connection Structure

5-4. Connection Condition

(1) IC name and circuit number : Flash Memory and IC803 (2) Use voltage : 3.3V (5 pin) (3) SCL : 15 pin (4) SDA : 12 pin (5) Tact time : about 2min and 30seconds

6. Download Method (PCB Ass’y)

6-1. Preliminary Steps

- HD

- FHD

<Fig. 2>

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LGE Internal Use Only

(1) Connect the download jig to D-sub jack

(2) Connect the PC to USB jack

6-2. Download Steps

(1) Execute ‘ISP Tool’ program in PC, then a main window will

be opened

(2) Click the connect button and confirm “Dialog Box”.

(3) Click the config button and change speed

E2PROM Device setting: over the 350Khz

(4) Read and write bin file

Click “(1)Read” tab, and then load download file(XXXX.bin) by clicking “Read”.

(5) Click “Auto(2)” tab and set as below (6) Click “Run(3)”. (7) After downloading, check “OK(4)” message.

[ Notice : From this sentence, All working is mass production.

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LGE Internal Use Only

7. EDID(The Extended Display Identification Data) / DDC

(Display Data Channel) Download

[ Caution

- Use the proper signal cable for EDID Download

- Never connect HDMI & D-SUB Cable at the same time.

- Use the proper cables below for EDID Writing

7-1. Profile:To be possible for plug and play 7-2. Equipment

(1) Adjusting PC with S/W for writing EDID Data.(S/W: EDID

TESTER Ver.2.5) (2) A Jig for EDID Download (3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub

15Pin cable, DVI to HDMI cable.

7-3. Connection Structure

Caution: Never connect HDMI & D-SUB Cable at the same time.

7-4. EDID Data

O XGA/WXGA/Full HD EDID DATA

<Fig. 3> Connection Diagram of DDC Download

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LGE Internal Use Only

ⓐ Product ID

ⓑ Serial No

=> Controlled on production line

=> Controlled on production line:

ex) Monthly: ‘11’ -> ‘0B’

Year: ‘2007’ -> ‘11’

ⓓ Model Name(Hex)

ⓔ Checksum

=> Changeable by total EDID data

1) Analog(128Byte)

2) HDMI 1/2/3(256Byte)

7-5. Preparation for Adjustment

(1) As above Fig. 3, Connect the Set, EDID Download Jig,,

PC & Cable

(2) Turn on the PC & EDID Download Jig. And Execute the

S/W : EDID TESTER Ver.2.5

(3) Set up the S/W option

Repeat Number : 5 Device Address : A0 PageByte : 8

(4) Power on the Set

1) Sequence of Adjustment

1. DDC data of Analog-RGB (1) Init the data

(2) Load the EDID data.(Open File).

(3) Set the S/W as below.

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(4) Push the “Write Data & Verify” button. And confirm “Yes”.

(5) If the writing is finished, you will see the “OK” message.

8. HDCP(High-Bandwidth Digital Contents Protection)

[ Confirmation

Before HDCP Download, you have to Set the Configuration that CMD delay.

-> Configuration -> Option-> I2C delay(Write Byte : 0.5 ms,

Read Byte : 0.5ms, Read CMD Byte : 0.5ms)

(1) Connect D-sub Signal Cable to D-Sub Jack (2) Input HDCP key with HDCP-key- in-program (3) HDCP Key value is stored on Main M-STAR

IC(LGE6891DD) which is 0x80~0x90 addresses of 0x00~0x01 page(EEPROM MAP PAGE0~PAGE1 / START :A080)

(4) AC off/on and on HDCP button of MSPG925 and confirm

whether picture is displayed or not of using MSPG925

(5) HDCP Key value is different among the sets

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9. Adjustment of White Balance

9-1. Purpose and Principle for Adjustment

of the Color Temperature

(1) Purpose: Adjust the color temperature to reduce the

deviation of the module color temperature.

(2) Principle : To adjust the white balance without the

saturation, Fix the one of R/G/B gain to C0 and decrease the others.

(3) Adjustment mode: Two modes of Cool and Warm

(Cool data is automatically calibrated by the Medium data)

9-2. Required Equipment

(1) Remote controller for adjustment (2) Color Analyzer : CA-100+ or CA-210 or same product

- PLASMA TV(ch : 10)

(3) Auto W/B adjustment instrument(only for Auto adjustment)

- Do the white balance adjustment under the 10LUX

[ Notice: When using the Color Analyzer with PDP,

recommend the CA-100 more than CA-210. If CA-100 can not available, it is also good to use the CA-210.

(4) PC (for communication through RGB) (5) Pattern Generator (MSPG-925FA etc.)

-Before white balance, press the ADJ key 2times and do the reset like Fig. 4

-To enter White-balance mode, press the ADJ key 2times.

[ Caution: System control Host should be “DDC” for adjustment.

9-3. Connecting Diagram of Equipment for

Measuring

(For Automatic Adjustment)

(method 1, using IIC, You connect RGB Cable)

(1) Enter the adjustment mode of the white balance

- Enter the white balance adjustment mode at the same time heat-run mode when pushing the power on by power only key

- Maintain the white balance adjustment mode with same condition of Heat-run

- Maintain after AC off/on in status of Heat-run pattern display

(2) Release the white balance adjustment mode

- Release the adjust mode after AC off/on or std-by off/on in status of finishing the Hear-run mode

- push the “power on” key(IIC Mode) on Adjust remotecontroller.

- Release the Adjust mode when receiving the aging off command(F3 00 00) from adjustment equipment)

(3) Enter the adjust mode of white balance

- Enter the white balance adjustment mode with aging command(F3, 00, FF)

O Color Temperature & Color Coordinates Setting

- When adjusting the Color Temperature, Color Analyzer CA210(Matrix should be corrected through CH10 of CS-1000) should be used. When CA-210 have used, it don’t need to fit the CH10.

- Adjust the Color Temperature based below adjustment color coordinates.

O Target Value CA-210(LCD : CH 9, PDP : CH10), CA-100(PDP)

(Standard color coordinate and temperature when using the CA-100+ or CA210 equipment)

O Synchronization relation between PSM and CSM

<Fig. 4>

PSM Vivid

Mild

CSM

Cool

Warm