LG 60PC1D, 60PC1D-AA Service Manual

PLASMA TV

SERVICE MANUAL

CAUTION

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

CHASSIS : PB61A

MODEL : 60PC1D 60PC1D-AA

website:http://biz.LGservice.com

- 2 -

CONTENTS

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

SPECIFICATIONS ................................................................................................4

ADJUSTMENT INSTRUCTIONS .........................................................................6

TROUBLE SHOOTING GUIDE ..........................................................................11

BLOCK DIAGRAM.............................................................................................17

EXPLODED VIEW..............................................................................................18

EXPLODED VIEW PARTS LIST ........................................................................19

REPLACEMENT PARTS LIST...........................................................................20

SCHEMATIC DIAGRAM.........................................................................................

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

- 3 -

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 Replacement Parts List. 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 isolation 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 circuitry 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 position, 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 exposed 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 specified, 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

SPECIFICATIONS

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

V Application Range

This spec is applied to the 360” PLASMA TV used PB61A 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 : CB specification EMC : CISPR 13 specification

V General Specification

1. Module Specification(PDP60X6)

- 4 -

Display area

Outline dimension

Number of Pixels

Cell pitch

Color arrangement

Weight(net)

Weight(gross)

Operation Environment Temperature

Humidity

Pressure

Storage Environmnet Temperature

Humidity

Pressure

I mage stick minimization Start time

mode Low Brightness

Arrival Time

1319.6 (H) * 741.9(V) °± 0.5

1408 (H) x 828 (V) x 61 (D)° ± 1

1366 (H) x 768(V)

322um (H) x 966um (V)

RGB closed type

32.0 33.0 32.0

122.0 123.0 124.0

0 ~ 40

20 ~ 80

800 ~ 1100

-20 ~ 60

10 ~ 90

700 ~ 1100

4.5 5 5.5

14 15 16

No Item Remark

1Pixel=3RGB Cells

Green Cell basis

5EA 1 Box

Altitude : 0 to 2000M

Altitude : 0 to 3000M

Chassis

PB61A 60PC1D-AA Australia LG

Model Name Market Brand Remark

60PC1D-AA Safety : IEC60065,EN60065

EMC : CISPR 13 Class B

Australia

Model ApplianceMarket Remark

deg

hPa

deg

hPa

min

Min Typ Max Unit

- 5 -

2. Model General Specification

Broadcasting system

Available Channel

Tuner IF

Input Voltage

PDP Module

Aspect ratio

Operating Temperature

Operating Humidity

Storage Temperature

Storage Humidity

PAL-B/G, DTV : DVB-T

1) VHF : 00 ~ 12

2) UHF : 20 ~ 75

3) CATV : 02 ~ 44

4) DTV : 06 ~12, 27 ~ 69

1) PAL : 38.90MHz(Picture),

34.40MHz(Sound)

2) DVB-T : 36.125MHz

240V~, 50Hz

PDP60X6

16:9 (wide)

0 40 deg

85 %

-20 60 deg

85 %

Item

Remark

Maker : LGE

? Closed Type

Specification

Min Typ Max Unit

- 6 -

ADJUSTMENT INSTRUCTIONS

1. Application Object

These instructions are applied to all of the 60” PLASMA TV, PB61A

Chassis.

2. Notes

(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 equipment. (2) Adjustments must be done in the correct order. (3) The adjustments must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if

there is no specific designation. (4) The input voltage of the receiver be must kept 220V~,

60Hz when adjusting. (5) The receiver must be operational for about 15 minutes

prior to the adjustments.

O Preliminary action is applied to the test for afterimage

discharge detection, and 100% FULL WHITE PATTERN must be operated automatically.

O Test for afterimage discharge detection

1) After pressing Power Only key(only operating by pressing Power Only key), Full Test Pattern(2 min 30sec) --> Full Black Pattern(30sec) --> After this state, Full White Pattern is displayed. (but you must preset the program for Full White State when you press the Main Power Off/On)

2) Pattern Mode is deselected by pressing CH +/-, Exit Key.

[ Set is activated HEAT-RUN without signal generator in

this mode.

3. CPLD Download

(1) Test Equipment: PC, Jig for download (2) Connect the power of VSC B/D. (3) Execute download program of PC. (4) After executing the hot key on the Programmer, click icon. (5) End after confirming.

4. Sub-ucom(MTV) Download

(1) Test Equipment: PC, Jig for download (2) Connect the power of VSC B/D. (3) Execute download program of PC. (4) After executing the hot key on the Programmer, click icon. (5) End after confirming.

5. MST3362M-Set Adjustment

5-1. Synopsis

MST3362M-Set adjustment to set the black level and the Gain of optimum with an automatic movement from the analog => digital converter.

5-2. Test Equipment

Service R/C, 801GF(802B,802F,802R), MSPG-925 Pattern Generator. ( 480i, 1080i 60Hz Color Bar Pattern output will be possible and the output level will accurately have to be revised with

0.7±0.1Vp-p)

5-3. Adjustment

(1) How to adjustment the Component1

1) Select Component1 as the input with Color Bar Pattern in 480i 60Hz mode and select ‘Component1’ on screen.

2) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘1. ADC 480i Comp1’. Pressing the Vol+ Key to adjust the component1.

3) When the adjustment is over, 'Component1 Adjustment OK’ is displayed. If the adjustment has errors, 'Component1 Adjustment Failed! Try Again!’ is displayed.

4) Readjust after confirming the case Pattern or adjustment condition where the adjustment had errors.

5) After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY.

(2) How to adjustment the Component2, RGB

1) Select Component2, RGB-DTV as the input with Color Bar Pattern in 1080i 60Hz mode and select ‘Component2’ on screen.

2) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘2. ADC 1080i Comp2/RGB’. Pressing the Vol+ Key to adjust the component2.

3) When the adjustment is over, 'Component2 Adjustment OK’ is displayed. If the adjustment has errors, 'Component2 Adjustment Failed! Try Again!’ is displayed. and If the adjustment has errors, 'RGB Adjustment Failed! Try Again!’ is displayed.

4) Readjust after confirming the case Pattern or adjustment condition where the adjustment had errors.

5) After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY.

VSC

B/D

JIG cable(CPLD D/L )

<Fig. 1> Connection Diagram of CPLD Download

(Fig. 2) Adjust Pattern : 480i, 1080i 60Hz Color Bar Pattern

Caution) If you turn on a still screen more than 20 minutes (Especially Digital pattern, Cross Hatch Pattern), an afterimage may occur in the black level part of the screen.

- 7 -

6. Video(uPD)-Set

6-1. Synopsis

This is a adjustment to reduce the color difference of video signal Main/Sub Display.

6-2. Required Equipment

Service R/C, MSPG-925 Pattern Generator. (It’s available to output the Color Bar Pattern of the NTSC,PAL)

6-3. Adjustment

(1) How to adjustment the uPD PAL

1) Select AV1 as the input with 100% 8 Color Bar Pattern in PAL mode and select ‘AV1’ on screen.

2) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘3. uPD PAL(Main&Sub)-Set’. Pressing the Vol+ Key to adjust the uPD PAL.

3) When the adjustment is over, 'uPD64015 PAL Main Adjustment OK’ and ‘uPD64015 PAL Sub Adjustment OK’ is displayed. If the adjustment has errors, 'uPD64015 PAL Main Error!’ or 'uPD64015 PAL Main Error!’ is displayed.

4) Readjust after confirming the case Pattern or adjustment condition where the adjustment had errors.

5) After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY.

(2) How to adjustment the uPD NTSC

1) Select AV1 as the input with 100% 8 Color Bar Pattern in NTSC mode and select ‘AV1’ on screen.

2) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘4. uPD NTSC(Main&Sub)-Set’. Pressing the Vol+ Key to adjust the uPD NTSC.

3) When the adjustment is over, 'uPD64015 NTSC Main Adjustment OK’ and ‘uPD64015 NTSC Sub Adjustment OK’ is displayed. If the adjustment has errors, 'uPD64015 NTSC Main Error!’ or 'uPD64015 NTSC Main Error!’ is displayed.

4) Readjust after confirming the case Pattern or adjustment condition where the adjustment had errors.

5) After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY.

7. POWER PCB Assy Voltage Adjustment (Va, Vs Voltage Adjustment)

7-1. Test equipment: D.M.M 1EA

7-2. Connection Diagram for Measuring

Refer to Fig.5

7-3. Adjustment Method

Adjustment Method for Power Board( P/No: EAY32961801)

(1) Va Adjustment

1) After receiving 100% Full White Pattern, HEAT RUN.

2) Connect + terminal of D.M.M to Va pin of P812, connect

- terminal to GND pin of P812.

3) After turning VR901, voltage of D.M.M adjustment as same as Va voltage which on label of panel right/top. (Deviation; ±0.5V)

(2) Vs Adjustment

1) Connect + terminal of D.M.M to Vs pin of P812, connect – terminal to GND pin of P812.

2) After turning VR951, voltage of D.M.M adjustment as same as Va voltage which on label of panel right/top. (Deviation; ±0.5V)

(Fig. 3) Adjust Pattern :100% 8 Color Bar Pattern

Each PCB Assy must be checked by Check JIG Set before assembly. (Especially, be careful Power PCB Assy which can cause Damage to the PDP Module.)

(Fig. 5) Connection Diagram of Power Adjustment for Measuring

- 8 -

8. EDID(The Extended Display Identification Data)/DDC (Display Data Channel) Download

This is the function that enables “Plug and Play".

8-1. Required Test Equipment

(1) PC, Jig for adjusting DDC.

(PC serial to D-sub Connection equipment)

(2) DVI to HDMI Connector.

8-2. Setting of Device

8-3. EDID DATA

(1) HDMI EDID DATA.

(2) RGB EDID DATA.

8-4. Act or set the EDID S/W

1) As above Fig. 6, 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 S/W option.

Repeat Number : 3 Device Address : A0 PageByte : 8

8-5. How to use the EDID S/W

1) Init the data.

2) Load the EDID data.(Open File)

3) Press the “Write Data & Verify”button. and input the

data.

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

Analog EDID

D-sub to D-sub

HDMI EDID

DVI-D to HDMI

JIG

PDP

SET

RGB

(Analog)

Checksum

Model

60PC1D-AA

HDMI

(Digital)

3724

- 9 -

9. Adjustment of White Balance

9-1. Required Equipment

(1) Color analyzer (CA-100 or similar product) (2) Automatic adjustor (with automatic adjustment hour

necessity and the RS-232C communication being possible)

9-2. Connection Diagram of Equipment

for Measuring (Automatic Adjustment)

9-3. Process of automatic adjustment

(1) As using the white pattern for adjustment the inner part,

HDMI connection need not. But as lower part, the RS-232C Command is used.

Wb 00 00 Automatic adjustment of white balance start. Wb 00 10 The start of gain adjustment.(inside pattern) Ja 00 ff Adjustment Date. Jb 00 c0 ... Wb 00 1f The end of gain adjustment.

As occasion demands , adjust the offset.

( Wb 00 20(Start) , Wb 00 2f(end))

Wb 00 ff Automatic adjustment of white balance end.

(Disappear the inside pattern)

Caution) When you adjust, automatically, RS-232C

Command is used.

[[

RS-232C Command (Automatic Adjustment)

9-4. Adjustment of White Balance

(Automatic Adjustment)

Calibrate of the CA-100, then attach sensor to PDP module surface when you adjust.

Manual adjustment is also possible by the following sequence.

(1) HEAT RUN at least 30 minutes by pressing the Power only

Key on the Service Remote Control and adjust. and use power only or tint key and establish BaudRate to 115200.

(2) It must start “ 00 00”, complete “wb 00 ff”. (3) Adjust offset.

9-5. Adjustment of White Balance

(Passivity Adjustment)

(1) HEAT RUN at least 30 minutes by pressing the ‘7. White-

Pattern’ on the Service Remote Control and adjust.

(2) After attaching sensor to center of screen, select ‘6. White-

Balance’ of ‘Ez - Adjust’ by pressing the ADJ KEY on the Service R/C. Then enter adjustment mode by pressing the Right KEY (

). This time white pattern is displayed.

(3) When fix R GAIN in 192,

- make the adjustment reducing the value of G GAIN and

B GAIN less than 192.

When fix G GAIN in 192,

- make the adjustment reducing the value of R GAIN and B GAIN less than 192. When fix B GAIN in 192,

- make the adjustment reducing the value of R GAIN and G GAIN less than 192.

* Fix : R OFFSET=64, G OFFSET=64, B OFFSET=64 (4) Adjust using Volume +/- KEY.

Value of bright : High Level -> 216gray

[Cool]

X; 0.276±0.002 Y; 0.282±0.002 Color temperature: 11000°K ±1000°K dUV: -3dUV

[Medium]

X; 0.285±0.002 Y; 0.294±0.002 Color temperature: 9300°K±1000°K dUV: -3dUV

[Warm]

X; 0.314±0.002 Y; 0.323±0.002 Color temperature: 6300°K±1000°K dUV: -3dUV

(5) Move the the Ez-Adjust screen by pressing the

V KEY

and exit the adjustment mode by pressing the ADJ KEY.

216 FULL WHITE

CVBS Part

PDP MONITOR

COLOR

ANALYZER

TYPE; CA-100

<Fig. 6> Connection Diagram of Automatic Adjustment

R Gain

G Gain

B Gain

R Offset

G Offset

B Offset

CENTER

(DEFAULT)(Hex)

Min

Max

(Hex)

Cool

Mid

Warm

RS-232C COMMAND

[CMD ID DATA]

Cool

Mid

Warm

Automatic adjustment of white balance start.

The start of gain adjustment.(inside white pattern)

The end of gain adjustment.

The start of Offset adjustment.(inside white pattern)

The end of Offset adjustment.

Automatic adjustment of white balance end.

(Disappear the inside pattern)

- 10 -

10. Check the adjustment of the plant shipping mode

: This adjustment is checking the set state after take a adjustment of examination, check state of this model as shown below pressing the IN_STOP button on the adjustment Remote Controller.

Digital

Off

16:9

Dynamic

Cool

Off

Auto

Standard

Off

16:9

Off

Normal

Off

C0, C5, C6, S11,

C20, C35, C52, C68

C43

Item ConditionNo

Remark

Input Mode

Volume Level

Mute

Aspect Ratio

SET ID

Picture PSM

Color Temp.

Advanced Cinema

Black level

Sound SSM

AVL

Balance

TV Speaker

Time Auto Clock

Manual Clock

Off Timer / On Timer

Sleep Timer / Auto Off

Option Sub title

Child Lock

ARC

Demo

ISM Method

Low Power

Channel Memory Analog

Digital

- 11 -

TROUBLE SHOOTING GUIDE

1. Power Board

1-1. The whole flowchart which it follows in voltage output state

Start check

Manufacture enterprise

meaning of a passage

1. Check the Power Off condition.

Doesn't the

screen whole come

out?

Is it identical

with Power Off

condition?

Yes

2. Check the Interface signal condition.

Is the Interface

signal operated?

Yes

3. Check the St-by 5V signal circuit.

Doesn't the

low pressure output

come out?

Doesn't the

St-by 5V signal

come out?

Yes

4. Check the 5V Monitor signal circuit.

Doesn't the

5V Monitor signal

come out?

Yes

7. Check the VSC Vs-ON signal

Doesn't the

high tension output

come out?

Doesn't the

VSC signal Vs-ON

come out?

Yes

Does

high tension

output voltage Drop

occur?

When the

Y B/D Module

input connector is

removed, does output

voltage drop

occur?

When the

Y, Z B/D Module

input connector is remove,

does Power Board hightension

output voltage Drop

occur?

Yes No No

9. Check the Power Board Output high

tension circuit

Yes

10. Check the Z B/D

Module output circuit

Yes

When the

Z B/D Module

input connector is

removed, does output

voltage Drop

occurs?

11. Check the Y B/D

Module output circuit

Yes

8. Check the Vs, Va

voltage output circuit.

Doesn't the

Vs, Va voltage output

come out?

Yes

5. Check the VSC RL-ON signal.

Doesn't the

VSC signal RL-ON

come out?

Yes

6. Check the VSC low pressure output

Doesn't the

VSC low pressure

output come out?

Yes

- 12 -

1-2. 60” Power Board Structure

T901,T902 : Vs Trans

T801 : Va Trans

T201 : Low Voltage Trans & ST-BY Trans

L601,L602 : PFC Inductor

- 13 -

2. In case of occurring strange screen into specific mode

2-1. In case the OSD does not displayed

(1) Symptom

1) LED is white.

2) Some discharge on Panel becomes accomplished continuously.

(2) Check follow

Is the LVDS cable

normal ?

Is the VSC Board

normal?

Is the LVDS cable

connected well?

Cable inserts well.

Yes

Does the Thine IC

(IC900) Operates ?

Replace Thine

(IC900).

Is the Ctrl Board of

Module normal?

Replace Ctrl B/D.

Replace Scaler

(IC401).

Does the Scaler

(IC401) Operates ?

Replace VSC

Digital B/D.

Replace the cable.

Yes

Yes Yes

- 14 -

2-2. In case of does’t display the screen into specific mode

(1) Symptom

1) The screen does not become the display from specific input mode. (RF, AV, Component, RGB, DVI)

(2) Check following

1) Check the all input mode should become normality display

2) Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become

normality display from the PIP mode or DW mode.

(Re-Check using Swap function) Check the NEC64015(IC701) if the main picture is abnormal, and Check the NEC64015(IC801) If the sub picture is abnormal.

(3) When Analog TV mode is abnormal

(4) When AV mode is abnormal

Is the Splitter normal?

Is the Flat Cables

normal?

Replace Flat Cables.

Is the Tuner Cable

connected well?

Cable inserts well.

Yes

Is the CXA2069Q(IC100)

normal?

Replace the Tuner.

Is the Input voltage, IIC Communication

and CVBS output normal?

Is normal the Input voltage, IIC

Communication and HV sync?

Replace the IC.

Yes

Is the uPD64015

normal?

Is normal the Input voltage, IIC

Communication and HV sync?

Is normal the Input voltage, IIC

Communication and HV sync?

Is normal the Input voltage, IIC

Communication and HV sync?

Replace the IC.

Is the CXA2069Q

normal?

Yes

Is the uPD64015

normal?

Replace the IC.

Is normal the Input voltage, IIC

Communication and HV sync?

Yes

Is the Scaler normal?

Replace the IC.

Yes

- 15 -

(5) When Component or RGB-DTV/ PC mode is abnormal

(6) When HDMI/DVI mode is abnormal

(7) When DVI-PC mode is abnormal

(8) When Digital TV mode is abnormal

Is normal the Input voltage, IIC

Communication and HV sync?

Is normal the Input voltage, IIC

Communication and HV sync?

Is the CXA2151Q(IC500)

normal?

Yes

Is the MST3362(IC604)

normal?

Is the MST3362(IC604)

normal?

Replace the IC.

Is normal the Input voltage, IIC

Communication and HV sync?

Yes

Is the Scaler normal?

Replace the IC.

Is normal the Input voltage, IIC Communication and HV sync?

Is the EDID correct?

Yes

Is the latest version the Graphic card

driver of the PC?

Update the Graphic card driver with the

latest version.

Is normal the Input voltage, IIC

Communication and HV sync?

Yes

Is the Scaler normal?

Replace the IC.

Cable connected well.

Is the Tuner Cable connected

well?

Is normal the Input voltage, IIC

Communication and output of the tuner?

Is the Splitter normal?

Yes

Replace the Tuner.

Is the Flat Cables

normal?

Is normal the Input voltage, IIC

Communication and HV sync?

Replace the IC.

Is normal the Input voltage, IIC

Communication and HV sync?

Yes

Is the Scaler normal?

Replace the IC.

Replace the Tuner.

Yes

+ 34 hidden pages

LG 60PC1D, 60PC1D-AA Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual