LG 60PG30FD Schematic

PLASMA TV

SERVICE MANUAL

CAUTION

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

CHASSIS : PA81C

MODEL : 60PG30FD 60PG30FD-AA

website: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...........................................................................5

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

BLOCK DIAGRAM ............................................................................................20

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

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

PRINTED CIRCUIT DIAGRAM..........................................................................36

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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 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 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 is applied to the 60” PLASMA TV used PA81A 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 ( 60” WXGA )

Chassis

PA81C 50/60PG30FD-AA

50/60PG70FD-AB

Australia LG

Model Name Market Brand Remark

50/60PG30FD-AA 50/60PG70FD-AB

Safety : IEC/EN60065 EMI : CISPR 13 Class B

Australia

Model ApplianceMarket Remark

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LGE Internal Use Only

1. Application Range

This spec. sheet is applied to all of the PA81A, PA81C chassis manufactured at LG TV Plant all over the world.

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°C 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) The receiver must be operated for about 15 minutes prior

to the adjustment.

O After RGB Full White in HEAT-RUN Mode, the receiver

must be operated prior to the adjustment.

O Enter into HEAT-RUN MODE

1) Press the POWER ON KEY on R/C for adjustment.

2) Press the ADJ KEY on R/C and enter EZ ADJUST

- Select “3. Test Pattern” by using

D/E(CH +/-) and

press ENTER(

V)

- Select “White” by using

F/G(VOL +/-) and press

ENTER(

V)

* Set is activated HEAT-RUN without signal generator in

this mode.

* Single color pattern ( RED / BLUE / GREEN ) of HEAT

RUN MODE uses to check panel.

* Caution : If you turn on a still screen more than 20

minutes (Especially digital pattern, cross hatch pattern), an after image may be occur in the black level part of the screen.

PCB Assembly Adjustment Method

Caution: Using ‘power on’ button of the control R/C , power

on TV. All adjustment process is executed one time through RS232C. Do not connect external input cable. Power off TV After adjustment method, not using ‘in-stop’ button of control R/C

3. S/W Auto Download Using the USB Memory Stick

Caution: Using ‘power on’ button of the control R/C, power on

TV. USB file (EPK) version must be bigger than downloaded version of main B/D.

(1) Insert the USB memory stick to the PCB ASSEMBLY. (2) Using ‘power on’ button of the control R/C, power on TV. (3) S/W download process is executed automatically.

4. Auto-control Adjustment Process

(1) All adjustment process is executed one time through RS-

232C.

(2) Command send

( ADC Calibration ( Model name

download ( EDID download.

ADJUSTMENT INSTRUCTION

1 2 3

4

5

6

7

8

9

10

Ready

ADC ADC

Confirmation

ADC

Mode Out

Download

Mode In

EDID

Download

Check EDID

Status

Define model

name

Adjustment

Confirmation

Download Mode Out

NO

Item

Remark

CMD1 CMD2

Data 0 a a a

a

d d d

d

e

0 0 9

0

0~4,9

1~7

9

0

0 1 9

9

0

1

2

5

9

Ready

ADC start

Transmitting adjustment mode In

instruction, operate adjustment command.

All=0 ; HDMI1,2,3,4=1,2,3,4 ; RGB=9

Model define index(Data0) are listed at

next table.

EDID data existence check in SET

assembly

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LGE Internal Use Only

O Adjsutment process protocol(RS-232C)

5. Manual Model Name Download

(1) Press ADJ key on R/C for model name D/L (2) Select “0. Model Option” and press ENTER(

V)

(3) Select model name by using

D/E(CH +/-) and press

ENTER(

V)

6. Manual ADC Adjustment

O Adjustment is done using internal ADC, so input signal is

not necessary.

O Do not connect external input cable.

O Required Equipment

Remote controller for adjustment

(1) Press ADJ key on R/C for adjustment. (2) Select “1. ADC calibration” by using

D/E(CH +/-) and

press ENTER(

V)

(3) Select “Start” by using

F/G(VOL +/-) and press ENTER(V)

(4) ADC adjustment is executed automatically.

7. Manual EDID Download

Caution: Do not connect HDMI and RGB cable.

(1) Press ADJ KEY on R/C and enter EZ ADJUST. (2) Select “5.EDID D/L” by using

D/E(CH+/-) and press

ENTER(

V).

(3) Select “Start” and press ENTER(

V).

(4) EDID download is executed automatically. (5) Press EXIT key on R/C.

7-1. EDID DATA

(1) RGB EDID

Numbers in the red line is week & year manufacture and numbers in the blue line is check sum.

(2) HDMI EDID

1) HDMI 1

Numbers in the red line is week & year manufacture and numbers in the blue line is check sum.

2) HDMI 2

Numbers in the red line is week & year manufacture and numbers in the blue line is check sum.

a a a a a a a a a

e e e e e e e e e

5 5 5 5 5 5 5 5 5

1 2 3 4 5 6 7 8 9

60PG30UD-AA 50PG60UD-AA

50PG20D-AA

42PG60UD-AA

42PG20D-AA 60PG70FD-AB 50PG70FD-AB 60PG30FD-AA 60PG30FD-AA

CMD1 CMD2 Data 0 Remark

60PG30UD-AA 50PG60UD-AA

50PG20D-AA

42PG60UD-AA

42PG20D-AA 60PG70FD-AB 50PG70FD-AB 60PG30FD-AA 50PG30FD-AA

13030130 36030130 32013360 56030130 52013360 17015131 37015131 13015130 33105130

Model Name Model Option Value

NO SIGNAL or White noise NO SIGNAL

RF Input AV / Component / RGB input

a

a a

3) HDMI 3

Numbers in the red line is week & year manufacture and numbers in the blue line is check sum.

4) HDMI 4

Numbers in the red line is week & year manufacture and numbers in the blue line is check sum.

[ Upper EDID Data used by 60PG30FD-AA model

Caution: It can be different from week & year manufacture and

check sum. (Because week & year manufacture and check sum is updated once a year)

ⓐ Product ID

SET Assembly Adjustment Method

Caution: Each PCB assembly must be checked by check JIG

set. (Because power PCB Assembly damages to PDP Module, especially be careful) Set up “RF mode(noise)” before voltage adjustment.

8. POWER PCB Ass’y Voltage Adjustment (Va, Vs Voltage adjustment)

8-1. Test Equipment :D.M.M. 1EA 8-2.Connection Diagram for Measuring

: refer to Fig.1, Fig.2, Fig.3, Fig.4, Fig.5

8-3. Adjustment Method

(1) 60” Va Adjustment(refer Fig. 1)

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

2) Connect + terminal of D.M.M to Va pin of P811, connect

- terminal to GND pin of P811.

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) 60” Vs Adjustment(refer Fig. 1)

1) Connect + terminal of D.M.M to Vs pin of P811, connect – terminal to GND pin of P811.

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)

(3) 50” Va Adjustment(refer Fig. 2)

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

2) Connect + terminal of D.M.M to Va pin of P811, connect

- terminal to GND pin of P811.

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)

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LGE Internal Use Only

a

(Fig. 1) 60inch Power PCB Assy Voltage Adjustment

(4) 50” Vs Adjustment(refer Fig. 2)

1) Connect + terminal of D.M.M to Vs pin of P811, connect – terminal to GND pin of P811.

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)

(5) 42” Va Adjustment(refer Fig. 3)

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

2) Connect + terminal of D.M.M to Va pin of P811, connect terminal to GND pin of P811.

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)

(6) 42” Vs Adjustment(refer Fig. 3)

1) Connect + terminal of D.M.M to Vs pin of P811, connect – terminal to GND pin of P811.

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)

(7) 50” Va Adjustment (refer Fig. 4)

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

2) Connect + terminal of D. M..M. to Va pin of P816, connect

-terminal to GND pin of P816.

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)

(8) 50” Vs Adjustment (refer fig. 4)

1) Connect + terminal of D. M..M. to Vs pin of P816, connect

-terminal to GND pin of P816.

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

(9) 60” Va Adjustment (refer Fig. 5)

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

2) Connect + terminal of D. M..M. to Va pin of P816, connect

-terminal to GND pin of P816.

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)

(10) 60” Vs Adjustment (refer Fig. 5)

1) Connect + terminal of D. M..M. to Vs pin of P816, connect

-terminal to GND pin of P816.

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

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LGE Internal Use Only

(Fig. 2) 50inch Power PCB Assy Voltage Adjustment

(Fig. 4) 50inch Full HD Power PCB Assy Voltage adjustment

(Fig. 5) 60inch Full HD Power PCB Assy Voltage Adjustment

(Fig. 3) 42inch Power PCB Assy Voltage Adjustment

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LGE Internal Use Only

9. Adjustment of White Balance

Caution: Press the POWER ON KEY on R/C before W/B

adjustment. Before adjusting White-Balance, the AV ADC should be done. If ADC status were “NG”, Need to ADC adjustment.

9-1. Required Equipment

(1) Color Analyzer (CS-1000, CA-100+(CH.10), CA-210

(CH.10) ) [ Please adjust CA-100+ / CA-210 by CS-1000 before

measuring

—> You should use Channel 10 which is Matrix

compensated(White, Red, Green, Blue revised) by CS1000 and adjust in accordance with White balance adjustment coordinate.

O Color temperature standards according to CSM and Module

O Change target luminance and range of the Auto adjustment

W/B equipment.

O White balance adjustment coordinate and color temperature.

[ PC(for communication through RS-232C) -> UART Baud

rate : 115200 bps

9-2. Connection Picture of the Measuring

Instrument(On Automatic control)

Inside PATTERN is used when W/B is controlled. Connect to auto controller or push control R/C IN-START -> Enter the mode of White-Balance, the pattern will come out.

9-3. Auto-Control Interface and Directions

(1) Adjust in the place where the influx of light like floodlight

around is blocked.(illumination is less than 10ux)

(2) In case of PDP: Measure and adjust after sticking the

Color Analyzer (CA-100+, CA210 ) to the side of the module.

(3) Aging time

- After aging start, keep the power on (no suspension of

power supply) and heat-run over 15 minutes.

- In case of PDP, keep white pattern using inside pattern.

- In case of LCD, using ‘no signal’ or ‘full white pattern’ or

the others, check the back light on.

O Auto adjustment Map(RS-232C)

65 20

Range

Target luminance

0.276

0.283

0.000

0.276±0.002

0.283±0.002

0.000

0.276±0.002

0.283±0.002

0.000

X y

uv

Cool CS-1000 CA-100+(CH.10) CA-210(CH.10)

0.285

0.293

0.000

0.285±0.002

0.293±0.002

0.000

0.285±0.002

0.293±0.002

0.000

X y

uv

Medium CS-1000 CA-100+(CH.10) CA-210(CH.10)

0.313

0.329

0.003

0.313±0.002

0.329±0.002

0.003

0.313±0.002

0.329±0.002

0.003

X y

uv

Warm CS-1000 CA-100+(CH.10) CA-210(CH.10)

Full White Pattern

RS-232C Communication

CA-210

Color

ANALYZER

TYPE : CA-210

(Fig. 6) Connecting picture(On Automatic Control)

9-4. Manual White Balance

(1) Zero Calibrate CA-100+ / CA-210, and when controlling,

stick the sensor to the center of PDP module surface.

(2) Press the ADJ KEY on R/C and enter EZ ADJUST

Select “2. White Balance” and press

G(VOL +)

Set test-pattern on and display inside pattern.

(3) Control is carried out on three color temperatures, COOL,

MEDIUM,WARM. (Control is carried out thress times)

- R-Cut / G-Cut / B-Cut is set to 64

- Control R-Gain and G-Gain.

- Each Gain is limited to 192.

- R-Cut / G-Cut / B-Cut is set to 64

- Control R-Gain and G-Gain.

- Each Gain is limited to 192.

- R-Cut / G-Cut / B-Cut is set to 64

- Control G-Gain and B-Gain.

- Each Gain is limited to 192.

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LGE Internal Use Only

TROUBLE SHOOTING GUIDE

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LGE Internal Use Only

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LGE Internal Use Only