LG 60PY3D Service Manual

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Page 1

PLASMA TV

SERVICE MANUAL

CAUTION

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

CHASSIS :PA73A

MODEL : 60PY3D 60PY3DF-UA

CANADA : http//biz.lgservice.com USA : http//www.lgservice.com

: http//biz.lgservice.com

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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 same specified type.

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.

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

CANADA: LG Electronics Canada, Inc. 550 Matheson

Boulevard East Mississauga, Ontario L4Z 4G3

USA : LG Customer Interactive Center

P.O.Box 240007, 201 James Record Road Huntsville, AL 35824 Digital TV Hotline 1-800-243-0000

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

ADJUSTMENT INSTRUCTIONS ..........................................5

BLOCK DIAGRAM...............................................................11

EXPLODED VIEW...............................................................16

EXPLODED VIEW PARTS LIST .........................................17

REPLACEMENT PARTS LIST............................................18

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

PRINTED CIRCUIT BOARDS.................................................

TABLE OF CONTENTS

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SPECIFICATIONS

The specifications shown above may be changed without prior notice for quality improvement.

Width x Height x Depth With Stand (inches/mm)

Without Stand

Weight (pounds / kg) With Stand

Without Stand

Width x Height x Depth With Stand (inches/mm)

Without Stand

Weight (pounds / kg) With Stand

Without Stand

Width x Height x Depth With Stand (inches/mm)

Without Stand

Weight (pounds / kg) With Stand

Without Stand

32LB9D

( 32LB9D-UA)

47LC7DF

( 47LC7DF-UB)

1920 x 1080 (Dot) (Only 32LB9D model:1366 x 768 (Dot))

AC100-240V~ 50/60Hz

NTSC-M, ATSC, 64 & 256 QAM

VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135

75 Ω

0 ~ 40°C

Less than 80%

-20 ~ 60°C

Less than 85%

60PY3D

( 60PY3DF-UA)

Resolution

Power requirement

Television System

Program Coverage

External Antenna Impedance

Operating Temperature Range

Operating Humidity Range

Storage Temperature Range

Storage Humidity Range

45.1x32.5x12.0 inches

1144.5x825.6x306.0 mm

45.1x29.7x4.1 inches

1144.5x754.5x103.0 mm

82.4 pounds / 37.5 kg

68.9 pounds / 31.3 kg

63.5x40.8x17.8 inches

1613.6x1036.8x452.0 mm

63.5x38.2x3.9 inches

1613.6x970.0x98.5 mm

180.1pounds / 81.7kg

144.8 pounds / 65.7kg

31.7x24.4x11.2 inches

805.8x619.7x283.9 mm

31.7x21.8x3.1 inches

805.8x554.1x79.0 mm

32.4 pounds / 14.7 kg

27.3 pounds / 12.4 kg

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1. Application Object

These instructions are applied to all of the PDP TV, PA73A.

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 110V, 60Hz

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

prior to the adjustments.

3. Component 480i/1080p RGB 1080p Adjustment

3-1. Synopsis

Component 480i/1080p RGB 1080p adjustment to set the black level and the Gain to optimum.

3-2. Test Equipment

(1) Service R/C (2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern

Generator (480i/1080i The Horizontal 100% Color Bar Pattern adjust to within 0.7±0.1Vp-p)

[ Because the above pattern can differ by the model and

pattern for each device, you must check the pattern first.

3-3. 480i Comp1 Adjustment

(1) Receive the 480i Mode, 100% Horizontal Color Bar

Pattern(HozTV31Bar) to Component 1 port. (MSPG-925FA: ==> Model : 209, Pattern : 65)

(2) Press the ADJ on the adjustment R/C to enter ‘Ez –

Adjust’. Select ‘1. Adjsut 480i Comp1’ using the

and

press the

to make the automatic adjustment.

(3) When the adjustment is over, 'ADC Component1 Success’

is displayed. If the adjustment has errors, 'ADC Component1 408i Fail’ is displayed. [Fail Message]

- If the component is not connected: Component1 Not Connected

- If the input format is not 480i: Not Valid Format

- If the input signal is not generated: Check Signal Status

(4) Readjust after confirming the Pattern or adjustment

condition

(5) After adjustment is complete, exit the adjustment mode by

pressing the ADJ.

3-4. 1080p Comp1/RGB Adjustment

(1) Receive the 1080p Mode, 100% Horizontal Color Bar

Pattern(HozTV31Bar) to Component1 and RGB port. (MSPG-925FA: ==> Model : 225 , Pattern : 65)

(2) After connecting, wait for the image displayed on the

screen

(3) Press the ADJ on the adjustment R/C to enter ‘Ez –

Adjust’. Select ‘2. Adjsut 1080p Comp1/RGB’ using the

and press the Gto make the automatic adjustment.

(4) When the adjustment is over, 'ADC Component1 Success’

is displayed. If the adjustment has errors, 'ADC Component1 1080p Fail’ is displayed.

(5) When the Component1 adjustment is normally completed,

the RGB adjustment automatically starts.

(6) When the adjustment is over, 'ADC RGB 1080p Success’

is displayed.

(7) When the adjustment has errors, 'ADC RGB 1080p Fail’ is

displayed. [Fail Message]

- If the component is not connected: Component1 Not Connected

- If the input format is not 480i: Not Valid Format

- If the input signal is not generated: Check Signal Status

(8) Readjust after confirming the Pattern or adjustment

condition

(9) After adjustment is complete, exit the adjustment mode by

pressing the ADJ.

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ADJUSTMENT INSTRUCTIONS

<Fig. 1> ADC Adjustment Pattern:

480i/1080i 60Hz HozTV31Bar Pattern

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4. Auto Adjustment of RF and Video

Adjustment of RF and video signal

4-1. Adjustment

(1) Connect the Video Signal Generator (Master) to AV1 port

and input the signal. Test Equipment: MSPG925FA Pattern Generator (Model: 201(NTSC-M), Pattern: 33(100% color Bar)) At this time, press the Rev button certainly.

[ Because the above pattern can differ by the model, pattern

and rev button for each device, you must check the pattern first.

(2) Apply the RF signal to the antenna. (Make sure that the

signal is received)

(3) Enter the ‘Ez - Adjust’ by pressing the ADJ on the Service

R/C. After select the ‘3.Adjust RF and Video’, start the adjustment by pressing the Right Key(

). When it enters the adjustment mode, the screen is automatically split as TV 2CH SPLIT as shown at the below figure.

(4) When the adjustment is over, 'RF Configuration Success’ is

displayed. If the adjustment has errors, 'RF Configuration Error’ is displayed.

(5) When adjusting the RF signal is completed, it is

automatically switched to the Video mode as shown at the below figure, and the automatic adjustment for the Video mode starts.

(6) When the adjustment is over, 'AV Configuration Success’ is

displayed. If the adjustment has errors, 'AV Configuration Error’ is displayed.

ADJUSTMENT INSTRUCTIONS

<Fig. 2>

<Fig. 3>

<Fig. 4>

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ADJUSTMENT INSTRUCTIONS

O Preliminary action is applied to the test for afterimage

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

(1) Pressing Power On key on the adjustment R/C (2) Full Test Pattern(2 min 30sec) --> Full Black

Pattern(30sec) --> Full White Pattern (Full White Pattern when the main power is turned on again after being turned off)

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

[ Set is activated HEAT-RUN without signal generator in this

mode.

5. Voltage Adjustment(60” Model)

(1) Va Voltage Adjustment

1) Connect + terminal of D.M.M to Va pin of P805 and connect – terminal to GND pin of P805.

2) Adjust RV501 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs Voltage Adjustment

1) Connect + terminal of D.M.M to Vs pin of P805 and connect – terminal to GND pin of P805.

2) Adjust RV401 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

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

It is the feature to implement the “Plug and Play” which automatically reconfigures the user’sl environment to directly use by exchanging information without any command directly to the PC or the monitor by the user, which is established by the VESA

6-1. Required Test Equipment

(1) PC(S/W: EDID TESTER Ver.2.5) (2) EDID Download JIG (PC serial to D-sub connection cable) (3) Connection Cable

Test Pattern 2min 30sec

Test Pattern 30sec

If you turn on a still screen more than 20 minutes (Especially Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen.

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.)

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ADJUSTMENT INSTRUCTIONS

6-2. Setting of Device

6-3. EDID DATA for 60PY3DF

: EDID for HDMI-1 (DDC (Display Data Channel) Data)

EDID table =