PANASONIC TH-42PV500a, TH-42PV500H, TH-42PV500M Service Manual

Specifications

ORDER NO.ITD0508044CE

High Definition Plasma Television

TH-42PV500A TH-42PV500H TH-42PV500M

GP8DA Chassis

Power Source

Power Consumption

Plasma Display panel

Drive method

Aspect Ratio 16:9

Contrast Ratio 3000:1

Screen size 42-inch (106 cmV)

(Number of pixels) 920 mm (W) × 518 mm (H) × 1,056 mm (diagonal)

Sound

Speaker Woofer (Ø 80 mm) × 2 pcs, Tweeter (16 mm × 73 mm) × 4 pcs

Audio Output 26 W (13 W + 13 W ), 10% THD

Headphones M3 (3.5 mm) Jack × 1

Applicable signals

Colour System NTSC, PAL, PAL60, SECAM, Modified NTSC

Scanning format 480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(50Hz), 720p(60Hz), 1080i(50Hz), 1080i(60Hz)

PC signals XGA display

C 220-240 V, 50 / 60 Hz

verage use : 341 W

Standby condition : 0.3 W

C type

786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots]

VGA, SVGA, XGA

SXGA (compressed)

Horizontal scanning frequency 31 - 69 kHz

Vertical scanning frequency 59 - 86 Hz

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

Receiving Systems / Band name (PV500H/M)

Receiving Systems / Band name (PV500A)

Receiving Channels

(Regular TV) (PV500H/M)

VHF BAND

2-12 (PAL/SECAM B, K1)

0-12 (PAL B AUST.)

1-9 (PAL B N.Z.)

1-12 (PAL/SECAM D)

1-12 (NTSC M Japan)

2-13 (NTSC M USA)

UHF BAND

21-69 (PAL G, H, I/SECAM G, K, K1)

28-69 (PAL B AUST.)

13-57 (PAL D, K)

13-62 (NTSC M Japan)

14-69 (NTSC M USA)

CATV

S1-S20 (OSCAR)

1-125 (USA CATV)

C13-C49 (JAPAN)

S21-S41 (HYPER)

Z1-Z37 (CHINA)

5A, 9A (AUST.)

Receiving Channels

(PV500A)

VHF 0 to 12 PAL B

UHF 21 to 69 PAL G

S´1 to S´3 HYPER TUNER

S1 to S41

(One tuner)

Aerial - Rear UHF / VHF

Operating Conditions Temperature : 0 °C - 40 °C

Humidity : 20 % - 80 % RH (non-condensing)

Connection Terminals

AV1 Input

AUDIO L - R RCA PIN Type × 2 0.5 Vrms VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W) S-VIDEO Mini DIN 4-pin Y:1.0 Vp-p (75 W) C:0.286 Vp-p (75 W)

AV2 Input

AUDIO L - R RCA PIN Type × 2 0.5 Vrms VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)

COMPONENT Y 1.0 Vp-p (including synchronization)

PB/CB,PR/C

AV3 Input

AUDIO L - R RCA PIN Type × 2 0.5 Vrms VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)

± 0.35 Vp-p

S-VIDEO Mini DIN 4-pin Y:1.0 Vp-p (75 W) C:0.286 Vp-p (75 W)

AV4 Input

AUDIO L - R RCA PIN Type × 2 0.5 Vrms VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)

COMPONENT Y 1.0 Vp-p (including synchronization)

PB/CB,PR/C

Others HDMI TYPE A Connector

PC Input HIGH-DENSITY D-SUB 15PIN R,G,B / 0.7 Vp-p (75 W)

Audio Input RCA PIN Type × 2 0.5 Vrms

Card slot SD CARD slot × 1, PC CARD slot × 1

Output AUDIO L - R RCA PIN Type × 2 0.5 Vrms (high impedance)

VIDEO RCA PIN Type × 1 1.0 Vp-p (75W)

Dimensions ( W × H × D ) 1,138 mm × 730 mm × 138 mm

Weight 40.0 kg Net

Notes:

· Design and Specifi cations are subject to change without notice. Weigh t and Dimensions shown are approximate.

· ·

± 0.35 Vp-p

HD, VD / TTL Level 2.0 - 5.0 Vp-p (high impedance)

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

CONTENTS

Page Page

1 Applicable signals 5

2 Safety Precautions

2.1. General Guidelines

3 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

4 About lead free solder (PbF)

5 Service Hint

6 Plasma panel replacement method

6.1. Remove the Back cover.

6.2. Remove the P-Board.

6.3. Remove the PB-Board

6.4. Remove the D-Board

6.5. Remove the rear terminal cover

6.6. Remove the metal frame

6.7. Remove the DT-Board and DV-Board

6.8. Remove the DG-Board

6.9. Remove the H-Board and TA/TB-Board

6.10. Remove the PA-Board

6.11. Remove the Z-Board

6.12. Remove the SU-Board

6.13. Remove the SD-Board

6.14. Remove the SC-Board

6.15. Remove the SS2-Board

6.16. Remove the SS3-Board

6.17. Remove the SS-Board

6.18. Remove the Fan

6.19. Remove the C1-Board

6.20. Remove the C2-Board

6.21. Remove the Speaker L, R

6.22. Remove the stand brackets.

6.23. Remove the C3-Board

6.24. Remove the C4-Board

6.25. Remove the front bracket

6.26. Remove the G-Board

6.27. Remove the GK-Board

6.28. Remove the GS-Board and SD-Module

6.29. Remove the K-Board

6.30. Remove the S-Board

6.31. Remove the Plasma panel section from the Front frame

(glass)

6.32. Replace the plasma panel (finished).

7 Location of Lead Wiring

7.1. Lead of Wiring (1)

7.2. Lead of Wiring (2)

7.3. Lead of Wiring (3)

7.4. Lead of Wiring (4)

7.5. Lead of Wiring (5)

7.6. Lead of Wiring (6)

7.7. Lead of Wiring (7)

8 Self Check

8.1. Power LED Blinking timing chart

8.2. No Power

8.3. No Picture

8.4. Local screen failure

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

9 Service Mode Function 31

9.1. How to enter SERVICE 1

9.2. How to enter SERVICE 2

9.3. Option Description

9.4. Option Code

10 Adjustment Procedure

10.1. Driver Set-up

10.2. Initialization Pulse Adjust

10.3. P.C.B. (Printed Circuit Board) exchange

10.4. Adjustment Volume Location

10.5. Test Point Location

11 Adjustment

11.1. PAL panel white balance adjustment

11.2. 1080i white balance adjustment

11.3. Sub bright adjustment

11.4. ABL adjustment

11.5. TEXT Vref Auto Adjustment

12 Hotel mode

13 Conductor View

13.1. P-Board

13.2. PA-Board

13.3. PB-Board

13.4. H-Board

13.5. DG-Board

13.6. TA-Board

13.7. TB-Board

13.8. DV-Board

13.9. Z-Board

13.10. D-Board

13.11. C1-Board

13.12. C2-Board

13.13. C3-Board

13.14. C4-Board

13.15. SC-Board

13.16. SU-Board

13.17. SD-Board

13.18. SS, SS2 and SS3-Board

13.19. G-Board

13.20. GK, GS, K and S-Board

14 Block and Schematic Diagram

14.1. Schematic Diagram Notes

14.2. Main Block Diagram

14.3. P-Board Block Diagram

14.4. P-Board (1 of 2) Schematic Diagram

14.5. P-Board (2 of 2) Schematic Diagram

14.6. PA and PB-Board Block Diagram

14.7. PA-Board Schematic Diagram

14.8. PB-Board Schematic Diagram

14.9. H, TA and TB-Board Block Diagram

14.10. TA and TB-Board Schem atic Diagram

14.11. H-Board (1 of 3) Schematic Diagram

14.12. H-Board (2 of 3) Schematic Diagram

14.13. H-Board (3 of 3) Schematic Diagram

14.14. G, GK, GS, K and S-Board Block Diagram

14.15. G-Board Schematic Diagram

14.16. GK, K, and S-Board Schematic Diagram

14.17. GS-Board Schematic Diagram

14.18. DG-Board (1 of 2) Block Diagram

14.19. DG-Board (2 of 2) Block Diagram

14.20. DG-Board (1 of 6) Schematic Diagram

14.21. DG-Board (2 of 6) Schematic Diagram

14.22. DG-Board (3 of 6) Schematic Diagram

14.23. DG-Board (4 of 6) Schematic Diagram

14.24. DG-Board (5 of 6) Schematic Diagram

14.25. DG-Board (6 of 6) Schematic Diagram

14.26. DV-Board Block Diagram

14.27. DV-Board Schematic Diagram

14.28. Z-Board Block Diagram

14.29. Z-Board (1 of 2) Schematic Diagram

14.30. Z-Board (2 of 2) Schematic Diagram

14.31. D-Board Block Diagram

14.32. D-Board (1 of 6) Schematic Diagram

14.33. D-Board (2 of 6) Schematic Diagram

14.34. D-Board (3 of 6) Schematic Diagram

14.35. D-Board (4 of 6) Schematic Diagram

14.36. D-Board (5 of 6) Schematic Diagram

14.37. D-Board (6 of 6) Schematic Diagram

14.38. C1, C2, C3 and C4-Board Block Diagram

14.39. C1-Board (1 of 2) Schematic Diagram

14.40. C1-Board (2 of 2) Schematic Diagram

14.41. C2-Board (1 of 2) Schematic Diagram

14.42. C2-Board (2 of 2) Schematic Diagram

14.43. C3-Board (1 of 2) Schematic Diagram

14.44. C3-Board (2 of 2) Schematic Diagram

14.45. C4-Board (1 of 2) Schematic Diagram

14.46. C4-Board (2 of 2) Schematic Diagram

14.47. SC-Board Block Diagram

14.48. SC-Board (1 of 2) Schematic Diagram

14.49. SC-Board (2 of 2) Schematic Diagram

14.50. SU-Board Block Diagram

14.51. SU-Board (1 of 2) Schematic Diagram

14.52. SU-Board (2 of 2) Schematic Diagram

14.53. SD-Board Block Diagram

14.54. SD-Board (1 of 2) Schematic Diagram

14.55. SD-Board (2 of 2) Schematic Diagram

14.56. SS, SS2 and SS3-Board Block Diagram

14.57. SS, SS2 and SS3-Board Schem atic Diagram

15 Parts Location & Mechanical Replacement Parts List

15.1. Parts Location

15.2. Packing Exploded Views (1)

15.3. Packing Exploded Views (2)

15.4. Packing Exploded Views (3)

15.5. Mechanical Replacement Parts List

16 Electrical Replacement Parts List

16.1. Replacement Parts List Notes

16.2. Electrical Replacement Parts List

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

133

134

135

136

137

139

140

1 Applicable signals

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

2 Safety Precautions

2.1. General Guidelines

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

2.1.1. Leakage Current Cold Check

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.

2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1MW and 5.2MW.

When the exposed metal does not have a return path to

the chassis, the reading must be

Figure 1

2.1.2. Leakage Current Hot Check (See

Figure 1.)

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a 1.5kW, 10 watts resistor, in parallel with a 0.15µF capacitors, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.

6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

3 Prevention of Electro Static Discharge (ESD) to

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 electro static discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, 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 alminum 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 (ESD protected)" can generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges 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, alminum 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.

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. (Otherwise hamless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

4 About lead free solder (PbF)

Note: Lead is listed as (Pb) in the periodic table of elements.

In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.

The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).

That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d suggest the use of Pb free solder as well, although Pb solder may be used.

PCBs manufactured using lead free solder will have the PbF within a leaf Symbol

Caution

· Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher.

· ·

Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).

· Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).

· ·

If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

· After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto

· ·

the opposite side. (see figure below)

Suggested Pb free solder

There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

stamped on the back of PCB.

5 Service Hint

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

Board Name Function Board Name Function

P Power Supply SC Scan Drive PA DC-DC Converter SU Scan out (Up) PB Audio Power, Fan control SD Scan out (Down)

H AV Terminal, AV Switch SS Sustain Drive DV HDMI Interface SS2 Sustain Connector (Up) DG Digital Signal Processor SS3 Sustain Connector (Down)

Z Speaker out, Audio AMP K Remote receiver, Keyscan

D Format Converter, Plasma AI Processor S Power Switch C1 Data Driver (Up Right) G PC Card Slot, Front Terminal C2 Data Driver (Up Left) GS SD Card Slot C3 Data Driver (Down Left) C4 Data Driver (Down Right) TA Tuner (PV500A ONLY) TB Tuner (PV500H/M ONLY) GK Key Switch

SD-M

SD Module (MPEG4/PHOTO view, SD recording) None serviceable. SD Module should be exchanged for service.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6 Plasma panel replacement method

6.1. Remove the Back cover.

1. See Service Hint (Section 5).

6.2. Remove the P-Board.

Caution:

To remove P.C.B., wait 1 minute after power was off for discharge from electrolisis capacitors.

1. Disconnect the couplers (P2, P5, P9, P10, P11, P12, P23, P25 and P30).

2. Remove the screws (×6

) and remove the P-Board.

6.3. Remove the PB-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (PB5, PB7, PB30, PB31, PB33 and PB34).

3. Remove the screws (×3 metal frame.

4. Remove the screws (× 4

) and remove the PB-Board

) and remove the PB-Board.

6.4. Remove the D-Board

1. Remove the PB-Board.

2. Disconnect the couplers (D3, D5, D20 and D25) and

3. Disconnect the flexible cables (D31, D32, D33 and D34).

4. Remove the screws (×4

) and remove the D-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.5. Remove the rear terminal cover

1. Remove the screws (×4 ), and rhe screw (×7 ).

2. Remove the rear terminal cover.

6.6. Remove the metal frame

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (D3, D5, H7, P10 and PB7) and

relay connector (SP-R, SP-L).

3. Remove the screws (×4

) remove the metal frame.

6.7. Remove the DT-Board and DVBoard

1. Remove the screws (×1 ).

2. Disconnect the coupler (DV15).

3. Remove the screws (×1

) and remove the DV-Board.

6.8. Remove the DG-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (DG3 and DG5).

3. Disconnect the flexible cables (DG1, DG2 and DG20).

4. Remove the screws (×2

) and remove the DG-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.9. Remove the H-Board and TA/TB-Board

1. Unlock the cable clampers to free the cable.

2. Remove the screws (×2

3. Disconnect the couplers (H52 and H53).

4. Disconnect the flexible ables (H1, H2, H30 and H50).

5. Remove the screws (×3

) and remove the TA/TB-Board.

) and remove the H-Board.

6.11. Remove the Z-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the coupler (Z1 and Z2).

3. Disconnect the flexible cable (Z50).

4. Remove the screws (×2

) and remove the Z-Board.

6.10. Remove the PA-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (PA7 and PA10).

3. Disconnect the flexible cables (PA20 and PA30).

4. Remove the screws (×4

) and remove the PA-Board.

6.12. Remove the SU-Board

1. Remove the screws (×2 ).

2. Slide the SU-Board to the left to disconnect from a coupler (SC41 - SU41) on the SC-Board and remove a coupler (SU45 or SC45).

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

3. Remove the flexible cables (SU1, SU2, SU3 and SU4) connected to the SU-Board, and remove the SU-Board.

6.13. Remove the SD-Board

1. Remove the screws (×2 ).

2. Slide the SD-Board to the left to disconnect from a coupler (SC42 - SD42) on the SC-Board and remove a coupler (SD46 or SC46).

3. Remove the flexible cables (SD1, SD2, SD3 and SD4) connected to the SD-Board, and remove the SD-Board.

6.14. Remove the SC-Board

1. Disconnect the couplers (SC2, SC20 and SC23).

2. Remove the screws (×6

) and remove the SC-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.15. Remove the SS2-Board

1. Disconnect the coupler (SS23) and disconnect the flexible cable (SS55).

2. Remove the screws (×2

) and remove the SS2-Board.

6.16. Remove the SS3-Board

1. Disconnect the coupler (SS22) and disconnect the flexible cable (SS56).

2. Remove the screws (×2

) and remove the SS3-Board.

6.17. Remove the SS-Board

1. Remove the SS2-Board and SS3-Board.

2. Disconnect the couplers (SS11, SS12, SS24, SS32 and SS34).

3. Disconnect the flexible cables (SS52 and SS53).

4. Remove the screws (×6

), and remove the SS-Board.

6.18. Remove the Fan

1. Remove the screws (×3 each) remove the fan and disconnect the relay coupler.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.19. Remove the C1-Board

1. Remove the fan .

2. Disconnect the flexible cable holder fastening screws (×8 ) and disconnect the flexible cables (CA1, CA2, CA3

and CA4).

3. Disconnect the flexible cables (C11) and disconnect the

coupler (C12) .

4. Remove the screws (×3

) and remove the C1-Board.

6.21. Remove the Speaker L, R

1. Remove the screws (×4 ) and remove the Speaker cover L, R.

6.20. Remove the C2-Board

1. Remove the fan.

2. Disconnect the flexible cable holder fastening screws (×8 ) and remove the flexible cables (CA5, CA6, CA7 and

CA8).

3. Disconnect the flexible cable (C21).

4. Remove the screws (×3

and remove the C2-Board.

), the couplers (C22 and C32)

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

2. Disconnect the relay connector L, R.

3. Remove the Speaker L, R.

6.23. Remove the C3-Board

1. Remove the flexible cable holder fastening screws (×8), and disconnect the flexible cables (CB5, CB6, CB7 and CB8).

2. Disconnect the couplers (C33 and C32), and disconnect the flexible cables (C31).

3. Remove the screws (×3

), and remove the C3-Board.

6.22. Remove the stand brackets.

1. Remove the plasma panel section from the servicing stand and lay on a flat surface such as a table (covered), with the plasma panel surface facing downward.

Spread a soft cloth or similar on the table for protection, so the panel surface is not scratched.

2. Remove the stand bracket fastening screw (×6

,×8

6.24. Remove the C4-Board

1. Remove the flexible cable holder fastening screws (×8 ) and disconnect the flexible cables (CB1, CB2, CB3 and CB4).

2. Disconnect the coupler (C43) and disconnect the flexible cables (C41).

3. Remove the screws (×3

), and remove the C4-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.25. Remove the front bracket

1. Unlock the cable clampers to free the cable.

2. Disconnect the coupler (G2) and the flexible cables (G11 and G51).

3. Remove the screws (×7

) and remove the front bracket.

6.26. Remove the G-Board

1. Remove the front bracket.

2. Disconnect the coupler (G3).

3. Remove the screws (×3 cover.

4. Remove the screws (×5

) and remove the G-Board

) and remove the G-Board unit.

6.27. Remove the GK-Board

1. Remove the G-Board.

2. Remove the GK-Board.

6.28. Remove the GS-Board and SDModule

1. Unlock the cable clampers to free the cable.

2. Disconnect the coupler (H52) and the flexible cable (G11).

3. Remove the screws (×2

(×2).

4. Remove the SD-Unit.

5. Remove the screw (×1

6. Remove the SD-Metal.

) and remove the grommets

5. Remove the screws (×3 ) and remove the G-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7. Remove the screw (×1 ).

8. Remove the SD-Module cover.

9. Disconnect the coupler (GS52) and the flexible cable (GS12).

10. Remove the screws (×2

11. Remove the GS-Board and SD-Module.

6.29. Remove the K-Board

1. Disconnect the couplers (K1).

2. Remove the screws (×2

3. Remove the K-Board.

) and remove the grommet (×1).

6.30. Remove the S-Board

1. Remove the screw (×2 ).

2. Disconnect the couplers (S1).

3. Remove the screws (×2

) and remove the S-Board.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

6.31. Remove the Plasma panel section from the Front frame (glass)

1. Remove the front frame and the plasma panel fastening

screw (×8

2. Remove the front frame and the stand brackets fastening

screw (×6

6.32. Replace the plasma panel (finished).

1. Place the new plasma panel (finished) on the flat surface of

the table (covered by a soft cloth), with the plasma panel surface facing downward.

2. Attach the C1, C2, C3-Board and the C4-Board, connect

the flexible cables (×7) from the Plasma panel to the C1, C2, C3-Board and C4-Board, and fix the flexible cable holders.

3. Attach the Hooks (left, right) and fit the stand brackets (left,

right) to the new plasma panel.

4. Place the plasma panel section on the servicing stand.

5. Attach the front frame and the each P.C.Board and so on,

to the new plasma panel.

* When fitting the front frame, be careful not to allow any debris, dust or handling residues to remain between the front glass and plasma panel.

3. For leaving the plasma panel from the front frame, pull the bottom of the front frame forward, lift, and remove.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7 Location of Lead Wiring

7.1. Lead of Wiring (1)

MAKE WIRE DRESSING AS IF ILLUSTRATED BELOW.

NOTES:

1. CONNECT CONNECTORS SURELY.

2. KEEP MODERATE SLACK IN WIRES NOT TO GIVE ANY STRESS TO CONNECTORS.

3. PLACE SAG OF P2 CONNECTION WIRES UNDER KNEES OF THE P2 CONNECTOR AS IF ILLUSTRATED BELOW.

4. MANAGE THE WIRES THAT ARE AROUND ELECTRIC FAN ASSEMBLIES NOT TO TOUCH A BLADE OF ELECTRIC FAN NOR THE EDGE OF FAN MOUNT METAL.

7.2. Lead of Wiring (2)

MAKE WIRE DRESSING AS IF ILLUSTRATD BELOW.

NOTES:

1. CONNECT CONNECTORS SURELY.

2. KEEP MODERATE SLACK IN WIRES NOT TO GIVE ANY STRESS TO CONNECTORS.

3. CLAMP WIRES SURELY.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7.3. Lead of Wiring (3)

MAKE WIRE DRESSING AS IF ILLUSTRATED BELOW.

NOTES:

1. CONNECT CONNECTORS SURELY.

2. KEEP MODERATE SLACK IN WIRES NOT TO GIVE ANY STRESS TO CONNECTORS.

3. PLACE SAG OF THE D3 CONNECTION WIRES AROUND D3 CONNECTOR.

4. MANAGE THE WIRES THAT ARE AROUND ELECTRIC FAN ASSEMBLIES NOT TO TOUCH A BLADE OF ELECTRIC FAN NOR EDGE OF FAN MOUNT METAL.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7.4. Lead of Wiring (4)

MAKE WIRE DRESSING AS IF ILLUSTRATED BELOW.

NOTES:

1. CONNECT CONNECTORS SURELY.

2. KEEP MODERATE SLACK IN WIRES NOT TO GIVE ANY STRESS TO CONNECTORS.

3. PLACE SAG OF PB5 AND PB30 WIRES AROUND EACH CONNECTOR OF THEM.

4. MANAGE THE WIRES THAT ARE AROUND THE ELECTRIC FAN ASSEMBLIES NOT TO TOUCH A BLADE OF ELECTRIC FAN NOR EDGE OF A FAN MOUNT METAL.

5. MANAGE WIRES NOT TO PRESS THE MC701 OF P-PCB WITH THEM.

6. PASS THE SS11 WIRE AND THE SS12 WIREBETWEEN A M8 BOSS AND P-PCB, MANAGE THEM TO KEEP AWAY FROM A M8 BOSS.

7. PAY ATTENTION NOT TO GIVE ANY LOAD TO THE MC701 OF P-PCB.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7.5. Lead of Wiring (5)

1. Make wire dressing as if illustrated below.

Keep moderate slack in wires not give any stress to the connectors.

2. Fix a barrier to a glass holder bottom ass’y by a screw.

Handle a barrier not to protrude from the back end of a bottom shield.

Torque of the screw THEL035N should be 80 to 120 N

Screws of THEL035N are not reuseble.

cm.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7.6. Lead of Wiring (6)

MAKE WIRE DRESSING AS IF ILLUSTRATED BELOW.

NOTES:

1. CONNECT CONNECTORS SURELY.

2. KEEP MODERATE SLACK IN WIRES NOT TO GIVE ANY STRESS TO CONNECTORS.

3. CONNECT FFC SURELY.

PAY ATTENTION NOT TO MAKE WRONG DIRECTION CONNECTION NOR INCOMPLETE CONNECTION.

4. BEFORE CONNECTING FLEXIBLE CABLES, CLEAD CONNECTION PARTS BY BLOWING AIR.

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

7.7. Lead of Wiring (7)

CONNECT SPEAKER WIRES, THEN HAUL THEIR SAG TO THE DIRECTION OF TUNER UNIT.

CLAMP A SS34-S1 WIRE, SS32-C32 WIRE, LEFT SQUAWKER WIRE AND LEFT WOOFER WIRE NOT TO HAVE A SAG OF THE SS34-S1 WIRE.

8 Self Check

1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set.

2. To get into the Self -Check mode press the Down ( timepressingtheRecall buttonontheremotecontrol,andthescreenwillshow:

) button on the customer controls at the front of the set, at the same

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

If the CCU ports have been checked and found to be incorrect or not located then “--” will appear in place of “O.K.”.

Display Ref.No. Description Board MEM IC1107 EEPROM DG-Board GC4P IC4054 Global Core Processor DG-Board GC3FS IC4013 Global Core for Sub DG-Board HAD IC4012 OSD RGB A/D DG-Board AVSW1 IC2105 Video SW H-Board AVSW2 IC3005 Audio SW H-Board Tun1 TU001 Tuner TA/TB-Board Tun2 TU002 Tuner TB-Board DAC1 IC1106 Ext. DAC DG-Board DAC2 IC1116 Ext. DAC DG-Board DAC3 IC3006 Ext. DAC H-Board DAC4 - - MSP IC2106 Multi Sound Processor H-Board SOUND IC2300 Sound Control Z-Board PANEL IC9003 Convert Micom D-Board SDM SD-Module MPEG4/PHOTO view, SD recording SD-Module HDMI IC5003 HDMI I/F Reciever DV-Board ADV IC4005 10bit A/D DG-Board

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

8.1. Power LED Blinking timing chart

1. Subject

Information of LED Flashing timing chart.

2. Contents

When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.

8.2. No Power

First check point

There are following 3 states of No Power indication by power LED.

1. No lit

2. Green is lit then turns red blinking a few seconds later.

3. Only red is lit.

1. No lit

8.3. No Picture

TH-42PV500A / TH-42PV500H / TH-42PV50 0M

8.4. Local screen failure

Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area.

Fig-1

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