Panasonic TH-50PV500 Service manual

ORDER NO.ITD0508045CE

High Definition Plasma Television

TH-50PV500A TH-50PV500H TH-50PV500M

GP8DA Chassis

Power Source

Power Consumption

Plasma Display panel

Drive method

Aspect Ratio 16:9

Contrast Ratio 3000:1

Screen size 50-inch (127 cmV)

(Number of pixels) 1,106 mm (W) × 622 mm (H) × 1,269 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

Receiving Systems/ Band name (PV500H/M)

C 220-240 V, 50 / 60 Hz

verage use: 461 W

Standby condition: 0.3 W

C type

1,049,088 (1,366 (W) × 768 (H)) [4,098 × 768 dots]

VGA, SVGA, XGA

SXGA (compressed)

Horizontal scanning frequency 31 - 69 kHZ

Vertical scanning frequency 59 - 86 Hz

TH-50PV500A / TH-50PV500H / TH-50PV50 0M

Receiving Systems/ Band name (PV500A)

Receiving Channels VHF BAND UHF BAND CATV

(Regular TV) (PV500H/M) 2-12 (PAL/SECAM B, K1) 21-69 (PAL G, H, I/SECAM G, K, K1) S1-S20 (OSCAR)

0-12 (PAL B AUST.) 28-69 (PAL B AUST.) 1-125 (USA CATV)

1-9 (PAL B N.Z.) 13-57 (PAL D, K) C13-C49 (JAPAN)

1-12 (PAL/SECAM D) 13-62 (NTSC M Japan) S21-S41 (HYPER)

1-12 (NTSC M Japan) 14-69 (NTSC M USA) Z1-Z37 (CHINA)

2-13 (NTSC M USA) 5A, 9A (AUST.)

Receiving Channels VHF 0 to 12 PAL B

(PV500A) 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 AUDIO L-R RCA PIN Type × 2 0.5 Vrms Input 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 AUDIO L-R RCA PIN Type × 2 0.5 Vrms Input VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)

COMPONENT Y 1.0 Vp-p (including synchronization)

PB/CB,PR/C

±0.35 Vp-p

AV3 AUDIO L-R RCA PIN Type × 2 0.5 Vrms Input 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)

AV4 AUDIO L-R RCA PIN Type × 2 0.5 Vrms Input VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)

COMPONENT Y 1.0 Vp-p (including synchronization)

PB/CB,PR/C

±0.35 Vp-p

Others HDMI Input TYPE A Connecter

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

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

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 (75 W)

Dimensions (W × H × D) 1,327 mm × 843 mm × 138 mm

Weight 52.0 kg Net

Note:

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

· ·

TH-50PV500A / TH-50PV500H / TH-50PV500M

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 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 C3-Board

6.22. Remove the Speaker L, R

6.23. Remove the stand brackets.

6.24. Remove the C4-Board

6.25. Remove the C5-Board

6.26. Remove the C6-Board

6.27. Remove the front bracket

6.28. Remove the G-Board

6.29. Remove the GK-Board

6.30. Remove the GS-Board and SD-Module

6.31. Remove the K-Board

6.32. Remove the S-Board

6.33. Remove the Plasma panel section from the Front frame

(glass)

6.34. 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

9 Service Mode Function

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-Boa rd

13.11. C1-Bo ard

13.12. C2-Bo ard

13.13. C3-Bo ard

13.14. C4-Bo ard

13.15. C5-Bo ard

13.16. C6-Bo ard

13.17. SC-Bo ard

13.18. SU-Bo ard

13.19. SD-Bo ard

13.20. SS-Bo ard

13.21. G-Boa rd

13.22. 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

TH-50PV500A / TH-50PV500H / TH-50PV500M

14.5. P-Board (2 of 2) Schematic Diagram 81

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 Schematic Diagram

14.11. H-Boa rd (1 of 3) Schematic Diagram

14.12. H-Boa rd (2 of 3) Schematic Diagram

14.13. H-Boa rd (3 of 3) Schematic Diagram

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

14.15. G-Boa rd Schematic Diagram

14.16. GK, K and S-Board Schem atic Diagram

14.17. GS-B oard Schematic Diagram

14.18. DG-B oard (1 of 2) Block Diagram

14.19. DG-B oard (2 of 2) Block Diagram

14.20. DG-B oard (1 of 6) Schematic Diagram

14.21. DG-B oard (2 of 6) Schematic Diagram

14.22. DG-B oard (3 of 6) Schematic Diagram

14.23. DG-B oard (4 of 6) Schematic Diagram

14.24. DG-B oard (5 of 6) Schematic Diagram

14.25. DG-B oard (6 of 6) Schematic Diagram

14.26. DV-Bo ard Block Diagram

14.27. DV-Bo ard Schematic Diagram

14.28. Z-Boa rd Block Diagram

14.29. Z-Boa rd (1 of 2) Schematic Diagram

14.30. Z-Boa rd (2 of 2) Schematic Diagram

14.31. D-Boa rd Block Diagram

14.32. D-Boa rd (1 of 6) Schematic Diagram

14.33. D-Boa rd (2 of 6) Schematic Diagram

14.34. D-Boa rd (3 of 6) Schematic Diagram

14.35. D-Boa rd (4 of 6) Schematic Diagram

14.36. D-Boa rd (5 of 6) Schematic Diagram

14.37. D-Boa rd (6 of 6) Schematic Diagram

14.38. C1, C2, C5 and C6-Board Block Diagram

14.39. C3 and C4-Board Block Diagra m

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

14.40. C1-Bo ard (1 of 2) Schematic Diagram

14.41. C1-Bo ard (2 of 2) Schematic Diagram

14.42. C2-Bo ard (1 of 2) Schematic Diagram

14.43. C2-Bo ard (2 of 2) Schematic Diagram

14.44. C3-Bo ard (1 of 2) Schematic Diagram

14.45. C3-Bo ard (2 of 2) Schematic Diagram

14.46. C4-Bo ard (1 of 2) Schematic Diagram

14.47. C4-Bo ard (2 of 2) Schematic Diagram

14.48. C5-Bo ard (1 of 2) Schematic Diagram

14.49. C5-Bo ard (2 of 2) Schematic Diagram

14.50. C6-Bo ard (1 of 2) Schematic Diagram

14.51. C6-Bo ard (2 of 2) Schematic Diagram

14.52. SC-Bo ard Block Diagram

14.53. SC-Bo ard (1 of 2) Schematic Diagram

14.54. SC-Bo ard (2 of 2) Schematic Diagram

14.55. SU-Bo ard Block Diagram

14.56. SU-Bo ard (1 of 2) Schematic Diagram

14.57. SU-Bo ard (2 of 2) Schematic Diagram

14.58. SD-Bo ard Block Diagram

14.59. SD-Bo ard (1 of 2) Schematic Diagram

14.60. SD-Bo ard (2 of 2) Schematic Diagram

14.61. SS, SS2 and SS3-Board Block Diagram

14.62. SS-Bo ard (1 of 2), SS2 and SS3-B oard Schematic

Diagram

14.63. SS-Bo ard (2 of 2) Schematic 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

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

141

142

143

144

145

147

148

1 Applicable signals

TH-50PV500A / TH-50PV500H / TH-50PV500M

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-50PV500A / TH-50PV500H / TH-50PV500M

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-50PV500A / TH-50PV500H / TH-50PV500M

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-50PV500A / TH-50PV500H / TH-50PV500M

Board Name Function Board Name Function

P Power Supply C1 Data Driver (Up Right) PA DC-DC Converter, Power SOS C2 Data Driver (Up Center) PB Audio Power, Fan control C3 Data Driver (Up Left)

H AV Terminal, AV Switch C4 Data Driver (Down Left)

TA/TB Tuner C5 Data Driver (Down Center)

DV HDMI Interface C6 Data Driver (Down Right) DG Digital Signal Processor SC Scan Drive

Z Speaker out, Audio AMP SU Scan out (Up)

D Format Converter, Plasma Ai Processor SD Scan out (Down)

K Remote receiver, OPT SS Sustain Drive

S Power Switch SS2 Sustain Connector (Up)

SD-M SD Module (MPEG4/PHOTO view, SD recording)

None serviceable. SD Module should be exchanged for service.

SS3 Sustain Connector (Down)

G PC Card Slot, Front Terminal GS SD Card Slot GK Key Switch

TH-50PV500A / TH-50PV500H / TH-50PV500M

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, PB32, 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-50PV500A / TH-50PV500H / TH-50PV500M

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 DV-Board

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-50PV500A / TH-50PV500H / TH-50PV500M

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 (×3 ).

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-50PV500A / TH-50PV500H / TH-50PV500M

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

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. Remove the screws (×3 ).

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).

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

2. Remove the screws (×9

) and remove the SC-Board.

TH-50PV500A / TH-50PV500H / TH-50PV500M

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, SS34, SS35, SS42 and SS44).

3. Disconnect the flexible cables (SS51, SS52, SS53 and SS54).

4. Remove the screws (×7

) 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-50PV500A / TH-50PV500H / TH-50PV500M

6.19. Remove the C1-Board

1. Remove the fan.

2. Remove the flexible cables holder fastening screws (×6 ) and disconnect the flexible cables (CA1, CA2 and

CA3).

3. Disconnect the flexible cable (C10) and disconnect the

coupler (C11).

4. Remove the screw (×5

) and remove the C1-Board.

6.21. Remove the C3-Board

1. Remove the fan.

2. Remove the flexible cables holder fastening screws (×8 ) and disconnect the flexible cables (CA8, CA9, CA10

and CA11).

3. Disconnect the flexible cable (C31) and disconnect the

couplers (C33 and C35).

4. Remove the screws (×5

) and remove the C3-Board.

6.20. Remove the C2-Board

1. Remove the fan.

2. Remove the flexible cables holder fastening screws (×8 ) and disconnect the flexible cables (CA4, CA5, CA6

and CA7).

3. Disconnect the Flexible cables (C20, C21, C24 and C25)

and disconnect the couplers (C22 and C23).

4. Remove the screws (×5

) and remove the C2-Board.

6.22. Remove the Speaker L, R

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

TH-50PV500A / TH-50PV500H / TH-50PV500M

2. Disconnect the relay connector L, R.

3. Remove the Speaker L, R.

6.23. 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 (left, right) fastening screws (×4 each) and remove the stand brackets (left, right).

6.24. Remove the C4-Board

1. Remove the flexible cables holder fastening screws (×8

) and disconnct the flexible cables (CB8, CB9, CB10

and CB11).

2. Release the speaker cables from clampers.

3. Disconnect the flexible cables (C41) and disconnect the couplers (C42, C43 and C44).

4. Remove the screws (×5

) and remove the C4-Board.

TH-50PV500A / TH-50PV500H / TH-50PV500M

6.25. Remove the C5-Board

1. Remove the flexible cables holder fastening screws (×8 ) and disconnect hte flexible cables (CB4, CB5, CB6

and CB7).

2. Release the speaker cables from clampers.

3. Disconnect the flexible cables (C50, C51, C54 and C55)

and disconnect the couplers (C52 and C53).

4. Remove the screws (×5

) and remove the C5-Board.

6.27. 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.

6.28. 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.

6.26. Remove the C6-Board

1. Remove the flexible cables holder fastening screws (×6 ) and disconnect the flexible cables (CB1, CB2 and

CB3).

2. Release the speaker cables from clampers.

3. Disconnect the flexible cables (C60) and disconnect the

coupler (C61).

4. Remove the screws (×5

) and remove the C6-Board.

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

TH-50PV500A / TH-50PV500H / TH-50PV500M

6.29. Remove the GK-Board

1. Remove the G-Board.

2. Remove the GK-Board.

6.30. 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

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

10. Remove the screws (×2

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

6.31. Remove the K-Board

1. Disconnect the couplers (K1).

2. Remove the screws (×2

3. Remove the K-Board.

) and remove the grommet (×1).

7. Remove the screw (×1 ).

8. Remove the SD-Module cover.

6.32. 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-50PV500A / TH-50PV500H / TH-50PV500M

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

6.33. 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

6.34. 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, C4, C5-Board and the C6-Board,

connect the flexible cables (×7) from the Plasma panel to the C1, C2, C3, C4, C5-Board and C6-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.

TH-50PV500A / TH-50PV500H / TH-50PV500M

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

4. MANAGE P2 WIRE AND P23 WIRE SO THAT THEY PASS THE TOP SIDE OF P-PCB.

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-50PV500A / TH-50PV500H / TH-50PV500M

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

4. PLACE A SAG OF P10 WIRE IN THE TOP SIDE OF P-PCB.

TH-50PV500A / TH-50PV500H / TH-50PV500M

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. 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.

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

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

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

TH-50PV500A / TH-50PV500H / TH-50PV500M

7.5. Lead of Wiring (5)

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, CLEAN CONNECTION PARTS BY BLOWING AIR.

7.6. Lead of Wiring (6)

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

TH-50PV500A / TH-50PV500H / TH-50PV500M

7.7. Lead of Wiring (7)

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.

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-50PV500A / TH-50PV500H / TH-50PV500M

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-50PV500A / TH-50PV500H / TH-50PV500M

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-50PV500A / TH-50PV500H / TH-50PV500M

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

+ 147 hidden pages