TH-42PV500a
© 2005 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TH-42PV500A
TH-42PV500H
TH-42PV500M
GP8DA Chassis
High Definition Plasma Television
Specifications
Power Source
A
C 220-240 V, 50 / 60 Hz
Power Consumption
A
verage use : 341 W
Standby condition : 0.3 W
Plasma Display panel
Drive method
A
C type
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)
786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots]
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
VGA, SVGA, XGA
SXGA (compressed)
Horizontal scanning frequency 31 - 69 kHz
Vertical scanning frequency 59 - 86 Hz
ORDER NO.ITD0508044CE
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)
P
B
/C
B
,P
R
/C
R
± 0.35 Vp-p
AV3 Input
AUDIO L - R RCA PIN Type × 2 0.5 Vrms
VIDEO RCA PIN Type × 1 1.0 Vp-p (75 W)
2
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
1 Applicable signals 5
2 Safety Precautions
6
2.1. General Guidelines
6
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
7
4 About lead free solder (PbF)
8
5 Service Hint
9
6 Plasma panel replacement method
10
6.1. Remove the Back cover.
10
6.2. Remove the P-Board.
10
6.3. Remove the PB-Board
10
6.4. Remove the D-Board
10
6.5. Remove the rear terminal cover
11
6.6. Remove the metal frame
11
6.7. Remove the DT-Board and DV-Board
11
6.8. Remove the DG-Board
11
6.9. Remove the H-Board and TA/TB-Board
12
6.10. Remove the PA-Board
12
6.11. Remove the Z-Board
12
6.12. Remove the SU-Board
12
6.13. Remove the SD-Board
13
6.14. Remove the SC-Board
13
6.15. Remove the SS2-Board
14
6.16. Remove the SS3-Board
14
6.17. Remove the SS-Board
14
6.18. Remove the Fan
14
6.19. Remove the C1-Board
15
6.20. Remove the C2-Board
15
6.21. Remove the Speaker L, R
15
6.22. Remove the stand brackets.
16
6.23. Remove the C3-Board
16
6.24. Remove the C4-Board
16
6.25. Remove the front bracket
17
6.26. Remove the G-Board
17
6.27. Remove the GK-Board
17
6.28. Remove the GS-Board and SD-Module
17
6.29. Remove the K-Board
18
6.30. Remove the S-Board
18
6.31. Remove the Plasma panel section from the Front frame
(glass)
19
6.32. Replace the plasma panel (finished).
19
7 Location of Lead Wiring
20
7.1. Lead of Wiring (1)
20
7.2. Lead of Wiring (2)
21
7.3. Lead of Wiring (3)
22
7.4. Lead of Wiring (4)
23
7.5. Lead of Wiring (5)
24
7.6. Lead of Wiring (6)
25
7.7. Lead of Wiring (7)
26
8 Self Check
27
8.1. Power LED Blinking timing chart
28
8.2. No Power
28
8.3. No Picture
29
8.4. Local screen failure
30
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)
P
B
/C
B
,P
R
/C
R
± 0.35 Vp-p
Others HDMI TYPE A Connector
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 (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.
CONTENTS
Page Page
3
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
9 Service Mode Function 31
9.1. How to enter SERVICE 1
31
9.2. How to enter SERVICE 2
31
9.3. Option Description
33
9.4. Option Code
35
10 Adjustment Procedure
36
10.1. Driver Set-up
36
10.2. Initialization Pulse Adjust
37
10.3. P.C.B. (Printed Circuit Board) exchange
37
10.4. Adjustment Volume Location
38
10.5. Test Point Location
38
11 Adjustment
39
11.1. PAL panel white balance adjustment
39
11.2. 1080i white balance adjustment
40
11.3. Sub bright adjustment
41
11.4. ABL adjustment
42
11.5. TEXT Vref Auto Adjustment
43
12 Hotel mode
44
13 Conductor View
45
13.1. P-Board
45
13.2. PA-Board
48
13.3. PB-Board
49
13.4. H-Board
50
13.5. DG-Board
52
13.6. TA-Board
54
13.7. TB-Board
55
13.8. DV-Board
56
13.9. Z-Board
57
13.10. D-Board
58
13.11. C1-Board
61
13.12. C2-Board
62
13.13. C3-Board
63
13.14. C4-Board
64
13.15. SC-Board
65
13.16. SU-Board
68
13.17. SD-Board
69
13.18. SS, SS2 and SS3-Board
70
13.19. G-Board
72
13.20. GK, GS, K and S-Board
73
14 Block and Schematic Diagram
75
14.1. Schematic Diagram Notes
75
14.2. Main Block Diagram
76
14.3. P-Board Block Diagram
77
14.4. P-Board (1 of 2) Schematic Diagram
78
14.5. P-Board (2 of 2) Schematic Diagram
79
14.6. PA and PB-Board Block Diagram
80
14.7. PA-Board Schematic Diagram
81
14.8. PB-Board Schematic Diagram
82
14.9. H, TA and TB-Board Block Diagram
83
14.10. TA and TB-Board Schem atic Diagram
84
14.11. H-Board (1 of 3) Schematic Diagram
85
14.12. H-Board (2 of 3) Schematic Diagram
86
14.13. H-Board (3 of 3) Schematic Diagram
87
14.14. G, GK, GS, K and S-Board Block Diagram
88
14.15. G-Board Schematic Diagram
89
14.16. GK, K, and S-Board Schematic Diagram
90
14.17. GS-Board Schematic Diagram
91
14.18. DG-Board (1 of 2) Block Diagram
92
14.19. DG-Board (2 of 2) Block Diagram
93
14.20. DG-Board (1 of 6) Schematic Diagram
94
14.21. DG-Board (2 of 6) Schematic Diagram
95
14.22. DG-Board (3 of 6) Schematic Diagram
96
14.23. DG-Board (4 of 6) Schematic Diagram
97
14.24. DG-Board (5 of 6) Schematic Diagram
98
14.25. DG-Board (6 of 6) Schematic Diagram
99
14.26. DV-Board Block Diagram
100
14.27. DV-Board Schematic Diagram
101
14.28. Z-Board Block Diagram
102
14.29. Z-Board (1 of 2) Schematic Diagram
103
14.30. Z-Board (2 of 2) Schematic Diagram
104
14.31. D-Board Block Diagram
105
14.32. D-Board (1 of 6) Schematic Diagram
106
14.33. D-Board (2 of 6) Schematic Diagram
107
14.34. D-Board (3 of 6) Schematic Diagram
108
14.35. D-Board (4 of 6) Schematic Diagram
109
14.36. D-Board (5 of 6) Schematic Diagram
110
14.37. D-Board (6 of 6) Schematic Diagram
111
14.38. C1, C2, C3 and C4-Board Block Diagram
112
14.39. C1-Board (1 of 2) Schematic Diagram
113
14.40. C1-Board (2 of 2) Schematic Diagram
114
14.41. C2-Board (1 of 2) Schematic Diagram
115
14.42. C2-Board (2 of 2) Schematic Diagram
116
14.43. C3-Board (1 of 2) Schematic Diagram
117
14.44. C3-Board (2 of 2) Schematic Diagram
118
14.45. C4-Board (1 of 2) Schematic Diagram
119
14.46. C4-Board (2 of 2) Schematic Diagram
120
14.47. SC-Board Block Diagram
121
14.48. SC-Board (1 of 2) Schematic Diagram
122
14.49. SC-Board (2 of 2) Schematic Diagram
123
14.50. SU-Board Block Diagram
124
14.51. SU-Board (1 of 2) Schematic Diagram
125
14.52. SU-Board (2 of 2) Schematic Diagram
126
14.53. SD-Board Block Diagram
127
14.54. SD-Board (1 of 2) Schematic Diagram
128
14.55. SD-Board (2 of 2) Schematic Diagram
129
14.56. SS, SS2 and SS3-Board Block Diagram
130
14.57. SS, SS2 and SS3-Board Schem atic Diagram
131
15 Parts Location & Mechanical Replacement Parts List
133
15.1. Parts Location
133
15.2. Packing Exploded Views (1)
134
15.3. Packing Exploded Views (2)
135
15.4. Packing Exploded Views (3)
136
15.5. Mechanical Replacement Parts List
137
16 Electrical Replacement Parts List
139
16.1. Replacement Parts List Notes
139
16.2. Electrical Replacement Parts List
140
4
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
1 Applicable signals
5
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
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.
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.
6
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).
7
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
stamped on the back of PCB.
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.
8
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
5 Service Hint
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)
SD-M
SD Module (MPEG4/PHOTO view, SD recording)
None serviceable.
SD Module should be exchanged for service.
C4 Data Driver (Down Right)
TA Tuner (PV500A ONLY)
TB Tuner (PV500H/M ONLY) GK Key Switch
9
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
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
) and remove the PB-Board
metal frame.
4. Remove the screws (× 4
) 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.
6 Plasma panel replacement method
10
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 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.
11
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
) and remove the TA/TB-Board.
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 H-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.
6.11. 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.
6.12. 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).
12
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.
13
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.
14
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.
6.20. 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
), the couplers (C22 and C32)
and remove the C2-Board.
6.21. Remove the Speaker L, R
1. Remove the screws (×4 ) and remove the Speaker cover
L, R.
15
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
2. Disconnect the relay connector L, R.
3. Remove the Speaker L, R.
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
).
6.23. 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.
6.24. 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.
16
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
) and remove the G-Board
cover.
4. Remove the screws (×5
) and remove the G-Board unit.
5. Remove the screws (×3 ) and remove the G-Board.
6.27. Remove the GK-Board
1. Remove the G-Board.
2. Remove the GK-Board.
6.28. Remove the GS-Board and SD-
Module
1. Unlock the cable clampers to free the cable.
2. Disconnect the coupler (H52) and the flexible cable (G11).
3. Remove the screws (×2
) and remove the grommets
(×2).
4. Remove the SD-Unit.
5. Remove the screw (×1
).
6. Remove the SD-Metal.
17
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
) and remove the grommet (×1).
3. Remove the K-Board.
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.
18
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
).
3. For leaving the plasma panel from the front frame, pull the
bottom of the front frame forward, lift, and remove.
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.
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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.
20
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
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.
21
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.
22
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.
23
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
cm.
Screws of THEL035N are not reuseble.
24
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.
25
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.
26
TH-42PV500A / TH-42PV500H / TH-42PV50 0M
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 (
) button on the customer controls at the front of the set, at the same
timepressingtheRecall buttonontheremotecontrol,andthescreenwillshow:
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
27
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
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TH-42PV500A / TH-42PV500H / TH-42PV50 0M
8.3. No Picture
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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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TH-42PV500A / TH-42PV500H / TH-42PV50 0M
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