TH-50PX60U
© 2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TH-50PX60U
GP9DU Chassis
Digital High Definition Plasma Television
Specifications
Power Source AC 120 V, 50/60 Hz
Power Consumption
Maximum 515 W
Standby condition 0.2 W
Plasma Displ ay panel
Drive method AC type
Aspect Ratio 16 : 9
Contrast Ratio 3000 : 1
Visible screen size
(No. of pixels)
127 cmV
43.6 ” × 24.5 ” × 50.0 ” (1,106 mm × 622 mm × 1,269 mm)
1,049,088 (1,366 (W) × 768 (H)) [4,098 × 768 dots]
Sound
Speaker 4.8 ” × 2.4 ” (120 mm × 60 mm) × 2 pcs, 8W
Audio Output 20 W [10 W + 10 W] (10 % THD)
Channel Capability (Digital/Analog) VHF/UHF: 2 - 69, CATV: 1 - 135
Operating Conditions Temperature: 32 °F - 104 °F (0 °C - 40 °C)
Humidity: 20 % - 80 % RH (non-condensing)
Connection Terminals
INPUT 1-3 VIDEO: RCA PIN Type × 1 1.0 V [p-p] (75 W)
S-VIDEO: Mini DIN 4-pin Y: 1.0 V [p-p] (75 W) C: 0.286 V [p-p] (75 W)
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
COMPONENT VIDEO
INPUT 1-2
Y: 1.0 V [p-p] (including synchronization)
P
B
,P
R
: ± 0.35 V [p-p]
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
HDMI 1-2 TYPE A Connector
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
Card slot SD CARD slot × 1
AV PROG. OUT VIDEO: RCA PIN Type × 1 1.0 V [p-p] (75 W)
ORDER NO.MTNC060264CE
B19 Canada: B05
1 Applicable signals 4
2 Safety Precautions
4
2.1. General Guidelines
4
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
5
4 About lead free solder (PbF)
6
5 Service Hint
7
6 Plasma panel replacement method
8
6.1. Remove the Back cover
8
6.2. Remove the fan
8
6.3. Remove the rear terminal cover
8
6.4. Remove the P-Board
8
6.5. Remove the PA-Board
9
6.6. Remove the tuner unit
9
6.7. Remove the DT-Board
10
6.8. Remove the DG-Board
10
6.9. Remove the H-Board
11
6.10. Remove the HC-Board
11
6.11. Remove the D-Board
11
6.12. Remove the SU-Board
11
6.13. Remove the SD-Board
12
6.14. Remove the SC-Board
12
6.15. Remove the SS2-Board
12
6.16. Remove the SS3-Board
12
6.17. Remove the SS-Board
13
6.18. Remove the C1-Board
13
6.19. Remove the C2-Board
13
6.20. Remove the C3-Board
13
6.21. Remove the stand brackets
14
6.22. Remove the C4-Board
14
6.23. Remove the C5-Board
14
6.24. Remove the C6-Board
14
6.25. Remove the front bracket
15
6.26. Remove the G-Board, GK-Board and GS-Board
15
6.27. Remove the speaker L, R
15
6.28. Remove the S-Board
15
6.29. Remove the K-Board
16
6.30. Remove the Plasma panel section from the Front frame
(glass)
16
6.31. Replace the plasma panel (finished)
16
7 Location of Lead Wiring
17
7.1. Lead of Wiring (1)
17
7.2. Lead of Wiring (2)
18
7.3. Lead of Wiring (3)
19
7.4. Lead of Wiring (4)
20
7.5. Lead of Wiring (5)
21
7.6. Lead of Wiring (6)
22
8 Self-check Function
23
8.1. Check of the IIC bus lines
23
8.2. Power LED Blinking timing chart
25
8.3. No Power
26
8.4. No Picture
27
8.5. Local screen failure
28
9 Serviceman Mode
29
9.1. How to enter into Serviceman Mode
29
9.2. Contents of adjustment mode
29
9.3. Memory edit mode
30
9.4. Device data mode
31
10 Adjustment Procedure
32
10.1. Driver Set-up
32
10.2. Initialization Pulse Adjust
33
10.3. P.C.B. (Printed Circuit Board) exchange
33
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
DIGITAL AUDIO OUT PCM/Dolby Digital, Fiber Optic
FEATURES 3D Y/C FILTER
CLOSED CAPTION V-Chip
Photo Viewer
Dimensions (W × H × D)
Including pedestal 47.7 ” × 34.8 ” × 14.6 ” (1,210 mm × 882 mm × 371 mm)
TV Set only 47.7 ” × 32.2 ” × 3.8 ” (1,210 mm × 818 mm × 95 mm)
Weight
Including pedestal 93.7 lb. (42.5 kg)
TV Set only 88.2 lb. (40 kg)
Note:
Design and Specifications are subject change without notice.
Weight and Dimensions shown are approximate.
CONTENTS
Page Page
2
TH-50PX60U
10.4. Adjustment Volume Location 34
10.5. Test Point Location
34
11 Adjustment
35
11.1. White balance adjustment
35
11.2. Sub bright adjustment
37
11.3. ABL operation level adjustment
38
12 Hotel mode
39
13 Conduct Views
41
13.1. P-Board
41
13.2. PA-Board
44
13.3. H-Board
46
13.4. G and GS-Board
48
13.5. GK, HC, K and S-Board
49
13.6. DG-Board
50
13.7. DT-Board
52
13.8. D-Board
54
13.9. C1-Board
56
13.10. C2-Board
57
13.11. C3-Board
58
13.12. C4-Board
59
13.13. C5-Board
60
13.14. C6-Board
61
13.15. SC-Board
62
13.16. SU-Board
65
13.17. SD-Board
66
13.18. SS-Board
67
13.19. SS-Board
69
14 Block and Sche matic Diagram
71
14.1. Schematic Diagram Note
71
14.2. Main Block Diagram
72
14.3. P-Board Block Diagram
73
14.4. P-Board (1 of 2) Schematic Diagram
74
14.5. P-Board (2 of 2) Schematic Diagram
75
14.6. PA-Board Block Diagram
76
14.7. PA-Board (1 of 3) Schematic Diagram
77
14.8. PA-Board (2 of 3) Schematic Diagram
78
14.9. PA-Board (3 of 3) Schematic Diagram
79
14.10. H-Board Block Diagram
80
14.11. H-Board (1 of 3) Schematic Diagram
81
14.12. H-Board (2 of 3) Schematic Diagram
82
14.13. H-Board (3 of 3) Schematic Diagram
83
14.14. G, GK, HC, K and S-Board Block Diagram
84
14.15. G-Board Schematic Diagram
85
14.16. GK, K, HC and S-Board Schematic Diagram
86
14.17. DG-Board (1 of 3) Block Diagram
87
14.18. DG-Board (2 of 3) Block Diagram
88
14.19. DG-Board (3 of 3) Block Diagram
89
14.20. DG-Board (1 of 8) Schematic Diagram
90
14.21. DG-Board (2 of 8) Schematic Diagram
91
14.22. DG-Board (3 of 8) Schematic Diagram
92
14.23. DG-Board (4 of 8) Schematic Diagram
93
14.24. DG-Board (5 of 8) Schematic Diagram
94
14.25. DG-Board (6 of 8) Schematic Diagram
95
14.26. DG-Board (7 of 8) Schematic Diagram
96
14.27. DG-Board (8 of 8) Schematic Diagram
97
14.28. DT and GS-Board Block Diagram
98
14.29. DT-Board (1 of 6) Schematic Diagram
99
14.30. DT-Board (2 of 6) Schematic Diagram
100
14.31. DT-Board (3 of 6) Schematic Diagram
101
14.32. DT-Board (4 of 6) Schematic Diagram
102
14.33. DT-Board (5 of 6) Schematic Diagram
103
14.34. DT-Board (6 of 6) Schematic Diagram
104
14.35. D-Board (1 of 2) Block Diagram
105
14.36. D-Board (2 of 2) Block Diagram
106
14.37. D-Board (1 of 8) Schematic Diagram
107
14.38. D-Board (2 of 8) Schematic Diagram
108
14.39. D-Board (3 of 8) Schematic Diagram
109
14.40. D-Board (4 of 8) Schematic Diagram
110
14.41. D-Board (5 of 8) Schematic Diagram
111
14.42. D-Board (6 of 8) Schematic Diagram
112
14.43. D-Board (7 of 8) Schematic Diagram
113
14.44. D-Board (8 of 8) Schematic Diagram
114
14.45. C1, C2, C5 and C6-Block Diagram
115
14.46. C3, C4, SS, SS2 and SS3-Board Block Diagram
116
14.47. C1-Board (1 of 2) Schematic Diagram
117
14.48. C1-Board (2 of 2) Schematic Diagram
118
14.49. C2-Board (1 of 3) Schematic Diagram
119
14.50. C2-Board (2 of 3) Schematic Diagram
120
14.51. C2-Board (3 of 3) Schematic Diagram
121
14.52. C3-Board (1 of 2) Schematic Diagram
122
14.53. C3-Board (2 of 2) Schematic Diagram
123
14.54. C4-Board (1 of 2) Schematic Diagram
124
14.55. C4-Board (2 of 2) Schematic Diagram
125
14.56. C5-Board (1 of 3) Schematic Diagram
126
14.57. C5-Board (2 of 3) Schematic Diagram
127
14.58. C5-Board (3 of 3) Schematic Diagram
128
14.59. C6-Board (1 of 2) Schematic Diagram
129
14.60. C6-Board (2 of 2) Schematic Diagram
130
14.61. SS, SS2 and SS3-Board Schematic Diagram
131
14.62. SC, SU and SD-Board Block Diagram
132
14.63. SC-Board (1 of 2) Schematic Diagram
133
14.64. SC-Board (2 of 2) Schematic Diagram
134
14.65. SU-Board (1 of 2) Schematic Diagram
135
14.66. SU-Board (2 of 2) Schematic Diagram
136
14.67. SD-Board (1 of 2) Schematic Diagram
137
14.68. SD-Board (2 of 2) Schematic Diagram
138
15 Parts Locatio n & Mech anica l Replaceme n t Parts List
139
15.1. Parts Location
139
15.2. Packing Exploded Views
140
15.3. Mechanical Replacement Parts List
141
16 Elect ri cal Replacement Parts List
142
16.1. Replacement Parts List Notes
142
16.2. Electrical Replacement Parts List
143
3
TH-50PX60U
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 ACplugintheAC outlet andrepeateach 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.
1 Applicable signals
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.
4
TH-50PX60U
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).
5
TH-50PX60U
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.
6
TH-50PX60U
5 Service Hint
Board Name Function Board Name Function
P Power Supply C1 Data Driver (Upper Right)
PA DC-DC Converter
Speaker out, Audio AMP, Fan Control
C2 Data Driver (Upper Center)
C3 Data Driver (Upper Left)
H AV Terminal, AV Switch C4 Data Driver (Lower Left)
DG Digital Signal Processor, Micom, HDMI Interface C5 Data Driver (Lower Center)
DT ATSC Interface C6 Data Driver (Lower Right)
D Format Converter, Plasma AI, Sub-Field Processor SC Scan Drive
GS SD Card Slot SU Scan out (Upper)
K Remote receiver, Power LED SD Scan out (Lower)
S Power Switch SS Sustain Drive
G Front Terminal SS2 Sustain Connector (Upper)
GK Key Switch SS3 Sustain Connector (Lower)
HC Jig Connection
7
TH-50PX60U
6.1. Remove the Back cover
1. See Service Hint (Section 5)
6.2. Remove the fan
1. Disconnect the relay couplers.
2. Remove the screws (×3
each) and remove the fans.
6.3. Remove the rear terminal
cover
1. Remove the screws (×8 ,×5 ,×2 ).
2. Remove the rear terminal cover.
6.4. Remove the P-Board
Caution:
To remove P.C.B. wait 1 minute after power was off for
discharge from electrolysis capacitors.
1. Disconnect the couplers (P2, P5, P9, P10, P11, P12, P23
and P25).
2. Remove the screws (×6
) and remove the P-Board unit.
3. Remove the screws (×9 ) on the back side.
6 Plasma panel replacement method
8
TH-50PX60U
4. Remove the screws (×5 ).
5. Remove the molding props (×8
).
6. Remove the P-Board.
Note:
When assembling the P-Board, the position of each hole of
the insulation sheets (A and B) is set to the position of each
hole of the P-Board, then assemble them. (
marks
indicate setting positions.)
6.5. Remove the PA-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (PA2, PA5, PA10, PA31, PA32,
PA33, PA34 and PA40).
3. Disconnect the flexible cable (PA20).
4. Remove the screws (×4
) and remove the earth cable.
5. Remove the PA-Board.
6.6. Remove the tuner unit
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (DG5, G51, GS52, PA40 and earth
cable).
3. Disconnect the flexible cables (DG3 and PA20).
4. Remove the screws (×4
) remove the tuner unit.
9
TH-50PX60U
6.7. Remove the DT-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (HC06 and DT10).
3. Remove the screws (×5
) remove the DT-Board unit.
(Be careful the coupler (DT12-DG22) when remove the DT-
Board unit.)
4. Disconnect the coupler (DT07).
5. Remove the screws (×2
).
6. Remove the DT-Board metal cover and DT-Board.
6.8. Remove the DG-Board
1. Remove the DT-Board. (See section 6.7.)
2. Remove the screws (×8
) and remove the DT-Board
metal frame.
3. Disconnect the coupler (DG2).
4. Disconnect the flexible cables (DG1, DG15 and DG20).
5. Remove the screw (×1
) remove the DG-Board.
10
TH-50PX60U
6.9. Remove the H-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (H2, H40 and H51).
3. Disconnect the flexible cable (H1).
4. Remove the screws (×6
) and remove the H-Board.
6.10. Remove the HC-Board
1. Disconnect the couple (HC06).
2. Disconnect the flexible cable (HC15).
3. Remove the screws (×2
) and remove the HC-Board.
6.11. Remove the D-Board
1. Remove the tuner unit. (See section 6.6.)
2. Disconnect the couplers (D5, D20 and D25).
3. Disconnect the flexible cables (D3, D31, D32, D33 and
D34).
4. Remove the screws (×4
) and remove the D-Board.
6.12. Remove the SU-Board
1. Remove the screws (×3 ).
2. Remove the flexible cables (SU1, SU2, SU3 and SU4) and
remove the bridge connector (SU45).
3. Slide the SU-Board to the left to disconnect from a coupler
(SC41-SU41) on the SC-Board and remove the SU-Board.
11
TH-50PX60U
6.13. Remove the SD-Board
1. Remove the screws (×3 ).
2. Remove the flexible cables (SD1, SD2, SD3 and SD4) and
remove the bridge connector (SD46).
3. Slide the SD-Board to the left to disconnect from a coupler
(SC42-SD42) on the SC-Board and remove the SD-Board.
6.14. Remove the SC-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (SC2, SC20 and SC23).
3. Remove the screws (×9
) and remove the SC-Board.
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.
12
TH-50PX60U
6.17. Remove the SS-Board
1. Remove the SS2-Board and SS3-Board. (See section 6.15.
and 6.16)
2. Disconnect the couplers (SS11, SS12, SS33, SS43 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 C1-Board
1. Remove the flexible cables holder fastening screws (×6
).
2. Disconnect the flexible cables (CA1, CA2 and CA3).
3. Disconnect the flexible cable (C10).
4. Remove the screws (×5
) and remove the C1-Board.
6.19. Remove the C2-Board
1. Remove the flexible cables holder fastening screws (×8
).
2. Disconnect the flexible cables (CA4, CA5, CA6 and CA7).
3. Disconnect the flexible cables (C20, C21 and C22).
4. Remove the screws (×5
) and remove the C2-Board.
6.20. Remove the C3-Board
1. Remove the flexible cables holder fastening screws (×8
).
2. Disconnect the flexible cables (CA8, CA9, CA10 and
CA11).
3. Disconnect the flexible cables (C31 and C32).
4. Disconnect the coupler (C33).
5. Remove the screws (×5
) and remove the C3-Board.
13
TH-50PX60U
6.21. Remove the stand brackets
1. Remove the plasma panel section from the servicing stand
and lay on a fiat surface such as a table (covered) with the
plasma panel surface facing downward.
2. Remove the stand brackets (left, right)fastening screws (×6
each) and remove the stand brackets (left, right).
6.22. Remove the C4-Board
1. Remove the stand bracket (left). (See section 6.21.)
2. Remove the flexible cables holder fastening screws (×8
).
3. Disconnect the flexible cables (CB8, CB9, CB10 and
CB11).
4. Disconnect the flexible cables (C41 and C42).
5. Disconnect the couplers (C43 and C44).
6. Remove the screws (×5
) and remove the C4-Board.
6.23. Remove the C5-Board
1. Remove the flexible cables holder fastening screws (×8
).
2. Disconnect the flexible cables (CB4, CB5, CB6 and CB7).
3. Disconnect the flexible cables (C50, C51 and C52).
4. Remove the screws (×5
) and remove the C5-Board.
6.24. Remove the C6-Board
1. Remove the stand bracket (right). (See section 6.21.)
2. Remove the flexible cables holder fastening screws (×6
).
3. Disconnect the flexible cables (CB1, CB2 and CB3).
4. Disconnect the flexible cable (C60).
5. Remove the screws (×5
) and remove the C6-Board.
14
TH-50PX60U
6.25. Remove the front bracket
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (GS52, G1 and G51).
3. Remove the screws (×5
) and remove the front bracket.
6.26. Remove the G-Board, GK-
Board and GS-Board
1. Remove the front bracket. (See section 6.25.)
2. Remove the screws (×3
) and remove the metal cover.
3. Remove the screws(×3 ) from front side and remove the
front side metal frame.
4. Remove the screws (×5 ) and disconnect the couplers
(G3-GK3).
5. Remove the G-Board, GK-Board and GS-Board.
6.27. Remove the speaker L, R
1. Remove the screws (×2 each) and remove the speaker
L, R.
6.28. Remove the S-Board
1. Disconnect the coupler (S1).
2. Remove the screws(×2
) and remove the S-Board metal
frame.
3. Remove the screws (×2
) and remove the S-Board.
15
TH-50PX60U
6.29. Remove the K-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (G1 and S1). (See section 6.25.
and 6.28.)
3. Remove the screws (×2
) and remove the K-Board.
6.30. Remove the Plasma panel
section from the Front frame
(glass)
1. Remove the front frame and the plasma panel fastening
screws (×6
).
2. Remove the front frame and the stand brackets fastening
screws (×4
).
3. For leaving the plasma panel from the front frame, pull the
bottom of the front frame forward, lift, and remove.
6.31. 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 and the C6-Board, connect
the flexible cables (×22) from the Plasma panel to the C1,
C2, C3, C4, C5 and the C6-Board, and fit the flexible cable
holders.
3. Attach the Hooks (left, right) and fit the stand brackets (L,
R) to the new plasma panel.
4. Place the plasma panel section on the servicing stand.
5. Attach the front frame and each P.C.Board and so on, to
the new plasma panel.
* When fitting the front frame, be careful to allow any
debris, dust or handling residue to remain between the
front glass and plasma panel.
16
TH-50PX60U
7 Location of Lead Wiring
7.1. Lead of Wiring (1)
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7.2. Lead of Wiring (2)
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7.3. Lead of Wiring (3)
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7.4. Lead of Wiring (4)
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7.5. Lead of Wiring (5)
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7.6. Lead of Wiring (6)
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Use the self-check function to test the unit.
8 Self-check Function
1. Checking the IIC bus lines
2. Power LED Blinking timing
8.1. Check of the IIC bus lines
8.1.1. How to access
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
8.1.2. Exit
Disconnect the AC cord from wall outlet.
8.1.3. Screen display
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8.1.4. Check Point
Confirm the following parts if NG was displayed.
Display Ref.No. Description Board
UV TU8200 TV Tuner DT-Board
DT1 IC8211 Front Processor DT-Board
DT2 IC8240 HDMSL PEAKS_Lite DT-Board
SND IC2603 Sound Processor H-Board
AVSWV IC2601 Video SW H-Board
AVSWA IC2602 Audio SW H-Board
ADV IC4019 10Bits A/D DG-Board
GC5 IC4037 GC5 Processor DG-Board
HDMI IC4026 HDMI I/F Reciever DG-Board
MEM IC1102 EEPROM DG-Board
RTC - - -
PANEL IC9003 MICOM D-Board
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8.2. 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.
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8.3. No Power
First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Red is lit then turns red blinking a few seconds later. (See 8.2.)
1. No lit
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8.4. No Picture
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8.5. 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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9 Serviceman Mode
9.1. How to enter into Serviceman Mode
While pressing [VOLUME ( - )] button of the main unit, press [RECALL] button of the remote control three times within 3 seconds.
9.1.1. Key command
“1” button...Main items Selection in forward direction
“2” button...Main items Selection in reverse direction
“3” button...Sub items Selection in forward direction
“4” button...Sub items Selection in reverse direction
“VOL” button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
9.1.2. Cancellation
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
9.2. Contents of adjustment mode
·
Value is shown as a hexadecimal number.
·
Preset value differs depending on models.
·
After entering the adjustment mode, take note of the value in each item before starting adjustment.
Main item Sub item Sample Data Remark
PCT-ADJ CONT GAIN 200
COLOR 38
TINT 05
BRIGHT 7FB
RFAGC1 74
AGCADJ1 FIX
RFAGC2 74
AGCADJ2 FIX
WB-ADJ R CUT 80
G CUT 80
B CUT 80
R DRV EC
G DRV FC
B DRV DB
ALL CUT 80
ALL DRV FC
WB BRG 804
OPTION SD BOOT ROM
OPT00 01
ANT-POW OFF
POF-SET NORMAL
STB-SEC SEC
EMGCY OFF
EEP COPY ALL
CLK MODE 00
CLOCK 80
CEC-CHK OFF
RM-SET CODE A
STB-CAS - -
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9.3. Memory edit mode
9.3.1. How to access
1. Select “OPTION” in Service man Mode.
2. Press [MUTE] button on the remote control for more than 3 seconds.
9.3.2. Exit
1. Press [1] button on the remote control.
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