DOWNLOAD Panasonic TH-42PH20E Service Manual ↓ Size: 15.03 MB | Pages: 127 in PDF or view online for FREE

Model
TH-42PH20E
Pages
127
Size
15.03 MB
Type
PDF
Document
Service Manual
Brand
Device
Plasma / GPH13D CHASSIS
File
th-42ph20e.pdf
Date

Panasonic TH-42PH20E Service Manual ▷ View online

25
TH-42PH20E
8.15.2. Removal of V1-Board and V2-Board
1. Remove the Front Glass.
(Refer to remove of Front Glass).
2. Remove the Fixed Angle (bottom-front).
3. Remove 2 screws (D).
4. Disconnect the connector (V11).
5. Remove 1 hook and then remove V1-Board
6. Remove 2 hooks and then remove the Power Button
Shield.
7. Remove 3 hooks and then remove the Power Button and
Power Button Spring.
8. Disconnect the connector (V22) and then remove V2-
Board.
9. Remove 2 hooks and then remove the 5 Key Button from
V2-Board.
8.15.3. Removal of Cabinet Assy
1. Remove the Front Glass.
(Refer to Removal of Front Glass)
2. Remove V1-Board and V2-Board.
(Refer to Removal of V1-Board and V2-Board)
3. Remove the LED Panel and Remote Sensor Panel.
4. Remove the Rear Cover Hook Left and Rear Cover Hook
Right.
5. Remove the Fixed Angle (upper-front).
6. Remove the Cabinet Assy.
26
TH-42PH20E
8.16. Removal of Plasma Display
Panel
The C1, C2 Boards are connected with the plasma display
panel for the repair. 
1. Disconnect the Fan Relay Connectors.
2. Remove 2 screws and then remove the Fan Block.
3. Disconnect the connectors (DS13, P9).
4. Remove the flexible cable from the connector (DS1).
5. Remove 4 screws and then remove the Slot Block.
6. Disconnect the connectors (A8, A9, A10, A11, A12, A13,
A22, A25, A35).
7. Remove the flexible cables from the connectors (C11,
C21, SN20).
8. Remove 3 screws ( ).
9. Remove 2 screws ( ) and then remove the A-Board
Block.
10. Remove 1 screw and then remove the Speaker Terminal
Block.
11. Remove 2 screws and then remove the S1-Board Block.
12. Remove the flexible cables from the connectors (SN11,
SN12, SN13, SN14, SN15, SN16, SN17, SN18).
13. Disconnect the connectors (SN2, SN3).
14. Remove 8 screws and then remove SN-Board.
27
TH-42PH20E
15. Disconnect the connectors (C23, C25, SS3, SS11,
SS23).
16. Remove the flexible cables from the connectors (SS53A,
SS55A).
17. Remove 6 screws and then remove SS-Board.
18. Remove 9 screws and then remove P-Board.
19. Remove the flexible cable from the connectors (C10,
C20).
20. Remove 4 screws ( ) and then remove the Handle Fixing
Metal (L, R).
21. Remove 3 screws ( ).
Note: when fixing Handle Fixing Metal (L, R)
• Screw on 2 screws (1) firstly.
22. Pull the bottom of the Plasma Display Panel forward
(arrow1).
23. Slide the Plasma Display Panel and then remove the
Plasma Display Panel (arrow2).
24. Remove 12 screws and then remove the Hanger Assy (L,
R), the Stand Pole Bracket (L, R) and the Hanger Fixing
Metal Assy (L, R).
25. Exchange the Plasma Display Panel.
28
TH-42PH20E
9 Measurements and Adjustments
9.1.
Adjustment
9.1.1.
Vsus selection
Caution:
When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.
Procedure
1. Access the CAT mode.
Press and hold the Volume down / - button on the front panel of the unit and press the RECALL button on the remote con-
trol 3 times quickly within 2 second, this will place the unit into the CAT mode.
2. Select the IIC mode.
3. Go into item [VSUS] in the IIC mode by Up / Down buttons. LOW or HIGH will be displayed.
4. Press [OK] button to go to TEST stage.
White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the On-
Screen Display.
5. Press [VOL (-)] button to set to LOW.
6. In LOW setting
a. If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage.
b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [3] button
to go to CONF stage if the symptom is improved.
7. Press [OK] button in CONF stage to store LOW or HIGH.
8. Exit Service Mode by pressing [Power] button.
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