Panasonic TH-R50EL8R Service Manual / Other ▷ View online
16
6.5.
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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7 Disassembly and Assembly Instructions
7.1.
Remove the Back cover
1. See Service Hint (Section 3)
7.2.
Remove the Rear Terminal
cover
cover
1. Remove the screws (
×4 ,
×2 ).
2. Remove the Rear Terminal cover.
7.3.
Remove the P-Board
Caution:
To remove P.C.B. wait 1 minute after power was off for dis-
charge from electrolysis capacitors.
charge from electrolysis capacitors.
1. Unlock the cable clampers to free the cable.
2. Disconnect the connectors (P2, P6, P7, P9, P11, P12 and
2. Disconnect the connectors (P2, P6, P7, P9, P11, P12 and
P25).
3. Remove the screws (
×10
) and remove the P-Board.
7.4.
Remove the Tuner unit
1. Unlock the cable clampers to free the cable.
2. Disconnect the connectors (A1, A7, A12, A20, A25, A31,
2. Disconnect the connectors (A1, A7, A12, A20, A25, A31,
A32, A51 and A52).
3. Remove the screws (
×5
) and remove the Tuner unit.
7.5.
Remove the GS-Board
1. Disconnect the connector (GS52).
2. Remove the screw (
2. Remove the screw (
×1
) and remove the rear SD
bracket.
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3. Remove the screw (
×1
) and remove the GS-Board.
7.6.
Remove the A-Board
1. Remove the tuner unit. (See section 7.4.)
2. Remove the tab and remove the CI cover.
2. Remove the tab and remove the CI cover.
3. Remove the screws (
×7
) and remove the A-Board.
7.7.
Remove the SU-Board
1. Remove the flexible cables (SU1, SU2, SU3 and SU4)
connected to the SU-Board.
2. Remove the flexible cable (SU11-SD11) and the bridge
connector (SC41-SU41).
3. Remove the molding prop (
×1 ).
4. Remove the screws (
×2 ,
×2
) and remove the SU-
Board.
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7.8.
Remove the SD-Board
1. Remove the flexible cables (SD1, SD2, SD3 and SD4)
connected to the SD-Board.
2. Remove the flexible cable (SU11-SD11) and the bridge
connectors (SC42-SD42 and SC46-SD46).
3. Remove the molding prop (
×1 ).
4. Remove the screws (
×2 ,
×2
) and remove the SD-
Board.
7.9.
Remove the SC-Board
1. Remove the SU-Board and SD-Board. (See section 7.7.
and 7.8.)
2. Unlock the cable clampers to free the cable.
3. Disconnect the connector (SC2).
4. Disconnect the flexible cable (SC20).
5. Remove the screws (
3. Disconnect the connector (SC2).
4. Disconnect the flexible cable (SC20).
5. Remove the screws (
×6
) and remove the SC-Board.
7.10. Remove the SS2-Board
1. Disconnect the connector (SS02) and disconnect the flex-
ible cable (SS52).
2. Remove the screws (
×2
) and remove the SS2-Board.
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