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12
LC-15B5E
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Precautions in servicing Side B (back side) of the main PWB unit
1. Disconnect the FFC (flat cable) from between the main PWB (SC1204) and LCD panel. Connect the service-
specific extension FFC (flat cable) (QCNW-A556WJZZ) instead.
2. Disconnect the FFC (flat cable) from between the main PWB (SC1201) and LCD panel. Connect the service-
specific extension FFC (flat cable) (QCNW-A555WJZZ) instead.
3. Disconnect the FFC (flat cable) from between the main PWB (SC1202) and LCD panel. Connect the service-
specific extension FFC (flat cable) (QCNW-B784WJZZ) instead.
4. Disconnect the lead (between main PWB (P2003) and operation PWB) from the P2003 connector. Connect the
service-specific extension cable (QCNW-B748WJZZ) instead.
5. Disconnect the P701 side of the lead from between the main PWB (P701) and the analog PWB, and then
connect the service-specific extension cord (QCNW-C086WJQZ).
6. Disconnect the FFC from between the main PWB (SC2001) and the analog PWB (SC3403), and then connect
the service-specific extension FFC (flat cable) (QCNW-A556WJZZ).
7. Disconnect the lead from between the main PWB (P2006) and the analog PWB (P1601), and then connect the
service-specific extension cord (QCNW-C498WJQZ).
8. Disconnect the lead (between card LED PWB (P9201) and main PWB (P2005)) from the P2005 connector.
9. Remove the four lock screws from the main PWB. Detach this PWB from the chassis frame and turn it over.
9. Remove the four lock screws from the main PWB. Detach this PWB from the chassis frame and turn it over.
10. Remove the lock screw from the card LED PWB and detach the card LED PWB from the cabinet A. Reconnect
the lead (disconnected in Step 5 above) to the main PWB (P2005).
Step
Part No.
Description
1
QCNW-A556WJZZ
Extension Cable 50-pin Main (SC1204)-LCD panel
2
QCNW-A555WJZZ
Extension Cable 20-pin Main (SC1201)-LCD panel
3
QCNW-B784WJZZ
Extension Cable 30-pin Main (SC1202)-LCD panel
4
QCNW-B748WJZZ
Extension Cable 5-pin Main (P2003)-Operation (P4050)
5
QCNW-C086WJQZ
Extension Cable 10-pin Main (P701)-Analog (P3704)
6
QCNW-A556WJZZ
Extension Cable 50-pin Main (SC2001)-Analog (SC3403)
7
QCNW-C498WJQZ
Extension Cable 15-pin Main (P2006)-Analog (P1601)
P2003
P4050
SC1202
SC1201
P2006
SC2001
P701
SC3403
P1601
P3704
P9201
P2005
SC1204
Main PWB
Card LED PWB
Inverter PWB
3
4
5
2
1
8
7
6
Analog PWB
Main PWB
(Side-B)
10
9
