Sharp LC-20S4U-S Service Manual And Parts Listparts List page 12

LC-20S4U-S
»Precautions in servicing the B side (backside) of the main PWB unit
1. Disconnect the FFC from between the main PWB (SC1202) and LCD panel unit (CN1), and then connect the
service-specific extension FFC (flat cable) (QCNW-A553WJZZ).
2. Disconnect the FFC from between the main PWB (SC1201) and LCD panel unit (CN2), and then connect the
service-specific extension cord (QCNW-A556WJZZ).
3. Disconnect the FFC for connection between the main PWB (SC1203) and LCD panel unit (CN3), and then connect
the service-specific extension FFC (flat cable) (QCNW-A555WJZZ).
4. Remove the lock screws from the main PWB, detach the PWB from the chassis frame, and then turn it over to
service.
Step
1
2
3
CN2
CN3
2 3
SC1201
SC1203
1
SC1202
CN1
Main PWB
(Side-B)
Analog PWB
R/C, LED PWB
Part No.
QCNW-A553WJZZ Extension Cable 30-pin Main (SC1202)-LCD Panel
QCNW-A556WJZZ Extension Cable 50-pin Main (SC1201)-LCD Panel
QCNW-A555WJZZ Extension Cable 20-pin Main (SC1203)-LCD Panel
Main PWB
Operation PWB
Inverter PWB
Description
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