LC-20B6E (serv.man7). Removing of major parts - Sharp TV Service Manual (repair manual). Page 5

Precautions in servicing the B side (backside) of the main PWB unit
1. Disconnect the FFC between the main PWB (SC2001) and the analog PWB (SC3401), and then connect the
service-specific extension FFC (flat cable) (QCNW-C459WJQZ).
2. Disconnect the SC701 side of the lead from between the main PWB (SC701) and the analog PWB (P3704), and
then connect the service-specific extension cord (QCNW-B461WJQZ).
3. Disconnect the FFC for connection between the main PWB (SC1201) and LCD panel unit, and then connect the
service-specific extension FFC (flat cable) (QCNW-C458WJQZ).
4. Remove the lock screws from the main PWB, detach the PWB from the chassis frame, and then turn it over to
service.

Step

Part No.

Description

1 

QCNW-C459WJQZ 

Extension Cable 60-pin Main  (SC2001)-Analog (SC340

1)

2

QCNW-C461WJQZ

Extension Cable 15-pin Main (SC701)-Analog (P3704)

3

QCNW-C458WJQZ

Extension Cable 80-pin Main (SC1201)-LCD Panel

CN1

SC1201

SC701 

SC3401  

SC2001

P3704

Main PWB

Main PWB
(Side-B)

Inverter PWB

3

1

2

4

Analog PWB