Sharp LC-20B4U-S Service Manual page 12

LC-20B4U-S
LC-20B4U-B
Precautions at the time of the side B(back) service of digital unit.
1. Remove only SC2002 of the FFC for connection between Main unit (SC2002) and Tuner unit(SC3403), and con-
nect the extended cable (QCNW-A556WJZZ) for service.
2. Remove the FFC for connection between Main unit (SC1204) and LCD panel unit, and connect the extended
cable (QCNW-A553WJZZ) for service.
3. Remove the FFC for connection between Main unit (SC1203) and LCD panel unit, and connect the extended
cable (QCNW-A556WJZZ) for service.
4. Remove the FFC for connection between Main unit (SC1202) and LCD panel unit, and connect the extended
cable (QCNW-A555WJZZ) for service.
5. Remove the main unit fixing screws (3 pcs.), a substrate is reversed.
Step
1 QCNW-A556WJZZ
2 QCNW-A553WJZZ
3 QCNW-A556WJZZ
4 QCNW-A555WJZZ
5
3
SC1203 SC1202
P2001
4
2
1
Main PWB
SC1204 SC2002
P1201 P1201 P1201 P701
Tuner PWB
P8401
Part No.
Extension Cable 50-pin Main (SC2002)-Tuner (SC3403)
Extension Cable 30-pin Main (SC1204)-LCD Panel
Extension Cable 50-pin Main (SC1203)-LCD Panel
Extension Cable 20-pin Main (SC1202)-LCD Panel
SC3403
P3701
Description
12