Service manual

LC-15B4U-S

LC-15B4U-B

Step Part No. Description

1 QCNW-A556WJZZ Extension Cable 50-pin Main (SC2002)-Tuner (SC3403)

2 QCNW-A553WJZZ Extension Cable 30-pin Main (SC1204)-LCD Panel

3 QCNW-A556WJZZ Extension Cable 50-pin Main (SC1203)-LCD Panel

4 QCNW-A555WJZZ Extension Cable 20-pin Main (SC1202)-LCD Panel

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

connect 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.

P4001

INVERTER PWB

MAIN PWB

TUNER PWB

SC3403

P3701

P8401

SC2002

P1201

P701

SC1204

SC1202

SC2001

SC1203