Sharp LC-19SK25U Service Manual page 17

ﾈ Precautions in servicing the side-B (backside) of the main PWB unit
1. Remove the lock screws (2 pcs.) from the main PWB, detach the PWB from the set, and then turn it over.
2. Connect the service-specific extension cable (QCNW-E542WJZZ) between the main PWB (SC1201) and the
sub PWB (P501).
3. Connect the service-specific extension cable (QCNW-E542WJZZ) between the main PWB (SC1202) and the
sub PWB (P502).
4. Connect the service-specific extension cable (QCNW-D431WJZZ) between the main PWB (SC1204) and the
power PWB (SC7501).
5. Connect the service-specific extension cable (QCNW-C458WJQZ) between the main PWB (SC9201) and the
panel PWB (CN1).
ﾈ Precautions in servicing the side-B (backside) of the power PWB unit
1. Remove the lock screws (4 pcs.) from the power PWB unit, detach the PWB from the set, and then turn it over.
2. Connect the service-specific extension cable (QCNW-D431WJZZ) between the power PWB (SC7501) and the
main PWB (SC1204).
ﾈ Precautions in servicing the side-B (backside) of the sub PWB unit
1. Remove the lock screws (2 pcs.) from the sub PWB unit, detach the PWB from the set, and then turn it over.
2. Connect the service-specific extension cable (QCNW-E542WJZZ) between the sub PWB (P501) and the main
PWB (SC1201).
3. Connect the service-specific extension cable (QCNW-E542WJZZ) between the sub PWB (P502) and the main
PWB (SC1202).
BTN PWB
LED PWB
Step Part No.
2 QCNW-E542WJZZ
3 QCNW-E542WJZZ
4 QCNW-D431WJZZ
5 QCNW-C458WJQZ
Inverter PWB
5
5
Extension Cable 23-pin Main (SC1201)-Sub (P501)
Extension Cable 23-pin Main (SC1202)-Sub (P502)
Extension Cable 15-pin Main (SC1204)-Power (SC7501)
Extension Cable 80-pin Main(SC9201)-Panel(CN1)
1
Main PWB
Sub PWB
Description
LC-19SK25U/U-W
LC-19SB25U/U-W
LC-19SB15U
LC-19D45U