LC-20SH4U
12
» Precautions at the time of the side B(back) service of main, sub and Inverter unit.
1. Remove the FFC for connection between Main unit (SC1001) and LCD panel (CN1), and connect the extended
cable (QCNW-B784WJZZ) for service.
2. Remove the FFC for connection between Main unit (SC1000) and LCD panel (CN2), and connect the extended
cable (QCNW-A556WJZZ) for service.
3. Remove the FFC for connection between Main unit (SC1002) and LCD panel (CN3), and connect the extended
cable (QCNW-A555WJZZ) for service.
4. Remove only SC1201 side of the lead from between Main unit (SC1201) and Sub unit (P7301), and connect the
extended cable (QCNW-C461WJQZ) for service.
5. Remove only SC2001 side of the lead from between Main unit (SC2001) and Sub unit (P3901), and connect the
extended cable (QCNW-C461WJQZ) for service.
6. Remove only SC2002 side of the lead from between Main unit (SC2002) and Sub unit (P3902), and connect the
extended cable (QCNW-D402WJQZ) for service.
7. Remove the FFC for connection between Main unit (SC2003) and Operation unit (SC4201), and connect the
extended cable (QCNW-D444WJQZ) for service.
8. Remove the FFC for connection between Sub unit (SC3601) and R/C, LED unit (SC4001), and connect the
extended cable (QCNW-D445WJQZ) for service.
9. Remove only P6701 side of the lead from between Sub unit (P3601) and Inverter unit (SC6701), and connect the
extended cable (QCNW-D449WJQZ) for service.
10. Remove the PWB unit fixing screws (main unit : 2pcs, sub unit : 2pcs., inverter unit : 3pcs.)
Step Part No. Description
1 QCNW-B784WJZZ Extension Cable 30-pin Main (SC1001)-LCD panel (CN1)
2 QCNW-A556WJZZ Extension Cable 50-pin Main (SC1000)-LCD panel (CN2)
3 QCNW-A555WJZZ Extension Cable 20-pin Main (SC1002)-LCD panel (CN3)
4 QCNW-C461WJQZ Extension Cable 15-pin Main (SC1201)-Sub (P7301)
5 QCNW-C461WJQZ Extension Cable 15-pin Main (SC2001)-Sub (P3901)
6 QCNW-D402WJQZ Extension Cable 23-pin Main (SC2002)-Sub (P3902)
7 QCNW-D444WJQZ Extension Cable 5-pin Operation (SC4201)-Main (SC2003)
8 QCNW-D445WJQZ Extension Cable 8-pin R/C, LED (SC4001)-Sub (SC3601)
9 QCNW-D449WJQZ Extension Cable 13-pin Inverter (SC6701)-Sub (P3601)
SC1001
SC2001
P3901
SC2002
SC1002
SC1201
SC1000
SC2003
SC6701
P3601
P7301
P3902
SC3601
CN1
CN2
CN3
SC4201
SC4001
2
4
3
1
7
9
8
6
5
10
Main PWB
Operation PWB
Inverter PWB
Inverter
PWB
(Side B)
Main PWB
(Side B)
Sub PWB
(Side B)
Sub PWB
R/C, LED PWB
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