Sharp LB-1085 (serv.man2) Service Manual / Parts Guide ▷ View online
LB-1085
DISASSEMBLY AND ASSEMBLY
4 – 3
2. PWBS DISASSEMBLY AND ASSEMBLY
■
Side PWB, Operation PWB disassembly and assembly
1) Remove the mini-AV terminal cover. (Refer to “
■ Mini-AV terminal cover disassembly and assembly”)
2) Disconnect 3 connectors. Remove 1 screw A (M3 x 8) and 2 screws B (M3 x 6 with washer), and remove the side PWB and the operation PWB.
■
LCD control PWB disassembly and assembly
1) Remove the rear cabinet upper. (Refer to “
■ Rear cabinet upper disassembly and assembly”)
2) Remove the 4 screws A (M3 x 6 with cupling), and remove the LCD control shield case.
3) Disconnect 7 connectors. Remove 1 screw B (M3 x 6 with cupling), and remove the LCD control PWB.
*
When installing, be careful not to pinch the harness and not to bring into contact with the FPC or not to hang on the FPC.
B
A
Pawl
Pawl
Operation PWB
Side PWB
A
B
LCD shield case
LCD control PWB
LB-1085
DISASSEMBLY AND ASSEMBLY
4 – 4
■
LCD sub PWB 1, LCD sub PWB 2, Inverter total control PWB, Inverter/Power PWB disassembly and assembly
1) Remove the rear cabinet upper. (Refer to “
■ Rear cabinet upper disassembly and assembly”)
2) Disconnect 21 connectors. Remove 27 screws A (M3 x 6), and remove the LCD sub PWB 1, the LCD sub PWB 2, the Inverter total control PWB,
and the Inverter/Power PWB.
*
When installing, be careful not to pinch the harness.
■
Main PWB, Terminal PWB disassembly and assembly
1) Remove the rear cabinet lower. (Refer to “
■ Rear cabinet upper disassembly and assembly”)
2) Remove 7 screws A (M3 x 6), and remove the main PWB box and the terminal PWB box.
3) Remove 12 screws A (M4 x 8), and remove the main shield case.
A
A
A
A
A
Inverter total control PWB
LCD sub PWB 1
LCD sub PWB 2
Inverter/Power PWB
Inverter/Power PWB
A
A
Main PWB box
Terminal PWB box
A
A
A
Main shield case
LB-1085
DISASSEMBLY AND ASSEMBLY
4 – 5
4) Disconnect the connectors. Remove 3 screws A (M3 x 6), 4 hex screws B, 2 screws C (M3 x 8), and 11 screws D (M3 x 6 with washer), and
remove the main PWB and the terminal PWB.
*
When installing, be careful not to pinch the harness.
■
Signal power PWB, LCD sub PWB 1, AC inlet PWB, Power relay PWB disassembly and assembly
1) Remove the rear cabinet lower. (Refer to “
■ Rear cabinet lower disassembly and assembly”)
2) Disconnect 26 connectors. Remove 21 screws A (M3 x 6 with washer), and remove the signal power PWB, the LCD sub PWB 1, the AC inlet
PWB, and the power relay PWB.
*
When installing, be careful not to pinch the harness.
A
B
C
B
D
D
Main PWB
Terminal PWB
A
A
A
A
Power relay PWB
LCD sub PWB 1
Signal power PWB
AC inlet PWB
LB-1085
DISASSEMBLY AND ASSEMBLY
4 – 6
■
Speaker terminal connection PWB disassembly and assembly
1) Remove the rear cabinet lower. (Refer to “
■ Rear cabinet lower disassembly and assembly”)
2) Remove 2 screws A (M3 x 8) and 2 screws B (M3 x 6 with washer), and remove speaker angle unit. Disconnect 2 connector. Remove 4 screws
C (M3 x 6 with washer), and remove the speaker terminal connection angle from the speaker angle.
■
Inverter PWB disassembly and assembly
1) Remove the rear cabinet right and the rear cabinet left. (Refer to “
■ Rear cabinet right, Rear cabinet left disassembly and assembly”)
2) Remove 4 screws A (M4 x 10), and remove the side cable angle. Disconnect 78 connectors, and remove 72 screws B (M3 x 6 with washer).
Remove the Inverter PWBs.
C
A
B
JACK terminal section
B
B
Connector positions
Connector positions
Screw positions
Screw positions
A
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