Read Sharp LC-20SH1E (serv.man6) Service Manual online
8
LC-20SH1E
REMOVING OF MAJOR PARTS
1. Remove the stand fixing screws (4 pcs.).
2. Remove the cabinet B fixing screws (7 pcs.).
3. Remove the cabinet B after opening from the direction of an arrow.
4. Detach the connector from each PWB.
Cabinet A
Cabinet B
Stand
3
2
2
1
P6704
P6703
P6702
P6701
P6700
SC1203
SC1201 SC1202
SC105
SC102
P7701
P3902
SC106
SC104
P3901
P3301
SC3601
CN1
CN2
CN3
SC4201
P3601
SC6701
SC4001
4
4
4
4
4
4
4
4
Main PWB
Sub PWB
R/C,LED PWB
Inverter PWB
Operation PWB
9
LC-20SH1E
5. Remove the 2 lock screws from the main PWB and undo the hooks a. Detach the chassis frame, together with its
terminals, from the main PWB.
6. Remove the 2 lock screws from the sub PWB and undo the hooks b, c and d. Detach the chassis frame together
with its terminals, from the sub PWB.
7. Remove the 3 lock screws from the inverter PWB and take out the inverter PWB.
8. Remove the 2 lock screws from the R/C, LED PWB and take out the R/C, LED PWB.
9. Remove the 2 lock screws from the operation panel (top cover), and detach the operation panel (top cover).
10. Remove the 3 lock screws from the operation PWB, and detach the operation PWB.
11. Remove the 4 lock screws each from the right and left speakers and take out both the speakers.
5
10
9
7
11
11
8
Speaker (L)
Speaker (R)
R/C,LED PWB
Main PWB
Sub PWB
Operation panel
(Top Cover)
Operation
PWB
c
d
a
Inverter PWB
Chassis Frame
b
6
10
LC-20SH1E
» Precautions in handling the LCD panels
1. Work in a clean room (with humidities below 50%).
2. Be sure to wear an anti-static armband.
3. Handle the panels on an electro-conductive mat.
4. Be careful not to fall, shake and shock the panels.
2. Be sure to wear an anti-static armband.
3. Handle the panels on an electro-conductive mat.
4. Be careful not to fall, shake and shock the panels.
12. Remove the 3 lock screws from the LCD panel and detach the LCD panel.
13. Remove the reflection/deflection sheet, diffusion sheet and diffusion plate.
14. Detach the lamp holders -R (top), -L (top) and -R (bottom), -L (bottom) from the lamp unit.
15. Detach the reflection sheet from the back shield.
13. Remove the reflection/deflection sheet, diffusion sheet and diffusion plate.
14. Detach the lamp holders -R (top), -L (top) and -R (bottom), -L (bottom) from the lamp unit.
15. Detach the reflection sheet from the back shield.
12
13
Reflection/deflection Sheet
(PSHEPA231WJZZ)
Diffusion Plate
(PCOVUA048WJZZ)
Diffusion Sheet
(PSHEPA233WJZZ)
Lamp Holder -R (Top)
(LHLDZA415WJKZ)
Lamp Unit, x5
(KLMP-A046WJZZ)
Reflection Sheet
(PSHEPA226WJZZ)
Lamp Holder -L (Bottom)
(LHLDZA412WJKZ)
Lamp Holder -R (Bottom)
(LHLDZA413WJKZ)
Lamp Holder -L (Top)
(LHLDZA414WJKZ)
Back shield Ass'y
(CSLDMA495WJ01)
20" LCD Panel Unit
14
15
11
LC-20SH1E
» Precautions at the time of the side B(back) service of main, sub and Inverter unit.
1. Remove only SC1203 of the FFC for connection between Main unit (SC1203) and LCD panel, and connect the
extended cable (QCNW-A553WJZZ) for service.
2. Remove only SC1202 of the FFC for connection between Main unit (SC1202) and LCD panel, and connect the
extended cable (QCNW-B556WJZZ) for service.
3. Remove only SC1201 of the FFC for connection between Main unit (SC1201) and LCD panel, and connect the
extended cable (QCNW-A555WJZZ) for service.
4. Remove only SC105 of the FFC for connection between Main unit (SC105) and Operation unit (SC4201), and
connect the extended cable (QCNW-D444WJQZ) for service.
5. Remove only SC3601 of the FFC for connection between Sub unit (SC3601) and R/C, LED unit (SC4001), and
connect the extended cable (QCNW-D445WJQZ) for service.
6. Remove the PWB unit fixing screws (main unit : 2pcs, sub unit : 2pcs., inverter unit : 3pcs.)
Step
Part No.
Description
1
QCNW-A553WJZZ
Extension Cable 30-pin Main (SC1203)-LCD Panel
2
QCNW-A556WJZZ
Extension Cable 50-pin Main (SC1202)-LCD panel
3
QCNW-A555WJZZ
Extension Cable 20-pin Main (SC1201)-LCD panel
4
QCNW-D444WJQZ
Extension Cable 5-pin Operation (SC4201)-Main (SC105)
5
QCNW-D445WJQZ
Extension Cable 8-pin R/C, LED (SC4001)-Sub (SC3601)
SC1201
SC1203
SC3601
SC1202
SC105
CN1
CN2
CN3
SC4201
SC4001
2
3
1
4
5
6
Main PWB
Operation PWB Inverter PWB
Inverter
PWB
(Side B)
Main PWB
(Side B)
Sub PWB
(Side B)
Sub PWB
R/C, LED PWB
