15” LCD Color Monitor Sharp LL-153A
33
2.) W / LED , No Backlight
Check C811(+) =12V
NG
OK
Change
L921
circuit
Check ON/OFF signal
Check Main board
NG
OK
Check IC801 pin2=5V
NG
OK
Change Q801,Q802,Q803 circuit
Check the pin1,15 of IC801 have saw tooth
wave
Check IC801 pin6,7,10
Check the pin5 of IC801
NG
OK
Check D802,D804,Q806 circuit
Check the resonant wave for PT801
NG
OK
Check the output of PT801
Check Q805 circuit
Check connecter & lamp
OK
NG
Change PT801
OK
NG
Содержание LL-153A
Страница 10: ...15 LCD Color Monitor Sharp LL 153A 10 4 4 Panel Specification 4 4 1 Display Characteristics ...
Страница 12: ...15 LCD Color Monitor Sharp LL 153A 12 Back Light Unit ...
Страница 24: ...15 LCD Color Monitor Sharp LL 153A 24 6 4 Audio Board ...
Страница 25: ...15 LCD Color Monitor Sharp LL 153A 25 7 PCB Layout 7 1 Main Board ...
Страница 26: ...15 LCD Color Monitor Sharp LL 153A 26 7 2 PWPC Board ...
Страница 27: ...15 LCD Color Monitor Sharp LL 153A 27 7 3 Audio Board 715G1144 3 SH ...
Страница 36: ...15 LCD Color Monitor Sharp LL 153A 36 10 Monitor Exploded View ...