43
Meridian 1
11.2. Power/Inverter Board
(1) No power
Check ZD902
˙
12V
Check AC line volt is 90V or 264V
Check AC input
Check the voltage of C907 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of IC901
Check R904, R932 and Change IC901
NG
Check the auxiliary voltage is bigger
than 16V and smaller than 32V
1) Check IC901
2) Check R909, D901 circuit
OK
OK
NG
Check Q901, IC902, IC903, D915, D916, ZD921, ZD922
OK
Check IC901 pin5 PWM wave
OK
Check IC901
NG
NG
NG
OK
NG
Содержание 192E1SB/00
Страница 29: ... 29 Meridian 1 ...
Страница 34: ... 34 Meridian 1 9 Scaler Board Overview Scaler Flash ROM DC DC Converter DVI EEPROM D SUB EEPROM EEPROM ...
Страница 37: ...37 Meridian 1 3 Remove the key board from the bezel and remove the bezel ...
Страница 47: ...47 Meridian 1 a Double click Δrunning the program as follows b Click icon and the program runs as follows ...
Страница 50: ... 50 Meridian 1 Take analog DDC write for example as follow a Double click Δappear as follow ...
Страница 60: ... 60 Meridian 1 15 Monitor Exploded View ...