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19" LCD Color Monitor
I-INC AG191D
37
8.2.2 Power Board
1) No power
Check CN902 pin 3/4=12V pin 7/8=5V
Check AC line volt 100-240V
Check AC input
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin 8 of IC901
Check the voltage of pin6 is bigger than
Check D920, D922, IC902, IC921, ZD921.ZD922
NG
NG
OK
Check Main board
OK
Содержание AG191D
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Страница 31: ...19 LCD Color Monitor I INC AG191D 31 7 2 Power Board h t t p w w w w j e l n e t ...
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