23” LCD Color Monitor BenQ G2320HD
62
Main Board
(1) No Power
No power
Press power key and look if the
picture is normal
Please reinsert and make sure the
AC of 100-240 is normal
Reinsert or check the
power section
Check if X401 oscillate waveforms are normal
Measure U702 Pin2=3.3 and U704 Pin2=1.2V
OK
OK
NG
NG
NG
Replace U702 and U703
Check U401
Replace X401
OK
NG
Check if the Pin 4, 7, 8 of CN701 is 5V input
Check power board
NG
OK
Содержание G2320HD
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Страница 43: ...23 LCD Color Monitor BenQ G2320HD 43 C Put the disassembly tool into the nick...
Страница 44: ...23 LCD Color Monitor BenQ G2320HD 44 D Gash slightly the latch with the disassembly tool...
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Страница 70: ...23 LCD Color Monitor BenQ G2320HD 70 Power Board...
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