23” LCD Color Monitor BenQ G2320HD
63
(2) No picture
No picture
OK
NG
X401 oscillate waveforms are normal
Replace X401
Check if the sync signal from
computer is output and video cable is
connected normally
Input the sync signal of computer, or
change the cable
NG
OK
NG
Check U401
Replace U401
Measure U702 Pin2=3.3 and U704 Pin2=1.2V
OK
NG
Replace U702 and U703
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...
Страница 48: ...23 LCD Color Monitor BenQ G2320HD 48 MAIN BOARD POWER BOARD...
Страница 68: ...23 LCD Color Monitor BenQ G2320HD 68 PCB LAYOUT Main Board...
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Страница 70: ...23 LCD Color Monitor BenQ G2320HD 70 Power Board...
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