BenQ LCD G2020HDA User Manual

20” LCD Color Monitor BenQ G2020HDA
49
(2) No picture
No
p
icture
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 U201 Pin2=3.3V
OK
NG
Replace U201
Check if the Pin 3, 4 of CN201 is 5V input
Check power board
NG
OK

BenQ LCD G2020HDA Specifications

General

Brand	BenQ
Model	LCD G2020HDA
Category	Monitor
Language	English