H a n n S t a r D i s p l a y C o r p .
Document Title
HW191A _XY _HSM
Page No.
41
41 /
72
Document No.
Revision
07/08/03
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White screen
White screen
Measure R604 base
is low level?
X401 oscillate
waveform is normal
Check Q601, Q602 is
broken or CN601 solder?
Check Correspondent
component.
Replace PANEL
Check U501
Replace U401
OK
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
Replace U501
OK
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