10. Trouble Shooting——
No Picture
No Picture
Check input picture
signal and source
Check Panal_vcc
Check 0V9 & 1V5 & 3V3
Check reset and crystal
oscillator circuit
Check software and ID
number
Replace
main board
Check CS01
and X12M
Upgrade
soft and
select
right ID
Check Q601/Q600
working condiction
Check UDF1,UDJ1,UDC1
output
Check keypoints 5V
Check UD1
output
Check voltage of
keypoints 3V3STB 12V
Check PSU output
Check
P602/227/28/29/30
P601_1/2/3/4
=12V?
Check panel to confirm
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
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