LT1201 User Manual (020-1080-00 Rev. A) 15
Debug Procedure
JP1 , +12V
INPUT
Does the
screen
l
Solution with
No display
NO
Display
ok ?
YES
Lost some
bits
of RGB??
CHK OSD
U4 pin119~124
(PUSH KEY SWITCH)
YES
NO
CHK U4
pin 79~86
CHK R1(R ),
R2 (G),R3(B)
C1
,
C2
,
C3
NO
YES
RETURN