Kortek corporation
60
of
99
PDP R&D Center
9.2 Partly no Screen
9.2.1
9.2.2
Check Output Data of CN60
Check Output Signal of U26 gmVLX1A-X
Pin 27(G7), 41(B7), 56(R7)
Check Input Signal of U36 VPC3230
Pin 74(Yin), 72(Cin)
Check Output Signal of U38 uPD64082
Pin 84(Yout), 83(Cout)
Check Output Signal of U36 VPC3230
Pin 31(Y7), 41(UV7), 47(UV3)
Check Input Signal of U38 uPD64082
Pin 88(CVBS)
Check Video Cable
Check Logic B/D
Check U24
PW364
Check U26
gmVLX1A-X
Check U36
VPC3230
Check Y, C
TR Drive Circuit
Check U38
D64082
OK
NG
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
1 Block no screen
OK
Power On
NG
NG
2-3
Block no screen
Check the COF
Replace Corresponding
Address Buffer.
Check the corresponding
COF and COF CON.
Replace Panel
Check the COF CON
NG
NG
OK