Vizio VM60P HDTV10A Service Manual page 94

PDP display nothing (AV2<S-Video2> without screen)
Block1
Is composite
signal on?
Check U18 pin 13 (CHROMA2)
YES
is there signal?
ONFIDENTIAL – DO NOT COPY
Check internal cable?
N0
Connect (CN9) cable
Check Connect Board
No
Check Q5 base is there signal?
Check collector voltage +5V
YES
Check U18 pin 3 (LUMA2)
YES
is there signal?
Check Connect Board
No
Check Q6 base is there signal?
Check collector voltage +5V
Check:
1.C24 (signal AC coupled)
YES
2.R25
3.R28 (75ohm impedance)
Is there signal?
No
Q5 fail
Check:
1.C20 (signal AC coupled)
2.R24
3.R27 (75ohm impedance)
Is there signal?
No
No
Check input source
No
Check input source
File No. SG-0214
Q6 fail
Page 10-5