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6. No Video Signal (S-VHS)
Preliminary Checkpoints
A
Check the condition of connectin of the input S-VHS signal. Check the condition of soldering state in S-VHS & input part Check the short poi nt in signal line. Check for short circuits between each power terminal and the ground.
B
No S-VHS signal (SMPTE Color Bars) (1):S-VIDEO01 (2):S-VIDEO01 (3):S-VIDEO01 #10,12(1),17,19(2),24,26(3) at U706 in DTT & Analog B/D
C
NG
Check CVBS input part
Waveform 16,16-1
#121,128 At U711 In DTT&Analog Board
Waveform 17,17-1
NG Check U706 & input part of U711
D
Dose the signal appear at PR22,24 25,26 In DTT&Analog B/D Waveform 11 Dose the signal appear at PR29,31,34,35,38,39 In digital B/D Waveform 12
NG
Check U16 and Y2 and related circuit
NG
Check U20 and X2 and related circuit
E
Check the LVDS Cable and JP500 in Digital B/D
NG
Change the LVDS Cable &LVDS chip
Change Digital B/D
F
T06
72
1 2
T06
PDP-42A3HD
3 4
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