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Vertical
Deflection
Horizontal
Deflection
Check H Drive signal to emitter of Q411.
31.5KHz (NTSC/DVD)
33.75KHz (DTV)
H Drive signal is output to pin 3 of I407.
33.75KHz
NO
H/D1
I701 communicates with I402 on the IIC bus.
Check the #3 (SDA) and #4 (SCL) of I402.
Check #17 (H-Drive output) of I402.
31.5KHz (NTSC/DVD)
33.75KHz (DTV)
12Vp-p
12Vp-p
No Raster
5Vp-p
0.7Vp-p
Trigger pulse is input to #2 of I407.
31.5KHz (NTSC/DVD)
33.75KHz (DTV)
The control voltage of H Drive is
input to #5 of I407.
60Hz
- 18 -
Troubleshooting charts
Check I701
NO
and I402.
High Voltage
Drive
2Vp-p
6Vp-p
NO
Check
Q416, Q417
NO
Check # 9
0.5Vp-p
(E/W ) of
IC402.
7Vp-p
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