15. Video Pre -Amp Circuit.
This circuit amplifies the analog video signal from
0~0.7 V to 0~4 V. It is operated by taking the clamp,
R,G,B drive and contrast signal from the MICOM
(IC401)
16. Video Output Amp Circuit.
This circuit amplifies the video signal which comes
from the video pre-amp circuit and amplified it to
applied the CDT cathode
14. Video Processor Circuit.
Video processor circuit consists of the video drive
output block. The video drive IC(IC302) receives the
video signal from PC. The gain of each channel is
controlled by MICOM through IIC.
The cut-off circuit compensate different voltage of
each channel between the cathode and the G1 of the
CDT
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