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Exchange of each board
1. Disengage the cable (between H5 and L1) from the lead
clamp on the print holder.
2. Remove the print holder set screw, disengage the tab,
and remove the print holder.
3. Pull out the board to be exchanged to the top and replace
it.
4. For the VIF audio multiplex demodulation board [N],
remove the solder on the side of the board [A] and then
exchange.
When the DAF board [DF] has been exchanged, per-
form "DAF Phase Adjustment" (refer to page 26).
When the video signal processing board [AG] has
been exchanged, confirm the TV signal, the color bar
signal, etc. On the screen and perform "Contrast
Adjustment, Color Output/Color Hue Adjustment"
(refer to page 36 and 27) asa required.
(For easier understanding of the explanations, the
condition with removed print holder is shown. The rear
terminal switching board [H] also has been removed
for the explanations.)
VIF audio multiplex
demodulation board [N]
Tab part
U/V tuner
Print holder
DAF board [DF]
Rear terminal switching board [H]
Digital core board [DG]
Video signal processing board [AG]
- 11 -
Set screw (1 screw)
Lead clamp
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