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KV-25DXR
RM-727/APM-XJU
3-7-5. A Board Adjustments
!TUNER AGC ADJUSTMENT
I
!VHF RF AGC Adjustment
I
1. Input a color bar signal. (RF signal)
PICTURE, BRT: normal
2. Adjust
with TU AGC (RV201)
so that there is
no noise, etc. in the picture,
for optimum
state.
{*VHF TUNER AGC pin voltage should be 6Bd8µ/
75n, about 6.5 - 7. 0V when OPEN.)
digital multi-meter
D
+
oscilloscope
MPX ADJUSTMENT
I
1. Input a dot signal.
2. Observe the A-3 connector pin (])
waveform on
the oscilloscope and adjust with MPX (RV202).
-24-
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