Tuner Lfcircuit Adjustment - Sanyo VHR-290 Series Service Manual

3513U11(N)
2-8.
TUNER IF CIRCUIT ADJUSTMENT
:
N10. Item
Input
Mode
Point
Location Remark
1.
Receive the middle electrical field (60 dB -
80 dB) of the TV channel, and slowly turn
VR61 1 from the point where snow-noise is
1 RF AGC
-IV
E-E TV screen
VR611 present to the point where it just disappears
broadcast
(VIF unit)
from the monitor TV.
2. Confirm by monitor w that there is no beat
and saturation (S/N is best point) when re-
ceiving any TV channel.
VR611
r
7
RFAGC~
u
Ic
611
~-''ard
Po3uw
Fig. 2-8-1 VIF unit (Parts side view)
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