Sony CFS-B31

AM IF ADJUSTMENT
Adjust for a maximum reading on VT VM.
Adjust for a maximum reading on VTVM.
u
( ) : CFS-31L LW
Adjustment Location :
[TUNER BOARD] ( Component Side)
AM (LW) FREQUENCY
COVERAGE ADJUSTMENT
71
FM IF ADJUSTMENT
T3
POG
ee
ad
VCO Adjustment
Procedure :
FM
RF
signal
telescopic
generator
antenna
terminal
Carrier frequency : 98 MHz
Modulation : no modulation
Output level : 0.1V (100 dB)
1. Connect the frequency counter to @ and @ pins of IC1 as
shown the figure below.
2. Turn the set to 98 MHz.
3. Adjust RV1 for 76 kHz + 500 Hz reading on frequency
counter.
[TUNER BOARD] ( Component Side)
frequency
counter
25
FM FREQUENCY COVERAGE
ADJUSTMENT
ANT2
cTt }
FM FREQUENCY COVERAGE
ADJUSTMENT
L2
FM TRACKING ADJUSTMENT
L1
cre J
AM IF ADJUSTMENT
T2