Tuner Adjustments - Sanyo MCD-Z150F XE Service Manual

TUNER ADJUSTMENTS

Use a plastic screw driver for adjustments.
l
Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.
l
Supply voltage DC 12.OV
Phones impedance 32 ohms
50mW
Standard output
Function switch RADIO
a. Parts Location
VCT-3
VCT-1
VCT-2
VCT-4
b. AM Adjustment
Adjusting
Step
Circuit
Closed the output
terminal by sweep
IF
1
generator, it place
2
Connect AM SG to Connect VTVM to
Tuning coverage
3
4
Connect AM SG to Connect VTVM to
Tracking
c. FM Adjustment
Adjusting
Step
Circuit
Connect sweep
IF
1
Tuning coverage
Tracking
4
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BAND SELECT SWITCH
Connections
Input output
Connect sweep
generator to
to L2103.
speaker terminals I+
test loop
speaker terminals
test loop
BAND SELECT SWITCH
Connections
Input output
Connect sweep
generator to
generator to
TP202 (E)
Connect VTVM to
TP201 (H) &
speaker terminals
TP202 (E)
AM
Position of
SG Frequency
tuning dial
455 kHz
600 kHz
1400 kHz 1400 kHz
FM Dummy Antenna
FM
Position of
SG Frequency
tuning dial
10.7 MHz
96 MHz
VTVM
Adjustment
Oscilloscope
Max.
Max.
VCT-3
75 ohm unbalance
VTVM
Adjustment
Oscilloscope