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Tuner Adjustment - Sanyo MCD-UB575M Service Manual

Cd portable radio cassette recorder
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TUNER ADJUSTMENTS
Use a plastic screw driver for adjustments.
Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.
Set of unit
:
Supply voltage
DC 12.0V
:
speaker impedance
8 ohms
:
standard output
50 mW
:
Function switch
RADIO
a. Parts Location
a.AM Adjustment
Adjusting
Step
Circuit
Closed the output
termial by sweep
1
IF
generator,it place
2
Tuning
Connect AM SG to
3
coverage
4
Tracking
Connect AM SG to
5
b.FM Adjustment
Adjusting
Step
Circuit
Connect sweep
1
IF
IC101(24)pin (B)
Tuning
2
Connect FM SG to
coverage
3
FM.ANT & D101(-)
Tracking
4
Connect FM SG to
5
FM.ANT & D101(-)
Band switch:MW
Connections
Input
Output
Connect sweep
generator to
IC101(18) PIN(A)
to MW ANT
Connect VTVM to
test loop
speaker terminals.
Connect VTVM to
test loop
speaker terminals.
Band switch:FM
Connection
Input
Output
Connect VTVM to
generator to
generator to IC101
(18) pin (A)
Connect VTVM to
speaker terminals.
Connect VTVM to
speaker terminals.
SG
Position of
Frequency
Tuning dial
465 KHz
Low
520 KHz
Low end
1650 KHz
High end
600 KHz
600 KHz
1400 KHz
1400 KHz
FM Dummy antenna: 75 ohms unbalance
SG
Position of
Frequency
Tuning dial
10.7 MHz
Low
87.5 MHz
Low end
108.3 MHz
High end
90.0 MHz
90.0 MHz
106.0 MHz
106.0 MHz
- 2 -
VTVM
Adjustment
Oscilloscope
T103
T101
Max.
C3
MW ANT COIL
Max.
C4
VTVM
Adjustment
Oscilloscope
T102 T104
L102
Max.
C1
L101
Max.
C2

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