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Tuner Adjustments - Sanyo MCD-ZX200F 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
terminal by sweep
1
IF
generator,it place
to MW ANT
Tuning
Connect AM SG to
2
coverage
test loop
3
Connect AM SG to
4
Tracking
test loop
5
b. FM Adjustment
Adjusting
Step
Circuit
Connect sweep
IF
generator to IC101
1
IC101(22)pin (E)
2
Tuning
Connect FM SG to
3
coverage
FM ANT(A) & D102(B)
4
Connect FM SG to
Tracking
5
FM ANT(A) &D102(B)
Band switch : AM
Connections
lnput
Output
Connect sweep
generator to(19)IC101
(H) 0and C112(E)
Connect VTVM to
speaker terminals.
Connect VTVM to
speaker terminals
Band switch : FM
Connection
Input
Output
Connect VTVM to
generator to (19)PIN
IC101(H) and C112(E)
Connect VTVM to
speaker terminals.
Connect VTVM to
speaker terminals.
Position of
SG
Tuning dial
Frequency
465KHz
Low
515 KHz
Low end
1640 KHz
High end
600 KHz
600 KHz
1400 KHz
1400 KHz
FM Dummy antenna : 75 ohms unbalance
position of
SG Frequency
tuning dial
10.7MHz
Low
87.0 MHz
Low end
109.0 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
Max.
C4
VTVM
Adjustment
Oscilloscope
T104 andT102
L102
Max.
C1
L101
Max.
C2

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