Sanyo MCD-ZX200F - Tuner Adjustments

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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 Band switch : AM
Adjusting Connections
SG
Position of VTVM
Circuit lnput Output
Frequency
Tuning dial Oscilloscope
Connect sweep
1
IF generator to(19)IC101 465KHz Low T103
(H) 0and C112(E)
2
Tuning Connect AM SG to Connect VTVM to 515 KHz Low end T101
3
coverage test loop speaker terminals. 1640 KHz High end C3
4
Connect AM SG to Connect VTVM to 600 KHz 600 KHz MW ANT
5
test loop speaker terminals 1400 KHz 1400 KHz C4
b. FM Adjustment Band switch : FM FM Dummy antenna : 75 ohms unbalance
Adjusting Connection position of VTVM
Circuit Input Output tuning dial Oscilloscope
Connect sweep Connect VTVM to
1
IF generator to IC101 generator to (19)PIN 10.7MHz Low T104 andT102
IC101(22)pin (E)
IC101(H) and C112(E)
2
Tuning Connect FM SG to Connect VTVM to 87.0 MHz Low end L102
3
coverage FM ANT(A) & D102(B) speaker terminals. 109.0 MHz High end C1
4
Connect FM SG to Connect VTVM to 90.0 MHz 90.0 MHz L101
5
FM ANT(A) &D102(B) speaker terminals. 106.0 MHz 106.0 MHz C2
Step Adjustment
Closed the output
terminal by sweep
generator,it place
to MW ANT
Max.
Max.
Tracking
Step SG Frequency
Tracking
Max.
Max.
Adjustment