Sanyo MCD-ZX530F, Руководство по обслуживанию

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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
SG Position of VTVM
Input Output Frequency Tuning dial Oscilloscope
Closed up the output Connect sweep
termial by sweep generator to
generator,it place C115(-)(G) & (L)
to AM ANT.(I)
2 Connect AM SG to Connect VTVM to 516 KHz Low end T101(A)
3 test loop speaker terminals. 1635 KHz High end C3 ( C )
4 Connect AM SG to Connect VTVM to 600 KHz 600 KHz AM ANT COIL(I)
5 test loop speaker terminals. 1400 KHz 1400 KHz C4 (B)
b.FM Adjustment Band switch:FM FM Dummy antenna: 75 ohms unbalance
SG Position of VTVM
Input Output Frequency Tuning dial Oscilloscope
2 Connect FM SG to Connect VTVM to 87.5 MHz Low end L102 (F)
3 FM.ANT(O) & D101(N) speaker terminals. 108.5 MHz High end C1 (E)
4 Connect FM SG to Connect VTVM to 90 MHz 90 MHz L101 (H)
5 FM.ANT(O) & D101(N) speaker terminals. 106 MHz 106 MHz C2 (D)
Adjustment
IF 465 KHz
Step
Adjusting
Circuit
Connections
1 IF
Connect sweep
generator to
IC101(24pin )
Low
10.7 MHz Low
Circuit
1
Max.
Max.
Step
T103(L)
Adjustment
Tuning
coverage
Tracking
Connect VTVM to
generator to C115(-)
(G)
Adjusting Connection
Max.
Max. Tracking
Tuning
coverage
T102 (K) &
T104 (M)