- 2 -
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 : MW
Adjusting Connections
SG
Position of
VTVM
Circuit
lnput
Output
Frequency
Tuning dial
Oscilloscope
Connect sweep
1
IF
generator to IC101(19)
455KHz
Low
T103
(H) and C107(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 C115(E)
2
Tuning
Connect FM SG to
Connect VTVM to
87MHz
Low end
L102
3
coverage
FM ANT(A) & D102(B)
speaker terminals.
109MHz
High end
C1
4
Connect FM SG to
Connect VTVM to
90 MHz
90 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
Max.
C107(E)
IC101(19P)(H)
C1
C2
C4
C3
T103
T102
T101
A
B
Содержание MCD-ZX500F
Страница 2: ......
Страница 12: ... 11 10 SCHEMATIC DIAGRAM MAIN This is a basic schematic diagram ...
Страница 13: ... 13 12 SCHEMATIC DIAGRAM TUNER This is a basic schematic diagram ...
Страница 14: ... 14 WIRING DIAGRAM CD MAIN CD MAIN ...
Страница 15: ... 15 WIRING DIAGRAM DISPLAY RECTIFIER and TUNER DISPLAY RECTIFIER TUNER ...
Страница 17: ...SANYO Electric Co Ltd Osaka Japan Apr 03 BB Printed in Japan ...