Tuner Adjustments; Parts Location - Sanyo MCD-Z5F Service Manual

TUNER ADJUSTMENTS
.
Use a plastic screw driver for adjustments.
Adjust the
intermediate frequency of AM and FM to the frequency of ceramic filter.
Supply voltage
:DC12.OV
Phones impedance :32
ohm
Standard output :50 mW (450 mV)
Function switch
: RADIO
PARTS LOCATION
J
J2023.—
_ J2015
TP-1
TP-2
1
VCT-3 VCT-I
L2103
z U IF OUT GND
J2101
IF OUT 'GND
a. AM ADJUSTMENT
BAND SELECT SWITCIH :
AM
termmal by sweep
1
IF
generator, It place to
L2103.
2
Tuning Connect AM SG to
3
coverage
Test Loop
H
4
Connect AM SG to
Tracking
5
Test Loop
I 6 I
Repeat adjustments
:tions
SG Frequency
Position of tuning dial
output
Connect sweep
generator to C2106
(H) &
455
kHz
Low
J2101 (G)
Connect VTVM to
517 kHz Low end
speaker termmals
1750 kHz High end
Connect VTVM to
600 kHz 600 kHz
speaker termmals
1400 kHz 1400
kHz
I
VTVM
Adjustment
Oscilloscope
XF213
4
==I--=
%%
'"
b. FF
Step
1
2
3
4
5
ADJUSTMENT BAND SELECT SWITCH : FM
FM Dummy antenna :75 ohm unbalz
I
I
Adjusting
Connections
SG Frequency
Position of tuning dial
output
Adjustment
Connect sweep
& TP202 (G)
Connect FM SG
=
Tuning
to TP1 (H)
coverage
& TP2 (G)
Connect FM SG
Tracking
to TPI (H)
& TP2 (G)
~e~eat adwstments
generator to
C2106 (H)
& J2101 (G)
Connect VTVM to
speaker terminals
Connect VTVM to
speaker termmals
10.7 MHz Low
98.0 MHz
98.0 MHz
...
L2102
VCT-2
VCT-1
e
VTVM
Oscilloscope
n
Max
Max
-3-