Tuner Adjustments - Sanyo MCD-Z250F 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 DC 12.OV
Phones impedance 32 ohms
Function switch RADIO
a. Parts Location
CT201
XF213
b AM Adjustment
Adjusting Tuning
Step
Circuit
Frequency Measurement
1 999 kHz
T r a c k i n g 1~1 ::zzrf
c. FM Adjustment
Adjusting Tuning
Step
Circuit
Frequency Measurement
1 98.1 MHz
2 87.5 MHz
Tuning
Coverage
108.0 MHz
3
4 90.0 MHz
T r a c k i n g
106.0 MHz
5
All manuals and user guides at all-guides.com
BAND SELECT SWITCH AM
Input Connection
input
AM Sweep
Loop ANT
Generator
BAND SELECT SWITCH FM
Input Connection
Input
FM Sweep TP2 (H)
Generator TP3 (E) Oscilloscope TP7 (E)
FM Signal
Generator TP3 (E) Oscilloscope TPg (E)
Output Connection
Adjustment
Measurement Output
VTVM TP8 (H)
Oscilloscope TP7 (E)
FM Dummy Antenna
Output Connection
Adjustment
Measurement Output
VTVM
TP8 (H)
Digital TP6 (H)
Voltmeter TP12 (E)
VTVM
VTVM Oscilloscope
Parts
XF213
(Non-adjustment)
75 ohm unbalance
VTVM Oscilloscope
Parts
_
(Non-adjustment)
Confirm 2.0 + 0.5 V
5.5 -+O.l v
Confirm with being near
by effective sensitivity.