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TUNER ADJUSTMENT
use a plastic screews driver for adjustments.
Adjust the intermediate frequency of AM and FM to the frequency of cermic filter.
Supply voltage:
Speaker impedance:
Function switch:
a. AM adjustment
ste
Adjusting
Tuning
circuit
Frequency
1
IF
1000 KHz
(450 KHz)
2
Tuning
530 KHz
3
Coverage
1710 KHz
4
Tracking
600 KHz
5
1500 KHz
b. FM Adjustment
ste
Adjusting
Tuning
circuit
Frequency
1
IF
(10.7 MHz)
98.0 MHz
2
Tuning
87.5 MHz
3
Coversage
108 MHz
4
Tracking
90.0 MHz
5
106.0 MHz
DC 12.0V
3 OHMS
RADIO
BAND SELECT SWITCH : AM
Input Connection
Measurement
input
AM Sweep
Loop
Generator
ANT
Am signal
Loop
Generator
ANT
BAND SELECT SWITCH : FM
Input Connection
Measurement
input
FM Sweep
TP4 (H)
Generator
TP8 (E)
--
--
FM Signal
FM ANT
Generator
TP1(E)
Output Connection
Measurement
output
VTVM
TP16 (H)
Oscilloscope
TP 8 (E)
Digital
TP16 (H)
Voltmeter
TP 8 (E)
VTVM
TP12 (L)
Oscilloscope
TP11 (R)
FM Dummy Antenna : 75 ohm unbalance
Output Connection
Measurement
output
VTVM
TP16 (H)
Oscilloscope
TP8(E)
Digital
TP16 (H)
Voltmeter
TP8(E)
VTVM
TP12 (L)
Oscilloscope
TP11 (R)
PC-XC350
Adjustment
VTVM Oscilloscope
parts
T103
T102
1.2+/-0.05V
Confirm 7.0+/-0.5V
MW COIL
CT102
Maximum
Adjustment
VTVM Oscilloscope
parts
T104
Confirm 1.4+/-0.1V
L104
5.6+/-0.5V
L103
Confirm with being
near by effective
sensitvity
1 - 7
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