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3. AM IF, RF and Tuning Voltage Alignment
Preparation :
2. Signal Generator Modulation : 30%
3. Switch : Press to AM.
Receiver
Frequency on
the Display
Signal
Generator
Frequency
1000 kHz
(EUR : 999 kHz)
(400 Hz, Mod.)
600 kHz
(EUR : 603 kHz)
(400 Hz, Mod.)
1400 kHz
(EUR : 1404 kHz)
(400 Hz, Mod.)
1000 kHz
(EUR : 999 kHz)
(400 Hz, Mod.)
520 kHz
520 kHz
(EUR : 522 kHz)
(EUR : 522 kHz)
DC Voltmeter to | L102
DC Voltage
TP3
(AM OSC Coil)
1.0~1.2V
1710 kHz
1710 kHz
DC Voltmeter to
(EUR : 1611 kHz) | (EUR: 1611 kHz) | TP3
.
4. FM IF Alignment
TC102
DC Voltage
(ANT Trimmer)
Preparation
8.5~9V
1. Signal Generator output should be no higher than necessary to obtain an optimum output reading.
2. Switch : Press to FM.
3. Signal generator deviation : 75 kHz.
4. Be sure to disconnect FM line cord antenna during alignment.
Adjustment
point
Equipment
Connection
Maximum
reading
Place at a noninterfer-|
AC voltmeter to
ence spot around 1000} TAPE OUT jack.
kHz({EUR 999 kHz)
EUR (603 kHz)
Same as
L101
Same as
Step 1.
(ANT Coil)
Step 1
Same as
TC101
Same as
Step 1.
(ANT Trimmer)
| Step 1
600 kHz
DC Voltmeter to | VR101
DC Voltage
TP5
(AM ADJ)
200 mV
EUR (1404 kHz)
1400 kHz
EUR (999 kHz)
1000 kHz
Voltage
ADJ
Receiver
Frequency on
the Display
98.1 MHz
(EUR : 98.0 MHz)
Signal
Generator
Frequency
98.1 MHz
(EUR : 98.0 MHz)
(1 kHz, Mod.)
Adjustment
point
Equipment
Connection
Minimum
distortion
L104
(FM DETECT -B
Coil)
Distortion
|
meter to
TAPE OUT jack
Coil)
Voltmeter
29
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