6
6
D-AJ03
6
ADJUSTMENT
TUNER SECTION
Connections and adjustment point
AM
FM
G
AM SG
FM stereo modulator
FM SG
Modulation frequency: 400Hz
Modulation factor: 30%
Test loop antenna
Loop antenna
To TP
To Output Terminal
Digital Voltmeter
Distortion Meter
Separation Meter or
Electronic Voltmeter
To Output Terminal
Antenna Terminal
Rear Panel Side
75 ohms
Coaxial Cable
Modulation frequency: 1kHz
L+R: 90% (67.5kHz Dev.)
Pilot: 10% (7.5kHz Dev.)
75kHz Dev.: 100%
60cm
T401
T404
TUNER PWB
T403
T402
R419
R425
TC401
FM ALIGNMENT (BAND BUTTON: FM, AUTO)
Input
Output
Frequency
Level
Modulation
Connect to
Measuring
Equipment
Connect to
Align Part
Set Value
Remarks
98 MHz
60 dB
1 kHz
75 kHz dev
FM Ant
Terminal
Digital
Voltmeter
Both Leads
of R425
T404
20mV
Align with Mono
Modulation Signal
AM ALIGNMENT (BAND BUTTON: AM)
Input
Output
Frequency
Level
Modulation
Connect to
Measuring
Equipment
Connect to
Align Part
Set Value
Remarks
T403
E3: 1.0±50mV
Digital
Voltmeter
Both Leads
of R419
Approx.
E3: (8.3±0.5V)
No Adjustment
Required
2
IF
No Broadcast Area
AM SG
(900 kHz)
No AGC
Effects
400 Hz 30%
Loop Ant
Electronic
Voltmeter
LINE 1
Output
Terminal
T401
Maximum
Output
3
Tracking
E3:600 kHz
AM SG
E3: 600 kHz
No AGC
Effects
400 Hz 30%
Loop Ant
Electronic
Voltmeter
LINE 1
Output
Terminal
T402
Maximum
Output
4
Tracking
E3:1400 kHz
AM SG
E3: 1400 kHz
No AGC
Effects
400 Hz 30%
Loop Ant
Electronic
Voltmeter
LINE 1
Output
Terminal
TC401
Maximum
Output
5
Repeat Steps 3 and 4, and set the output to maximum.
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TEL 13942296513 QQ 376315150 892498299
