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1. MW(AM)/LW ADJUSTMENT
ITEM
CONNECTION
STEP | S.S.G
RADIO Freq.
Adjustment Point
RESULT
Frequency
Setting
1
522(530)KHz
522 or S30KHz
L102
D/TESTER:
AM OSC coil
1.2 + 0.05V
MW(AM)
FREQUENCY
Fig. 2
2
1611(1720)KHz
1611 or 1720KHz
T102
D-TESTER:
RANGE
AM OSC trimmer
7.8 + 0.05V
3.
Repeat steps 2 and 3 several times.
IF
Fig. 1
4
594KHz
594KHz
T201
Maximum
AM IFT coil
output
5
594KHz
594KHz
AM AN coil
Maximum
L101
output
MW(AM)
Fig. 2
TRACKING
6
1404KHz
1404KHz
AM ANT trimmer
Maximum
(1104)
output
ae
Repeat steps 5 and 6 several times
8
146KHz
146KHz
L104
D-TESTER:
LW
LW OSC coil
0.9V + 0.05V
FREQUENCY
Fig. 2
RANGE
9
290KHz
290KHz
T103
D-TESTER:
LW OSC trimmer
4.95V+0.05V
10
Repeat steps 8 and 9 several times
an)
170KHz
170KHz
L105
Maximum
LW ANT coil
output
LW
TRACKING
Fig. 2
12
250KHz
250KHz
T101
Maximum
LW ANT trimmer
output
13
Repeat steps 11 and 12 several times
2. FM: NO ADJUSTMENT
DIGITAL-TESTER
MAIN PCB
Fig. 1
osc
VIvM
LOOP ANT
MAIN PCB
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