Aiwa FR-A351, Service Manual, Page: 10 / 14

ELECTRICAL ADJUSTMENT
PRACTICAL SERVICE FIGURE
11
TRANSISTOR ILLUSTRATION
A1267-Y/GR
C3199-Y STS8050-D
1. LW IF Adjustment
Setting : • Test point : TP1, 2(IN), TP8, 9(OUT)
T2 . . . . . . . . . . . . . . . . . . . . . 450 kHz
2. FM IF Adjustment
Setting : • Test point : TP2, 3(IN), TP8, 9(OUT)
IT1 . . . . . . . . . . . . . . . . . . . . 10.7 MHz
3. LW FREQ, RANGE Adjustment
Setting : • Test point : L1(IN), TP6, 7, 8, 9(OUT)
L4 . . . . . . . . . . . . . . . . . . . . . 145 kHz
TC4 . . . . . . . . . . . . . . . . . . . . 295 kHz
4. LW Tracking Adjustment
Setting : • Test point : L1(IN), TP6, 7(OUT)
L1 . . . . . . . . . . . . . . . . . . . . . 150 kHz
TC1 . . . . . . . . . . . . . . . . . . . . 285 kHz
5. FM FREQ, RANGE Adjustment
Setting : • Test point : TP4, 5(IN), TP6, 7, 8, 9(OUT)
L3 . . . . . . . . . . . . . . . . . . . . 87.4 MHz
TC3 . . . . . . . . . . . . . . . . . . 108.3 MHz
6. FM Tracking Adjustment
Setting : • Test point : TP4, 5(IN), TP6, 7(OUT)
TC2 . . . . . . . . . . . . . . . . . . . 106 MHz
<LW SECTION>
Sensitivity Less than 60 dB (150 kHz)
(S/N 10dB) Less than 58 dB (200/285 kHz)
S/N (Input 70dB) Less than 15 dB (150/200/285 kHz)
Distortion Less than 3 % (1000 kHz)
Intermediate frequency 450kHz
<FM SECTION>
Sensitivity (3% dist.) Less than 20 dB (88/98/108 MHz)
Distortion (at 60dB) Less than 2% (98MHz)
Intermediate frequency 10.7MHz