Aiwa FR-A270 Service Manual page 12

ELECTRICAL ADJUSTMENT-1/2 (A275 MODEL)
MAIN C.B
2
2
3
TC1
6
Input point TP2
Input point TP1
< TUNER SECTION >
1. AM IF Adjustment
Settings: • Test point TP3
• Adjustment location: T3
T3 ................................................................................ 450kHz
2. AM Frequency Range Adjustment
Settings: • Test point TP3
• Adjustment location: L6, TC4
TC4 .................................. 1635kHz (EXCEPT UHC MODEL)
TC4 .................................................. 1750kHz (UHC MODEL)
L6 ................................................................................ 515kHz
3. AM Tracking Adjustment
Settings: • Test point TP3
• Adjustment location: TC1, L5
TC1 .................................. 1400kHz (EXCEPT UHC MODEL)
TC1 .................................................. 1500kHz (UHC MODEL)
L5 ................................................................................ 600kHz
4. FM IF Adjustment
Settings: • Input point TP2
• Test point TP3
• Adjustment location: T2
T2 .............................................................................. 10.7MHz
(PARTS SIDE)
L6
L3
TC4
TC3
TC2
TP2
L2
TP1
ANT1 C1
5
1
T3
TP3
SP+
SP-
T2
L5
4
3
5. FM Frequency Range Adjustment
Settings: • Input point TP1
• Test point TP3
• Adjustment location: TC3, L3
TC3 ................................ 109MHz (EXCEPT EZHC MODEL)
TC3 .............................................. 108.3MHz (EZHC MODEL)
L3 ................................... 87MHz (EXCEPT EZHC MODEL)
L3 ................................................. 87.4MHz (EZHC MODEL)
6. FM Tracking Adjustment
Settings: • Input point TP1
• Test point TP3
• Adjustment location: TC2, L2
TC2 .............................................................................. 106MHz
L2 ................................................................................ 90 MHz
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Test point TP3