ELECTRICAL ADJUSTMENT-2/2 (A270 MODEL)
MAIN C.B (PARTS SIDE)1
T3
L6
C26
2
TP3
L3SP+Test point TP3TC4
SP-
TC1R8TC3
3TC24TP2T2
Input point TP2
L2
L5C1
Input point TP1
TP1
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< TUNER SECTION >
1. AM IF Adjustment4. FM IF Adjustment
Settings:Y Test point TP3Settings:Y Input point TP2
Y Adjustment location: T3Y Test point TP3
T3 ................................................................................Y Adjustment location: T2450kHz
T2 .............................................................................. 10.7MHz
2. AM Frequency Range Adjustment
Settings:Y Test point TP35. FM Frequency Range Adjustment
Y Adjustment location: TC4, L6Settings:Y Input point TP1
TC4.................................. 1635kHz (EXCEPT UHC MODEL)Y Test point TP3
TC4.................................................. 1750kHz (UHC MODEL)Y Adjustment location: TC3, L3
L6 ................................................................................TC3...................................................515kHz109MHz (UHC MODEL)
TC3..................................108.3MHz (EZLC, EZHC MODEL)
3. AM Tracking AdjustmentL3 ......................................................87MHz (UHC MODEL)
Settings:Y Test point TP3L3 .....................................87.4MHz (EZLC, EZHC MODEL)
Y Adjustment location: TC1, L5
TC1.................................. 1400kHz (EXCEPT UHC MODEL)6. FM Tracking Adjustment
TC1..................................................Settings:1500kHz (UHC MODEL)Y Input point TP1
L5 ................................................................................Y Test point TP3600kHz
Y Adjustment location: TC2, L2
TC2.............................................................................. 106MHz
L2 ................................................................................. 90MHz
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ACEC
