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ELECTRICAL ADJUSTMENT-4/4 (K, EZ MODEL)
< TUNER SECTION >
1. FM VT Check Settings: � Test point: TP4 Method: Set to FM 87.5MHz, 108.6MHz and check that the test point is more than 0.5V (87.5MHz) and less than 8.0V (108.6MHz). 2. FM TRACKING Check Settings: � Test point: TP8 (Lch) TP9 (Rch) Method: Set to FM 98.0MHz and check that the test point is less than 13dBµV. 3. DC Balance Adjustment Settings: � Test point: TP5, TP6 � Adjustment location: L771 � Input level: 50dBµV Method: Set to FM 83.0MHz, 98.0MHz and adjust L771 so that the voltage between TP5 and TP6 becomes 0V±0.04V. 4. VT MW Check Settings: Test point: TP4 Method: Set to AM 1602kHz, 531kHz and check that the test point is more than 0.6V (531kHz) and less than 8.0V (1602kHz). 5. AM IF Adjustment Settings: � Test point: TP8 (Lch) TP9 (Rch) � Adjustment location: L772 Method: Set to MW 999kHz, 1000kHz and adjust L772 so that the Wave to maximum. 6. MW Tracking Adjustment Settings: � Test point: TP8 (Lch) TP9 (Rch) � Adjustment location: L981 Method: Set to MW 999kHz, 1000kHz and adjust L981 so that the test point is less than 58dBµV and becomes maximum. After adjust, lock it with PARAPFIN. 7. LW Tracking Adjustment Settings: � Test point: TP8 (Lch) TP9 (Rch) � Adjustment location: L941 (Low) TC942 (Hight) Method: Set to LW 144kHz, 290kHz and adjust L941, TC942 so that the test point is less than 70dBµV(low), 66dBµV(hight) . After adjust, lock it with PARAPFIN.
< DECK SECTION >
8. Tape speed Adjustment Settings: � Test tape: TTA-100 � Test point: PHONES JACK (J201) � Adjustment location: SFR1 Method: Play back the test tape and adjust so that the output frequency is 3000Hz ±30Hz. 9. Azimuth Adjustment Settings: � Test tape: TTA-320 � Test point: PHONES JACK (J201) � Adjustment location:Azimuth adjustment screw Method: Play back the test tape and adjust so that the output is maximum. 10. REC Bias Adjustment Settings: � Test tape : TTA: 602 � Test point: JW222 + JW221 � Adjustment location: L331 Method: Rec play the test tape and adjust so that the test point frequency is 83kHz±0.5kHz.
< CD SECTION >
11. CD Focus BIAS Adjustment Settings: � Test Disc: TCD-782 � Test point: TP1 + Vref � Adjustment location: SFR530 Method: Play back the test CD track 2 and adjust so that the output level is DC 0mV±10mV.
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