AIWA NSXVC88
Manual de Servicio

9. DC Balance / Mono Distortion Adjustment Settings : � Test point : TP3, TP4 (DC Balance) : TP5(Lch), TP6(Rch) (Distortion) � Adjustment location : L801 � Input level : 60dBµV Method : Set to FM 98.0MHz and adjust L801 so that the voltage between TP3 and TP4 is 0V ± 300mV with minimum distortion.

15. REC/PB Sensitivity Check (DECK 2) Settings : � Test tape : TTA�602 � Test point : TP7(Lch), TP8(Rch) � Input signal : 1kHz (LINE IN) Method : Apply a 1kHz signal and REC mode. Then adjust OSC attenuator so that the output level at TP7, TP8 becomes 280mV. Record and play back the 1kHz signals and check that the output is �1dB ± 3.0dB.

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10. Tape Speed Adjustment (DECK 2) Settings : � Test tape : TTA�100 � Test point : TP7(Lch), TP8(Rch) � Adjustment location : SFR1 Method : Play back the test tape and adjust SFR1 so that the frequency counter reads 3000Hz ± 5Hz (FWD) and ± 45Hz (REV) with respect to forward speed. 11. Head Azimuth Adjustment (DECK 1, DECK 2) Settings : � Test tape : TTA�300 � Test point : TP7(Lch), TP8(Rch) � Adjustment location : Head azimuth adjustment screw Method : Play back (FWD) the 10kHz signal of the test tape and adjust screw so that the output becomes maximum. Next, perform on REV PLAY mode. 12. PB Frequency Response Check (DECK 1, DECK 2) Settings : � Test tape : TTA�300 � Test point :TP7(Lch), TP8(Rch) Method : Play back the 315Hz and 10kHz signals of the test tape and check that the output ratio of the 10kHz signal with respect to that of the 315Hz signal is 0dB ± 3dB. 13. PB Sensitivity Check (DECK 1, DECK 2) Settings : � Test tape : TTA�200 � Test point : TP7(Lch), TP8(Rch) Method : Play back the test tape and check that the output level of the test point is 280mV ± 3dB. 14. REC/PB Frequency Response Adjustment (DECK 2) Settings : � Test tape : TTA�602 � Test point : TP7(Lch), TP8(Rch) � Input signal : 1kHz / 10kHz (LINE IN) � Adjustment location : SFR351 (Lch) SFR352 (Rch) Method : Apply a 1kHz signal and REC mode. Then adjust OSC attenuator so that the output level at the TP7, TP8 becomes 28mV. Record and play back the 1kHz and 10kHz signals and adjust SFRs so that the output of the 10kHz signals becomes 0dB ± 1.0dB with respect to that of the 1kHz signal.

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B FRONT C.B
FL201

IC101

TP10(GND) L101

TP9

1

1. µ-CON OSC Adjustment Settings : � Test point : TP9 and TP10 (GND) � Adjustment location : L101 Method : Insert AC plug while pressing TUNER function key. Adjust L101 so that the frequency at the test point is 208.80Hz ± 0.2Hz.

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