Aiwa NSX-TR99 Service Manual page 50

ELECTRICAL ADJUSTMENT -7/8
20. Record/Playback Sensitivity Check (DECK 2 for Normal Tape)
Requirements
• Measuring instrument: Same as the above, 18
Test tape: TTA-602 (NORMAL)
Test point: TP8 (Lch),TP9 (Rch)
Input point: AUX (1 kHz)
1) Insert the test tape (TTA-602) to DECK 2, and record 1 kHz signal from AUX.
2) Adjust the attenuator so that the output levels at TP8 and TP9 are 100 mV.
3) Play back 1kHz, and check that the output level is ranged within 0 dB
to the recording output level.
21. Record/Playback Sensitivity Check (DECK 2 for CrO2 Tape)
Requirements
• Measuring instrument: Same as the above, 18
Test tape: TTA-665 (CrO2)
Test point: TP8 (Lch),TP9 (Rch)
Input point: AUX (1 kHz)
1) Insert the test tape (TTA-665) to DECK 2, and record 1 kHz signal from AUX.
2) Adjust the attenuator so that the output levels at TP8 and TP9 are 100 mV.
3) Play back 1kHz, and check that the output level is ranged within 0 dB
to the recording output level.
2.5 dB compared
3 dB compared
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