Playback Level AdjustmentRecord Level Adjustment
Procedure:Procedure:
Mode: FWD playback1. Record mode.
test tape
LINE IN
WS-48B
315Hz 50 mV (�23.8 dB)
(3kHz, 0dB)frequency counter
AF OSC
blank tape
600 &CS-123
setattenuator
set
LINE OUT
2. Playback mode.
Adjust RV431 (L-CH) and RV481 (R-CH), so that adjustment within
the following adjustment level.
recorded
level meter
Adjustment level:position
LINE OUT level: �7.7 ? 0.5 dB (301.5 to 338.5 mV)
Level difference between the channels: within ? 0.5 dB
set
Confirm that the LINE OUT level does not change even though
play and stop are repeated.
LINE OUT
Record Bias Adjustment
Procedure:
3. Confirm playback the signal recorded in step 1 become
1. Record mode.
adjustment level as follows.
LINE IN4. If these levels do not adjustment level, adjust the RV401 (L-
1) 315 HzCH) and RV451 (R-CH), on the MAIN board to repeat steps 1
} 50 mV (�23.8 dB)
2) 10 kHz
to 3.
AF OSC
Adjustment level:
blank tape
600 &CS-123LINE OUT level: �23.8 dB ? 0.5 dB (47.2 to 53.0 mV)
attenuator
Adjustment Location: TC board
set
2. Playback mode.
RV401
Record
recordedlevel
level meterRV451
position
PlaybackRV481
Record level
setRV431
bias
RV440 RV490
LINE OUT
3. Confirm playback the signal recorded in step 1 become
adjustment level as follows.
4. If these levels do not adjustment level, adjust the RV440 (L-
CH) and RV490 (R-CH), to repeat steps 1 to 3.
Adjustment level:
The playback outpout of 10 kHz level difference adjust
315 Hz reference should be 0 dB ? 0.5 dB.
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ACEC
