Akai CS-705D

VI. AMPLIFIER ADJUSTMENT
LEFT CHANNEL RIGHT CHANNEL
VR3 10KB
Fig. 10
NOTES: 1. Set Tape Selector to Low Noise.
2. Set Dolby N.R. Switch to OFF.
3. Set Limiter Switch to OFF.
4. After Recording Level and Frequency Response Adjustments have been made with Low Noise
Tape, comfirm with Chrome and Ferri-Chrome tape only.
5. Because each of these adjustments are vital to perfect Dolby N.R. circuit operation, be sure that
they are carried out with as little error as possible.
6. Use the following cassette measuring tape:
Low Noise Tape: Fuji C-60LN
Chrome Tape: BASF #SM Chrome C-60
Fe-Cr Tape: SONY DUAD C-60
: Test Tape, Adjustment
Adjustment Item Result
Supply Signal Point
Playback Level 333 Hz, 0 VU —5.5 +0.5 dBm
Adjustment Test Tape (410 mV)
bioaatag! 333 Hz, 0 VU ovu
Sensitivity : VR2, 10 kB Beh As!
: Test Tape indication
Adjustment
Low Noise Blank
R ding Level —5.5 +0.5 dB
ear ree eit Tape, 1,000 Hz, VR3, 10 kB as Refer to Note 6
Adjustment : (410 mV)
0 VU recording
F ee Low Noise Blank 1,000 Hz to
requen
Tape, 1,000 Hz 10,000 Hz
ed VR4, 200 kB : Refer to Note 6
Responte 10,000 Hz, -20VU flat as
Adjustment ;
recording response
Chart-1