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This manual provided the necessary information to properly use the C-3 deck. The manual was an excellent reproduction and very clear.
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Product was very good. Received quickly and complete
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Although printing quality is not the best, the manual was very helpful in order to reactivate this ancient but still good electronic musical instrument.
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as a first-time user and buyer from this site, i found the overall service outstanding!! this product is a godsend as, without it, i would never have been able to find my way around and use my machine as intended. i will certainly use this site again as required. many many thanx!!
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This manual is exactly what I needed. This site always has every manual I need, and it is also much less expensive then most other sites. This is the only manual site I will use.
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1 dB of peak.
Tape Speed Adjustment Procedure : Mode : Playback
test tape WS-48B (3kHz, 0dB)
frequency counter
L-CH peak
output level
within 1dB
set
within 1dB
+ � MD OUT (JK301)
screw position
R-CH peak screw position
1. Insert the WS-48B into the deck, and playback. 2. Adjust the VR770/RELAY board so that the frequency counter reading becomes 3000 ± 90 Hz. Adjustment Location : RELAY board Sample Value of Wow and flutter W.RMS (JIS) less than 0.3% (test tape: WS-48B)
MD OUT (JK301)
L-CH peak R-CH peak
3. Mode : Playback
test tape P-4-A100 (10kHz, �10dB)
Playback Level Adjustment
oscilloscope
L set R
Procedure : Mode : Playback
test tape P-4-L300 (315Hz, 0dB) level meter
MD OUT (JK301)
set
Waveform of oscilloscope
MD OUT (JK301)
in phase
45 ° good
90 °
135 °
180 ° wrong
Deck is VR703 (L-CH) and VR704 (R-CH) so that adjustment within the following adjustment level. Adjustment level : Playback level: 301.5 to 338.3 mV (�8.2 to �7.2 dB) level difference between the channels: within ±0.5 dB Adjustment Location : TAPE PREAMP board
4. After the adjustments, apply suitable locking compound to the parts adjusted. Adjustment Location :
FWD side Adjustment screw
REV side
MC-Service
�9�
 $4.99 CMTED1 SONY
Service Manual Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…
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