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Technics SU-C800
Stereo Control Amplifier (1997-00)
Specifications
Frequency response: 3Hz to 80kHz
Total harmonic distortion: 0.01%
Input sensitivity: 2.5mV (MM), 200mV (line)
Signal to noise ratio: 77dB (MM), 97dB (line)
Channel separation: 50dB (line)
Output: 200mV (line), 1V (Pre out)
Dimensions: 430 x 69.3 x 307mm
Weight: 2.7kg
Frequency response: 3Hz to 80kHz
Total harmonic distortion: 0.01%
Input sensitivity: 2.5mV (MM), 200mV (line)
Signal to noise ratio: 77dB (MM), 97dB (line)
Channel separation: 50dB (line)
Output: 200mV (line), 1V (Pre out)
Dimensions: 430 x 69.3 x 307mm
Weight: 2.7kg
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re: Technics SU-C800
Does anyone know if there is an external way to power the SU-C800 unit. In its standard form it suggests that is power supply is via the Power amplifier through a DIN cable. I have the SU-C800 unit I would like to use this on another power amplifier, however I cannot power the unit up. Any ideas please would be welcome.
re: Technics SU-C800
Hi,
If you take a look at the service manual at the bottom of page 9, it shows the connections to the power amplifier. It appears that you need a power supply with DC+15 (pin 5), DC-15 (pin 3), center tapped 13VAC (pins 1 & 2) and a DC 5 volt signal (pin 6) to turn the unit on. The grounds are pins 7 and 4.
The AC lines are labeled AC Backup and are probably not completely necessary. They are there to allow the microprocessor to remember the settings that were used before powering off. There is a possibility that the microprocessor won't function without this power. You will need to experiment.
So, if you or a friend is handy with electronics, it won't be too difficult to build a small power supply consisting of a 7815, 7915 and 7805 IC regulators. If you can't find a plug, you could hardwire directly to the unit. You also might be able to find a power brick with 15 volt positive and negative outputs. A 7805 could be added internally to provide the Power On signal generated from the 15 volt positive supply.
Hope this helps,
-bob
re: Technics SU-C800
Hi,
I just took a look on ebay and there are dual 15 volt power supplies available. Here is one from a reputable manufacturer. I have no affiliation with the seller.
https://www.ebay.com/itm/Mean-Well-PD-2515-AC-to-DC-Power-Supply-Open-Fr...
-bob