Mostly a common circuit, specify output device and pre-amp chip.
Rail voltages, and your problem is...?
Your location, age of unit, why are you not going to a technician?
Rail voltages, and your problem is...?
Your location, age of unit, why are you not going to a technician?
Most common output of 3055 & rail voltage is obviously 40v. Op-amp is MC1458. The set is tampered by some unskilled. The R C s changed as per his wish. So schematic is required to set at right. If you have or may be arranged that would be a great help.
Thanks
Thanks
https://www.homemade-circuits.com/how-to-make-hi-fi-100-watt-amplifier/
These will give you a decent idea of the expected values.
Or you could spend about 600 Rupees and buy a stereo Mosfet amp PCB, use that as the power section, better sound.
These will give you a decent idea of the expected values.
Or you could spend about 600 Rupees and buy a stereo Mosfet amp PCB, use that as the power section, better sound.
Thanks for your suggestions. Still I am in a hunt for SA5000 schematic for original perfect repairing of the unit.
Thanks once again
See, the amp section is a 40V implementation of the 2N3055 circuit, so the values used by Sonodyne and others will be similar, at least enough to start.
The pre-amp / selector section, again the IC is common, you can find the data sheet and start from application note provided.
This will improve your chances of repair to a large extent.
The pre-amp / selector section, again the IC is common, you can find the data sheet and start from application note provided.
This will improve your chances of repair to a large extent.
Power section is now ok as I think after rebuilding. Pre-amp section specially associated components around MC1458 are to be matched on trail on error basis. Because the values as per datasheet are not matching. So I prefer to get a original schematic to make it easier. On the PCB many long wire jumpers are used as I noticed.
Thanks