TheDubiousDrDan

Tube Fanatic, Thank you. That version is a much higher quality and is more complete than the vesion that I was able to find. Here's a link to what I was looking at (http://akdatabase.org/AKview/albums/userpics/10004/Sansui%20G-5700,%20G-6700,%20G-7700%20Service.pdf ) just in case someone is looking at this thread for answers years down the road and the other link is broken.

You are correct in regard to the "safely operate" LED that illuminates when the relay gets switched on. Both are part of the "sansui f-2980" board within the unit. I may try to look up the schematic and poke around some to see if anything obvious pops out at me. My experience with circuits is more of a class-level than a real life level. So if that doesn't work out, I may try to get an estimate for someone to look at it. Thank you for the information and for your help. If anything else comes to mind, please let me know.

Hello. I'm wondering if anyone has had similar issues and might be able to help me. My father has a Sansui G-5700 that has been working just fine for years until a few weeks ago. Suddenly, it seems that the unit needs to "warm up" before it will actually work. By this I mean, that I can turn on the power and see a display and change the tuner, switch to the tape, etc. but no sound will actually come out. After about 10 minutes, I hear a "click" and the sound turns on. I figured it might be some sort of capacitor that's having trouble building up a charge because if I turn it off, then right back on (before a capacitor might have time to discharge), the sound comes out right away. Any idea how I might troubleshoot or repair this?