ghazzer
Senior Member
Updated 9/11/2014
I finally found one, but not in the condition I wanted - It won’t power up!
The price was acceptable, and now I have a good project for the winter. Arrival pics and nudies can be seen here:
http://s1110.photobucket.com/albums/h453/ghazzer/Sansui G-6700/Arrival/
The 7A main fuse is blown and the right (not left) channel output transistors are (not open) shorted. They are also NTE replacements, so someone has been in here before. I won’t be able to tell much more until I can get my workbench cleared and get set up for this one. I got started by searching AK for related threads and ran slam into a 27 page thread by Andreslober about his G-7500 – they both have the same main board & drivers. Kevzep & Overundr1 spent nearly 4 months helping him troubleshoot his Sansui and there is a wealth of good info there. Now I need to go back and re-read it all.
I won’t be working on this every day, so my restoration may last longer. ‘Hope I enjoy it and learn a little. The first thing I have been reminded of is to watch out for counterfeit parts!
Constructive comments and suggestions are welcome. I'll need all the help I can get - - -
.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Location of photos or images:
"X-Ray" of F-2980 board..... - pg 2 / post #27
Corrected Bias schematic.... - pg 5 / post # 84
New jumper pins................ - pg 5 / post # 89
Re-drawn Driver Circuits..... - pg 5 / post # 95
Etched F-3058 replacements - pg 9 / post # 162
Tracks of F-2853 board....... - pg 12 / post # 231
I finally found one, but not in the condition I wanted - It won’t power up!
The price was acceptable, and now I have a good project for the winter. Arrival pics and nudies can be seen here:
http://s1110.photobucket.com/albums/h453/ghazzer/Sansui G-6700/Arrival/
The 7A main fuse is blown and the right (not left) channel output transistors are (not open) shorted. They are also NTE replacements, so someone has been in here before. I won’t be able to tell much more until I can get my workbench cleared and get set up for this one. I got started by searching AK for related threads and ran slam into a 27 page thread by Andreslober about his G-7500 – they both have the same main board & drivers. Kevzep & Overundr1 spent nearly 4 months helping him troubleshoot his Sansui and there is a wealth of good info there. Now I need to go back and re-read it all.
I won’t be working on this every day, so my restoration may last longer. ‘Hope I enjoy it and learn a little. The first thing I have been reminded of is to watch out for counterfeit parts!
Constructive comments and suggestions are welcome. I'll need all the help I can get - - -
.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Location of photos or images:
"X-Ray" of F-2980 board..... - pg 2 / post #27
Corrected Bias schematic.... - pg 5 / post # 84
New jumper pins................ - pg 5 / post # 89
Re-drawn Driver Circuits..... - pg 5 / post # 95
Etched F-3058 replacements - pg 9 / post # 162
Tracks of F-2853 board....... - pg 12 / post # 231
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