UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help! Problem with my Technics Amp cutting out .

Drewpicker · 6th Jul 2020, 1:38 pm

I seem now to have lost the 39v at C701 and C702 ... the amp is still working and cuts out when i increase the volume ... i tested the ac outs of the transformer and all are ok .... this week-end when 39v were present the amp stayed on longer at higher volume ... maybe the fault is in this line ...and this will help narrow down the possibilities... ive tried to understand the power lines in the schematic but its beyond me ... maybe ive done something to cause this but i'm pretty sure this isnt the case .... thanks for any help with this ...

6th Jul 2020, 1:38 pm	#41
Drewpicker Tetrode Join Date: Jun 2020 Location: Montpellier, France Posts: 56	Re: Help! Problem with my Technics Amp cutting out . I seem now to have lost the 39v at C701 and C702 ... the amp is still working and cuts out when i increase the volume ... i tested the ac outs of the transformer and all are ok .... this week-end when 39v were present the amp stayed on longer at higher volume ... maybe the fault is in this line ...and this will help narrow down the possibilities... ive tried to understand the power lines in the schematic but its beyond me ... maybe ive done something to cause this but i'm pretty sure this isnt the case .... thanks for any help with this ...