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ben · 12th Jun 2019, 1:26 pm

Thanks Ricard. I still have not had time to make a jig to be able to run the machine out of the case and take measurements. For the moment I am studying the schematic to ascertain exactly what components are in the path from the head in both record and play, which may be attenuating the signal. There really don't seem to be many. I thought of c155 for example, but that appears to be grounded in record mode.

I have been checking the head wiring and bias trimmer pcb but no sign of any shorts.
I will try to find some time to spend on this next week, my scope is also buried under a pile of other things!

BTW, forgot to mention earlier, the jacks are plastic.

12th Jun 2019, 1:26 pm	#9
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: Tandberg series 12 Thanks Ricard. I still have not had time to make a jig to be able to run the machine out of the case and take measurements. For the moment I am studying the schematic to ascertain exactly what components are in the path from the head in both record and play, which may be attenuating the signal. There really don't seem to be many. I thought of c155 for example, but that appears to be grounded in record mode. I have been checking the head wiring and bias trimmer pcb but no sign of any shorts. I will try to find some time to spend on this next week, my scope is also buried under a pile of other things! BTW, forgot to mention earlier, the jacks are plastic. __________________ Regards, Ben.