UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Sanyo VTC 9455 Betamax

simpsons · 19th Oct 2017, 8:28 pm

I agree with Nick, look for the obvious and should the led's not be lit, ask why not? Could the lack of illumination be down to a faulty 5 volt ic regulator supply line also used in the chrominance circuit for example.

The answer may or not be the reason for no colour but to dismiss his advise out of hand when you do not have a schematic could well leave you chasing dead ends.

Chris

19th Oct 2017, 8:28 pm	#7
simpsons Octode Join Date: Feb 2007 Location: Harrow, London, UK. Posts: 1,493	Re: Sanyo VTC 9455 Betamax - No colour I agree with Nick, look for the obvious and should the led's not be lit, ask why not? Could the lack of illumination be down to a faulty 5 volt ic regulator supply line also used in the chrominance circuit for example. The answer may or not be the reason for no colour but to dismiss his advise out of hand when you do not have a schematic could well leave you chasing dead ends. Chris