UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help needed with

frsimen · 19th Mar 2023, 1:44 pm

Hello Mark,

Following another careful look at the circuit diagrams, I think you need to have a good check around IC6 pin 1 on the phase detector board, as that seems to be the source of the strange voltages. Follow the trace along its whole length. If you can't find anything, consider consider changing IC6.

Paula

19th Mar 2023, 1:44 pm	#258
frsimen Heptode Join Date: Jan 2011 Location: Croydon, London, UK. Posts: 773	Re: Help needed with - Racal Dana 9081 Hello Mark, Following another careful look at the circuit diagrams, I think you need to have a good check around IC6 pin 1 on the phase detector board, as that seems to be the source of the strange voltages. Follow the trace along its whole length. If you can't find anything, consider consider changing IC6. Paula