UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Akai GX77 recap

John_BS · 15th Jan 2021, 9:43 pm

There's an awful lot of them, and there's the risk of collateral damage.

I'd recommend removing a respresentative sample* and testing them. The ones which tend to be critical are coupling C's which feed into a high impedance (c. 100k ish ) where any leakage current may upset the DC conditions. Check those for leakage at the approximate working voltage.

If they're OK, leave well alone.

John
* e.g. C10, C33, C39

15th Jan 2021, 9:43 pm	#2
John_BS Octode Join Date: Dec 2008 Location: Wincanton, Somerset, UK. Posts: 1,782	Re: Akai GX77 recap - which ones to change if any? There's an awful lot of them, and there's the risk of collateral damage. I'd recommend removing a respresentative sample* and testing them. The ones which tend to be critical are coupling C's which feed into a high impedance (c. 100k ish ) where any leakage current may upset the DC conditions. Check those for leakage at the approximate working voltage. If they're OK, leave well alone. John * e.g. C10, C33, C39