UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Thorn TX90

ppppenguin · 8th Aug 2006, 4:34 pm

I realised I had another set with TX90 chassis so I borrowed the TDA4505 from it. The problem is not the TDA4505. A lot of unsoldering just to prove the point.

I suppose I'm now going to change all the odd R and C around the TDA4505 that relate to the line scan and hope this cures it. Unless I've made a mistaken diagnosis and the problem is really in the line output.

8th Aug 2006, 4:34 pm	#4
ppppenguin Retired Dormant Member Join Date: Dec 2003 Location: North London, UK. Posts: 6,168	Re: Thorn TX90 - line timebase problem I realised I had another set with TX90 chassis so I borrowed the TDA4505 from it. The problem is not the TDA4505. A lot of unsoldering just to prove the point. I suppose I'm now going to change all the odd R and C around the TDA4505 that relate to the line scan and hope this cures it. Unless I've made a mistaken diagnosis and the problem is really in the line output.