29-06-2017, 04:01 PM
The boards in the bottom of the chassis (video, decoder, frame/sound) were filthy so I decided to wash them. Just hot water, washing up liquid and a small paintbrush. Much nicer now. Tried to avoid getting water in the coils, don't care about the preset pots as they're easily replaced and probably need to be changed anyway.
I'll dry them in the airing cupboard before trying them.
Probably won't repeat on the vertically mounted boards as they are less dirty. Don't fancy doing the IF with all its coils. EHT and linescan should be OK as the jellypot transformers are well sealed. System switches shouldn't mind a wash but may well want some servisol afterwards. Convergence board is clean as it's mounted upside down. Regulator may get a wash but it's not too bad after a dry brush down.
I'll dry them in the airing cupboard before trying them.
Probably won't repeat on the vertically mounted boards as they are less dirty. Don't fancy doing the IF with all its coils. EHT and linescan should be OK as the jellypot transformers are well sealed. System switches shouldn't mind a wash but may well want some servisol afterwards. Convergence board is clean as it's mounted upside down. Regulator may get a wash but it's not too bad after a dry brush down.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
