05-02-2012, 11:30 PM
First, the HT does go through the wavechange switch, but it does not have to. Actually, it's better for the ECC85 if it doesn't and is always there. SW3C on the Ecko diagram - take it out and join all three wires together. Insulate them and switch on. It now won't track HT on the control because there won't be any!
As far as the chassis shocks go, C64, C65 and R36 would be possible here. This set is AC only so the chassis earth is linked to transformer Ov by R36 and C65. The chassis is earthed and so is the mains transformer. If the mains transformer is leaking to earth then it can have this effect. So it may be the transformer. Try isolating it with paxolin and non-metallic screws. It's not ideal, but it'll 'get you home' as it were.
The DM70 is driven off the HT from the Screen Grid of V5. It might be worth replacing C72 as well as checking C43, C76, C26.
Good luck here. I've got another Ekco on a shelf here which does something similar. Tinkerbell always puts it close to me, I wonder what she's trying to say?
Cheers,
Steve P.
As far as the chassis shocks go, C64, C65 and R36 would be possible here. This set is AC only so the chassis earth is linked to transformer Ov by R36 and C65. The chassis is earthed and so is the mains transformer. If the mains transformer is leaking to earth then it can have this effect. So it may be the transformer. Try isolating it with paxolin and non-metallic screws. It's not ideal, but it'll 'get you home' as it were.
The DM70 is driven off the HT from the Screen Grid of V5. It might be worth replacing C72 as well as checking C43, C76, C26.
Good luck here. I've got another Ekco on a shelf here which does something similar. Tinkerbell always puts it close to me, I wonder what she's trying to say?
Cheers,
Steve P.
If we've always had that, why is the car boot open? You aren't smuggling in another old TV are you...?
