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-   -   Need help wiring replacement HVO-7 flyback (http://www.videokarma.org/showthread.php?t=269214)

VintagePC 06-24-2017 11:40 AM

Need help wiring replacement HVO-7 flyback
 
2 Attachment(s)
Hi folks... I need some help understanding the changes to wire in a replacement flyback in my set. I thought I had it but I'm now confusing myself the more I think about it, so some expert advice would be welcome.

Schematic (with wires to off-image things labelled) and the HVO-7's "info sheet" diagram attached. If I'm understanding the replacement correctly, I need to change where the width coil is connected, as well as the damper tube plate?

Or do I just leave the circuit alone and drop in the replacement to the taps with the closest ratio of resistances?

Thanks.

http://www.videokarma.org/attachment...1&d=1498322391

http://www.videokarma.org/attachment...1&d=1498322391

VintagePC 06-24-2017 07:11 PM

I think I'm missing pages of the Merit installation guide. It makes reference to schematic 5... so there are at least 4 more that I do not have.

Anyone have a scanned copy of the datasheet? (Merit Form 33 for the HVO-7?) Somebody on fleabay is scalping them for $20 but that's pretty rich for some paper.

Bill Cahill 06-25-2017 08:22 PM

If is reconnecting wires, it may be doable. If you are talking rewinding, that's a very difficult to do.. Besides being very special, the windings go in, and out.

VintagePC 06-25-2017 09:07 PM

Yes, just swapping one flyback assembly for another. But as noted, coil resistances differ and I am missing part of the replacement instructions.


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