Quote:
Originally Posted by liammc00
The new flyback is an HR diamond so it's not an original. On terms of the color loss it's not a solder bridge as I changed all the caps and resolder the entire board that was done a while ago and it didn't have any trouble until now. When I still thought it was the PSU I took a couple of transistors out test and put them back. I did breck one transotor it was Q457 cupler driver which as porbly guess to horizontal optic cupler IC 469 (PS2021). I did use the NTE replacement for that transistor.
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For what it's worth, the only aftermarket replacement flys that were any good IMO were the H.R. Diemens. They cost as much or more than OEM but I'd buy them when the OEMs stopped supplying flybacks and HV Splitters (RPTV). I never had an issue with any, and never had one fail.
Others (like Asti Magnetics) were hit and miss. Some worked fine, but others required modifying the circuit (Zenith) to get them to play nicely with the sweep and shutdown circuits.
John