During preparation of the machine for VCFE i had a failure in the CRT's high voltage
part.
Yep, flyback burnt..
The high voltage winding was potted as a separate unit, enabled my to rewind the
flyback's primary (was burnt).
Then after replacing 2 transistors, 2 resistors and 1 diode I got a brief few seconds
of live out of the display again.
The hisses accompanying this would indicate the maybe the flyback HV isolation is not good
anymore, however i did not see sparks flying...
Current working assumption is that the secondary potted winding is also compromised.
I will also replace the HV voltage diode, is the HV capacitor something that fails
regularly ?
It is a 17 inch white monochrome Ball HD17-type monitor.
What are my options : repair again, looking for a generic flyback ( is there such a thing
?) , or dumping it into lake Zurich, which is my current mood....
I am not averse to putting some modern solution in place ( to generate the HV that is )
Jos