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Hantarex Polo/2 25-28 Dead - how to test B+ (SOLVED)
grantspain:
yes that would do it
princess prin prin:
Take it from a Polo for a quick test.
grantspain:
when i meant that would do it i meant the fault not the replacement resistor you sent the link for- you want a 2.2k same wattage
perjmolsen:
Hi
An update
I have now replaced the R156 2.2 7W resistor with a new one.
Now my B+ is steady at 145V :applaud:
And there is also picture, not a good one yet, but after I had turned the monitor on for about 10-15 sek, something blow up. :cry:
It where the BY228 at D44 - It got really hot and blew up, I have changed it with a new one, and after 10 sek. "on-time", I can feel that it is getting hot and I tun the monitor off, so that it does not blow one more time.
What can cause the BY228 diode to get so hot and blow up? :notworthy:
baritonomarchetto:
Recap your power supply circuit, if you have not done it yet