Fixing a ViewSonic N3260w w/ later power supply
I also have a Viewsonic N3260W with a bad power supply that does not have 5v standby. I have read Bud Martin's troubleshooting guide, have the service manual and PS schematic, and have replaced all the caps, one of which apparently exploded. I am beginner/intermediate and have a good DMM.
My power supply is the FSP228-3F01, not the FSP212-3F01 everyone else seems to have trouble with at Q7 and the zener diode (ZD4), in addition to the same bulging caps everywhere that I have replaced. My Q7 and zener seem fine, as well as the other transistors, although I did not unsolder them from the board. Nothing was shorted there.
Attached is a schematic showing voltages I was able to measure at various locations off the top of the board while running on 120v AC household supply.
What are my next troubleshooting steps?
I also have a Viewsonic N3260W with a bad power supply that does not have 5v standby. I have read Bud Martin's troubleshooting guide, have the service manual and PS schematic, and have replaced all the caps, one of which apparently exploded. I am beginner/intermediate and have a good DMM.
My power supply is the FSP228-3F01, not the FSP212-3F01 everyone else seems to have trouble with at Q7 and the zener diode (ZD4), in addition to the same bulging caps everywhere that I have replaced. My Q7 and zener seem fine, as well as the other transistors, although I did not unsolder them from the board. Nothing was shorted there.
Attached is a schematic showing voltages I was able to measure at various locations off the top of the board while running on 120v AC household supply.
What are my next troubleshooting steps?
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