When its disconnected from the unit, the green light is on (also on when connected to unit) and i have 15v
on the white wire, I wish i knew howto turn the PS on when out of the unit before i removed a bunch of caps,
but i wasnt sure how the switch worked with the PS to turn it on.? With the PSU out of the unit, i used my
DMM to check for shorts on the connections on the unit where the PSU connects and wasnt able to find any
shorts on them. Perhaps im doing this wrong?? Hopefully not as id hate to think the psu failed and took out
the unit too.
I think im chasing a red herring, Sadly my knowledge of SMPS's isnt great so im not
sure where else to go from here. I have pulled and checked all the electrolytics that were showing shorts
while in circuit and they all test good, i pulled?a few of the 1uf ceramics and they check good as well.? ?The
short i thought i had on the output on J11 was?actually a 15ohm reading, i was tired and forgot to switch
to resistance mode, after seeing a 15 ohm resistor inline with it, i felt really dumb and went to bed lol. I DO
have a short on both C59&63, both are ceramics and the short is still on them after removing them. Im
wondering if maybe the transformer didnt short? Though that seems like itd be pretty rare to have happen.
And if it was, im sure id be dead in the water, i highly doubt id be able to find a replacement.?
Any ideas or where to possibly go from here would be wonderful if anyone is able educate me some etc
and id be most grateful! :)
**update** So i got home and decided to check again the power rail on the unit where j11 connects, and
i show about 77-80ohms give or take on the 5.2v connections.? Would this be normal or close enough to consider
it a short?? Ill be home for the next few weeks as im now awaiting neck surgery the 1st of april so i?
should have more time to test etc from here forward to april.?
Thanks Robert!
David
