Shorted HOT on mits vs6015r?

[BFriedl]

Okay...I just fixed my power supply and put it back in the set to try it
out and with the 75w bulb, got +131v on B+, but when it was in the set,
got +1.2v. Seems that power supply still is sick? Replaced all of Bill's
recomendations already, and checked ic900, and ic950, all seemed to be ok.

--Brian

 

[BFriedl]

If you get 130 volts good with a 75 watt bulb then the power supply isn't
your problem.
Probably shorted H.O.T. or bad flyback.
Remove the connector (PA I think) and check for a short.
Don't overlook the 2 other voltages supplies from the STRS6310 side of the
SMPS.
Check their loads for shorts.

Good Luck,
Bill Jr

 

[BFriedl]

doh! Never thought of checking for a short there...good thing the power
supply still works. Forgot to mention that i get HV sound, but no audio
when set is connected to ext1 or ext2. Also, convergance board was not
conneced this whole time, as this board was the first indication of bad
power with fried inductors l8001 and l8002. What could be the reason for
no audio?

--
BFriedl
A+ Certified Technician
AIM: UACybercat
** Bear Down Arizona! **
******* Go Cats! *******

 

[GPG]

BFriedl <junk-remove-@bfriedl.com> wrote in message news:<L8WCb.6439$J77.3288@fed1read07>...

Okay...I just fixed my power supply and put it back in the set to try it
out and with the 75w bulb, got +131v on B+, but when it was in the set,
got +1.2v. Seems that power supply still is sick? Replaced all of Bill's
recomendations already, and checked ic900, and ic950, all seemed to be ok.

--Brian

There does not appear to be anything wrong with psu apart from the way
it has been treated. Do a simple resistance check from the B+ input to
the board and
circuit ground. It should be high. A low reading indicates a problem.
Disconnect the HOT collector and compare.