Shorted HOT on mits vs6015r?

B

BFriedl

Guest
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.

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

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.
Click to expand...
 
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! *******

Bill Jr wrote:

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 wrote:

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.
Click to expand...
 
Any ideas as to why I get no sound on this set? Is it possible that the
low B+ prevents sound circuit from working? Have yet to check the HOT
for shorts.

BFriedl wrote:
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?
Click to expand...
--
BFriedl
A+ Certified Technician
AIM: UACybercat
** Bear Down Arizona! **
******* Go Cats! *******
 
You won't get any sound until the set is up and running; that's the way you
know set is OK
 
If L8001 and L8002 are fried , then your STK IC's on the convergence board
are shorted

--
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@snet.net
========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd


"BFriedl" <junk-remove-@bfriedl.com> wrote in message
news:6YyDb.11480$J77.124@fed1read07...
Any ideas as to why I get no sound on this set? Is it possible that the
low B+ prevents sound circuit from working? Have yet to check the HOT
for shorts.

BFriedl wrote:
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! *******
Click to expand...
 
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