Electronics Forum / Repair / December 2007

We have a blown Hastings VT-4B.  The part is D3 as listed in
http://www.repairfaq.org/sam/vt46sch.gif
The original part number looks like V1301A1 (13-10-076A).  I can't
find any specs on this part.  Anyone have a datasheet or specificatins

Within the past few months I installed a new fluorescent shop light fixture
in the basement.  Came from Lowe's if memory serves.  This thing has been
killing bulbs ever since.  Three replacements already.  I've never had this
experience with a shop light in the past.  Of course ...

Made in mid 2006...refurbished, now dead again. RCA M # 32V434TYX5 Ch
# ATC 010A dead.
I found one of the springs on the CRT ground on the main board, & the
front audio/video jack wires were pinched in the back. Bad sets I

New here ...
Yamaha PSR-12, has maybe 72 keys, around 24 voicings, flexible-speed
percussion, canned tunes, etc. About 20 years old.
I turn it on lately, it works fine for 2-10 min., then freezes.

I bought a turbo oven/ microwave oven last year. I am getting
ready to install it. I tested it last year and seemed to work,
but I did get an error. Strange instructions I am not familiar with,
like letting it cool down before you can use the microwave.

Can anyone provide the specs (of any kind) for this receiver.  Manual
would be great, but really
looking for ANY specs.
Any help appreciated. Any questions, let me know

LCD Monitor Retention Fix
LCD monitors do not burn in. But, they do have the possibility of
having image retention. This looks like a burnin, but it is not burned
in.

does anyone have some low cost sources for replacement TV flybacks?
I have a 1986 13" TV that it seems the EHT/flyback smoked itself the other
night.
(a good POP,and lots of smoke,no other components appear to have let out

I have a KP-46s25 made in Nov 96.  There is no pic, I assume the
projector is bad.  Where can I get the service manual or schematic for
this thing?

TV Model:
Quasar YTS2623EK
Problem:
Low Sound Level (half of normal)

This Proton WT-3650 television is about eleven years old. The CRT has a 16X9
aspect ratio. The symptom was that the power relay would just click, click,
click, upon power on. I found and replaced two shorted diodes in the
switching power supply. I also checked for cold solder joints ...

This set came in with a complaint that it smoked and now is dead. The
flyback is not cracked and there are remnants of exploded components
anywhere. There is also no residual smell from anywhere one the board
either. The set has a short between E-C on the HOT. I pulled the

My 50" mitsubishi VS-50501 will power on with a click but turn right
back off any suggestions please help already checked fuses

I picked up an as-is JVC receiver to play with on eBay recently.  From
what I've read, this particular model is renowned for running
extremely hot.  Removing the top cover revealed that this is actually
the case: the plastic outer sleeves of all four of the large power

I have a Sony CCD F55 that was given to me. Upon turning it on, I
looked through the viewfinder only to see the picture flipping (like a
television with it's vertical hold out of adjustment).  Is there an
easy way to fix this problem, or will it have to go in for serious