Electronics Forum / Repair / July 2004

Re: RCA Chassis CTC197CE2, Model F32683SB
The jungle IC is an LA7612N. TV has sound but no video & no OSD.
Orignially TV would click three times and do nothing. I changed the
flyback. Now I have a raster & sound, but no video. Does anybody know if

I have this set in the shop for lightning related problems which we
resolved, however it has a very strange sound problem. The audio on
channel three is much lower than the other channels. Its necessary to
raise it almost full for normal listening level. The customer said its

I have a small Black & Decker bench grinder that I picked up at a
second-hand store. When turned on, it just buzzes loudly and will not spin,
even when forced. I removed the rotor from the stator and sanded rust off of
both but to no avail. Any help would be greatly appreciated.

Does anyone have any ideas on this?  When I power on set, it gets to the
point where the raster shows but then cycles down.  This repeats until
the set is powered down.  Have checked for obvious bad components and
bad solder joints but since the set powers off, it is not possible to

9" RCA tv/vcr combo model:T09085,chassis:M5B09,year:Oct 2002,UL
listed:289X (Orion,Emerson).No video from tuner or tape playback,tv
has raster but a dark snowy (barely visible) picture is present during
tuner or tape playback.

I've been given a friends PC Power supply to repair. It's a Enermax EG651
(550W) model. It was damaged when he plugged it into a 240V supply while
the voltage select switch was on 115V (Doh!!).
Anyway a quick visual shows that two large ceramic capacitors are blown.

I have an HP D6433A monitor that has excellent color but won't get
very bright.  Any ideas on how to brighten the screen?  I wouold also
like to get a repair manual for this monitor. Thanks.

This Aiwa XP-SR320 "Cross Trainer" portable CD Player AM/FM Stereo seems
completely "dead".
   It's got two new AA batteries, and I took the inside covers/plates off
and verified the +3vdc at the battery posts, but don't know what else to

I have a 10 year old JVC 27" with vertical collapse and am hopging to
get some specific help along the lines given in this similar article:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&selm=3e4059ad.43485069%40news
1.on.sympatico.ca
Can anybody with a SAMS/schematic at least ...

In another thread I was asking about the possibility of repairing a
mains toroidal transformer.  I've now established that it's out of the
question.  I'm now wondering if I can replace it with three ordinary
ones instead ?  Three, because the secondaries on the toroid were 21v,

9" RCA tv/vcr combo model:T09085,chassis:M5B09,year:Oct 2002,UL
listed:289X (Orion,Emerson).No video from tuner or tape playback,tv
has raster but a dark snowy (barely visible) picture is present during
tuner or tape playback.

Why does ballast transformer hum? what is actually moving inside it to make
it hum? I wonder

Hello friends!
I'm a brazilian repair technician and I'm worried about our future.
The tendence is production of disposable equipaments.
How about your countries?

Would anyone have the part # for Sony SLV-575UC video heads?
This VCR all of a sudden started to freeze up (the buttons worked
no longer). It was ok again after unplugging it for a few seconds.
Unfortunately, the 2nd time this happened, it froze up while the

Hi. I'm having trouble finding replacement electrolytic caps with the
following specs:
  Radial
  3300 microfarad