Electronics Forum / Repair / July 2004

Hello: i am in need of the instruction manual and schematic diagram for the
B&K Model 970 Transistor Equipment Manual.
Will pay all expenses
Thanks

would like to know can someone help me with my windows xp? in my add &
remove program i have about 20 windows xp Hotfix (sp2) would like to know
what are they in there for,i did'nt installthese programs. and would it hurt
my computer if i remove them out the program.please help oh ...

Hi , I have a RCA Model F26103CG (chassis ctc149 b , i think) that has
retraces lines.
When increas/decrease the screen control , voltage at the screen pin on the
CRT socket is moving ( ~200 to 500 volts) but I did not put the control to

This unit came in with split image (r and l switched) and owner said
they may have changed quite a few settings in service mode (was
probably ADDR mode). OSD is fine, but all inputs are affected.
Performed QA02 reset and the screen cleared up.  While trying to

I have read that the "searching for satellite signal"  in this model is
caused by a defective zener diode. common problem with
this model . Does anybody know where this defective diode is locate on
the circuit board and its value . The only thing

Hi!  I just replaced the microcontroller IC (IC101) in my Mitsubishi
CS-20201 (20" CRT TV manufactured in April 1995) to correct a problem
with the tuner (which did actually work, BTW).  But now some of the
screen adjustments seem to be slightly off (sub-brightness, horiz

I have a large Metcal "System 1000" Volume Fume extractor with a bad power
switch.  I've never seen any switch like it.  The printing on the switch
says:
"Weber Unimat / WTNL 22-551"

  This TV shut downs every 10 min. I  resoldered
 the PSU and deflection area and replaced the high
 ESR caps but no help. TV is old and have no sleep
 function. Does anyone have any idea as to what's going on?

it says: TI 5T 5467 (or maybe the last number is a one)
this came out of a phono preamp, it sits across from a 2N5087 which I
subbed with NTE 159 equiv.
I was unable to cross this other tranny through NTE.

I tried to buy Service Manual for Sony DCR TRV320E from
http://www.service-manuals.net.  It appears that they are no longer in
business. I lost my $20.
Anybody done business with this guy

Has anyone had expierence taking the back off this monitors. I know
it's dangerous letal voltages even when unplued etc.. There are 2
screws on the bottom but that is all I can find.

I have a AV Pioneer elite 07TX, (7 years old). I was watching a dvd when the
sound went out, still had video and all the display lights worked, controls
switched too. But no sound. I opened it up and looked for any solder joints
on any hi heat parts (power sply, amps, etc...) but ...

the green power led on but no display,please help!

Sorry if this is the wrong group to post this question.
I've got a 27" Sony with PIP (about six years old). Through the menu,
it allows the user the ability to enter a certain number of captions
to display television call letters for channels. I'd like to clear

Help!
Successfully replaced fuse, however...