Electronics Forum / Repair / March 2005

Have just worked on a Sony N3 with the typical CXA2043 deflection problem.
That IC has been replaced and previos jitter has gone but there still seems
to be a slight problem. There are fairly faint scrolling horizontal lines
that appear worse on the right hand side of the screen ...

 I bought this DVD/VCR combo unit as-is and not working, hoping I could fix
it up and keep it for my own use (I'm too cheap to buy new). The seller said
that the DVD didn't work, but when I got it home and tried it, the first
disc I put in played fine. The VCR had some problems ...

Read about power problems and some mentioned a fix was replacing th
fuse as there was a bad batch.  1. Where does one find the fuse?  2.
How easy is it to replace?  3.  What is fuse number if not on old one
4.  Is it easy to replace.  I do not mind disassembling the chassis.

I've got a problem with the Counter/Timer/Multimeter (CTM) function
of a Tektronix 2236 oscilloscope. The CTM is not operating correctly
when I try to measure the voltage on channel 1. When I try to measure
the DC voltage of channel 1 (DC Coupling), the fluorescent display

I need OEM part #'s for Mabuchi 5.9v DC motor generic # RF-300S-12350:
shaft length=12 mm/0.47" (a longer length is fine as I can cut it)
motor height=12mm/0.47"
motor diameter=24mm/0/94"

Panasonic CTP-31XF30 television, chassis No: ALEDP214.  Set has intermittent
single horizontal line in the middle of the screen.  From my reading, I have
determined that I should check the power supply to the vertical deflection
chip, replace electrolytic capacitors in the vertical ...

I just picked up, from a moving neighbor who left it behind, an old 27"
Sony KV2781R, mfd March 1987.  I can't pass up a freebie.  When you
push the on-off switch there is a click and a degaussing sound, but
nothing more.  Are there any frequent/common problems that I should

Have no schematics, nor service manual, trying to rescue this huge work of
art tv from the dump...
symptoms: picture goes off and on repeatadly once per second, colors are
way off, sound OK. Scoped the RGB signals going to the CRT board and

Can the cracked (and separating) core of a FBT cause a problem in a Zenith
television?  I'm not speaking of the split between the top and bottom, but
the bottom section is cracked and pulling apart.  Thanks.

Hope this is not too far off topic
We are a fast growing automotive electronics remanufacturer in Kent,
UK, looking for R&D and repair people. Struggling to find, advertising
in local papers useless, anybody any ideas as to how to find these

   I own a 52-unit apartment complex.  About a year and a half ago, I
installed power gates.  The power gates use a Multicode 300MHz
receiver, and I issue keychain remotes to all the tenants.  I am having
a problem with the remotes dying.  At thirteen bucks a remote, it

A friend of mine has recently acquired a brand new Uher professional tape
deck. I have not had a chance to look at it, but according to him it has the
following problem:
(snip) I tried various cassettes from my library and they all seem about 20%

Recently I bought a new LCD screen to my laptop Soyo PW9800 to replace
an broken one. I just attached the new screen to the cables and turned
on the laptop to see if the screen was OK.
When I did this, it displayed a freaky image (some pixel lines on,

Does any one know where I can find a flyback for a 40" Mitsubishi
television model # cs-40707 Part # 334d100021
or a good news group to go to that could help?
thank you

I recently purchased a non functional PS2 game system and only one bad
part is preventing it from functioning. I can get it to work with a
rigged up replacement but cant re-assemble until I replace the part.
What I am looking for and have been having trouble finding is best