sci.electronics.repair Google Group

Re: Panasonic VCR (NV-FJ620), heads dirty/plays fast?

2009-11-07T10:09:13Z

check the highland electrix fault database.

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The car radio won't get AM unless one touches the antenna!

2009-11-07T06:17:25Z

The car radio won't get AM unless one touches the antenna!
An internet acquaintance who still doesn't understand Usenet bought a
new radio for his Chrysler LeBaron, but AM reception was verrrrry low
volume, so as to be unusable. FM is fine.
He took it back to BestBuy and in the process of working on it, the

Re: Saif Durbar: Conducting Housing Experiments in Saudi Arabia!

2009-11-07T03:48:47Z

Bovine Lend-Lease? I didn't think they were into doing it with
cattle in Saudi! I'm pretty sure that's a capital offense there.
Dennis

Re: Panasonic VCR (NV-FJ620), heads dirty/plays fast?

2009-11-07T03:32:53Z

Hi John - the e-mail you list in here didn't seem to work (I took out
the 'antispam" word part) - would you mind please e-mailing me your
email address to mine, andrew.heynREM...@gmail.com (without the REMOVE
word in it).
Thanks!
Andrew

Re: Panasonic VCR (NV-FJ620), heads dirty/plays fast?

2009-11-07T02:48:08Z

On Nov 3, 8:08 am, "John Ferrier" <johnantispamferr...@ntlworld. com>
wrote:
Hi John,
Thanks so much, this was exactly the problem. I've tried to fix the
underlying problem though and have really been stumped - I hope you
don't mind me emailing you with details to please see if you might
recognise the issue (using your email on this minus the anti spam word

Re: Samsung model HL84676S

2009-11-07T01:50:42Z

Here is some info from a co-worker:
"On this set, you get lucky. Very lucky. Not only is the DLP chip available
seperately, it can be replaced without disturbing the "tilt" adjustment.
Here's how.
Once you have the innards of the set naked, disconnect the cables going to
the mainboard and power supply. These will be the computer style connector

Re: Adding a 6v boost to a 12v battery charger

2009-11-06T23:23:26Z

On Fri, 6 Nov 2009 10:22:31 -0800 (PST), Too_Many_Tools
---
Of course not, since it's not the same charger.
I suggest you take the covers off your charger, take some pictures of
its guts, post them somewhere and give us a link to them.
alt.binaries.schematics.electr onic is a good place.
Did you ever call Schumacher (toll-free, BTW) for help?

Re: Antenna problem

2009-11-06T21:58:41Z

On Fri, 06 Nov 2009 16:06:11 GMT, zekfr...@zekfrivolous.com (GregS)
wrote:
Having the driven element inline or close to a conducting mast is
done all the time. It has negligible effect on the performance
of the antenna.
If the OP insists on a non conducting mast because he is concerned
with de tuning then he should also be concerned with the coax routed

Re: Adding a 6v boost to a 12v battery charger

2009-11-06T21:31:44Z

[link]
Difficult to see but it looks to have a multiple tapped primary. It
also looks to have dual parallelled secondaries going into the

Re: How long does a resistor last?

2009-11-06T21:23:04Z

Proven! I was using some 100 Ohm resistors to limit current in a
spark-gap ignitor for mercury short-arc lamps. The film resistor just
BLEW off its resistance film on the first shot. I mumbled "oh yeah, I
KNEW it was going to do that" and replaced with a bulk carbon resistor,
and that held up for the life of the unit. You can guess, the pulse

Re: TV's EHT wants to jump

2009-11-06T20:50:21Z

The 1000;1 probe can be checked on a known OK voltage before you use
it on the ??able tv set. If the high voltage - what we call it on the
western side of the big pond - were too high, it would accelerate the
electron beam too fast and the picture would be reduced in size, the
opposite effect of "blooming" when the high voltage is too low.

Re: Antenna problem

2009-11-06T20:46:22Z

What frequency are you using?

Re: Adding a 6v boost to a 12v battery charger

2009-11-06T18:22:31Z

Okay...I found a schematic of a similar charger that Sears sells....
[link]
Does this help?
TMT