Electronics Forum / Repair / September 2006

This would be my first attempt at repairing a TV. The TV works just
fine except that when it is switched on, the picture runs in horizontal
lines towards the top of the screen. It takes about 1/2 hour for the
picture to settle down. And then this recurs off and on. Which part do

Has anyone had much experience using the Asti or other generic brands
of replacements for this NLA part? My distributor tells me they no
longer carry the Asti due to mechanical and electrical problems. He now
carries the "Russel" brand for 37.00 which seems very high. The Asti

How does one turn off child lock on a 20 - 27 inch philips tv set ?

I recently found a JBL Model 6810 projector in my neighborhood that was
being thrown out, so I picked it up and brought it home to see if it's
something that could be fixed.  I have a background in appliance repair, but
I have no experience working on CRTs or projectors of any ...

    The floppy drive, part # 261848-001, in my 1997 (abt.) Compaq Presario
1060 laptop is bad and there is no replacement available.  Note: I service
TVs, etc., rarely computers.   I have a floppy drive from another model Compaq
laptop, not the same part number, but it could fit in ...

Hello....
I've been reading about FLIR's that go out of calibration, and apparently
it's a production to get them recal'ed.
Does anyone have an idea what is involved, and if this is beyond the realm

I'm assembling the pieces to put an "eye in the sky" via a 2.4GHz mini-cam
in a radio control model airplane.
The 2.4GHz receiver has composite a/v RCA outputs.  The video will be going
to a camcorder (old Hi-8 with only a viewfinder) and a new mobile 5.6" LCD

needed:    HP 4261A LCR meter manual
can pay $$ or trade manual.

I have a Pioneer KEH-M6500 supertuner III cassette. The speaker wires
out of the harness are:
Green
Green/blk

hi, my t.v. set had a problem with convergence to begin with. basically i
figured out the blue color tube or whatever needs replaced which costs an
arm and a leg... so i used it mostly on my comp; however earlier when i was
watching t.v., the screen suddenly started having like ...

Is there any way possible to determine which industry numbers will
cross to a particular NTE number? I need to replace a fairly large
number of 2N6254 audio output transistors and I have access to many
2SC, 2SD and some 2N numbers etc. The 2N6254 crosses to an NTE181.

I have an old dc motor i would like to build a dc-dc converter for, but
i have no information about it other than what is printed on the
motor(24V, 2100rpm, 2.5kW). Does anyone know how i would go about
testing it to determine necessary parameters? (Voltage and torque

Hopefully i can get some help with my Neptune here.  My problem is
that i was changing the drain pump on my washer which was no problem
but when i connected it and started it i noticed a spark from a cut
orange wire which leads to the drive motor board and i saw that the

My Toyota cressida 86 is dead but the AM/FM stereo with build in
equalizer and tape player and 4 speakers is better than nothing in my
other car.  I could not figure out a lot of the wires so tried looking
through my factory service manual and a separate electrical manual for

Looking at new big screen TVs. (55-60in) I see that the rear projection
units need bulb replacement every now and then.
What is involved in replacing the bulb and which model TVs have a good
track record?