Electronics Repair

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Zenith TV

Hi! This Zenith TV MDL Z50PX2D has what looks like a red curtain in front of the picture. any idea what is causing it? T...
5 comments posted 14yrs
posted by vschmitt29
5 comments posted 14yrs posted by vschmitt29

uPB8228C replacement

Hi, can't seem to even find a printable datasheet for this well obsolete device. Its an 8080A controller/bus driver, ju...
11 comments posted 14yrs
posted by sound.service
11 comments posted 14yrs posted by sound.service

Intel 2107 dram sub....anything?

I'm working on a pc of equipment that uses these 2107 rams and having nothing but problems with them. They're odd that...
3 comments posted 14yrs
posted by boardjunkie1
3 comments posted 14yrs posted by boardjunkie1

ZenithTV

Hi! If I can get some advice on this one , OK! This Zenith MDL Z50PX2D Plazma, after the screen lights up after about 1...
0 comments posted 14yrs
posted by vschmitt29
0 comments posted 14yrs posted by vschmitt29

Sanyo microwave oven EM-S1057

I have a faulty Sanyo microwave oven EM-S1057, whereby the tray rotates and= the bulb lights up but there is no heat pr...
5 comments posted 14yrs
posted by vernondopaul
5 comments posted 14yrs posted by vernondopaul

Philips DVP-3140 Servo Adjustment - Service menu?

I have a Philips DVP-3140 DVD player (similar models DVP-3142 & -3144)that = has trouble tracking discs. It will freque...
7 comments posted 14yrs
posted by michael.w.appenzeller
7 comments posted 14yrs posted by michael.w.appenzeller

Sony TV

Hi! I have a Sony MDL KDL32L4000 that has a distorted picture, which board is more likely to cause this, the backlight i...
4 comments posted 14yrs
posted by vschmitt29
4 comments posted 14yrs posted by vschmitt29

Determining number of turns of a coil?

Is there an online calculator anywhere ? or failing that what sort of "packing factor" for 0.08mm (+/- .005mm ) winding...
20 comments posted 14yrs
posted by diverse
20 comments posted 14yrs posted by diverse

EPROM over erasing

Is it possible to damage an EPROM by exposing it to UV light for too long? What if a portion of the EPROM stays unprogr...
41 comments posted 14yrs
posted by nontelo
41 comments posted 14yrs posted by nontelo

Speaker repair - frame to cone wires?

Needed for a big do in about a week so quick and dirty repair required but be better if the repairs lasted! I tried a r...
13 comments posted 14yrs
posted by charlie
13 comments posted 14yrs posted by charlie

Where to get ferrite cores

I have a couple of things in mind and I would like a source for those BIG t= oroidal ferrite cores. I can deal with pai...
7 comments posted 14yrs
posted by jurb6006
7 comments posted 14yrs posted by jurb6006

97 Aerostar running hot

OK, back to the beast again. On the road, temperature is just slightly = above mid-range, where it has always been. Whe...
11 comments posted 14yrs
posted by guvbob2003
11 comments posted 14yrs posted by guvbob2003