Electronics Repair

Finding A Power Supply Schematic

[This followup was posted to sci.electronics.repair and a copy was sent to the cited author.] I am repairing an LCD mon...

17 comments posted 13yrs

posted by mkaras

17 comments posted 13yrs posted by mkaras

Magnavox ZV457MG9a problem

The VCR side of my Magnavox ZV457MG9a now sounds like a person snoring when it plays or records a tape, anyone else have...

8 comments posted 13yrs

posted by rose122550

8 comments posted 13yrs posted by rose122550

Alternistor = trade name for traic?

No other difference? alternistor = triac ? its just that a number of apparently unrelated companies use the term alterni...

11 comments posted 13yrs

posted by diverse

11 comments posted 13yrs posted by diverse

How can a toll-free number fail on landlines & VOIP but not on cellphones?

Telephonically, can anyone explain what is going on? http://youtu.be/JHALM-pJpBM I'm trying to call ZTE Customer Suppor...

15 comments posted 13yrs

posted by Eddie

15 comments posted 13yrs posted by Eddie

Dell - A720/A920 black ink cartridge.

Since I had a syringe of black printer ink that worked just fine on a Canon 250i, I decided to try filling the cartridg...

9 comments posted 13yrs

posted by gangprobing.alien

9 comments posted 13yrs posted by gangprobing.alien

Re: Mobile network not available

The Red Pocket (ATT reseller) SIM works fine on a "dumber" Motorola C139. So what is the cheapest plan that will work w...

1 comments posted 13yrs

posted by vjp2.at

1 comments posted 13yrs posted by vjp2.at

Digistrobe from Power Instrumnts

Looking for repair info. Like a schematic. The digitl display lights up but no strobe. Probably vintage about 1964. No...

1 comments posted 13yrs

posted by tucsonlou

1 comments posted 13yrs posted by tucsonlou

OTA broadcasts being phased out?

I have heard from sources, (perhaps not reliable ones) that there has been talk of phasing out OTA broadcasts in the Un...

23 comments posted 13yrs

posted by captainvideo462009

23 comments posted 13yrs posted by captainvideo462009

TV antenna question

My buddy doesn't have cable where he lives so I got him this antenna: http://www.amazon.com/gp/product/B004NQMCDK/ref=o...

10 comments posted 13yrs

posted by noreply

10 comments posted 13yrs posted by noreply

Can a loose connection lead to a blown mains fuse?

800 watt toroidal transformer operating at say 400 watts. Secondaries lead to conventional bridge rectifier and smoothi...

12 comments posted 13yrs

posted by diverse

12 comments posted 13yrs posted by diverse

What's next after bad caps LG W2252TQ-TF schematic?

I picked up a free LG W2252TQ-TF. lights up for a second then quits. Figgered bad caps, but I pulled and tested 'em all...

1 comments posted 13yrs

posted by ham789

1 comments posted 13yrs posted by ham789

Steepletone Edinburgh retro music centre, post 2010

Even the model name reflects the era of these being pieces of furniture. Quite a tasteful bit of cabinet with convincin...

9 comments posted 13yrs

posted by diverse

9 comments posted 13yrs posted by diverse

Soldering tinsel wire again, my method

I know this has been kicked around plenty but I just soldered a new plug onto a pair of ear buds and the method I use w...

12 comments posted 13yrs

posted by etpm

12 comments posted 13yrs posted by etpm

house wiring voltage drop

Suspected a wiring problem at a friends house where her computer and monitor fed via a UPS is connected. The UPS sounds...

10 comments posted 13yrs

posted by nobody

10 comments posted 13yrs posted by nobody

Re: Very poor electros ...

>Anyway, I started to measure them all, and every single one, in both >channels, is either high ESR or completely open....

10 comments posted 13yrs

posted by jeffl

10 comments posted 13yrs posted by jeffl