Electronics Repair

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Testing circuit breakers with a welder

I've been given a collection of residential service panel breakers and would like to check them to see if they trip cor...
10 comments posted 3yrs
posted by bp
10 comments posted 3yrs posted by bp

Service manual Radio Shack Pro-29 scanner 20-509

I'm looking for a service manual or schematic for a Radio Shack Pro-29 scanner model 20-509 scanner. I have searched al...
0 comments posted 3yrs
posted by tgs901
0 comments posted 3yrs posted by tgs901

microphone-free!!

This one and other wifi radios listed as microphone-free!! Apparenly the fear that your new radio will be listening to...
7 comments posted 3yrs
posted by NONONOmisc07
7 comments posted 3yrs posted by NONONOmisc07

Where is the problem likely to be?

All my tv's run off a central location, which used to include cable but now has a DVDR with an amplified antenna that b...
7 comments posted 3yrs
posted by NONONOmisc07
7 comments posted 3yrs posted by NONONOmisc07

Chip ID

Hi all, Anyone seen one of these before? The IC itself has four bjts on a single die according to the schematic, but -...
12 comments posted 3yrs
posted by cd
12 comments posted 3yrs posted by cd

cd reader dead ?

the screen of the CD player have a bright light but not function. I changed all the push buttons, nothing and nothing! t...
6 comments posted 3yrs
posted by danolive456
6 comments posted 3yrs posted by danolive456

kill switch

What is a kill switch? A kill switch in an IT context is a mechanism used to shut down or disable a device or program....
5 comments posted 3yrs
posted by bruce2bowser
5 comments posted 3yrs posted by bruce2bowser

V7 L27ADS-2E LCD monitor repair - dead

The video/control board in this LCD monitor seems dead. It has a TSUM088CDT9-7 video processor and does not react to an...
3 comments posted 3yrs
posted by JERONI.PAUL
3 comments posted 3yrs posted by JERONI.PAUL

Mechanical paper shredder sensor

This crappy paper shredder uses a mechanical sensor to detect paper inserted, I think how it "works" is the lever arm r...
2 comments posted 3yrs
posted by user
2 comments posted 3yrs posted by user

heavy duty 2sided cardstock printer

The usual HP toner printers that did to sided printing ca 2009 usually smudged the toner if you did two sided printing...
1 comments posted 3yrs
posted by vjp2.at
1 comments posted 3yrs posted by vjp2.at

Battery Less Smoke Detectors

Twenty years ago Maintenance Wharehouse used to sell smoke detecotres that hard wired to 110VAC, no batteries. How do y...
10 comments posted 3yrs
posted by vjp2.at
10 comments posted 3yrs posted by vjp2.at

no-image iptv

You can turn image off on some browsers to save mobile data. IPTV costs 200mb/hr but internet radio is 1mb/hr, since I...
1 comments posted 3yrs
posted by vjp2.at
1 comments posted 3yrs posted by vjp2.at

phone charger prongs

Many times they are too straight and don't fit snugly in the outlet. You can be plugeed in for hours with no results. O...
4 comments posted 3yrs
posted by vjp2.at
4 comments posted 3yrs posted by vjp2.at