Electronics Repair

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Speaker overload (tweeter) protection using bulbs (repost)

This is a well established technique for preventing voice coils burning out under conditions of 'overdrive'. There is a...
130 comments posted 17yrs
posted by rabbitsfriendsandrelations
130 comments posted 17yrs posted by rabbitsfriendsandrelations

Fluorescent Sign Ballast Mystery

I am helping a friend who owns a restaurant fix the marquee sign in his front parking lot. The sign was working fine fo...
5 comments posted 17yrs
posted by chuck
5 comments posted 17yrs posted by chuck

Question on surface-mount diodes

Need to replace a SMT diode, and have no idea what to replace it with. Has the number "22" and a line indicating cathode...
2 comments posted 17yrs
posted by db5151
2 comments posted 17yrs posted by db5151

Sears (made by JVC TV) dead.

Sears (made by JVC) 32" TV Model 509.14528 Ch # A60 dead, led flashes. Standby voltages all go all over the place, whil...
0 comments posted 17yrs
posted by greeben
0 comments posted 17yrs posted by greeben

Bush DVR-3004 Locks up (DVD recorder)

I've got this dvd recorder, when you insert a disc the play logo appears and the disc spins but no picture appears on t...
5 comments posted 17yrs
posted by SPal508596
5 comments posted 17yrs posted by SPal508596

Thermostat Indicator Bulb Type?

One of the GE Weathertron Model 3AAT80B1A1 thermostats in our home is doing its thing and when the temperature setting...
9 comments posted 18yrs
posted by jwisnia
9 comments posted 18yrs posted by jwisnia

Low Volume - Panasonic Cordless Phone Handset

Does anyone know if the handset volume on a Panasonic KX-TCM937-B 900MHz "Cordless Answering System" can be adjusted? I...
4 comments posted 18yrs
posted by spamless.in.seattle.redux
4 comments posted 18yrs posted by spamless.in.seattle.redux

Toshiba 27" Tv pix too tall & not wide enough.

This is a common failure, but I can't recall the location of parts that go bad. A small zener goes bad, but which one?...
0 comments posted 18yrs
posted by greeben
0 comments posted 18yrs posted by greeben

using a TDA 8170 instead of a TDA 8177F?

these two vertical output ics seem almost identical, i think the 8170 needs a ref voltage on pin 1. can they be intercha...
5 comments posted 18yrs
posted by reverend_rogers
5 comments posted 18yrs posted by reverend_rogers

TV problems - Mitsubishi CS-31301C

Hello! We recently got a nice big TV for free (from the trash) and it has a couple problems that I would like to fix! M...
2 comments posted 18yrs
posted by neil.tuttle
2 comments posted 18yrs posted by neil.tuttle

Aiwa AD 6900 cassette decks

From 1978 , does anyone other than me repair these beasts ? Only ever perished rubber problems but what a work up to ge...
5 comments posted 18yrs
posted by diverse
5 comments posted 18yrs posted by diverse

ipaq h2210

Hello, I have two ipaq with a failure. The first one cannot recognize neither a CF card nor a SD card. I suspect the su...
1 comments posted 18yrs
posted by alpigo
1 comments posted 18yrs posted by alpigo

Saturn sunroof motor...limit switches?

The sunroof in my girlfriends 2001 Saturn SC2 broke back in Aug and I was the unlucky recipient of receiving the task o...
3 comments posted 18yrs
posted by stein.jesse
3 comments posted 18yrs posted by stein.jesse

Electrolytic caps ...

Here's a good example of what we often talk about on here with regard to electros that are normally powered all the tim...
10 comments posted 18yrs
posted by arfa.daily
10 comments posted 18yrs posted by arfa.daily