Electronics Repair

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surge suppressor

I need to build a surge suppressor to go on the input of an alarm circuit. The circuit operating voltage is 24 volts DC...
9 comments posted 18yrs
posted by captainvideo462002
9 comments posted 18yrs posted by captainvideo462002

Technics SU C2000

Expensive control amp/ preamp Scratchy motorised/sevo volume control. Anyone been here before, any pifalls opening up e...
2 comments posted 18yrs
posted by diverse
2 comments posted 18yrs posted by diverse

Nand Chip programmer

HI, Any suggest a circuit for a homebrew nand chip programmer ? thanks,
5 comments posted 18yrs
posted by f825_633
5 comments posted 18yrs posted by f825_633

32" Sony CRT TV Repair

Hello, I have a ~6 year old Sony CRT tv and recently it started giving me problems. About a month to two months ago it...
4 comments posted 18yrs
posted by jeffdwisc
4 comments posted 18yrs posted by jeffdwisc

pc

How do I get rid of ,, antivirius2009. can,t get yo my hot mail or yahoo mail. this web page come up everytime. Thanks C...
1 comments posted 18yrs
posted by cardinalcal3
1 comments posted 18yrs posted by cardinalcal3

"Silicon Power Cube"

I need a "Silicon Power Cube" which I believe is just a couple of SCR's, potted, on a heat sink. Looks like this: http:...
2 comments posted 18yrs
posted by screen
2 comments posted 18yrs posted by screen

Dead Tektronix TDS-620B

Hello folks, I retrieved a Tektronix TDS-620B digital oscilloscope from the dust-bin of my university today. The unit i...
7 comments posted 18yrs
posted by glaubitz
7 comments posted 18yrs posted by glaubitz

Toshiba 32AF41 will not power up

When turn on is attempted there is a slight hum and then the power led just continuously blinks. I have no schematic fo...
0 comments posted 18yrs
posted by captainvideo462002
0 comments posted 18yrs posted by captainvideo462002

Looking for Laserjet 3200 firmware

I am looking for a firmware module for my Laserjet 3200. In USA and Canada, HP send it for free (cause the original was...
5 comments posted 18yrs
posted by fra.gui_NS_
5 comments posted 18yrs posted by fra.gui_NS_

Flash K9F5608UOD Programmer

HI, Can anyone suggest a way to program a Samsung K9F5608UOD flash chip ? This is used on board an interet radio that h...
0 comments posted 18yrs
posted by f825_633
0 comments posted 18yrs posted by f825_633

help for smd chip on aspire mainboard

Hi, Iam looking for smd chip marked u2 on acer aspire 1310 main board because USB port 5v is out of order. On chip ther...
0 comments posted 18yrs
posted by mmacchiolini
0 comments posted 18yrs posted by mmacchiolini

Modern Electronic Education

I recently had the opportunity to install computer systems in a private school, and the only available time was during...
15 comments posted 18yrs
posted by nospam
15 comments posted 18yrs posted by nospam

Nashuatec 3413S code 55

I've been asked to look at a Nashuatec 3413S photocopier with a "code 55" error. My research suggests that this is prob...
1 comments posted 18yrs
posted by fzabkar
1 comments posted 18yrs posted by fzabkar