Electronics Repair

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Ellusive microcontroller

I'm trying to locate the overall system controller on a video board, that handles IR remote, physical keypad functions...
6 comments posted 13yrs
posted by diverse
6 comments posted 13yrs posted by diverse

ID SMD chip - Regulator, DC converter?

Hi, trying to ID an 8-pin SMD. The circuits function is to supply 2.5v, probably to the D/A converters. It has 2 diodes...
2 comments posted 13yrs
posted by sound.service
2 comments posted 13yrs posted by sound.service

dc-dc converter

Does anyone here have any experience with dc to dc converters? I need a unit that takes approximately 48 volts input (F...
15 comments posted 13yrs
posted by pat
15 comments posted 13yrs posted by pat

Sahara DP3601 video projector,2006

Bright orange, 2 of these , minus the security necessary top control panel for each, not found a pic of them yet. 15 wa...
3 comments posted 13yrs
posted by diverse
3 comments posted 13yrs posted by diverse

Switching PSU trouble.

I'm servicing an old PC switching PSU. It's odd form factor and very small dimension prevents me to substitute the inne...
10 comments posted 13yrs
posted by john.pim
10 comments posted 13yrs posted by john.pim

moderator

Does this group have one?
5 comments posted 13yrs
posted by tjkupp
5 comments posted 13yrs posted by tjkupp

Pioneer VSX-401 receiver speaker terminals

Hello all! I have a Pioneer VSX-401 home stereo receiver from about 1991. It works, but the main speaker terminals are...
4 comments posted 13yrs
posted by mroberds
4 comments posted 13yrs posted by mroberds

Horizontal stripes on Samsung ML-1640

Hi, Yesterday, I got a laser printer Samsung ML-1640 with this problem: http://img844.imageshack.us/img844/2695/vzv.png...
4 comments posted 13yrs
posted by "albasani"
4 comments posted 13yrs posted by "albasani"

Re: C - Audio slave amp ...

> Anybody by any remote chance have a schematic copy for a C - Audio RA 1001 > slave amp ? Drawn a blank from all the u...
3 comments posted 13yrs
posted by diverse
3 comments posted 13yrs posted by diverse

Weather radios

Several of my friends have brought their new weather alert radios to me for setup and programming. They all seem to rec...
10 comments posted 13yrs
posted by dgminala4444
10 comments posted 13yrs posted by dgminala4444

Ashdown Acoustic Radiator 2, amp

It was only when I saw the IEC on the rear that I realised it was not 1960s, scuffed red mock leather covering, large t...
5 comments posted 13yrs
posted by diverse
5 comments posted 13yrs posted by diverse

Bathtub curve failure or something more?

A birthday present of a new set of valves in a 2009 PV classic 30 and after a few weeks of use , copious magic smoke an...
12 comments posted 13yrs
posted by diverse
12 comments posted 13yrs posted by diverse