Electronics Repair

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Telonic 4053 sweep generator

Just posting a brief note to perhaps save somebody else some research effort. This weekend, at the Pacificon hamfest, I...
9 comments posted 11yrs
posted by dplatt
9 comments posted 11yrs posted by dplatt

Motor speed controller

I need to control the speed of a 1/3HP 120V AC motor. This motor/speed cont rol would go onto a wood lathe and replace...
9 comments posted 11yrs
posted by captainvideo462009
9 comments posted 11yrs posted by captainvideo462009

Dell E176FPc 17" LCD monitor.

This was a freebie with no history etc - it works, but pressing any of the setting buttons displays a padlock symbol on...
8 comments posted 11yrs
posted by gangprobing.alien
8 comments posted 11yrs posted by gangprobing.alien

OT what is it?

Hi all, I found this thing.. see pictures https://www.dropbox.com/sh/sxd1cq8qbdyali4/AAA6O9NqKQPvbX4QLzNAK-Vaa?dl=0 In...
28 comments posted 11yrs
posted by ggherold
28 comments posted 11yrs posted by ggherold

Circuit Diagram for TV CVB42001 Power Supply Board

Has anyone got, or know where I can purchase, a schematic diagram, for this TV, Power Supply Board, CVB42001. This boar...
11 comments posted 11yrs
posted by ynot4me
11 comments posted 11yrs posted by ynot4me

HP DV9000 no video, part 2.

A while ago I started this thread about an HP DV9000 laptop that had no video. https://tinyurl.com/ndtmko6 The follow u...
3 comments posted 11yrs
posted by farberbear.unspam
3 comments posted 11yrs posted by farberbear.unspam

Re: Laptop Battery Charging

> My laptop doesn't always charge the battery. I have seen it read "32 % > not charging" and similar. I have read a bit...
1 comments posted 11yrs
posted by gboot.phil
1 comments posted 11yrs posted by gboot.phil

Fender Bassman Ten, 1975

Only 1 changed resistor inside in 40 years, pretty good for twice weekly use over most of that time. Heaters glow but H...
1 comments posted 11yrs
posted by diverse
1 comments posted 11yrs posted by diverse

HDMI Inputs On TV ?

Hi, Figure that someone here would know. My TV has only 2 HDMI inputs. I have a USB hub on my PC that allows 6 USB inpu...
3 comments posted 11yrs
posted by rgsros
3 comments posted 11yrs posted by rgsros

Fender Frontman 212R Volume 80% down problem

Hello, I was wondering if you could help repair a guitar amplifier, it is a Fender Frontman 212R, schematics are here:...
40 comments posted 11yrs
posted by capossio.leonardo
40 comments posted 11yrs posted by capossio.leonardo

Mackie SR24.4

Does anyone have any experience with the Mackie SR24.4 A customer asked if I could repair one which he said had a power...
2 comments posted 11yrs
posted by invalid
2 comments posted 11yrs posted by invalid

Sony CD/Radio wont's stay turned on...

Hi - I have an old-but-very-good-condition SOny CFD-44 rado/CD/Casstte play er - been reliable for many years... Extrem...
9 comments posted 11yrs
posted by nick
9 comments posted 11yrs posted by nick

"Groovebox" with damaged TFT touchscreen

Someone has offered to sell me one of those "sampling drum machines", that usually goes for around 700 bucks new, for $...
1 comments posted 11yrs
posted by bitrex
1 comments posted 11yrs posted by bitrex