Electronics Repair

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Yamaha RX-V992 won't power on

Pressing the power button gets relay click and power LED flash (on volume control) but all shuts down immediately. Look...
10 comments posted 13yrs
posted by bespoke
10 comments posted 13yrs posted by bespoke

How do you drill through stainless steel at home?

What's the trick to drilling a hole through 1/2" thick stainless steel? From my guardrail experience, I had bought tita...
97 comments posted 13yrs
posted by danny
97 comments posted 13yrs posted by danny

Carlsbro Keyboard 150 , 15 inch combo from 1985

TO220 devices marked 40871 and 40872 and also SM are presumable RCA40871 /2 , anyone happen to know what the TO3 device...
2 comments posted 13yrs
posted by diverse
2 comments posted 13yrs posted by diverse

Ceiling light assistance

Hi and help! I have removed a ceiling light I have previously replaced but this time it's gone wrong! I can 't get it w...
4 comments posted 13yrs
posted by unbeliever1865.b7d0468
4 comments posted 13yrs posted by unbeliever1865.b7d0468

Renovating gang switches

Confronted with a huge Rotel amp from mid 1970s. Function switch, interlinked S/R ganged switch, 5 gang, each of 4 pole...
3 comments posted 13yrs
posted by diverse
3 comments posted 13yrs posted by diverse

Vizio 42" LED TV No backlight, blows fuse

Hi; This is a Vizio M420NV. Backlight was out, I found an open 3A fuse (TF1) on the main board that carries 12.4 vdc. W...
5 comments posted 13yrs
posted by wwspage
5 comments posted 13yrs posted by wwspage

Programmable stepper control help please

I posted the message below in SEB and then though that maybe it should have been posted here too. So here it is, slight...
1 comments posted 13yrs
posted by etpm
1 comments posted 13yrs posted by etpm

TV speaker amplifier

Well, last night, I finished the first draft of the amplifier for my bathroom tv speaker. Thanks for the advice earlier...
10 comments posted 13yrs
posted by NONONOmisc07
10 comments posted 13yrs posted by NONONOmisc07

Workman-like make of valve/tube sockets?

That last more than 5 years before the gap in the socket pin opens up enough to break contact on the grid pin? octal EL...
8 comments posted 13yrs
posted by diverse
8 comments posted 13yrs posted by diverse

8-pin SIL dual op amps

Hi, anyone know of a reasonably easy to obtain 8-pin SIL op-amp? Trying to replace an NJM072BL, but these are difficult/...
8 comments posted 13yrs
posted by sound.service
8 comments posted 13yrs posted by sound.service

LED lightcurtain / christmas tree lights

KAM LED lightcurtain control box dropped and now no function. DC rails are right , not yet checked crystal and 555 sub...
3 comments posted 13yrs
posted by diverse
3 comments posted 13yrs posted by diverse

Lilfe in the slow (repair) lane.

I need a rant... Is hardware becoming more complicated, users becoming more clueless, or both. I get a panic call from...
46 comments posted 13yrs
posted by jeffl
46 comments posted 13yrs posted by jeffl