Electronics Repair

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Adding RGB input to Sony Trinitron

I picked up a flat face Trinitron yesterday for peanuts. I plan to use this as an arcade game monitor (in a MAME setup)...
18 comments posted 15yrs
posted by boardjunkie1
18 comments posted 15yrs posted by boardjunkie1

Slightly odd output stage configuration. Thoughts ?

A muso customer has asked me to carry out some tonal mods to his Peavey Classic 30. All pretty straightforward cap chan...
31 comments posted 15yrs
posted by arfa.daily
31 comments posted 15yrs posted by arfa.daily

What is the story with the Panasonic SA-PT760?

Is there a known problem with this unit? I have one and it is completely dead, - as if there is a fuse dead on the powe...
8 comments posted 15yrs
posted by licensedtoquill
8 comments posted 15yrs posted by licensedtoquill

Yammy PA ...

Anyone got schematics for a Yammy MS400 powered speaker ? TIA Arfa
5 comments posted 15yrs
posted by arfa.daily
5 comments posted 15yrs posted by arfa.daily

PTFE covered wire - how to strip off the PTFE?

For high temp applications. The type I have has 2 parts to the PTFE insulation. The outer strips off easily with any ol...
6 comments posted 15yrs
posted by diverse
6 comments posted 15yrs posted by diverse

Electrolytics blow after 1 hr

Another day in bad caps hell. I fish a Dell GX520 out of the pile at the local recycler and proceed to try and raise th...
37 comments posted 15yrs
posted by jeffl
37 comments posted 15yrs posted by jeffl

Unidentified connector type

Please see: http://repairfaq.cis.upenn.edu/Misc/conn-h.jpg http://repairfaq.cis.upenn.edu/Misc/conn-p.jpg These are 0.1...
2 comments posted 15yrs
posted by sam
2 comments posted 15yrs posted by sam

Pioneer PD-M610 6cd player service manual

Pioneer PD-M600 changer. Presents disc but does not spin up then the same thing happens with each disc. Anyone any clues...
8 comments posted 15yrs
posted by haggisz
8 comments posted 15yrs posted by haggisz

Supercaps and ESR

Trying to find a replacement for a 1F/2.5V supercap. Original: I can find local replacements rated 1F/5V but the ESR is...
11 comments posted 15yrs
posted by invalid
11 comments posted 15yrs posted by invalid

2 Digit LED counter design help needed

A customer is asking for a product that I am having trouble finding. I also might rather build it if I knew what was ne...
7 comments posted 15yrs
posted by hpgarbe
7 comments posted 15yrs posted by hpgarbe

Fender Blues deluxe, PR246

Or was , extensive mods by Jason Sansome 2007. Numerous problems now. PCB removed , replaced with hard wired tag board....
8 comments posted 15yrs
posted by diverse
8 comments posted 15yrs posted by diverse

marlboro guitar amp

Anyone have a schematic for this unit ? its a marlboro 1200R thanks
0 comments posted 15yrs
posted by bebop
0 comments posted 15yrs posted by bebop

RCA Commercial Chassis ITC008

We service commercial TV's and we are hitting a brick wall with this particular model. It's an RCA J27F635YX1 using the...
0 comments posted 15yrs
posted by gaianavatar1
0 comments posted 15yrs posted by gaianavatar1

Looking For Usable Multimeter - Cheap

I've got a Micronta that's getting weird on me. Thing must be 30 years old, but it always did what little I needed of i...
37 comments posted 15yrs
posted by x
37 comments posted 15yrs posted by x