Electronics Repair

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Sharp TV menu problem

I have 46" Sharp Acquos and I cannot navigate menu more than 2 level. When I do that it auto-magically changes the chan...
0 comments posted 17yrs
posted by aartist
0 comments posted 17yrs posted by aartist

Old Grundig Radio ...

Anybody still got, by any remote chance, a schematic for a Grundig Yacht Boy model 208 that they could scan and let me...
31 comments posted 17yrs
posted by arfa.daily
31 comments posted 17yrs posted by arfa.daily

Dell P922 monitor

My Dell P922 monitor is too bright. Even at minimum brightness setting, it still shows retrace lines. Otherwise works f...
8 comments posted 17yrs
posted by noris1cr
8 comments posted 17yrs posted by noris1cr

Opto-coupler failure question (HCNR201)

Hi all, I'm using an HCNR201 opto-isolator device in a galvanically isolated linear signal transfer application. I have...
32 comments posted 17yrs
posted by spamtrap
32 comments posted 17yrs posted by spamtrap

"Beastkit"

For those in the US who used to read "Stereophile", Charles Holt has put the "Beastkit" up for auction....
0 comments posted 17yrs
posted by grizzledgeezer
0 comments posted 17yrs posted by grizzledgeezer

Fluke Scopemeter 99B MOVE Button No Left, Right OK

I have a Fluke Scopemeter 99B. The MOVE Button will not move screen to the Left, but will move it right. I removed from...
1 comments posted 17yrs
posted by davidjmessing
1 comments posted 17yrs posted by davidjmessing

ViewSonic monitor spasm

I have the model VG800 LCD and have looked for the schematic online, but have not found it yet. However, here is the pr...
2 comments posted 17yrs
posted by idea
2 comments posted 17yrs posted by idea

Panasonic CRT Picture - missing and/or shifted

This is an older (5-7 years old?) Panasonic TV (model PV-M2079) used primarily for GameCube and for the occasional vide...
2 comments posted 17yrs
posted by ifihalf2
2 comments posted 17yrs posted by ifihalf2

Ampeg SVT Pro 3

http://i273.photobucket.com/albums/jj220/meatplow1/music/IMG00434.jpg
0 comments posted 17yrs
posted by meat
0 comments posted 17yrs posted by meat

Peavey MX VTX

http://i273.photobucket.com/albums/jj220/meatplow1/music/IMG00425.jpg Driver closeup http://i273.photobucket.com/albums/...
0 comments posted 17yrs
posted by meat
0 comments posted 17yrs posted by meat

Home Made cathode current meter

Not pretty but cheap to make and accurate. http://i273.photobucket.com/albums/jj220/meatplow1/music/IMG00437.jpg
2 comments posted 17yrs
posted by meat
2 comments posted 17yrs posted by meat

Telephone hook switch noise

I have a Chinese made telephone with a hook switch that is generating a ton of noise. Disassembly revealed a DPDT switc...
4 comments posted 17yrs
posted by e_john_wilson.no.spam.
4 comments posted 17yrs posted by e_john_wilson.no.spam.

Strange tube ID

Someone threw away an old wood-cabinet radio across the street from me. Rummaging among the remains, I pulled a tube fr...
11 comments posted 17yrs
posted by nobody
11 comments posted 17yrs posted by nobody

tektronix D755 CRT problem?

Hello all, I hope this newsgroup is still alive, I see too much spam lately :( I'm repairing an old telequipment/tektro...
15 comments posted 17yrs
posted by francesco.messineo
15 comments posted 17yrs posted by francesco.messineo