Electronics Repair

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NAD 140 schematic please

Hello all, I'm in need of a schematic for a NAD 140 receiver. This is a very early NAD, likely around 1975, before they...
0 comments posted 16yrs
posted by tim
0 comments posted 16yrs posted by tim

MicroGem DTV converter gets pretty hot

I just bought a used MicroGem DTV converter at an auction. The price was right, and it works ok. But I noticed that it...
3 comments posted 16yrs
posted by franksmith
3 comments posted 16yrs posted by franksmith

How do I check the output of an amp with a scope?

Hello' I have built a mic amp and wanted to check the wave form on a scope but when I connect the probes to the o/p of...
13 comments posted 16yrs
posted by fynnashba
13 comments posted 16yrs posted by fynnashba

GM keyless entry

My GM keyless entry pad is intermittant. Cleaning dosen't seem to help. Anyone seen a schematic for these things? Thanks...
2 comments posted 16yrs
posted by CNorisez
2 comments posted 16yrs posted by CNorisez

How to network a usb modem for 3 computers

Hi everyone I have a USB internet MODEM and I want to connect it to my 3 other PCs at home so they can all browse. The...
4 comments posted 16yrs
posted by fynnashba
4 comments posted 16yrs posted by fynnashba

Danger of running hot receiver (Kyocera)?

Got someone with a Kyocera receiver (R-851, 85 w/chan.) that they say "smells like something's burning". Don't have mor...
18 comments posted 16yrs
posted by nobody
18 comments posted 16yrs posted by nobody

So, who's the king of finding data sheets ... ?

I have a JVC hifi on my bench. Brand new, purchased by a British soldier from a base somewhere else - possibly an Ameri...
12 comments posted 16yrs
posted by arfa.daily
12 comments posted 16yrs posted by arfa.daily

continuous action solder sucker

I'm attempting to fabricate a continuous action solder sucker along the lines of those used at work when repairing circ...
9 comments posted 16yrs
posted by rush14
9 comments posted 16yrs posted by rush14

electric fence , force field B20, 2007

8 pin SMD with blown hole in the casing. Top mark , very indistinct maybe 2 lines 0h963 0h37 maybe very stylised 4 inst...
4 comments posted 16yrs
posted by diverse
4 comments posted 16yrs posted by diverse

Orange Rocker 30, combo, 2006

All valve. Intermitant cutting out. Incidentally are the solder pads gold plated before soldering ? No mention of PbF b...
23 comments posted 16yrs
posted by diverse
23 comments posted 16yrs posted by diverse

What on earth is a "Class 1 LED Product" ??

Today, I had occasion to look at a set top box for cable TV service. It's a HDD recorder as well, employing what seems...
15 comments posted 16yrs
posted by arfa.daily
15 comments posted 16yrs posted by arfa.daily

oops! coffee into the top of TV!

Did a bad thing to our little portableTV, a Funai, Model FT1371 EVENTS: Set coffee cup on top of TV, jostled the TV's t...
3 comments posted 16yrs
posted by macy
3 comments posted 16yrs posted by macy

Fire ants - computer bugs

Watched a nature TV prog on swarming behavior. Apparently these ants have stowed away on planes and taken up residence...
12 comments posted 16yrs
posted by diverse
12 comments posted 16yrs posted by diverse

Fuse or fusible resistor?

Used in the battery (-) lead of a handheld scope. Schematics unpublished. Physically similar to a 1/4 W resistor, color...
22 comments posted 16yrs
posted by invalid
22 comments posted 16yrs posted by invalid