Electronics Repair

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Microwave advice

OK, I see there is a long history of microwave over repair questions. But I don't seem to see a thread that has my ques...
10 comments posted 16yrs
posted by graftonfot
10 comments posted 16yrs posted by graftonfot

Pushon v screw f-connxr

Push on f-connectors are notoriously loose-fitting.. any tips on making them less so as the wire in question is hard wi...
0 comments posted 16yrs
posted by vjp2.at
0 comments posted 16yrs posted by vjp2.at

Gm auto radio swap problems

I have been trying to do something that used to be so simple but in today's world it seems has become an exercise in fu...
5 comments posted 16yrs
posted by captainvideo462009
5 comments posted 16yrs posted by captainvideo462009

Unknown SM 5-pin device.

Greetings, group. I'm trying to identify a surface mount device on some boards I'm repairing, but not having much luck....
3 comments posted 16yrs
posted by see.my.sig
3 comments posted 16yrs posted by see.my.sig

Soundcraft Spirit Folio F1 mixer ...

Anyone by any chance got any schematics for this ? I've tried all the usual freebie sources, but without luck. Couple o...
4 comments posted 16yrs
posted by arfa.daily
4 comments posted 16yrs posted by arfa.daily

Diode symbol confusion

on one schematic If a straight bar of cathode and triangle represent a signal diode Same with a small return towards th...
6 comments posted 16yrs
posted by diverse
6 comments posted 16yrs posted by diverse

PowerWare 9110 UPS schematic??

I have this UPS that had dead batteries, so I put in fresh new one's all charged up. I plugged it in and red ALARM led...
8 comments posted 16yrs
posted by jankroPOISTA
8 comments posted 16yrs posted by jankroPOISTA

Valve/tube, A/R fault

Well that is what Avo calls it, I've never come across one before. ECC83 with curious cyclic swirling breaking-surf whi...
5 comments posted 16yrs
posted by diverse
5 comments posted 16yrs posted by diverse

60/40 vs. 63/37 Solder

Why are there these two very similar solders? Is there any situation where one is better than the other? I understand t...
74 comments posted 16yrs
posted by none
74 comments posted 16yrs posted by none

Telephone wiring 101.

I moved into a new house and have new voip phone service via the local cable company. The way it's configured is the ca...
6 comments posted 16yrs
posted by farberbear.unspam
6 comments posted 16yrs posted by farberbear.unspam

Is it just me or...

So there you are, working on something that you don't have any schematics for; (in this case a Datron 1281 8.5 digit DM...
8 comments posted 16yrs
posted by none
8 comments posted 16yrs posted by none

Spectrian Amplifier

I have a Spectrian 30Watt 13cms power amplifier that only gives out 6Watts. Has anyone any service information or access...
5 comments posted 16yrs
posted by johnantispamferrier
5 comments posted 16yrs posted by johnantispamferrier

OpAmp in ZyXEL Wireless Access Point POE

Hi all. The Power-Over-Ethernet (POE) injector for a ZyXEL wireless network link has just failed. New, or replacement,...
3 comments posted 16yrs
posted by mmalone
3 comments posted 16yrs posted by mmalone