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Electronics Repair Discussions about repairing electronic devices (as opposed to the common habit of throwing them out)
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There are 164566 individual articles here that are part of 20988 discussions
Please see below the list of the most recent and the best rated articles in Electronics Repair

The most recent discussions

Repairing VACTECs

March 29, 2020, 1:27 am

Hi, linear opto-isolators called VACTECs are common in instrument amplifiers and other items like pedals. Many versions exist and are not so easy to buy nor cheap. IME the most common failure is o... Read more »

New solar panel on nerdiest gadget of all time

March 27, 2020, 9:56 pm

About 25 years ago I bought a baseballs hat with a solar panel on the top w hich drove a fan motor. It looked terrible and never moved enough air onto the user's forehead to actually do anything. ... Read more »

HP Laserjet 3800n paper feeding problems

March 26, 2020, 12:56 pm

Good morning When I print a page my HP Laserjet 3800n often picks two or more paper sheets from the tray. I have been googling for this problem but I could not find the magic words to get a vali... Read more »

OT: Covid-19 personal protection ideas, and related

March 17, 2020, 11:57 am

Consulting a couple of medics about this, they seem to be as much in the dark about this and just use what they are given. With no hand-sanitizing gel available anywhere, use methylated spirits ... Read more »

PAL/NTSC - chroma phase vs. colour documentation

March 16, 2020, 6:55 pm

Hi group! I am looking for documentation that would clearly say what colour is expected at which phase difference between the reference phase (colour burst) and the actual signal subcarrier phase... Read more »

Excessive motor current draw question

March 13, 2020, 10:07 pm

I have a Tiawanese manual lathe with a 3 phase 3hp motor. I run my shop on a phase converter. I have a CNC lathe with a 15hp spindle and a CNC mill with a 10hp spindle. Other machines too but it's ... Read more »

I want to improve my front door lock

March 9, 2020, 4:14 pm

Has anyone ever used this or do you know about it? https://www.amazon.com/MiLocks-WF-02SN-Digital-Deadbolt-Exterior/dp/B01J8UI2YI/ref=sr_1_27 Remote control, like a car. Were you pleased? When ... Read more »

How to replace bad CPU on circuit board?

March 5, 2020, 1:31 am

At my workplace, I'm often faced with circuit boards which WOULD be repairable, if not for the fact that the CPU on the board is fried. (These CPUs are not like the CPUs in PCs; they're 15mm-square... Read more »

peterwieck Has Peter Wieck ever added any technical value to any thread on ...

March 3, 2020, 8:09 pm

Has Peter Wieck ever added any technical value to any thread on this newsgroup in his entire life? o pfjw@aol.com If so, please post a link to a thread he opened of on-topic added value: o ? o... Read more »

organizing the "ratsnest", Target 3001?

March 3, 2020, 6:48 pm

Since I last posted, I was able to finish circuit board layout in Target 3001 and now have a schematic, but it's all a ratsnest of criss crossing wires. I can pull components to other places, bu... Read more »

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The best rated discussions


My network used to work.

My network is set up like this: Charter cable modem -> my Netgear cable modem used as a wireless router -> Airlink secondary router used as a secondary wireless access point. Things were so easy ... Read more »


Learning Electrical Repair

  [ 2 ]

I don't want to pick up another career or spend 20 years learning electrical repair, but I would like to learn something about this area. I don't care for ham radios or tv repair either. But barring ... Read more »


Sony PS-LX510

Is there anyone who might be familar w/ this turntable? Problem w/ sticking linear tracking tonearm. I cleaned the dust & dirt off the rail but may need to lube it. What do I use? Also, a source ne... Read more »


Are faulty APC UPS's easy repairs or is it throw in the trash?

Hi, I have two faulty APC BackUPS CS500's each with a different fault. The first unit will switch to battery when there is a power cut. However, when the power is restored, it will not switch back t... Read more »


Fluke 87 LCD

This is a straightforward question. I don't want it to become a megillah or a tsimmes. My 20-year-old Fluke 87 has one or two segments and several enunciators that have dimmed. I assume this is due ... Read more »


Source for non polar caps

Need a source for some non polar electro caps. Tried all the usual suspects. values 6.5 uF 25v and 3.3 uF 25v TIA Red Read more »


Identifying Scrap Metal in old VCR's

Every spring, as I do my cleaning, I take the time to strip the metal from all the old appliances I discard. I remove the aluminum parts and strip anything that may be attached to them. The recyc... Read more »


How do USB players keep track of position.

The devices that plug into the cigarette lighter and play sound from a USB drive through car radio speakers have the ability to remember where they left off, and, even when power is removed from th... Read more »


Allen and Heath PA CP power amp

  [ 2 ]

Hi, I'm a bit puzzled by this blown power amp, as the design of these things is not really my forte. (I have posted the schematic over on alt.binaries.schematics.electronic) The problem is around th... Read more »


black and decker coffee pot wiring diagram

I have a Black and Decker coffee maker model # CM1050B type 2. I need the value of the #1 resistor on the control board #HET-BST CM1050-P. Resistor is burned and cracked. It looks like a one watt c... Read more »