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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 164057 individual articles here that are part of 20938 discussions
Please see below the list of the most recent and the best rated articles in Electronics Repair

The most recent discussions

Neighbor having ISP speed problems.


January 22, 2020, 1:35 pm

My neighbor recently cut the cable. I helped him put up an antenna, and reconnect things in the box on the outside of the house. Antenna goes to the TV and cable goes to the Modem/router. Up un... Read more »

Does this simple HDMI device exist?


January 21, 2020, 6:46 pm

HDMI signals go from a source to a display. I need a device to go between the source and the display. This device would save the edid of the display and report that back to any source connected to... Read more »

Telephone Line, Red Wire, Ringing Voltage to Ground


January 20, 2020, 5:23 pm

Hi, I have used a Fluke DMM with a Max/Min capture feature to measure the ringing voltage, not only red to green, but also red to ground (and green to ground). To my surprise, the red ... Read more »

Help me repair a harvester keypad. (no LED lights)


January 19, 2020, 9:41 pm

Hi There. I have this weird device that is not fully working. It is a keypad used to control several tools in a harvester. It uses CAN bu s to communicate with the devices in the machine. When it ... Read more »

CRT displays


January 19, 2020, 6:18 pm

Gentlemen, Would I be correct in thinking that if you have an item of test equipment with a CRT display and it's dim and when you try to turn up the brightness it actually gets dimmer for the last... Read more »

OP-AMP Long-Term Reliability


January 18, 2020, 9:11 pm

Gentlemen, How reliable are the old 'tin-can' encapsulated op-amps from say 40 years ago? I'm talking about the ones that look like large transistors and have typically 8 leads in the TO5-8 packag... Read more »

what's a quick way to verify UVC from germicidal lamp?

  [ 2 ]
January 18, 2020, 9:11 pm

I've had a germicidal lamp more or less in storage for a number of years, but recently brought it out to sterilize a room where a person had been sick. However, I don't know if it still emits th... Read more »

KYORITSU FET-VOM K-200. How to set BIAS?


January 15, 2020, 9:16 pm

Hi... I have an old KYORITSU K-200 FET VOM. I would like to align it the proper w ay. I have found the DC-cal and AC-cal. And those calibration isn't that ha rd to understand. But there is a cal c... Read more »

Free (Sort of) to Good Home


January 15, 2020, 8:36 pm

Siemens Symphony Magnetom 1.5T MRI 2004 Medrad Spectris Solaris Injector 3004213 11384 Series 23449 Software NUMARIS/4 Version syngo MR A40 DHHS Software COEM VD31H Syngo Vx91C SL02P08 N4_VA4... Read more »

Refrigerator current load


January 12, 2020, 11:43 pm

I expect a large fridge to draw around 5 amps, but my clamp transformer (on one wire of a broken-out extension cord of course) and Fluke together say 830ma when the thing is running. Does that s... Read more »

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The best rated discussions

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5

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 »

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5

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 »

rating
5

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 »

rating
5

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 »

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5

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 »

rating
5

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 »

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5

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 »

rating
5

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 »

rating
5

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 »

rating
5

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 »