iFixit - Answers With Device "Miscellaneous Electronics"

Miscellaneous Electronics: Repair ultrasonic jewelry cleaner that just quit working

Tue, 28 Apr 2026 18:33:27 -0700

I have an old international silver company ultrasonic jewelry cleaner. I left on a little too long and it quit working. It's got a small simple copper motor with wires to an on/off switch and plug in and that's basically it with motor being a attached to flat metal piece. Nothing looks like like it was fried or burned out.

⟐ Edited 4月 28, 2026 at 18:33 GMT-7

Tape Recorder: Why does the tape recorder make such a sound?

Mon, 20 Apr 2026 08:15:51 -0700

⟐ Edited 4月 20, 2026 at 8:15 GMT-7

Livescribe Echo digital pen: Can I fix the readout screen light on my Livescribe Echo?

Mon, 23 Mar 2026 19:07:30 -0700

The light gradually faded and now it is essentially nonexistant. I love the pen, but this is my second one and both have have malfunctioned.

⟐ Commented 3月 23, 2026 at 19:07 GMT-7

Wire: iec c14 plug - Needs replacing

Tue, 17 Feb 2026 02:08:17 -0700

Hi all

I need to replace the “iec c14 plug“ of my peavey speakers:

I have bought a new iec c14 plug but since I have not replaced this before so I was wondering if you give me some advice.

How do I detach it. Will is pop open if I pull?
How so I install the new one. Solder and tape?

If there are any instructional videos that would be great.

Many thanks

Usama Ahmed

⟐ Answered 2月 17, 2026 at 2:08 GMT-7

Laser Pointer: My green laser is broken and doesn't work how to fix it?

Mon, 16 Feb 2026 13:42:59 -0700

I've searched the internet for repairing my green laser pointer but i only found this article which isn't in English someone please can help me?

This is the original article :

https://greenlaser.ir/blog/%D8%A2%D9%85%...

⟐ Answered 2月 16, 2026 at 13:42 GMT-7

SPOT X SPOTXB: How do I get a spot x power button repaired?

Tue, 03 Feb 2026 10:02:42 -0700

Who can repair these?

⟐ Edited by author 2月 03, 2026 at 10:02 GMT-7

Panasonic RQ-2102: Volume struggle and jack replacement.

Wed, 14 Jan 2026 05:11:41 -0700

Hi, I just bought it second-hand. When I adjust the volume, make noises very uncomfortable. Is there any way I can sort it out?

Also, how can I replace the jack to plug headphones?

Grundig TK125: Manual for this device

Thu, 01 Jan 2026 14:11:18 -0700

Does anyone have operating instructions for this tape deck

⟐ Answered 1月 01, 2026 at 14:11 GMT-7

Miscellaneous Electronics: Damaged video surveillance system electronic board

Sat, 27 Dec 2025 23:02:54 -0700

I have this card that the technician replaced because it wasn't working. I want to test it using a multimeter (tester) and maybe try to repair it.

Update:

1) I checked continuity between +VCC and the first DD1 pin: it sounds;

2) I checked in diode mode between the two DD1 pins: I read 0.739;

3) capacitor resistance (ohms): 11.39;

⟐ Edited 12月 27, 2025 at 23:02 GMT-7

Panasonic RQ-2102: MB-3A circuit wire configuration

Tue, 23 Dec 2025 02:27:30 -0700

my wires disconnected and i’m not sure where to solder them on

my mistake, mines a national rq 2120 it was made in singapore so the asian market. i cant find anything on these man

⟐ Edited by author 12月 23, 2025 at 2:27 GMT-7

i25 Rii mini: جهاز لايعمل إلافي زر إطفاءأوإشعال في تلفزيون

Sun, 21 Dec 2025 01:56:59 -0700

زرإطفاء تلفزيون

كل أزرار لا تعمل إلا زرواحدوهو

Miscellaneous Electronics: How do I fix the light in my blow mode Santa?

Sun, 07 Dec 2025 04:16:45 -0700

I have an old blow mode Santa that belonged to my grandparents. The light doesn’t work any more. How do I fix it?

Miscellaneous Electronics: Milwaukee Tool Battery charger kaput

Thu, 04 Dec 2025 10:42:49 -0700

Does anyone have schematic or info on fixing a Milwaukee Power Plus universal tool battery charger 9.6-18 volt? Model (cat no) is 48-59-0245. Any version of 48-59 will help. I’d rather fix it then go E-baying else I update! Two views, same board. Fuse is good, no caps are expanded.

BTW, I have two of em shot. The company is classic mute on the subject.

⟐ Answered 12月 04, 2025 at 10:42 GMT-7

Ember Mug: How to change the battery in an Ember Mug

Tue, 11 Nov 2025 12:59:33 -0700

Ember’s (ember.com) original 10oz. mug is awesome! When I first got it it kept my drink hot for so long.

Now, a few years later, the battery dies after just 10–20 minutes. Unfortunately, the company does not offer a battery replacement service for the built-in rechargeable battery.

Has anyone successfully replaced the battery in an Ember mug? How did you do it? Where did you get a replacement from?

⟐ Commented 11月 11, 2025 at 12:59 GMT-7

Portable battery: Which is bad, battery or charger

Thu, 06 Nov 2025 01:16:35 -0700

My "greenworks pro" 60 volt lithium battery is not taking a charge, but I I don't know if I need a new battery, or a new charger. Do you know any way to determine this?

⟐ Commented 11月 06, 2025 at 1:16 GMT-7

whisker cat cube: It beeps 3 times and it has a blue screen and it’s not ment to beep

Thu, 23 Oct 2025 00:16:22 -0700

Yeah it’s beeped 3 times and went to a blue screen and it is not ment to beep at all is it busted

⟐ Commented 10月 23, 2025 at 0:16 GMT-7

Miscellaneous Electronics: How to adjust a Franz LM-4 Electric Metronome?

Sun, 12 Oct 2025 13:58:26 -0700

I have a Franz LM-4 electric Metronome. I don't think the company repairs them anymore. Yes, there was something wrong, since my wife couldn't adjust the beats per second. I opened it up and found that the center screw needed to be tightened to the adjustment shaft - BUT at what position of the shaft?

While I had it open, the copper strip with an ~90 degree bend in it got loose and fell out. Don't know what it does or where it should be inside.

There are 2 metal screws that are probably supposed to be used for speed adjustment, but there must be some procedure to follow & I don't know what it is. Any help out there? Any former Franz technicians able to help?

Thanks, George

⟐ Commented 10月 12, 2025 at 13:58 GMT-7

Miscellaneous Electronics: any trick to unsolder capacitors and other components from older board

Sun, 21 Sep 2025 10:19:51 -0700

Capacitors tend to be a very common component that fail. i have several old boards of various devices that have lots of them, but my solder iron with temp variable cant seem to soften and melt the solder adequately. in some of my efforts, the component got damaged by the heat and the solder was intact.

Is there a trick ? or old components are really difficult to salvage?

Thank you, André

⟐ Commented 9月 21, 2025 at 10:19 GMT-7

Marco UP Series Electric Pump: Can UP3/E function on slow speed with SCS?

Tue, 09 Sep 2025 13:29:40 -0700

I have installed a Speed Control System together with my UP3/E pump. Normal speed, pump is working perfect. When I select slow speed, the pump is pumping slowly for a while until it stops completely and it will not pump again until I press reset button. LED is steady red as from the moment I select low speed. When pumping the red and blue led blinks alternatively. When I select the high speed again, the pump is working perfect again. My question: Does someone recognize what I wrote down? Is the SCS compatible with the UP3/E or is it maybe not?

⟐ Commented 9月 09, 2025 at 13:29 GMT-7

Miscellaneous Electronics: Graphics card uses too much power and fan doesn't spin.

Tue, 12 Aug 2025 19:46:47 -0700

I bought this card on ebay. Seller has no return policy. I knew the risks, so I'm not crying foul. I wanted a low profile, single-slot card that's well supported under Linux, for use in server. This fit the bill, perfectly.

I asked two GPU repair services and was declined by both, as they consider the card too old and cheap. I still think the problem might be something fairly basic that perhaps even I could fix. Seems worth a shot, as I have nothing to lose at this point.

Model: PowerColor RX 550 4 GB Low Profile

This exact one: https://www.powercolor.com/product-detai...

Symptoms:

Card seems to work properly, producing clean signal on both outputs.
Meanwhile, fan is not spinning. Even when running 3D benchmark, fan does not spin. Pushed fan with finger, still doesn't start, although I felt no mechanical resistance.
Benchmarks run much too slowly, compared to other cards of the same model, even when cooled by another fan and temps are in the reasonable range. The GPU seems to know its power budget is nearly exhausted, hence shader clocks never ramp up.
Software reporting claims high idle power: 32 Watts with both display outputs connected @ 60 Hz. The max power for this card is only 50 W.
After disconnecting fan, idle power drops to 25 Watts. Still way too high. Disconnecting second output drops idle power to 16 - 18 W. Other RX 550 have an idle power of 4 W, and that's with the fan running!

No visible signs of damage, scorch marks, melted components, or missing chips. Card appears pristine. No dust, even after removing shroud.

How the card is reporting power usage makes me wonder if it might be some defective or failed component in the card's VRM. The base power started way too high and each time I reduced the electrical load (i.e. disconnecting fan, disconnecting second monitor output), the reported power usage dropped by an amount that was similarly too large.

Is there any reference I could follow to narrow down any failed discrete component? I have a 15-year-old CPU/motherboard and out-of-service PSU I can use on the test bench, which I don't mind losing, if I accidentally short something while trouble-shooting. As for repair equipment, I pretty much only have a multimeter and soldering iron. Took an intro to electronics class at a community college, many years ago.

⟐ Commented 8月 12, 2025 at 19:46 GMT-7