iFixit - Answers With Device "Electronics"

Home Audio Amplifier: Powersoft digimod 2000hv PSU repair

Wed, 29 Apr 2026 06:29:08 -0700

Hello. I think that PSU on my Digimod 2000hv has died. I started checking the transistors and mosfets and I figured that Q2 (12N60A4D) and another chip responsible for DC voltage are dead. Is there anything else i need to check before replacing them? I will also repalce Q1, which is the same as Q2.

Xiaomi TV 4A Bezel less 2021: The TV is showing blue & pink flickering coluor

Wed, 29 Apr 2026 02:15:20 -0700

the TV is showing blue & pink flickering coluor

BolaButty X-GO C27-C: The beep won’t turn off cannot sleep

Tue, 28 Apr 2026 20:59:22 -0700

It has been on all day and usually disconnects itself. It woke me up in the middle of the night with a random beep. Now it will not turn off. It will not reset. It won’t respond at all. I cannot sleep!!!

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 4월 28, 2026 at 18:33 GMT-7

Casio FX-991ES Plus: My calculator is not turning on

Mon, 27 Apr 2026 14:31:31 -0700

How can i fix it

⟐ Commented 4월 27, 2026 at 14:31 GMT-7

Oculus Quest: How do you replace the lens on the oculus quest?

Mon, 27 Apr 2026 07:53:05 -0700

If the lens shatters how do I replace it?

⟐ Answered 4월 27, 2026 at 7:53 GMT-7

Sony HT-CT150: Why is my step down not working

Sun, 26 Apr 2026 20:47:04 -0700

My step down is not working, but if plugged direct it comes on, but those lights are deemed

⟐ Commented 4월 26, 2026 at 20:47 GMT-7

Sennheiser Momentum 3: How do I fix/replace the ANC microphone in the left speaker?

Sun, 26 Apr 2026 06:47:23 -0700

My Sennheiser Momentum 3 gives constant static in the left speaker when the ANC is on, and it is now gives static when the ANC is off as well, just not as much. I understand that this is a common issue with this model. So do any iFixit members have guide to either repair or replace this microphone and the tools/parts needed?

iPod Touch 4th Generation: Why is screen on white?

Sun, 26 Apr 2026 06:34:31 -0700

Greetings everyone! Recently I found my old iPod Touch 4. After replacing the battery and turning it on, the screen began to light up white for 10 seconds and then go out (it happens after each press of the power button). Does anyone know what could be the problem?

⟐ Commented 4월 26, 2026 at 6:34 GMT-7

QN65Q7FAAFXZa: Video and audio errors

Sat, 25 Apr 2026 10:17:04 -0700

Different brand TVs in the entire house have audio and video errors (sometimes) as visible in the these examples:

https://jumpshare.com/s/A6qGVVngRo23Wflm...

https://jumpshare.com/s/OhOjv4DKOtCy2JNd...

Sometimes everything is ok (on different days I mean).

All TVs have this problem except for one that has it's own radio antenna. The others share a different model old antena. Just wanted to be sure that I should just buy a new antena

Meta Quest 2: My vr says no commands and wont turn on with purple light

Sat, 25 Apr 2026 10:08:44 -0700

how do i fix it or do i gotta buy a new one

⟐ Commented 4월 25, 2026 at 10:08 GMT-7

Amazon Echo Show 8 (2nd Gen): Echo show dropping signal

Sat, 25 Apr 2026 07:38:23 -0700

My echo show keeps dropping the signal for 10- 15 seconds, after playing for 2hrs, after 20-30 mins it stops completely, it sits right beside the router

Sony Walkman TPS-L2: Why is my tps-l2 Walkman playing with one ear?

Fri, 24 Apr 2026 18:54:11 -0700

I was wondering if anyone could answer this but, 2 months ago, I bought a tps-l2 Walkman and fixed the belt, it went smoothly in the at first, able to play in two ears, until the next day was when it started playing in one ear, I tried a new pair of headphones and see if it was the headphones, still played in one ear, I cleaned the jack and check again, still played in one ear, I tried several attempts but none, could anyone help me and guide me to repair the playing in one ear problem?

JBL Tune 720BT: Power button randmly got "loose" and won't turn on

Fri, 24 Apr 2026 13:56:37 -0700

One day i just wanted to listen to music and power button lost its click. I cant figure out how to fix it. It is more loose than earlier and just does absolutley nothing

Edifier W820NB Plus: Is there a Power Path Management circuit for wired usage?

Fri, 24 Apr 2026 12:31:13 -0700

I've been wanting to use the device wired to my computer, scared of accidentally costing myself new batteries because of micro-cycles.
Cannot find the circuit architecture anywhere either.
If anyone has done a deep teardown I would really appreciate the info!

Daewoo: The power button and all other buttons not working

Fri, 24 Apr 2026 00:50:54 -0700

Once it is plugged it shows the standby light but doesn't come up and all the buttons are not working

JBL Tune 720BT: How do I get to the hinge?

Thu, 23 Apr 2026 10:56:35 -0700

hi!
to avoid buying another headset while this one still works, i'd like to know how to reach the right cup hinge, as it is only connected by the wire currently. replacing the pleather cover would also be good as it has begun to come loose from the cups.

thought i'd ask here to avoid ruining them !

thank you in advance !!

Daewoo: مفتاح التشغيل لا يعمل

Thu, 23 Apr 2026 05:42:18 -0700

زرار الفتح معلق مش راضى يشتغل بدوس عليه كذا مرة عشان يفتح

JBL T450BT: Then right earcup problem

Thu, 23 Apr 2026 00:28:50 -0700

The right earcup isnit functioning and is no more semi pivoted, it's now freely rotating

PlayStation VR: What is the pin layout for the white cable

Wed, 22 Apr 2026 13:48:11 -0700

i wanna mod it and figure why the vr headset need the processor unit