iFixit - Active Questions With Device "Electronics"

Philips Television: LED started to blink twice, after Power off/on LED stays off

Thu, 30 Apr 2026 01:38:40 -0700

Hi All,

after 13 years the LED of my beloved Philips TV 55PFL7108K/12 suddenly started to blink twice.

Then i couldn't turn it on anymore, therefore i re-plugged the power cable. Since then it doesn't even blink anymore at all. Only when i plug in the power cable the LED lits up for some milliseconds and then everything stays off.

Any idea what this could be? I am willing to open the TV, but for now i wanted to ask here for ssuport.

Thanks a lot in advance.

Br Dino

⟐ Commented April 30, 2026 at 1:38 MST

Beats Studio 3: My head phones won’t link to my phone via blue tooth.

Wed, 29 Apr 2026 22:18:54 -0700

My head phones won’t link to my phone and when I use the adapter cord they won’t produce sound that way either.

Altec Lansing Speaker: I need a guide for a hydroshock charging port repair

Wed, 29 Apr 2026 17:12:43 -0700

Altec lansing hydrashock charging port repair

Meta Quest 2: Why does my meta quest show boot screen but then go to blank screen

Wed, 29 Apr 2026 17:05:12 -0700

So when I turn on my headset it shows a booting screen (the one with the meta logo) and then it spins around 8-12 times and then it goes to a grey screen. I’ve tried side-loading updates and everything in the menu that you get to with vol down and power. Nothings working.

TI-84 Plus Silver Edition: What do I do if my calculator screen is cracked?

Wed, 29 Apr 2026 13:12:09 -0700

my screen has cracked and I'm not sure how to fix it or if it needs repair.

⟐ Commented April 29, 2026 at 13:12 MST

Blu-Ray Player: Sony UBP X800 - Won't power on

Wed, 29 Apr 2026 12:46:49 -0700

Hi,

I’ve been trying to fix this device for some time and got some very helpful comments on another platform but that’s dried up so hoping I can get some pointers re where to go next :)

TLTR - I’ve pretty much eliminated the power module as the source of the problem as power seems to be leaving the board via 2 power cables to the mainboard.

I’m sure now its something on the motherboard but not sure what to check. Long shot I know, but if anyone has some ideas I can try, that would be greatly appreciated.

Thanks

⟐ Commented April 29, 2026 at 12:46 MST

UE Wonderboom: Speaker turning itself off

Wed, 29 Apr 2026 11:04:52 -0700

I just got a new UE wonderboom speaker off of Amazon, fully charged it, and now when I try to play music through it it will turn itself off after playing for a few seconds. I’ve tried a default reset and removing the device from my phone, any ideas on what to do?

⟐ Commented April 29, 2026 at 11:04 MST

Samsung Television: Tv de 65" prende pero no da imagen y si logre ver algo con flashlight

Wed, 29 Apr 2026 09:03:10 -0700

Sera los led backlights dañados?

Home Audio Amplifier: Powersoft digimod 2000hv PSU repair

Wed, 29 Apr 2026 08:16:31 -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.

⟐ Commented April 29, 2026 at 8:16 MST

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!!!

JBL Speaker: Partybox 200 won't turn on anymore

Tue, 28 Apr 2026 19:30:48 -0700

Hello,

I have had the JBL Partybox for over a year now and suddenly after pretty light use, it just stopped turning on.

The Power light illuminates orange so i know its getting power, I have opened it up and made sure all the ribbon cables and connectors were snug. I also have re-flowed and measured the power switch on the circuit board just to make sure it’s not the switch.

I can’t test any sort of power or connection since I can’t turn it on unfortunately.

I can’t seem to find anyone having the same issues as me so I am hoping I can find some help on here! Thank you in advance.

⟐ Commented April 28, 2026 at 19:30 MST

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 April 28, 2026 at 18:33 MST

samsung UN55RU7300FXZA 55 inches 4k uhd: Tv will not turn on

Tue, 28 Apr 2026 15:39:11 -0700

There is no red light on the tv when plugged in. I push power button and the tv does not turn on

⟐ Answered April 28, 2026 at 15:39 MST

Samsung Television: Ribbon cable causing issue

Tue, 28 Apr 2026 14:19:35 -0700

Hi, so my Samsung tv’s auto timer turned the tv off and the tv would not come back on at all. I have taken off the back of the tv and checked the power, main and t-con boards and all appear to be ok however tv is stuck in a boot loop unless I remove the ribbon cable from the main board to t-con board then the boot loop doesn’t commence the tv turns on as normal. Now for the confusing part…when I disconnect the ribbon cable, let the tv start up and finally reconnect the ribbon cable the tv works perfectly however once turned off the boot loop starts again until the steps are repeated. I have seen “fixes” on YouTube etc for a similar issue which uses electrical tape to cover 1 or 2 receivers on the t-con board this usually isolates a spot of led’s and leaves a visual defect on the screen. This doesn’t seem Like the correct fix for my TV’s issue as the entire screen works flawlessly when I have removed the ribbon cable and inserted it again. Is there any known fix for this or a way to stop the t-con sending the signal to turn the tv off? Thanks.

⟐ Commented April 28, 2026 at 14:19 MST

Turtle Beach - Stealth Pro: My microphone stopped working

Tue, 28 Apr 2026 10:21:31 -0700

The issue is the microphone stops working. Prior to it stopping, it would work at half-mast. It is a design flaw. Apparently, the wires that connect to the microphone come loose. It is caused by moving the microphone boom up and down. I can't find anything on how to break it down to access the wiring. Any help is greatly appreciated.

⟐ Commented April 28, 2026 at 10:21 MST

iPod Touch 5th Generation: Can I swap an iPod touch 6's casing on a touch 5?

Tue, 28 Apr 2026 05:07:09 -0700

After cutting my hand open trying to take the "iPod loop" off my old casing(my replacement that I bought in China didn't come with one somehow) I now decided I hate that thing and was just wondering whether I can just slap an iPod touch 6's casing on a touch 5 and call it a day. I saw the teardown and repair videos of both devices and it seems to me the only significant difference is the prescence of the pointless "iPod loop" on the touch 5.

Can anyone confirm whether I can swap the casing between them? thanks in advance

⟐ Commented April 28, 2026 at 5:07 MST

Vizio Television: will not turn after hearing a slight pop sound

Mon, 27 Apr 2026 17:57:30 -0700

My 75in Vizio TV will not turn after hearing a slight pop sound. Why?

⟐ Answer edited April 27, 2026 at 17:57 MST

Vizio Television: Loud pop then no power

Mon, 27 Apr 2026 16:22:48 -0700

Heard a loud popping sound and unit went blank no picture no sound. Tried turning unit back on but no power. Checked outlet breaker and verified power to the unit however does not power up.

⟐ Answered April 27, 2026 at 16:22 MST

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

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

How can i fix it

⟐ Commented April 27, 2026 at 14:31 MST