HI all. Just a note for anyone that has one of these TVs.
Make: Bush (China)
Model: BLED42FHDAE.
Symptoms: Half screen went dark, then tv wend dead. No power lights. Fuse checked ok.

First thing checked was standby 5v: Present @ 5.1v.
PS_ON signal from main board: Present @ 4.5v.
I suspected the power supply to be in a foldback / crowbar condition after the screen going out, so I disconnected the power to LED Backlight board (Part ER643). Now standby light is on and TV responds to remote power on - light goes green.
Disconnected the LEDs from the...

Hi all,

As the title suggests, how can I be sure that my EC chip is really dead?

I've recently gotten into this hobby of laptop repairs, and have successfully brought back to life a couple with some easy fixes, mostly shorted caps.

Now I'm working on HP Probook 455 G8, that had some "devil" run around on 3V line, burning a bunch of stuff. Luckily I have a dead 455G7 (for spare parts) so I managed to fix it (swapped burned parts) to a point that it will charge (both on barrel jack and usb-c), but it doesn't want to turn on. There is a 3V3 on a keyboard...

I have a Dell latitude 5590 of unknown history. exterior looks mint/ barely worn but it is completely dead. I am a complete novice in board repair but do have a background in small appliance repairs so not a complete noob, but close. I have done the usual things i know of o try and revive d dead laptop for example opened up the laptop, disconnected the battery, RTC battery and while unplugged form the charger shorted out the battery pins in the RTC BATT connector. and this has not changed anything.

I took out and re seated the RAM modules and no difference.
I took out my multimeter...

Hi everyone, first post here – long-time reader though. I have a dead MacBook Air M1 (2020) that won't charge or power on.

Device info:
MacBook Air (M1, 2020)
Model j313ap (A2337, logic board 820-02016)

Symptom:
No charging, no power on at all.

Restore attempts:
Apple Configurator finds the MacBook in DFU mode, as Linux with lsusb: Bus 001 Device 021: ID 05ac:1227 Apple, Inc. Mobile Device (DFU Mode).

It looks like the MacBookAir is in firmware boot loop. I have tried to restore 14.x version and 26.2 (latest) version firmware,...

hello guys,

i need help to repair a edm-033 ps2
history : as always hdmi port and usb ports destroyed after unplugged
after change them, ps5 dead too : 1 beep, no blue light. after inspection 1.8v power was shorted, and because of dead panasonic chip. after remove it : no short anymore
so i changed it
now i have got 5v stby,, 3.3v stby, 3.3v power, 1.8v power and no short on them
but the ps5 is dead again : 1 beep, near 10 seconds with power lines and then off, no blue light ...

i don't see any projection of liquid metal on pcb.
...