Problem

This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....

TV Model: Hitachi 40HYC42
Power Supply: 17IPS71
MainBoard: 17MB95M
Panel: VES400UNDS-2D-NO3

When the set came in it was dead. Fuse was open primary side and the power mosfet was shorted. So I ordered a new power supply. Now it turns on, only displays "Hitachi" and then power off red and blue led flashing.

I had to modify the 0ohm resistors in the led backlight of the new PS like the original power supply.
Is there any variants on 17IPS71 power supply's?

UART output pins 10 and 12 on scart connector:

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Hello everyone!

Please help me determine which microcontroller was in this place.
Logically, I guess that this is a ddr4 PWM memory controller and some kind of Richtek, but which one?
Thise motherboard came after another service, where they say that water got on the controller and it burned down and they dismantled it.
They did not take photos before the intervention

The DANJLFMBAB0 REV B board, schematics, boards and photos of the motherboard were not found on the network, but I may have searched badly-((
Maybe someone has a photo of this piece,...

I'm trying to flash an HP Probook 450 G5 (2XY63EA) BIOS using Arduino.
It's the first time I try this procedure so maybe I'm missing something stupid.

I've been able to unsolder bios chip (Winbond W25Q128JV) and wire it up to Arduino.
I also dumped it succesfully (dump.bin).

Now I'm having a hard time trying to reflash it, because the bios file I downloaded from HP has the wrong size.

I downloaded bios from HP (https://ftp.hp.com/pub/softpaq/sp103...0/sp103710.exe).

When launched, the executable extracts a file (Q...

My question has to do with through-hole Electrolytic Capacitor physical size and finding the correct specification in ordering a replacement.

Example: I'm working on an old video arcade monitor. The parts list calls for two (2) 6800pF, 50V Electrolytic Capacitors (ECap). Based on that specification, you can go to Mouser, DigiKey, etc and get a through-hole ECap at that spec…and get a far smaller one (physical size-wise) than what was on the board.

From my limited knowledge, I understand that size does matter in this application because of the stress that the circuit...