Sharp 50BL2KA PSU Repair

[@REVERSE_BIAS]

I don't suppose you've had any experience troubleshooting the T-con board from this TV have you mate? I've got the 12V VIN, 3.3V, 1.8V, 1.2V...but no HAVDD and other missing voltages....Backlight is fine, just no display/menus etc...

[@reacey]

Just done the same psu last night funnily enough, mosfet had shorted on the primary and killed a load of components

[@MrReeceyburger123]

Seems to be a bit of a junky PSU to me this one

[@odeosis]

Im looking at one right now. Has a black screen. Not even a flash. So im thibking the led driver ic is dead. But will take a look at it.

[@kmi964]

Hi i was just watching one of your vids, repairing a LG 50 ps and in your video,you mentioned that you use Tekkikid for purchasing your capacitors, unfortunately he does not seem to sell any igbt's or mosfets, could i ask if you have a recommendation, for a reputable supplier within the UK for sourcing said components, any help would be much appreciated. thanks.

[@MrReeceyburger123]

Hi sorry for slow reply, try mouser or Ali express. I’ve had pretty good luck ensure they are gain matched closely too if replacing pairs.

[@wisher21uk]

Had that a while ago it was the same caps, i may have put it on BC I can’t remember 🤪 Unlucky about the screen mate .... don’t make them how they used too

[@MrReeceyburger123]

Ahh dam no way, haha it looks like most MLCCs on the pcb are cracked, there must of been a fault with one of the machines during manufacturing or the caps when they were made 😭

[@dwehiabufreih3161]

More problems in this board power please