samsung ps42b430p

[t1412]

hi fella's has anyone repaired one of these samsungs it's a ps42b430p when to the customers house, he already took the back off, the fault it's clicking, i disconnected the xmain first still clicking, reconnected the xmain, disconnected the y main, still clicking, so disconnected both boards, no clicking now i get a slow flashing green light on the logic board the va/vs are the right volts 55/ 205, the lady said she plugged something in the usb then she heard a pop tv went off clicking strange one, could the mainboard have blown, thanks for your time


shaun       

[downunder]

Hi Shaun,

Not the Main board, because it's energizing the PSU to develop Vs and Va, and generating data to flash the LED on the Logic board. My feeling is that both the Y-Main and X-Main are cactus. This should ring alarm bells as the panel may be the cause, so be sure to check the screen carefully under bright light for marks or dead pixels. I got caught last week, when disconnecting the X-Main on a D530 stopped the clicking. Forked out for an X-Main but when I fitted it, the Y-Main appears to have failed instantly. Back to clicking relays. Guess they go out in sympathy, and leave you lighter in the hip pocket.           broke Bruce

[t1412]

thanks bruce i did think this,i told the customer,  wasn't happy with ordering boards just see it fail and still have to charge him, so he said he was going to order them himself has he paid 500 pound for it second hand, sorry to hear your out of pocket, be cheeky put some extra on the next job, happy fixing

shaun           

[downunder]

Good thinking, Shaun. Let the punters chance their dosh instead of us. Why should we be out of pocket. Mind you, after a misdiagnosis, we usually end up with the carcass, which may help defray expenses via the pcb.s. But then we're up for disposal. We should charge a hazardous goods disposal fee like tyre companies
+ an agro fee for when things go belly-up.                             Bruce