LG LD450 Dead after lightning

[landyboy]

I picked up a LG LD450 that went dead after lightning strike. I have a spare power supply from a donor set that I know is good so I swapped it and nothing. The power light comes on and when you turn the set on it flashes slow and dim. I am pretty sure it is Main Board. There is a small button on the main board and when I push that the backlights do flash for a second and go back out. It it worth trying to shoot the trouble on the main board or is it a lost cause?

[tom66]

Re: LG LD450 Dead after lightning

It has an RS232 port -- any way you can hook that to a PC and see what it says?

[landyboy]

Re: LG LD450 Dead after lightning

i probably can do I need any special software to communicate with it once its connected?

[tom66]

Re: LG LD450 Dead after lightning

HyperTerminal is built into Windows XP onwards. You would need to check what baud rate, start/stop/parity it uses, but that should be in the user manual.

[landyboy]

Re: LG LD450 Dead after lightning

OK I just have to dig up a rs232 cable and I should be good to go. I will post when I find one.

[Ltank]

Re: LG LD450 Dead after lightning

I had 60" LG that had lightning strike damage. It took out one of the HDMI inputs, the other inputs worked fine including the second HDMI port. Does the menus work?

[landyboy]

Re: LG LD450 Dead after lightning

No wont power up at all. I know the power board is good I had a spare from a unit with a cracked screen.

[Ashroyer05]

Re: LG LD450 Dead after lightning

any solution found with this?

[capkid]

Re: LG LD450 Dead after lightning

What's typical with lightning strikes is that the PSU or the main board is damaged.