Samsung plasma PS50B430P2W relay clicking noise - no picture

[Hamie]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

I'd check zener zd5304, you'll probably need to remove it to get an accurate reading remember what way round it goes. Cathode to black stripe.

If shorted it may have caused quite a bit of damage.

If its OK, replace the igbts and test again between vs and Gnd. If its now in the high K ohms....

Plug in and pray.

[Hamie]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

There's a few things you can do to save your parts a 200w lightbulb and variac would be handy. If not stick with the prayers.

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

thanks, I'm just going to remove zener diode. what do you think about X board, is there chance it might be damaged too as Y and X in direct connection?

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

zener diode, one way reading 900, other way none, it hasnt got black strip

[Hamie]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Seems OK.

Check zsus the same why as you've checked the ysus.

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

do you mean X instead of Z?

[Hamie]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Yeah LG call the board a Z-sus
Samsung a X-main. Same part.

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

so on X main, I should check resistance Ve to ground? thanks

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

X main is shorted too, no resistance between Vs and ground, meter set to 200ohms show 01.6, few transistors are shorted, also found capacitor which discharge very fast. also few diodes shows 0 on diodes test in both direction.

i'm just wondering if it is worth to fix this TV anymore, transistors for Y sus will cost me around £30, for Xsus maybe more than that as it seems more damaged than Ysus. Ebay have only Ysus for cost of £40, I didnt find Xsus at all. Even I would find both Y and X from ebay working, doesn't mean TV will work once they both plugged in, something else might be damaged. TV is 9 years old now. I think it is time to say goodbye. what your thoughts are?

[gforce1uk]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

hi, i watched a video on youtube and if you unplug the y buffer and you hear the start up sound, then the board needs replacing or repairing, replacing is very cheap with ebay these days, it also says its better to replace y sus and buffer boards. sorry if this sounds a bit green, im new and having a similar problem with my plasma.

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Hi did you read whole thread? have you seen instructions Hamie gave me? two boards are at least damaged, both boards are expensive on ebay, and it is not worth to fix 9 years old TV.

[Hatmpatn]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Did you fix this?

[Damtom]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Owner didn't want to pay that much (both boards were over £100 at the time) For 9 years old tv . Tv went to scrap yard

[Hatmpatn]

Re: Samsung plasma PS50B430P2W relay clicking noise - no picture

Okay, thank you for getting back to me!