LG Plasma 50PC1DR- Y-SUS Issues

[tom66]

Re: LG Plasma 50PC1DR- Y-SUS Issues

The SMD caps he probably refers to are the round radial silver can ones. Which have a valued printed on them. They are electrolytics.

[cheebster]

Re: LG Plasma 50PC1DR- Y-SUS Issues

AH ! Thanks tom66. I was wondering if i should replace them, or at least check all of them for a proper ESR value.

I don't have a esr meter, but i could buy one if it's handy to have..

[tom66]

Re: LG Plasma 50PC1DR- Y-SUS Issues

A scope is a more handy thing to use, so save up for that first IMO.
I find very few electrolytics (maybe two in total) that have failed without bulging.

[cheebster]

Re: LG Plasma 50PC1DR- Y-SUS Issues

Yes. But reading that article, it seems that the failed SMD radial silver ones that arent failed but just, old, could be the culprit of the IPM failure. Im digging a little deeper, because those fixed plasmas i got here are for my friends and i dont want them to come back. im selling them for cheap but still, i want the repairs to be reliable...

if its just a few caps more to replace, ill do them without thinking twice

[cheebster]

Re: LG Plasma 50PC1DR- Y-SUS Issues

Hi tom66. I've found a site yesterday, never came across this one, has a lot of free tv service manuals.. i thought i would share !

http://www.servicetron.com/tv-service-manual.html

Seems to be a lot there !

[tom66]

Re: LG Plasma 50PC1DR- Y-SUS Issues

Hi tom66. I've found a site yesterday, never came across this one, has a lot of free tv service manuals.. i thought i would share !

http://www.servicetron.com/tv-service-manual.html

Seems to be a lot there !

Thanks will keep it in mind.

[jjanssen7]

Re: LG Plasma 50PC1DR- Y-SUS Issues

cheebster (or anyone else), did you ever figure out if the LG IPM's are compatible with the sanyo ones? jo15b,jo15c,jo15e, jo16b,jo16c,jo16e etc?

Thanks!

[cheebster]

Re: LG Plasma 50PC1DR- Y-SUS Issues

Hi there. Yes they are ! But make sure to use the good ones..

here's a quick x-ref i've done by searching a little, it should be right !

yppdj014 = STK795-811
yppdj015 = SPI-50X3E240
yppdj016 = SPI-50X3E120
yppdj017 = STK795-821 STK795-820
yppdj018 = STK795-821 STK795-820
yppdj019 = ???
yppdj023 = ???

[microvibe]

Re: LG Plasma 50PC1DR- Y-SUS Issues

resureccting old thread but i have same tv and positive its y-sus, my tv powers on fine plays sound but the screen flashes on and off with ipm on y-sus clicking away. what do the 2 ipms on y-sus do exactly. one of them is humming like the ipm's on the zsus. when the screen flashes i dont see a picture or menu picture its just white noise or white and grey thin lines. i have tried with buffers disconnected as well. the tv didnt have any bad fuses the psu caps were all good and it will play a whole movie like this without shutting down. i did use the -vy vsc test points and voltages are all over the place with the clicking. these boards are pricey so i would like to repair it instead of replace but at $40 a ipm not sure if its economical lol

[microvibe]

Re: LG Plasma 50PC1DR- Y-SUS Issues

actually my tv isnt same as thread title just same ysus i believe i have a 50pc3d

[tom66]

Re: LG Plasma 50PC1DR- Y-SUS Issues

You probably have bad Y-sus and buffer boards.

One IPM, the one closest to the coils, does energy recovery. Makes the plasma driving more efficient.

The other IPM sustains the panel, the major part in making it light up.