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LG MZ-42PZ44

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markc:
HI,
I have a problem with this set, the picture was dark and a replacement ZSUS panel cured the fault.
But after a few days the ZSUS panel failed again. I have replaced this, but the 2nd panel has now failed.
Could anyone suggest was is dammaging the ZSUS panel? Is is the plasma screen itself?

Thanks
Mark

mulja:

--- Quote from: markc on November 05, 2009,12:25:36 ---HI,
I have a problem with this set, the picture was dark and a replacement ZSUS panel cured the fault.
But after a few days the ZSUS panel failed again. I have replaced this, but the 2nd panel has now failed.
Could anyone suggest was is dammaging the ZSUS panel? Is is the plasma screen itself?

Thanks
Mark

--- End quote ---

Hi
Check the voltage on P3 at botton of Zsus board pin8 must 15v
if this voltage is to low then this is problem why your ZSUS board go faulty
Let me know what reading you get?

markc:
Thanks for the information. I will check that & let you know.

Mark

markc:
Voltage at Pin 8 is 10.42V!

mulja:

--- Quote from: markc on November 10, 2009,05:40:54 ---Voltage at Pin 8 is 10.42V!

--- End quote ---

Always check this voltage before you change ZSUS if voltage to low then your new ZSUS will blow again after 1-4 weeks voltage on PIN8 must be 15v this voltage come from YSUS board IC16 (15v regulator)
you need replaced C72 (25v 33mkf) beside IC16...

Good luck :brinda:

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