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Frank the tv man
Frank the tv man, Technician
Category: TV
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Experience:  15 years of TV repair experience
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LN52A530P1F Samsung tV black screen problem diagnosis

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LN52A530P1F Samsung tV black screen problem diagnosis
IF YOU HIT TH E MENU BUTTON ON THE SAMSUNG REMOTE THAT CAME WITH THE TV DOES THE MENU COME UP? WHAT SOURCE ARE YOU USING? HAVE YOU TRIED MULTIPLE INPUTS?
Customer: replied 6 years ago.
Not menu comes up using the remote screen. As to inputs I've hooked the cabe direct to the TV... I can make out extremely faint (almost invisible) movement on screen
YOU HAVE A PROBELM WITH THE BACKLIGHT. MORE THAN LIKELY IT IS THE INVERTER. I HAVE SEEN THIS CAUSED DO TO A COLD SOLDER JOINT BUT YOU MAY HAVE TO REPLACE ONE OR BOTH INVERTERS. TO INSPECT THE INVERTER TAKE THE REAR COVER OFF. THE INVERTER ARE ON THE RIGHT AND LEFT SIDE UNDER THE BLACK COVERS. LOOK AROUND THE LITTLE TRANSFORMERS FOR A SOLDER JOINT THAT IS CRACK OR LOOSE. IF YOU DO NOT SEE ANY I WOULD REPLACE BOTH INVERTERS. I CAN SEND YOU A LINK TO THE PART BUT I NEED THE FULL MODEL CODE WITH THE VERSION OR THE SERIAL NUMBER. THEY ARE LOCATED ON THE RIGHT SIDE REAR OF THE TV.
Customer: replied 6 years ago.
S/N ALDL3CFQ602125B
Model # XXXXX
Model Code: LN52A530P1FXZA
Customer: replied 6 years ago.
Also are there two inverters per side, an upper and a lower?
THERE ARE 4 INVERTER BOARDS- RIGHT UPPER, RIGHT LOWER, LEFT UPPER, LEFT LOWER. HERE IS LINKS TO THE PARTS.


http://www.samsungparts.com/Products/Parts_and_Accessories/PID-BN81-02461A.aspx?model=

http://www.samsungparts.com/Products/Parts_and_Accessories/PID-BN81-02462A.aspx?model=

http://www.samsungparts.com/Products/Parts_and_Accessories/PID-BN81-02463A.aspx?model=

http://www.samsungparts.com/Products/Parts_and_Accessories/PID-BN81-02464A.aspx?model=
Customer: replied 6 years ago.
Are you recommending I replace all four boards ? That's a bit spendy. Can Any further diagnostics be done to isolate the issue to one board or another?
YOU COULD INSTALL THEM ONE AT A TIME AND SEND THE ONES YOU DON'T NEED AS UNUSED.
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Customer: replied 6 years ago.
Frank:

Just thought you ought to know your answer was completely wrong the inverters that I paid for did nothing it was the power board so now I'm out alot of cash AND $17.00 for nothing...