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Equipment Repairs => LCD TV forum => Topic started by: vega10 on December 17, 2009,06:45:31

Title: Samsung LE32R72B
Post by: vega10 on December 17, 2009,06:45:31

I have a faulty samsung LE32R72BX/XEC.Horizontal lines across the screen in both the menu and the signal mode for a while, so reducing the interference in menu mode but still in signal mode. I have checked the power supply ok even disconnected the vo controller board and backlight lights up normally sending picture of it!

anyone know of any common faults
thanks

Hakan

Title: Re: Samsung LE32R72B
Post by: jurq on December 18, 2009,17:54:56

Hi,
This is common problem in Samsungs, main board faulty (poor BGA soldering on pcb)...

Title: Re: Samsung LE32R72B
Post by: sparky on December 19, 2009,06:56:38

hi
don't understand (BGA?)

Title: Re: Samsung LE32R72B
Post by: jurq on December 19, 2009,11:18:43

Look at this
http://www.google.co.uk/imgres?imgurl=http://img.tfd.com/cde/_BGA.GIF&imgrefurl=http://encyclopedia2.thefreedictionary.com/BGA&h=438&w=450&sz=103&tbnid=olvBl4rdFz3_LM:&tbnh=124&tbnw=127&prev=/images%3Fq%3DBGA%2BSOLDER&usg=__GFN61fpbRK_yzlwKazhjd6jXPdc=&ei=z6orS_uyNoO24QbLlq2CCQ&sa=X&oi=image_result&resnum=4&ct=image&ved=0CB4Q9QEwAw (http://www.google.co.uk/imgres?imgurl=http://img.tfd.com/cde/_BGA.GIF&imgrefurl=http://encyclopedia2.thefreedictionary.com/BGA&h=438&w=450&sz=103&tbnid=olvBl4rdFz3_LM:&tbnh=124&tbnw=127&prev=/images%3Fq%3DBGA%2BSOLDER&usg=__GFN61fpbRK_yzlwKazhjd6jXPdc=&ei=z6orS_uyNoO24QbLlq2CCQ&sa=X&oi=image_result&resnum=4&ct=image&ved=0CB4Q9QEwAw)

Title: Re: Samsung LE32R72B
Post by: sparky on December 19, 2009,11:45:04

hi
thanks for getting back had a look to see whats involved
thanks

Title: Re: Samsung LE32R72B
Post by: vega10 on December 19, 2009,12:10:22

Thanks for info!

Is it possible to solder again? or have to buy a new mainboard?