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Equipment Repairs => LCD TV forum => Topic started by: t1412 on April 17, 2020,15:59:05

Title: samsung UE49KU6100KXXU
Post by: t1412 on April 17, 2020,15:59:05

hi got this samsung UE49KU6100KXXU curved, switch tv on screen flashes blue screen the off and cycles on and off, i've disconnect the mainboard powered the tv on backlight comes on stays on, i have replaced the mainboard, but still the same fault, i'm thinking the panel is faulty

thanks
shaun       

Title: Re: samsung UE49KU6100KXXU
Post by: downunder on April 18, 2020,08:07:02

Hi Shaun, I've been caught out by that before. In the 70KU it's caused by a shorted D9102C in the power supply but I don't know it this applies to the 49KU. Check it out anyway.          Bruce

Title: Re: samsung UE49KU6100KXXU
Post by: t1412 on April 18, 2020,15:38:59

thanks bruse, i'll check it out

shaun

Title: Re: samsung UE49KU6100KXXU
Post by: t1412 on April 19, 2020,11:04:26

forgot to say no image, just flashes on and off blue screen, the woman did mention there's line down the screen, may be a
panel issue

Title: Re: samsung UE49KU6100KXXU
Post by: downunder on April 20, 2020,05:19:01

Might pay to lift metal strips covering the bottom panel boards and see if she's been overzealous in cleaning the screen, maybe detergent has run down onto the strips and corroded them. just a suggestion - could be t-con or panel.               Bruce with a "C",

Title: Re: samsung UE49KU6100KXXU
Post by: t1412 on April 20, 2020,13:16:04

  :57: thanks bruce, there's no tcon board, i'll have a look

shaun

Title: Re: samsung UE49KU6100KXXU
Post by: downunder on April 21, 2020,06:22:15

Could be an integral part of the main board or built into the bottom strips.

Title: Re: samsung UE49KU6100KXXU
Post by: michael first on May 06, 2020,05:09:47

hello,could also be a smd capacitor shortcircuited on the base plates of the panel;usually removing it helps.