SANYO DP50749 Clicks on and off repeatedly

[1beertap]

Hello,

when I turn this tv on, it comes on for a few seconds and cuts off repeatedly. There is a green LED on the SC board that comes on and cuts off with the cycling of the relays. There is no LED on the SS board. The panel will light up but seems dim. Again, I haven't had many experiences with plasma tvs. Thanks.

[tw2005]

Re: SANYO DP50749 Clicks on and off repeatedly

Well it's panasonic based panel and boards and if the panel is energising but this is cycling so I hazard a guess at mainboard. maybe logic board.

[tw2005]

Re: SANYO DP50749 Clicks on and off repeatedly

Some clue reading this

http://www.coppelltvrepair.com/p/57/...rd-pwbmainj4ff

This tells you not a lot

Fixes following symptoms:
-won’t come on
-green light comes on then off
-no picture, no sound

http://www.ebay.com.au/itm/SANYO-Mai...-/141220165383

[1beertap]

Re: SANYO DP50749 Clicks on and off repeatedly

After finding a service manual and reading online about others that had similar problem, I decided to order a hynixx nand flash chip with sw84 firmware preloaded. I'll see how it goes and report back. The location of this chip is at IC5057 on the main board.

tw2005, I bet IC5057 is one of the chips sold in that kit on ebay.

[1beertap]

Re: SANYO DP50749 Clicks on and off repeatedly

I received the new hynixx nand flash chip today, replaced the old one, and now the tv is working great!!! My guess is that the firmware must of gotten corrupt. Thanks tw2005 and others with this fix.

[pituk]

Re: SANYO DP50749 Clicks on and off repeatedly

I have this exact same problem with the Sanyo Dp50749 , can you tell me where to order the IC5057 replacement on the main board .
Thanks