KM C353 Vertical Lines on Display

[ricmartinho]

Hi everybody!

I have a problem with a C353 that has flashing vertical lines on display (
http://youtu.be/3valepvB4XY). The machine works well. I have replaced the Operation Panel but the problem remains. I checked the connections of the display and all seems well.

Any thoughts on this?

Thanks and Happy New Year!

[Synaux]

MFP board?
Does it flash on and off too?

TAUS1000755EN

[jotunn]

Failed PWB-MFP:
- dry joints in connector soldering
or
- under NV-RAM there is SDRAM memory module K4S641632N-LC75 by Samsung (IC207) used as video memory for display and I'm 90% sure that there is a problem - replacing this memory chip should help. Laptop or mobile phones service with hot-air or IR soldering station should do the job without problem.