Hi Andy, Thanks for the reply. It is a temporary failure, we have to do a restart to make the system back to working condition. Also when a thick metal wire is connected between the LCD back plate and the shield ground on the system cable input, this issue got solved. Since we dont want to use an external wire strip in the product (and we dont have provision to add it in the plastic casing), we are planning to install TVS diodes on the C37,C51,C153 and C183 and do a re-test. Regards,Siva
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