Found the TFT display lightspot with SN75LVDS83B

PHILIP HSU

Expert 1900 points

Other Parts Discussed in Thread: SN75LVDS83B

Hi Sir,.

we founf the TTL toLVDS(SN75LVDS83B) application with lightspot (random)...

why the lightspot be show ? status was attached , thanks

Doc1.docx

over 11 years ago

0 Diego Cortes over 11 years ago

TI__Mastermind 36085 points

Hello Philip,

Is this issue happening on more than one panel?, What do you mean with "random"?, this is the firs time I see an issue like this, could you explain why you think that the SN75LVDS83B causes the issue?

Best regards,

Diego.

0 PHILIP HSU over 11 years ago in reply to Diego Cortes

Expert 1900 points

Hi Diego,.

Yes there were several panels with this symptoms (4fail / 4test ,), the "random" mean lightspot in TFT corner or any site , besides the transciver removed ,with test the competitors fine...

could you could give hint for us tracing the root cause please ? thanks2818.Protel Schematic.pdf

Interface

Interface forum

Found the TFT display lightspot with SN75LVDS83B