Other Parts Discussed in Thread: TPD1E04U04
Hi,
Can any body suggest changes to be done while doing ESD test as our LCD is failing even with TPD1E1B04 diodes mounted on mipi lines of the LCD & also Type C input connector (data lines) & also LCD back panel was grounded to ESD gnd.
- Contact discharge test (+/-2 & +/- 4KV) at USB Type C power connector : Display got blank completely (back light was there) at +/- 4KV . But this will be considered as a Type C device (Failure) since human intervention was there .
- Air discharge test (+/- 4KV & +/-8KV) : The display went to hung state & audio was playing, sometimes got blank completely (back light was there)when iterations were repeated with +/- 4KV .
- Discoloration in display along with split screen was observed at +/- 8KV testing, and audio was playing. After reboot, the system came back to normal state. But this will be considered as a Type C device (Failure) since human intervention was there .
Initially we checked with ESD diode not mounted & then with diodes mounted , but the result appear to be same in both the cases as mentioned above. kindly let us know if there any changes to be made so that the test could be passed
Regards,
Akshay