tevion lcd 4202 blue asking for pin to get in?

Tevion lcd 4202 blue?
i fixed the power suppy 1000mics power ok but comes on blue screen asking for pin i have never used a pin on it.tried loads of pins.help
john taylor, November 2020


done
May help:

http://www.tevionservice.co.uk/index.php?option=com_wrapper&Itemid=33

Sbej, November 2020
link Click here to see other fixes for Tevion.