screen information gone screen go blank

[pc123321]

c3220 machine start up and warm up complete
a while screen go blank no information on the screen
why?

[Brian8506]

Re: screen information gone screen go blank

Is it just in sleep mode? Check sleep time under timer settings

[teckat]

Re: screen information gone screen go blank

c3220 machine start up and warm up complete
a while screen go blank no information on the screen
why?

-------------??
is the POWER GREEN indicator ON

other than posted Sleep check/

First I would remove > clean ends & Re-seat the memory DIMMs


Check the Main Controller PCB LED101 which is ON during normal operation. When you experience a blank LCD screen, inspect the Main Controller PCB LED101, if the LED is OFF, then replace the SRAM PCB (FG3-3669-000) which is mounted on the Sub Main Controller PCB.
Check the connection between the Sub-Main Controller (J1303) and the Main Controller (J1209) to see if they are seated correctly.

Ensure that the voltage between the neutral and ground poles is 1/2 a volt or less.


Could also be a Power Distribution PCB issue