Canon IR3100c blank screen

[sharphead]

hi, i work with sharp but an ir3100c was left in to be looked at, the screen is blank but the power indicator light on the keyboard is lighting up the fans are starting the lamp moves. I did a search on here and reseated the memory but no luck

[teckat]

Re: Canon IR3100c blank screen

Ensure that the voltage between the neutral and ground poles is 1/2 a volt or less.
If the voltage is higher than 1/2 a volt, an electrician needs to look at and correct the outlet.



u mean a iRC3100 !!
do u have extra memory to swap ?

Is LCD backlight lit ? or is panel completely blacked out ?

power off/ open back> remove>re-seat boot rom
check all connectors on DC Controller( re-seat all )

did u remove LCD panel to check it's connectors ??

may sound stupid> but did u check the contrast button on control panel

[sharphead]

Re: Canon IR3100c blank screen

Thanks for the reply checked voltage its fine, unseated and reseated the boards and connections on back off the copier and under the control panel, didnt even release there was a contrast button tried it but no joy at all the screen isnt backlight no light at all unfortunately also dont have memory to swap thanks for the help but looks like a blank at this stage

[teckat]

Re: Canon IR3100c blank screen

Thanks for the reply checked voltage its fine, unseated and reseated the boards and connections on back off the copier and under the control panel, didnt even release there was a contrast button tried it but no joy at all the screen isnt backlight no light at all unfortunately also dont have memory to swap thanks for the help but looks like a blank at this stage

does the printer go into rotation (fix unit heat up) ?
do u have access to any memory for testing ?

try this>
power off printer>open back>unplug HDD>power it up

see if LCD comes on with splash screen?progress bar ???

other checks>>>>

-Remove the expansion memory if it is installed and check whether the captioned symptom is resolved. If not, go to the next step without installing it.

-Remove and insert the SDRAM and BootROM, and check whether the symptom is resolved each time. Also, make sure that the HDD connector is securely fitted.

-In order to check whether the original slot on the Main Controller PCB is faulty, remove the SDRAM and insert it into another slot (for the expansion memory), and check whether the symptom is resolved