My GR 3770 has had a stroke...

[Chuck29620]

When I turn this unit on I get what you see in the attached picture. I tried a reset and I replaced the entire front control panel assembly and still get the same thing. None of the buttons will function. The copy count comes up with 519 every time. Any suggestions?

[umar]

Re: My GR 3770 has had a stroke...

1. check battery voltage
2. unplug all connection to main system pcb for while,then plug it again
Try those first,if dosn't success let me know

[Chuck29620]

Re: My GR 3770 has had a stroke...

I checked the battery which was fine but I swapped it out to be sure. I left the main PCB disconnected over night but it didn't help so I swapped it out... No Change. I have swapped out the Image Processing PCB and the Motor Control PCB. My next swap will be the Power Supply PCB. Any other suggestions?

[umar]

Re: My GR 3770 has had a stroke...

Please upload picture sys pcb after you turn ON the machine.
More detail picture,more better

[Chuck29620]

Re: My GR 3770 has had a stroke...

I assume this is the region you are requesting.

[umar]

Re: My GR 3770 has had a stroke...

Turn OFF machine
Release that IC ROM with sticker "RH/v2.11" for while then put it back again.
How?

[Chuck29620]

Re: My GR 3770 has had a stroke...

I've been gone for a while but I'm back and working on this machine again. I removed the IC ROM for about an hour and changed the Power Supply PCB. No change.