Film-Tech Forum ARCHIVE: NEC iS8-2K - "Error

my profile | my password | search | faq & rules | forum home

»	Film-Tech Forum ARCHIVE » Operations » Digital Cinema Forum » NEC iS8-2K - "Error - cover open"

Author

Topic: NEC iS8-2K - "Error - cover open"

Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000

posted 03-01-2016 08:46 PM

After removing and replacing the lampholder, I got "Error - cover open" on the LCD panel after replacing it. I've double checked that the cover is properly in place and that the microswitch is closed (I heard it click as I tightened the screw).

Pressing the cancel button makes the message go away and the display say "Standby," but it still won't let me turn the projector on, and the status LED continues to flash red.

Any ideas as to how to clear this error? Do you have to do something silly, like hold a button down for 10 seconds and then enter the service code? The service manual (page 79 of the PDF) simply says that the solution is to close the cover, and doesn't mention anything like this.

Many thanks in advance.

EDIT / UPDATE - dust/crud in the microswitch. Blasted the hell out of it with a compressed air spray and the projector started.

| IP: Logged

Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006

posted 03-01-2016 11:13 PM

I was going to suggest that you double check the door switch, since
I've had a similar experience with an NEC, but I just couldn't imagine
YOU, of all people, having "crud" in any of your projectors. But it looks
like some somehow got in there, you found it, & all is OK now

| IP: Logged

Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000

posted 03-01-2016 11:19 PM

That was the problem, sorta. One of the reasons I'd opened it was to have a good vacuum / cleanout, and also check out what state the air filters were in. Doing that must have dislodged crud, that landed in the hinge of the microswitch.

| IP: Logged

Stephan Shelley
Jedi Master Film Handler

Posts: 854
From: castro valley, CA, usa
Registered: Nov 2014

posted 03-02-2016 06:06 PM

Might think about replacing that micro switch. Older NECs have a habit of them going bad.

| IP: Logged

Frank Cox
Film God

Posts: 2234
From: Melville Saskatchewan Canada
Registered: Apr 2011

posted 03-02-2016 06:44 PM

Instead of replacing the switch, could you just permanently short across it, removing one proven source of failure? Or would somehow cause bad things to happen?

| IP: Logged

Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000

posted 03-03-2016 01:17 AM

That thought crossed my mind, but the little PCB with the microswitch on it has one or two other components as well, which makes me worry that trying to short the switch might activate some sort of tamper alarm. I've had enough nightmares trying to reset accidentally triggered tamper alarm errors on our other two NECs to be very anxious not to go there with this one.

| IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.