IR5000 No Power

[Brian8506]

Machine dead but green power light is on. AC coming into power supply. When you power up power supply fan comes on for about 2 sec, 24v is present then it drops out. I've got a bulletin I'm going to troubleshoot with but I'm wondering if anyone has any other ideas

[mrfixit51]

8500's had that 3volt line going thru the all night power supply,,,, does the 5000 have the same scheme, no 3volts, no power to copier???

[anothertech]

Leaving the AC input and the two pin red and blue connector connected, disconnect all other connectors on the Power Supply PCB.
Turn on the main power switch on and confirm AC voltage is being supplied to J4001. If not check AC circut from wall outlet to power supply.
When AC is supplied to the PCB, J4015 pins 1,2and 3 output a remote signal, 3.3volts DC. If no voltage is present at J4015 pin 1,2 or 3 then replace Power Supply PCB.

Connect J4015 on the Power Supply PCB. Turn on machines' main power switch. The signal leaves the Power Supply and goes to the Main Controller at J1020. If 3.3v is not present at J1020 pins 11,12,13, disconnect J1020 and J4015. Ohm check wire harness. Disconnect all connectors on the Main Controller to remove all loads on the pcb. With J1020 and J4015 connected see if 3.3v is present at J1020 pin 11,12 or 13 when powering up machine. If not replace Main Controller pcb.
The 3.3v leaves the Main Controller J1021 and returns back to the Power Supply PCB J4013 pins 4 and 5. When this remote signals are present at J4013, DC power is outputted from the Power Supply.

[anothertech]

I also found
Problem :
When the main power switch is turned on, the power led would just flash momentarily.

Solution :
Replacing the Main Controller fixed the problem. (p/n FG6-6531-000) ,

[Brian8506]

IR5000

I followed that whole bulletin disconnecting connecting etc. I have 3.3 volts at J1020 pins 11,12,13. Reconnected and i have 3.3 volts at J4013 pins 4 and 5, all constant. I pulled and reseated the memory and dimm. Pulled J1026,1060 from main controller and let reset for 3 minutes. Still just the power supply fan for about 2 seconds. Bulletin says if no 3.3v then main controller. At this point I'm guessing power supply but why do I get 24v for 2 sec. Even cut some tie wraps. It was sudden when customer changed originals.

[SCREWTAPE]

Another pcb that can cause this is the SDRAM on the main controller PCB.

Also, Check for 5vdc on the Main Controller pcb at connector J1058, pin 1 and pin 2 both should have 5vdc on them with respect to ground. If 5vdc is missing or is incorrect, check J4016 at the DC Power Supply for proper connection and proper voltage. If J4016 connection is good but voltage is bad, try replacing the DC Power Supply. The part number for the DC Power Supply is FH3-2590-000.

The General Circuit Diagram labels connector J1058 mistakenly as J1026.

[creppy]

I have experienced similar problems make me frustated, my ir6570 will not boot up only power light blinking after lightning storm, that problem solved after i try replacing maincontroller with other good machine.
goodl luck

[teckat]

Machine dead but green power light is on. AC coming into power supply. When you power up power supply fan comes on for about 2 sec, 24v is present then it drops out. I've got a bulletin I'm going to troubleshoot with but I'm wondering if anyone has any other ideas

sounds like a short to frame somewhere/
u stated it happened when customer changed originals/so he was doing some scanning /
****here is an old tech pub: No power present but the green power light on the display panel is on.
Check for pinched wires under the scanner in the harness between the main controller and the control panel. These wires may be pinched between the scanner and mounting hardware.
AUT_5107..JPG
Below is the pinched wires.
AUT_5104..JPG

[Brian8506]

Gonna check that one Monday

[Canuck]

All Canons have a remote signal, from the main controllers,to the dc power supply. If the green light is on, the all-night is on(3.3v i think). Check the fuses the on dc power supply and make sure the remote is present from the controller board and at the power supply. Pull the drawer out,disconnect all process connectors,pull the process unit out,duplexer,unplug df,finisher,any thing the machine dont need to run the boot

[creppy]

sounds like a short to frame somewhere/
u stated it happened when customer changed originals/so he was doing some scanning /
****here is an old tech pub: No power present but the green power light on the display panel is on.
Check for pinched wires under the scanner in the harness between the main controller and the control panel. These wires may be pinched between the scanner and mounting hardware.
[ATTACH=CONFIG]3776[/ATTACH]
Below is the pinched wires.
[ATTACH=CONFIG]3777[/ATTACH]

tecktat right, short to frame and machine go to system protection mechanism

[teckat]

it always pays to backtrack to what you or customer were doing before an issue happens , thanks

[Brian8506]

Replaced the power supply. All fixed. Onto the next problem. March has been rough. I thought it unusual that I got 24v for 2 sec on and off then lost it. Thanks for all the replies.

[teckat]

Replaced the power supply. All fixed. Onto the next problem. March has been rough. I thought it unusual that I got 24v for 2 sec on and off then lost it. Thanks for all the replies.

great fix> u mean the switching regulator/ which one FH3-2590-000 DC PS / or FH3-2592-000 Accessory PS- it would be great if u can test it in another machine to see if board or a connector was issue.
just curious what connector # on PS had the 24v issue

[Brian8506]

I replaced the switching regulator from another machine FH3-2590-000. I'm old school, I still call it a power supply. Every 24v line I checked fired up for 2 sec then cut out. The fan mounted on the power supply (see what I mean) would come on and go off periodically. I'm in the northeast and we've had lovely weather for Seattle or London and my customer said they've been getting power failures and brownouts.