MP 6000 SC672

[KeviM]

Re: MP 6000 SC672

Did you manage to try another control panel?

[KeviM]

Re: MP 6000 SC672

I should also point out that there aren't any obvious signs of failure on any of the PCBs on the back of the machine, like a burnt patch or a blown glass/ceramic fuse on the boards.

In general, are there any visual pointers or something I can probe with a multimeter to test the condition of any of the other boards there?

In most cases I don't find any visible signs of damage.

I would say only about 25 % of the time is there visual signs of damage.

[KeviM]

Re: MP 6000 SC672

Did you manage to try another hard drive?

[orestesp]

Re: MP 6000 SC672

Did you manage to try another control panel?

Did you manage to try another hard drive?

No, I didn't.

If it was indeed the HDD, should it throw a different code when it was completely disconnected from the machine?

Also, here are two videos of the last time I got the machine to somewhat work.

https://we.tl/t-qOtfZBrcdV

The flickering on the LCD was indeed how it looked irl, not some camera issue. The machine was trying to power on but it seems that something was keeping it from continuing with the startup sequence and it was constantly starting over.

[KeviM]

Re: MP 6000 SC672

Happy new year everybody.

Update on the status of the machine: Putting in a known good controller didn't fix the issue (transfered only the NVRAM, then also the SD cards - basically shuffled everything around to see if any combination works). Still nothing, same exact behavior as before.

Is there any way to check the PSU on the bottom of the control box? I mean the suspect list right now is:

-PSU on the lower part of the control box
-IPU
-The VIB or the entire opeartion panel?

Any other suggestions?

Thanks a lot.

Yes there is a good possibility that the PSU is at fault

[KeviM]

Re: MP 6000 SC672

Also check your harness going from control panel to the controller. It may be damaged

[slimslob]

Re: MP 6000 SC672

Yes there is a good possibility that the PSU is at fault

I have seen where screws have gotten dropped from the upper half of the machine have ended up in back of the PSU board. No visible damage until you pull the board.

[Phil B.]

Re: MP 6000 SC672

I have seen where screws have gotten dropped from the upper half of the machine have ended up in back of the PSU board. No visible damage until you pull the board.

+1 there is always one tricky screw to get out.
A lazy tech won't chase it when it drops and that is just problems cascading from then on.

Sent from my SM-G960U using Tapatalk

[orestesp]

Re: MP 6000 SC672

+1 there is always one tricky screw to get out.
A lazy tech won't chase it when it drops and that is just problems cascading from then on.

Sent from my SM-G960U using Tapatalk

I have seen where screws have gotten dropped from the upper half of the machine have ended up in back of the PSU board. No visible damage until you pull the board.

I don't think this is the cause, the machine hasn't been touched for technical work since late July/early August, has since done approx. 50,000 prints and is in a very controlled environment with regards to who uses it.

The problem does seem to be power related, I will do an entire control box swap to see if any of the boards on it are to blame.

Is there any point to try doing firmware upgrade on it?

[Phil B.]

Re: MP 6000 SC672

I don't think this is the cause, the machine hasn't been touched for technical work since late July/early August, has since done approx. 50,000 prints and is in a very controlled environment with regards to who uses it.

The problem does seem to be power related, I will do an entire control box swap to see if any of the boards on it are to blame.

Is there any point to try doing firmware upgrade on it?

I would try firmware.

But being an end user you haven't seen what we have.
Hell I had one of my lazy techs leave screws partially screwed in. A few LOOSE screws not installed but laying on top of the board cage then installed the covers and walked away. I week later I had to go out on the unit an low and behold, the screws moved due to vibration and fell into the PSU and fried it.
31 years in the industry and I've seen some crazy shit.
Hell had a mouse fry the PSU because he chewed through the cables. He was smoked but still had a wire in his mouth.

Sent from my SM-G960U using Tapatalk

[slimslob]

Re: MP 6000 SC672

I don't think this is the cause, the machine hasn't been touched for technical work since late July/early August, has since done approx. 50,000 prints and is in a very controlled environment with regards to who uses it.

The problem does seem to be power related, I will do an entire control box swap to see if any of the boards on it are to blame.

Is there any point to try doing firmware upgrade on it?

Until you can get it to power on consistently, I would not risk it.

[orestesp]

Re: MP 6000 SC672

Until you can get it to power on consistently, I would not risk it.

The machine is stable as in no LCD/activity LED blinking, it will wait for the handshake timeout between the op panel and the control board and then display the SC-672 but is there any way corrupt firmware could cause flickering/putting the device in some sort of a boot loop, when moments later it booted up just fine, then degraded to constantly trying to turn on and retrying over and over again and then dying again?

[Phil B.]

Re: MP 6000 SC672

The machine is stable as in no LCD/activity LED blinking, it will wait for the handshake timeout between the op panel and the control board and then display the SC-672 but is there any way corrupt firmware could cause flickering/putting the device in some sort of a boot loop, when moments later it booted up just fine, then degraded to constantly trying to turn on and retrying over and over again and then dying again?

Simple answer YES. It can cause freezing... reboots.
But as Slim said you need to find out WHY it's kicking the error AFTER you get it stabilized.

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[GIUBOSS]

Re: MP 6000 SC672

Seeing the video of the display flashing I would like to get a tip out of my head, check the main switch, if burned it can cause false contact.

[GIUBOSS]

Re: MP 6000 SC672

Since I saw the video of the display flashing I would like to get a tip out of my head, check the main switch, if burned it can cause false contact.

I'm not sure if the machine will update the firmware if it doesn't get off to a good start first