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DKS1710 - Racks not turning


HPC47
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Hey Folks,

Tried to turn on my machine this morning and was greeted by this message:

"Timeout of starting rack so paper evacuation failed.

SOURCE:[ERROR]Source paper transport board Command level."

I've tried to run some diagnostics and can only confirm that the start racks command is being sent but they are not starting.

Any help would be very much appreciated.

Thanks.

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I had the same problem on my 1710. It was the tank board - about $1,700.00. There is a way to check if it is the board or not. When LD32 is green - TP 97 should read 24V (Red is ground). That is the power that goes to the rack motor. If there is no reading the board has to be replaced. I did it myself. Just be careful

Part # N060310896

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Beach photo - Call me next time if you want to spent such money for repair - I could fly to you for SMD part replacement  ;D ;D

And at least I know what are my new tankboards for 1500 series worth :)

PSkaro - Dks1600 is using the same motor for the racks as DKS1500 ? 060929085D ?

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Yes, but it has to be done in some electronic repair shop, because it is not easy to replace, I sent it to one TV repair shop and the price tag was around 50€  ;)

But first check the input voltage on motor terminak and check the motor itself, maybe it would be best to call somebody who is repairing electronics like TV repair person ;)

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Hi Guys,

Finally managed to get hold of a voltmeter and have checked the board. LD32 is green but I am not getting any reading from TP97. Now, this may be because I'm not making contact correctly. So, apologies for appearing rather obtuse (its been over a decade since I did any electronics), but I am to place both contact on TP97 right? :-/

alper76 - How much are you able to get the tank board for? And are you based in the UK?

Thanks.

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Right, providing I've checked my tank board correctly, I do need to change my tank board. PhotoMe have quoted me £724.15+VAT and delivery.

Not too bad I guess.

Only problem is they won't have any stock for another 6 weeks! :(

So much for my business.

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HPC47 - you really don't know someone who works in electronics or don't have any electronic workshops around ? TV workshop or electronic workshop is good solution but it can be done with any other electronically advanced amateur with proper tools. this driver is through hole component -not really complicated thing to remove. since you don't get PCB in next 6 weeks - try to look better in the neighborhood and repair the bad one. U have nothing to loose.

off course if board is properly measured.

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Hey relaxia,

I am hoping a guy will be coming in over the weekend to have a look at it for me. And I agree, considering I'd have to sit tight for 6 weeks, I may as well try anything! I have to admit though, I'm glad I'm not paying for a service contract with PhotoMe; that would seriously be throwing money down a black hole.

I guess I can get on with some paperwork for the time being ;)

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You can also connect motor directly to external power supply wich have variable voltage selector.

You should set voltage to some value which will give the same or little higher speed in Hz on the screen. One off my customer done it like that before he repaired the board and the 12V set value was very close to the default speed, but his chemistry is set to work for 30s developing speed.

For 20s process I do not know which voltage value is required, but maybe somebody can measure it on there machine for you.

Off course this PS has to be at least 1A or more and it would be good that you put some switch otherwise the motor would be turning all the time, maybe would be the best to use 220V dryer input for this external PS and in that way you do not need the switch or some relay circuit ;)

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I was once asked for motor for DKS2 - went faulty after 8 years of work.

Brushes were totally used. My customer in hurry tried to repair it with other stuff picked up from electric shop. Don't even try this - it was useless, high risk of damage whole motor like that.

After this action I have spare motor for DKS1500 (bare- without pulley and optodisk at the rear) left on stock - just in case someone else calls ;)

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anyway RaySmith it's still the motor - but suggestion is good

HPC - YOu check the racks are turning freely ? checked the clutch axes as well ?

another possible points:

a) shaft bearings could also be affected

B)  Diagonal bearing tubes in technical chute could be damaged - means one of racks could block whole thing...however I have seen already a case machine was working without baearings and axe inside was grinded to a half. :)

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Just seen this thread. On my 1610 the rack motor bearing collapsed, allowing the shaft to move around and it would cause the motor to stall. The error code from the machine was the same, the racks not starting. A replacement motor fixed it.

There were the problems in the beginning with DKS3 rack motors, I had the same case with exit motor bearing and it was replaced with DKS2 rack motor which is not completely the same but it fits and at least it is Made in Germany which is not the case with some DKS3 motors. Anyway I received new motor from KIS using the SPRF form as it was known problem at that time (few years ago)  ;)

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