Noritsu 2901 - 6906-0006

[kodakman7]

Hello all. We have been getting the above error intermittently for the past month or so. Sometimes multiple times in a day and other time, days between events.

Otherwise machine has been functioning. I read through an old post (the only one referencing this error) and Dave S mentioned the multi power supply below the image processing PCB. I had a look at that and referenced the service manual. Checked the voltages which was 5.30- so it was above the recommended 5.15 +- .05. 

I see that board has built in over-voltage protection, so hopefully that may be it.

Cooling fans are all functioning and clean.

Will need to wait at least a few days to see if that has resolved it, but just wondering if there is any other thoughts where this could be originating?

Many thanks in advance.

[kodakman7]

Update - the error recurred approx 45mins after re-start so Im back to the drawing board on this.....

[kodak_service]

Error index 0006 does not have a correct interpretation according to the service manual. It is possible that error 6906-0006 refers to the AFC/Scanner Control PCB. Reconnect the connectors on it and clean it from dust.

[Minilab service]

6906 - message, that minilab failed to change the mode.

Something wrong with extension. Regarding manual first digit can't be 0. It should be from 1 to 8 , or F.

Last extension digit regarding manual is not valid also.
Your last extension number ( 6 )  in 12 symbol binary code would be :
6 = 000000000110
The  bit 1 - AFC/scanner control PCB ( you have 1 in this position )
The bit 2 regarding manual is "not used" , but your error contains it ( you have 1 in this position ) .

First check AFC/scanner control PCB - power supply and ARCNET connections on both sides. On computer can change scanner ARCNET connection position ( swap with some other ARCNET pair ) .

On QSS29 manual It is real mess with this error. On manual bytes marked not standard. 12 symbol binary code should be from bit 0 to bit 11 . On manual they are marked from 1st bit to 12th bit .
Even second error example on manual is incorrect. There written, that extension A should be AFC/scanner and Printer error. Really it is different :
A = 000000001010
On manual see :
bit 1 - AFC/scanner control ( or 2nd bit as it is written on manual )
bit 3 - regarding manual is "Unused" ( or 4th bit as it is written on manual )
bit 6 - regarding manual is Printer
Regarding this manual AFC + Printer error hex code should be 42 ( not A )  :
42 = 000001000010 ( or 2nd bit and 7th bit as it is written on manual )

Error extension "A" is correct on QSS31 manual ( AFC and Printer error ) :
A = 000000001010
bit 1 - AFC/scanner control
bit 3 - Printer
Might be they took error example from there, or codes on QSS29 manual are incorrect.

Edited November 8 by Minilab service

[Dave S]

On the post you read the OP wrote down the wrong error code on the title, their error was actually 6909-0006 which is CPU was reset, so it's a different problem.

In my experience the Failed to change mode error is usually caused by poor/ slow ARCNET communication, try trimming the ends of the fibre optic cables with the special cutter.

[kodakman7]

Thanks for the advice/s.  Minilab service- I will try reconnecting plugs/leads etc. Dave S will have a look at the FO cables and ends. I dont have a special cutter- have just used a very sharp blade in the past and cut as square as possible. I will see if I can source a proper cutter but we are regional and reasonably remote from major centres so fingers crossed. Will perhaps blow out the terminals as well in case of dust ?  I guess there is no way (or is there a recommended) way to clean the FO sockets? Will work my way through all the ARCNET connections. I am unsure if this is related, but  I have noticed sometimes there is some noise on scanned images, especially in continuous tone ares,  and often images maybe even a bit soft......? I dont know wether that points to an area for closer examination? Many thanks.

[Minilab service]

Cutter can buy online. For example Omron E39-F4 and many other similar models.

It is possible to clean optical sensors. Can remove fixators ( black and white ) , blow, or clean carefully.

Noise on part of scanned image is different problem. This noise causes board, which is inside scanner unit. It is typical fault on older QSS29 models. Board is not sold separately, so can repair, or replace with other board ( removed from other QSS29 ) or replace whole scanner unit ( it can be from QSS29, or QSS30 ) . 
Only old type scanner unit has this fault ( noise on part of image ) . Newer scanner unit ( if was replaced on QSS29, or unit on QSS30 ) has not this problem.

[kodakman7]

I have just realised a typo in my original post- Error is actually 6909-0006    (not 6906!!!)  - I must have dyslexic or fat fingers. Apologies  !!

[kodakman7]

46 minutes ago, Minilab service said:

Cutter can buy online. For example Omron E39-F4 and many other similar models.

It is possible to clean optical sensors. Can remove fixators ( black and white ) , blow, or clean carefully.

Noise on part of scanned image is different problem. This noise causes board, which is inside scanner unit. It is typical fault on older QSS29 models. Board is not sold separately, so can repair, or replace with other board ( removed from other QSS29 ) or replace whole scanner unit ( it can be from QSS29, or QSS30 ) . 
Only old type scanner unit has this fault ( noise on part of image ) . Newer scanner unit ( if was replaced on QSS29, or unit on QSS30 ) has not this problem.

regarding the noise - okay then. Thats a problem. Quite annoying as I took 2x 2901 to the dump years ago and didnt remove the scanner section. My scanner hasnt been touched in 20 yrs so I guess I can assume it is the older type.

What is the part number for the board?

Do you know which part or component fails? How difficult is it to get fixed?  Ive just replaced a relay on the processor power board for the fan/heater etc so not afraid to do the job myself if it is 'reasonable'

Manythanks

Edited November 9 by kodakman7

[Minilab service]

Do not need scanner unit. Board is enough, but it should be from old type scanner unit and it should be working. Many times repaired boards on old type scanner units.

After scanner unit replacement need to make scanner alignments ( tilt swing, light axes, focus ) .

[kodakman7]

12 hours ago, Dave S said:

On the post you read the OP wrote down the wrong error code on the title, their error was actually 6909-0006 which is CPU was reset, so it's a different problem.

In my experience the Failed to change mode error is usually caused by poor/ slow ARCNET communication, try trimming the ends of the fibre optic cables with the special cutter.

Apologies  Dave- my bad. It was that error that the OP had ( 6909-0006) - just that my fingers let me down.

So to be clear - the error is 6909-0006   'CPU was reset'

[davidlam]

coin cell    on pc main board ???

[Minilab service]

7 hours ago, davidlam said:

coin cell    on pc main board ???

No. Battery is just to store BIOS settings. When computer works BIOS has power from power supply. Even without coin battery computer works and shouldn't be error. Just when computer power off and power supply doesn't work BIOS settings and time are lost ( when powered need set them again ) .

[Dave S]

10 hours ago, kodakman7 said:

Apologies  Dave- my bad. It was that error that the OP had ( 6909-0006) - just that my fingers let me down.

So to be clear - the error is 6909-0006   'CPU was reset'

So for error 6909-0006 CPU was Reset
It is suffix 0002 Printer exposure section and suffix 0004 Paper advance section combined to give the suffix 0006.

Check all the connections on the Printer control PCB, which is located to the left of magazine A behind the black panel.

It's probably best to always post the full error message together with the error number, it stops mistyped numbers from becoming an issue!

[kodakman7]

On 11/9/2023 at 10:08 AM, kodakman7 said:

regarding the noise - okay then. Thats a problem. Quite annoying as I took 2x 2901 to the dump years ago and didnt remove the scanner section. My scanner hasnt been touched in 20 yrs so I guess I can assume it is the older type.

What is the part number for the board?

Do you know which part or component fails? How difficult is it to get fixed?  Ive just replaced a relay on the processor power board for the fan/heater etc so not afraid to do the job myself if it is 'reasonable'

Manythanks

What is involved and fixed when your repair the existing (old) scanner board? Is this something you do? What is the cost?  Tks

[Minilab service]

Noritsu doesn't sell this board separately. Board  is just part of scanner unit ( Noritsu p.n. Z020110 ) . Board is on scanner unit ( under metal cover , connectors J/P61, J/P62, J/P63 and internal scanner unit connectors ) . On older model noise on part of image is typical fault. Scanner type can see on software version check menu. On line auto film carrier will be displayed A , or B . Need to repair scanner unit board, replace board ( can get removed from the same type scanner unit ) , or replace whole scanner unit ( can use A, or B type ) . Can be scanner unit from QSS28 ( from factory was older scanner unit ) , QSS29 ( from factory was A, and B scanner units ) , QSS30 ( used new scanner unit model ) , or QSS31 with SI-2600 scanner ( there new scanner unit ) . After scanner unit removal, or exchange need to make scanner adjustments ( tilt - swing, light axes, focus ) . Need adjustment charts to do it.
I can repair scanner board. Many times did it. Write private message if want to repair.

[kodakman7]

On 11/11/2023 at 7:38 PM, Minilab service said:

Noritsu doesn't sell this board separately. Board  is just part of scanner unit ( Noritsu p.n. Z020110 ) . Board is on scanner unit ( under metal cover , connectors J/P61, J/P62, J/P63 and internal scanner unit connectors ) . On older model noise on part of image is typical fault. Scanner type can see on software version check menu. On line auto film carrier will be displayed A , or B . Need to repair scanner unit board, replace board ( can get removed from the same type scanner unit ) , or replace whole scanner unit ( can use A, or B type ) . Can be scanner unit from QSS28 ( from factory was older scanner unit ) , QSS29 ( from factory was A, and B scanner units ) , QSS30 ( used new scanner unit model ) , or QSS31 with SI-2600 scanner ( there new scanner unit ) . After scanner unit removal, or exchange need to make scanner adjustments ( tilt - swing, light axes, focus ) . Need adjustment charts to do it.
I can repair scanner board. Many times did it. Write private message if want to repair.

I was looking a spare Printer Control PCB I had and discovered I did have a scanner from a 2901 that I parted out. Am not sure if its the A or B type however. Is there a way to tell from outside with full access or serial no.? Any different features visible on the PCB's  to identify which version? I dont have the adjustment charts, so if just the PCB is swapped out (if its the same version and can be done in situ without removal) do all the adjustments still need to be done? 

[kodakman7]

On 11/9/2023 at 8:36 PM, Dave S said:

So for error 6909-0006 CPU was Reset
It is suffix 0002 Printer exposure section and suffix 0004 Paper advance section combined to give the suffix 0006.

Check all the connections on the Printer control PCB, which is located to the left of magazine A behind the black panel.

It's probably best to always post the full error message together with the error number, it stops mistyped numbers from becoming an issue!

Thanks Dave- have checked and reseated all connections. Some days it errors/alarms repeatedly and then other days nothing at all. Quite weird and machine can be sitting idle and will error so its not like I can link it to any particular activity. I thought I had another board to swap out but cant locate it. I also tried reinstalling the board software on a day that it was error-ing repeatedly. It stopped for about 20mins after but then errored and a few times only, and then yesterday there was no errors or alerts at all. When looking for a changeover Printer control PCB I was certain I had, I discovered a scanner I hadnt realised I had.   Is the scanner linked into the exposure section?  Is there a likelihood that it could be a domino error due to something coming from the scanner which does seem to have a problem? (get scanner balance errors and lately noise on scanned images) What do the scanner adjustment charts look like? Are they able to be reproduced? Many thanks for your time and expertise..

[Minilab service]

I think not enough space to change board without removal. If you somehow manage replace board without scanner unit removal then do not need charts. 

Charts need to make scanner unit position adjustment and adjust focus. After scanner unit removal, or replacement you need to do it.

Board can change only if board is the same. Boards on old type and new type are different. If to look you see it.

Yes, scanner unit is CCD and all other. It is under film carrier. Here both models. Board is under metal cover where you can see LVDS connector.

 

Edited November 16 by Minilab service

[kodakman7]

3 hours ago, Minilab service said:

I think not enough space to change board without removal. If you somehow manage replace board without scanner unit removal then do not need charts. 

Charts need to make scanner unit position adjustment and adjust focus. After scanner unit removal, or replacement you need to do it.

Board can change only if board is the same. Boards on old type and new type are different. If to look you see it.

Yes, scanner unit is CCD and all other. It is under film carrier. Here both models. Board is under metal cover where you can see LVDS connector.

 

The good news is both my scanners are like the one on the left- so must be type B (from software).And the spare one islater ser no. and has been on the shelf for maybe 8 yrs from a working lab... You are correct- not enough room to remove and install in place. Is it possible to get the adjustment charts from somewhere do you know?

Thanks Russell

[Minilab service]

Do you have random noise only on part of image ( usually on the top ) ? 

Many engineers have charts. I have full set of them. I think you find chart locally.

The most important is 135 chart. On this lane scan the most. 135 chart can use to adjust scanner unit position using adjustment screws ( tilt swing and light axes ) . Also need it to make focus on 135 lane.

Z019786-01 Scanner adjustment chart (135)
Z019787-01 Scanner adjustment chart (120) 
Z019039-01 Scanner adjustment chart (240) . It is not necessary. Can enter focus values from 135 lane.
Z019668-01 Scanner adjustment chart (mount slides ) . Instead of it can use 135 chart ( just need to mount it ) 
Z019041-01 Scanner adjustment chart (110) . Need it if you have 110 film carrier.

Focus values can find without charts. Need change focus value, scan and look focus is better, or not. Have repeat many times until find correct value. 
Almost impossible to adjust scanner unit position without chart. When scanner unit is the same focus values will be similar.  If scanner unit other - need adjust focus for all lanes.

 

[Dave S]

20 hours ago, kodakman7 said:

Thanks Dave- have checked and reseated all connections. Some days it errors/alarms repeatedly and then other days nothing at all. Quite weird and machine can be sitting idle and will error so its not like I can link it to any particular activity. I thought I had another board to swap out but cant locate it. I also tried reinstalling the board software on a day that it was error-ing repeatedly. It stopped for about 20mins after but then errored and a few times only, and then yesterday there was no errors or alerts at all. When looking for a changeover Printer control PCB I was certain I had, I discovered a scanner I hadnt realised I had.   Is the scanner linked into the exposure section?  Is there a likelihood that it could be a domino error due to something coming from the scanner which does seem to have a problem? (get scanner balance errors and lately noise on scanned images) What do the scanner adjustment charts look like? Are they able to be reproduced? Many thanks for your time and expertise..

No the scanner is not linked to the exposure section, however the scanner is connected to the same power supply (Multi Power Supply ZT170-5FF) If you have one of these try replacing it, it could be generating noise on the voltage lines.

The scanner adjustment charts are laser etched thin metal plates, so there is no easy way to reproduce them.