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rowe ami black magic with display malfunction / carousel keeps spinning



 
 
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  #1  
Old August 22nd 12, 10:16 PM posted to alt.collecting.juke-boxes
Jack-J
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Posts: 1
Default rowe ami black magic with display malfunction / carousel keeps spinning

Hello everyone,

I am the proud owner of a rowe ami r-82 black magic (for about 4-5 months).

Via kleening I managed to 'repair' some small defaults. It has been playing perfectly, almost daily. However as of late, it won't stop spinning during start up.

Normaly the carousel would stop at #127 or #177, however it will skip these numbers on the display....and keep on spinning.

The display will show the numbers 280 through 210 and then will skip back to 200. This will happen twice. Then continue with 240 through 250 (twice) and will contue back at 280 and start all over again.

During start up, the scan led on the control unit keeps burning. Indicating that the memory unit and encoder are O.K. (service manual)

So is this a display 'problem' or a memory unit (301-07855) / encoder (601-07667) 'problem' as suggested by the troubleshooting charts of the service manual.

I have checked the wires and plugs and everything looks O.K. and no battery leakage on the memory unit board.

When manualy turning the cam and triggering the switches, the jukebox will play perfectly. But keeps on spinning as soon as the record is put back.

Any suggstions on how to get this great machine back in to action?

Kind regards,

Jack from the Netherlands
--
View on Narkive:
http://narkive.com/be5gDQpo
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  #2  
Old August 24th 12, 11:42 AM
Alan Hood Alan Hood is offline
Senior Member
 
First recorded activity by CollectingBanter: Dec 2009
Location: Sheffield UK
Posts: 187
Default

Quote:
Originally Posted by Jack-J View Post
Hello everyone,

I am the proud owner of a rowe ami r-82 black magic (for about 4-5 months).

Via kleening I managed to 'repair' some small defaults. It has been playing perfectly, almost daily. However as of late, it won't stop spinning during start up.

Normaly the carousel would stop at #127 or #177, however it will skip these numbers on the display....and keep on spinning.

The display will show the numbers 280 through 210 and then will skip back to 200. This will happen twice. Then continue with 240 through 250 (twice) and will contue back at 280 and start all over again.

During start up, the scan led on the control unit keeps burning. Indicating that the memory unit and encoder are O.K. (service manual)

So is this a display 'problem' or a memory unit (301-07855) / encoder (601-07667) 'problem' as suggested by the troubleshooting charts of the service manual.

I have checked the wires and plugs and everything looks O.K. and no battery leakage on the memory unit board.

When manualy turning the cam and triggering the switches, the jukebox will play perfectly. But keeps on spinning as soon as the record is put back.

Any suggstions on how to get this great machine back in to action?

Kind regards,

Jack from the Netherlands
--
View on Narkive:
http://narkive.com/be5gDQpo
Hello Jack,

I suggest that you send me the following boards out of your 1978 Rowe Ami R-82 Black Magic:-

Memory Unit 301-07855
Mechanism Control Unit 401-06905
Selector Logic 601-08060

I test/repair these as a set of boards.

If you require any further information please contact me, I deal with repairers and end users world wide.

Regards
Alan

Alan Hood (ami-man)
Games Unlimited & Datex Systems
Units 4 & 5 Lion Park
New Street
Halfway
Sheffield
S20 3GH

(44) 114 247 0242 phone
(44) 114 251 0727 fax
  #3  
Old August 26th 12, 11:57 AM posted to alt.collecting.juke-boxes
kreed
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Posts: 376
Default rowe ami black magic with display malfunction / carousel keeps spinning

On Thursday, August 23, 2012 7:16:23 AM UTC+10, Jack-J wrote:
Hello everyone,



I am the proud owner of a rowe ami r-82 black magic (for about 4-5 months).



Via kleening I managed to 'repair' some small defaults. It has been playing perfectly, almost daily. However as of late, it won't stop spinning during start up.



Normaly the carousel would stop at #127 or #177, however it will skip these numbers on the display....and keep on spinning.



The display will show the numbers 280 through 210 and then will skip back to 200. This will happen twice. Then continue with 240 through 250 (twice) and will contue back at 280 and start all over again.



During start up, the scan led on the control unit keeps burning. Indicating that the memory unit and encoder are O.K. (service manual)



So is this a display 'problem' or a memory unit (301-07855) / encoder (601-07667) 'problem' as suggested by the troubleshooting charts of the service manual.



I have checked the wires and plugs and everything looks O.K. and no battery leakage on the memory unit board.



When manualy turning the cam and triggering the switches, the jukebox will play perfectly. But keeps on spinning as soon as the record is put back.



Any suggstions on how to get this great machine back in to action?



Kind regards,



Jack from the Netherlands

--

View on Narkive:

http://narkive.com/be5gDQpo


The problem is caused by the lack of pull-up resistors on the memory unit for the encoder wheel connections. You solder a 10k resistor from the connector from EACH wiper of the encoder wheel (except the common) to the -17v rail. This fixes this problem in my experience. Please use anti-static precautions when doing this mod as the IC's used on these boards are extremely static sensitive compared to modern IC's.
  #4  
Old August 29th 12, 07:37 PM posted to alt.collecting.juke-boxes
Jack-J[_2_]
external usenet poster
 
Posts: 1
Default rowe ami black magic with display malfunction / carousel keeps spinning

Thank you,

Alan Hood and Kreed for your replies.

As I am not technical by nature, I will try to get the memory unit repaired here in the Netherlands.

If not succesfull, I will contact you (Alan) to see if you can help me fix this problem.

Kind regards,

Jack
--
View on Narkive:
http://narkive.com/be5gDQpo

  #5  
Old November 23rd 12, 11:39 PM posted to alt.collecting.juke-boxes
[email protected]
external usenet poster
 
Posts: 2
Default rowe ami black magic with display malfunction / carousel keeps spinning

Op woensdag 29 augustus 2012 20:42:51 UTC+2 schreef Jack-J het volgende:
Thank you,



Alan Hood and Kreed for your replies.



As I am not technical by nature, I will try to get the memory unit repaired here in the Netherlands.



If not succesfull, I will contact you (Alan) to see if you can help me fix this problem.



Kind regards,



Jack

--

View on Narkive:

http://narkive.com/be5gDQpo


  #6  
Old November 23rd 12, 11:42 PM posted to alt.collecting.juke-boxes
[email protected]
external usenet poster
 
Posts: 2
Default rowe ami black magic with display malfunction / carousel keeps spinning

Hello Jack,
Is your memory unit already repaired?
Did/Do you know what the problem is, because I have a simular problem.
If so, can you please post it here?
Thanks,
Harold

P.S.
I also live in The Netherlands.
  #7  
Old November 26th 12, 02:29 PM
Alan Hood Alan Hood is offline
Senior Member
 
First recorded activity by CollectingBanter: Dec 2009
Location: Sheffield UK
Posts: 187
Default

Quote:
Originally Posted by View Post
Hello Jack,
Is your memory unit already repaired?
Did/Do you know what the problem is, because I have a simular problem.
If so, can you please post it here?
Thanks,
Harold

P.S.
I also live in The Netherlands.
Hello Harold,

If you can not get anyone to repair your boards in the Netherlands bye all means contact me.

Regards
Alan

Alan Hood
ami-man
UK
  #8  
Old December 9th 12, 10:28 PM posted to alt.collecting.juke-boxes
Jack-J[_3_]
external usenet poster
 
Posts: 1
Default rowe ami black magic with display malfunction / carousel keeps spinning

Hallo Harrold,

My problem has not been solved (i've contacted alan to help me)

I do now know for sure that the problem lies within the memory unit.

I have bought several r-82 computer-units, including a memory unit.

Although my problem was solved, this 'new' unit had other problems insted.

I will keep you (and other viewers) posted on the results.

Should any of you be looking for parts/units for a r82? Please let me know.

I bought a box full of several untested units for the r-82.

Kind regards

  #9  
Old December 11th 12, 04:33 PM
Alan Hood Alan Hood is offline
Senior Member
 
First recorded activity by CollectingBanter: Dec 2009
Location: Sheffield UK
Posts: 187
Default

Quote:
Originally Posted by Jack-J[_3_] View Post
Hallo Harrold,

My problem has not been solved (i've contacted alan to help me)

I do now know for sure that the problem lies within the memory unit.

I have bought several r-82 computer-units, including a memory unit.

Although my problem was solved, this 'new' unit had other problems insted.

I will keep you (and other viewers) posted on the results.

Should any of you be looking for parts/units for a r82? Please let me know.

I bought a box full of several untested units for the r-82.

Kind regards
Hello Jack-J,

Of course these parts can be used on the following jukeboxes that have the Rowe Ami 1200 mechanism:-

R-80S
R-81
R-82
R-83
RI-2
CTI-1SC

There are slight differences such as the RI-2 uses a smaller display but for test purposes any of the units can be used.

I look forward to receiving your parts for repair.

Regards
Alan

Alan Hood
ami-man
UK
 




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