Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
Pay someone else to do it for you. On Wednesday, April 16, 2025 at 11:25:57 AM EDT, Jukebox Repairman via Jukebox-list jukebox-list@lists.netlojix.com wrote:
Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned out and replaced.
Back when these machines were new the factory recommended a mechanism overhaul/rebuild every six months for busy locations...
John :-#)#
And we are back to the old question, do you lubricate the record stack and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray? I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned out and replaced.
Back when these machines were new the factory recommended a mechanism overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
I use 20W non-detergent oil, and have used grease as well - both seem to work just fine.
I'd probably try some Super-Grease - synthetic now, and the results in small motor gearboxes has been good.
No lube means more wear - metal on metal must have some sort of lube!
Watch the factory video for the 1100 where they are slapping the stack together @ 34 minutes in. I suspect they just had some 20W wetted metal trays and discs. Note this video is from 1948, not the 50s as the person carelessly listed it.
www.youtube.com
Wurlitzer Factory <#>
Wurlitzer factory tour in the '50s.
🔗 https://www.youtube.com/watch?v=rHKmcxhr0qg https://www.youtube.com/watch?v=rHKmcxhr0qg
John :-#)#
On 2025-04-16 2:15 p.m., M De Simone wrote:
And we are back to the old question, do you lubricate the record stack and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray? I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-listjukebox-list@lists.netlojix.com wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned out and replaced.
Back when these machines were new the factory recommended a mechanism overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list --jukebox-list@lists.netlojix.com To unsubscribe send an email tojukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives:http://jukebox.markmail.org/
Don't do like me the first time I pulled a stack apart... remove every tray spring before starting!
I did one on the road in a house, not fun at all. That grease or oil turns into some weird looking green stuff and it doesn't come clean easy. I can't picture that on later ones. Has anyone else seen the green glue? Are they all like that if never cleaned/lubed since it left the factory?
Tony
On 4/16/2025 5:15 PM, M De Simone via Jukebox-list wrote:
And we are back to the old question, do you lubricate the record stack and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray? I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays without disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned out and replaced.
Back when these machines were new the factory recommended a mechanism overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Tony, i didnt want to do it onsite for fear of the mess. Roughly how many hours did you have in it if you recall?
Rick
On Wed, Apr 16, 2025 at 10:31 PM Tony Miklos via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Don't do like me the first time I pulled a stack apart... remove every tray spring before starting!
I did one on the road in a house, not fun at all. That grease or oil turns into some weird looking green stuff and it doesn't come clean easy. I can't picture that on later ones. Has anyone else seen the green glue? Are they all like that if never cleaned/lubed since it left the factory?
Tony
On 4/16/2025 5:15 PM, M De Simone via Jukebox-list wrote:
And we are back to the old question, do you lubricate the record stack
and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray?
I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list <
jukebox-list@lists.netlojix.com> wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays
without
disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned
out and replaced.
Back when these machines were new the factory recommended a mechanism
overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
-- Tony Miklos Tony's Jukebox Repair
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Thanks for the tips on lube and disassembly. I just purchased some Superlube synthetic grease, perhaps I’ll apply a very thin coat when I’m re- assembling. Cheers, Mauro
Sent from my iPhone
On Apr 17, 2025, at 10:48 AM, Jukebox Repairman via Jukebox-list jukebox-list@lists.netlojix.com wrote:
Tony, i didnt want to do it onsite for fear of the mess. Roughly how many hours did you have in it if you recall?
Rick
On Wed, Apr 16, 2025 at 10:31 PM Tony Miklos via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Don't do like me the first time I pulled a stack apart... remove every tray spring before starting!
I did one on the road in a house, not fun at all. That grease or oil turns into some weird looking green stuff and it doesn't come clean easy. I can't picture that on later ones. Has anyone else seen the green glue? Are they all like that if never cleaned/lubed since it left the factory?
Tony
On 4/16/2025 5:15 PM, M De Simone via Jukebox-list wrote: And we are back to the old question, do you lubricate the record stack
and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray?
I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list <
jukebox-list@lists.netlojix.com> wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays
without
disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned
out and replaced.
Back when these machines were new the factory recommended a mechanism
overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
-- Tony Miklos Tony's Jukebox Repair
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
It is a mess. I really don't recall how long but I'm fairly certain it was less than 4 hours. That is like a lifetime onsite. It was my first one. I think John R does a lot of them, see if he chimes in here again.
If you do decide to do it onsite, I'd bring something to lay parts down on and to keep grease from spreading. Personally, I think the next time I'd take it to the shop. There are probably a few other parts gummed up. I've only done maybe 2 or 3 more but that was in the shop and I probably did a better job.
I once bought a *restored* 1015 for a customer, from one of the biggest names in their restoration at the time (25-30 years ago). It had a crap load of defects and I ended up returning it laying down in my van. The point of this is to say that it *leaked* something like red transmission fluid out of the tray area, a lot of it! We were not on friendly terms so I didn't ask him what it was.
Tony
On 4/17/2025 10:47 AM, Jukebox Repairman via Jukebox-list wrote:
Tony, i didnt want to do it onsite for fear of the mess. Roughly how many hours did you have in it if you recall?
Rick
On Wed, Apr 16, 2025 at 10:31 PM Tony Miklos via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Don't do like me the first time I pulled a stack apart... remove every tray spring before starting!
I did one on the road in a house, not fun at all. That grease or oil turns into some weird looking green stuff and it doesn't come clean easy. I can't picture that on later ones. Has anyone else seen the green glue? Are they all like that if never cleaned/lubed since it left the factory?
Tony
On 4/16/2025 5:15 PM, M De Simone via Jukebox-list wrote:
And we are back to the old question, do you lubricate the record stack
and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray?
I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list <
jukebox-list@lists.netlojix.com> wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays
without
disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned
out and replaced.
Back when these machines were new the factory recommended a mechanism
overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
-- Tony Miklos Tony's Jukebox Repair
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
On 2025-04-17 8:35 a.m., Tony Miklos via Jukebox-list wrote:
It is a mess. I really don't recall how long but I'm fairly certain it was less than 4 hours. That is like a lifetime onsite. It was my first one. I think John R does a lot of them, see if he chimes in here again.
3 to 4 hours start to finish sounds reasonable. We pull the mechanism and set it on the bench on milk crates or similar supports. Having full access makes it a faster job.
The problem is when doing the trays you are also checking the rest of the mech and then worn bushings typically show up...at which point we are talking full rebuild in the shop.
We did drill guide holes in our large bench drill press tray for holding the 24 mech frames in place for drilling out the old bushing (or if never bushed the frame) so it could accept our new bronze sintered bushings that last and take oil very well. Tap them in carefully, file smooth, use a 1/2" long reamer to clean up the bushing and check alignment with a 1 foot piece of 1/2 polished steel rod before starting to put back together. Yeah, we need to write it up and take photos - our next overhaul that is the plan!
https://flippers.com/catalog_oc/index.php?route=product/search&search=bu...
If you do decide to do it onsite, I'd bring something to lay parts down on and to keep grease from spreading. Personally, I think the next time I'd take it to the shop. There are probably a few other parts gummed up. I've only done maybe 2 or 3 more but that was in the shop and I probably did a better job.
Use of a sturdy (!) card table and grease cloth is minimum. Lots of shop rags.
I once bought a *restored* 1015 for a customer, from one of the biggest names in their restoration at the time (25-30 years ago). It had a crap load of defects and I ended up returning it laying down in my van. The point of this is to say that it *leaked* something like red transmission fluid out of the tray area, a lot of it! We were not on friendly terms so I didn't ask him what it was.
Might have been tranny fluid, no idea why anyone would use that though...
Tony
John ;-#)#
On 4/17/2025 10:47 AM, Jukebox Repairman via Jukebox-list wrote:
Tony, i didnt want to do it onsite for fear of the mess. Roughly how many hours did you have in it if you recall?
Rick
On Wed, Apr 16, 2025 at 10:31 PM Tony Miklos via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Don't do like me the first time I pulled a stack apart... remove every tray spring before starting!
I did one on the road in a house, not fun at all. That grease or oil turns into some weird looking green stuff and it doesn't come clean easy. I can't picture that on later ones. Has anyone else seen the green glue? Are they all like that if never cleaned/lubed since it left the factory?
Tony
On 4/16/2025 5:15 PM, M De Simone via Jukebox-list wrote:
And we are back to the old question, do you lubricate the record stack
and if so with what type of lubricant? Or do you clean and assemble it dry? Perhaps some silicone spray?
I’m gearing up to do an 1100 and still not 100% sure which way to go.
Mauro
Sent from my iPhone
On Apr 16, 2025, at 4:07 PM, John Robertson via Jukebox-list <
jukebox-list@lists.netlojix.com> wrote:
On 2025-04-16 8:25 a.m., Jukebox Repairman via Jukebox-list wrote:
Has anyone come up with an easy way to free up sticky record trays
without
disassembling the stack assembly?
I'm dealing with a stubborn one that's been sitting idle for ten years
Regards, Rick
No short cut for this. The lube has dried up and needs to be cleaned
out and replaced.
Back when these machines were new the factory recommended a mechanism
overhaul/rebuild every six months for busy locations...
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
Hi Tony Milos, About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that? I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program. Thanks in advance for any insight, Norman.
On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
On 2025-04-17 4:46 p.m., Tony Miklos via Jukebox-list wrote:
On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
What is the problem people are running into with the ES-II computers? I can program the 2732 EPROM easily enough...I think I have a test bed as well for the CPU...maybe.
John :-#)#
On 4/17/2025 8:18 PM, John Robertson via Jukebox-list wrote:
On 2025-04-17 4:46 p.m., Tony Miklos via Jukebox-list wrote:
On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
What is the problem people are running into with the ES-II computers? I can program the 2732 EPROM easily enough...I think I have a test bed as well for the CPU...maybe.
John :-#)#
I forget the IC location and part number, but it's not an EPROM. I take it as if it has some kind of program, maybe a key of sorts, and an internal battery holds the memory and now they are all dying off. I think I have a good one, well if it's still good... I'll try to get the part number. The blank IC's are still found here and there but who knows how old they are and when their internal battery will quit.
There is a work around for some of these battery backed memory ICs.
You can add an external changeable battery to keep it going.
Don Resor
Sent from someone's iPhone
On Apr 17, 2025, at 7:24 PM, Tony Miklos via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 4/17/2025 8:18 PM, John Robertson via Jukebox-list wrote:
On 2025-04-17 4:46 p.m., Tony Miklos via Jukebox-list wrote: On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
What is the problem people are running into with the ES-II computers? I can program the 2732 EPROM easily enough...I think I have a test bed as well for the CPU...maybe. John :-#)#
I forget the IC location and part number, but it's not an EPROM. I take it as if it has some kind of program, maybe a key of sorts, and an internal battery holds the memory and now they are all dying off. I think I have a good one, well if it's still good... I'll try to get the part number. The blank IC's are still found here and there but who knows how old they are and when their internal battery will quit.
Tony Miklos Tony's Jukebox Repair
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed. According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully). Norman.
I bought one from them and they told me it was the last one and they had no idea how to program them. I'll have to read the manual better. I bought new ones that weren't programed and it acted the same as with a bad one. I think it scans once but doesn't pick up a record.
If you happen to find that in the manual, I'd love to know where.
On 4/18/2025 6:17 AM, NORMAN MACRAE via Jukebox-list wrote:
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed.
According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully).
Norman.
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
According to the datasheet I pulled down from alldatasheets.com this is a rewriteable prom.
It specifies the memory retention is 10 years. If it doesn't have a battery, how can a time period of retention be specified, unless that is the supposed "wear out" period?
For programming I purchased a USB connectable TL866 unit. I do not know if it is capable of 31vdc though.
This unit has been updated several times since I bought mine.
http://autoelectric.cn/EN/TL866_main.html
I found UTsource has a few in used condition:
https://www.utsource.net/sch/ER1400.html
$1.84each minimum 2.
There also for sale on eBay in the $5+ range.
https://www.ebay.com/sch/i.html?_nkw=ER1400+ic&_sacat=0&_from=R40&am...
Here is some general info I found. You'll need to translate from Dutch to English, but here is the pertinent info:
https://www.circuitsonline.net/forum/view/162626
I have here a REVOX Tuner B261 (c. 1982) which uses a Mask Programmed Philips uProcessor (type MAB 8440 P) icm an antique "kind of EEPROM" (Yype GI ER1400), seesheet, to tune to FM transmitters and store all kinds of data from the stations "permanent" in an Electronic Memory.
These CMOS primordial memory ER1400 chips are apparently described with 31V DC. This kind of memory was apparently called an EAROM (Electrically Alterable Read Only Memory): only a thousand times can be written to a memory site and electrically they were not really reliable over the years...
Don Resor
-----Original Message----- From: NORMAN MACRAE via Jukebox-list jukebox-list@lists.netlojix.com Sent: Friday, April 18, 2025 3:18 AM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: NORMAN MACRAE nmacrae23@btinternet.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed.
According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully).
Norman.
_______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
The Timekeeper IC’s are available through Mouser.
On Fri, Apr 18, 2025 at 10:37 AM organlists1--- via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
According to the datasheet I pulled down from alldatasheets.com this is a rewriteable prom.
It specifies the memory retention is 10 years. If it doesn't have a battery, how can a time period of retention be specified, unless that is the supposed "wear out" period?
For programming I purchased a USB connectable TL866 unit. I do not know if it is capable of 31vdc though.
This unit has been updated several times since I bought mine.
http://autoelectric.cn/EN/TL866_main.html
I found UTsource has a few in used condition:
https://www.utsource.net/sch/ER1400.html
$1.84each minimum 2.
There also for sale on eBay in the $5+ range.
https://www.ebay.com/sch/i.html?_nkw=ER1400+ic&_sacat=0&_from=R40&am...
Here is some general info I found. You'll need to translate from Dutch to English, but here is the pertinent info:
https://www.circuitsonline.net/forum/view/162626
I have here a REVOX Tuner B261 (c. 1982) which uses a Mask Programmed Philips uProcessor (type MAB 8440 P) icm an antique "kind of EEPROM" (Yype GI ER1400), seesheet, to tune to FM transmitters and store all kinds of data from the stations "permanent" in an Electronic Memory.
These CMOS primordial memory ER1400 chips are apparently described with 31V DC. This kind of memory was apparently called an EAROM (Electrically Alterable Read Only Memory): only a thousand times can be written to a memory site and electrically they were not really reliable over the years...
Don Resor
-----Original Message----- From: NORMAN MACRAE via Jukebox-list jukebox-list@lists.netlojix.com Sent: Friday, April 18, 2025 3:18 AM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: NORMAN MACRAE nmacrae23@btinternet.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed.
According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully).
Norman.
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Don,
I missed this device on the ES2 schematics, thanks for getting the background information compiled below - that is a HUGE help!
On 2025-04-18 7:37 a.m., organists1--- via Jukebox-list wrote:
According to the datasheet I pulled down from alldatasheets.com this is a rewriteable prom.
Well, as it is an EAROM - Electrically Erasable Read Only Memory - this runs in MOS technology, so it requires negative voltages relative to ground for programming and reading.
It specifies the memory retention is 10 years. If it doesn't have a battery, how can a time period of retention be specified, unless that is the supposed "wear out" period?
That is the minimum length of time the charge was expected to last on internal gates.
For programming I purchased a USB connectable TL866 unit. I do not know if it is capable of 31vdc though.
This device (TL866) does NOT like the ER1400 as able to program. The ER1400 is very old tech, no modern burner can handle it...
This unit has been updated several times since I bought mine.
http://autoelectric.cn/EN/TL866_main.html
I found UTsource has a few in used condition:
https://www.utsource.net/sch/ER1400.html
$1.84each minimum 2.
Good price!
There also for sale on eBay in the $5+ range.
https://www.ebay.com/sch/i.html?_nkw=ER1400+ic&_sacat=0&_from=R40&am...
Here is some general info I found. You'll need to translate from Dutch to English, but here is the pertinent info:
https://www.circuitsonline.net/forum/view/162626
I have here a REVOX Tuner B261 (c. 1982) which uses a Mask Programmed Philips uProcessor (type MAB 8440 P) icm an antique "kind of EEPROM" (Yype GI ER1400), seesheet, to tune to FM transmitters and store all kinds of data from the stations "permanent" in an Electronic Memory.
These CMOS primordial memory ER1400 chips are apparently described with 31V DC.
NEGATIVE 31VDC, that is the problem with modern programmers, they are all Positive to Ground based...
The trick is programming. The data sheets provides the process, and it is possible that the arlabs.com programmer can be modified to handle this device.
I'll look into it as I have a number of ancient programmers including the arlabs one.
John :-#)#
This kind of memory was apparently called an EAROM (Electrically Alterable Read Only Memory): only a thousand times can be written to a memory site and electrically they were not really reliable over the years...
Don Resor
-----Original Message----- From: NORMAN MACRAE via Jukebox-list jukebox-list@lists.netlojix.com Sent: Friday, April 18, 2025 3:18 AM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: NORMAN MACRAE nmacrae23@btinternet.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed.
According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully).
Norman.
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Andromeda Research Labs does support this ER1400 device:
www.arlabs.com
EPROM Programmer Device Support <#>
Device support includes EPROMs, FLASH EPROMs, EEPROMs, SERIAL EEPROMs, SPI FLASH EPROMs, FRAMs, SERIAL FRAMs, BIPOLAR PROMs and MICROCONTROLLERS.
🔗 https://www.arlabs.com/device.html https://www.arlabs.com/device.html
and with these adapters - the In-Circuit reader looks particularly interesting:
www.arlabs.com
EPROM and DEVICE Programmer Technology Family Adapters and Converters <#>
Programmer adapters allow the EPROM+ system to support additional parts and packages including eeproms, serial eeproms, flash eproms and microcontrollers.
🔗 https://www.arlabs.com/adapters.html#ASEREE2_adapter https://www.arlabs.com/adapters.html#ASEREE2_adapter
John :-#)#
On 2025-04-18 8:25 a.m., John Robertson via Jukebox-list wrote:
Don,
I missed this device on the ES2 schematics, thanks for getting the background information compiled below - that is a HUGE help!
On 2025-04-18 7:37 a.m., organists1--- via Jukebox-list wrote:
According to the datasheet I pulled down from alldatasheets.com this is a rewriteable prom.
Well, as it is an EAROM - Electrically Erasable Read Only Memory - this runs in MOS technology, so it requires negative voltages relative to ground for programming and reading.
It specifies the memory retention is 10 years. If it doesn't have a battery, how can a time period of retention be specified, unless that is the supposed "wear out" period?
That is the minimum length of time the charge was expected to last on internal gates.
For programming I purchased a USB connectable TL866 unit. I do not know if it is capable of 31vdc though.
This device (TL866) does NOT like the ER1400 as able to program. The ER1400 is very old tech, no modern burner can handle it...
This unit has been updated several times since I bought mine.
http://autoelectric.cn/EN/TL866_main.html
I found UTsource has a few in used condition:
https://www.utsource.net/sch/ER1400.html
$1.84each minimum 2.
Good price!
There also for sale on eBay in the $5+ range.
https://www.ebay.com/sch/i.html?_nkw=ER1400+ic&_sacat=0&_from=R40&am...
Here is some general info I found. You'll need to translate from Dutch to English, but here is the pertinent info:
https://www.circuitsonline.net/forum/view/162626
I have here a REVOX Tuner B261 (c. 1982) which uses a Mask Programmed Philips uProcessor (type MAB 8440 P) icm an antique "kind of EEPROM" (Yype GI ER1400), seesheet, to tune to FM transmitters and store all kinds of data from the stations "permanent" in an Electronic Memory.
These CMOS primordial memory ER1400 chips are apparently described with 31V DC.
NEGATIVE 31VDC, that is the problem with modern programmers, they are all Positive to Ground based...
The trick is programming. The data sheets provides the process, and it is possible that the arlabs.com programmer can be modified to handle this device.
I'll look into it as I have a number of ancient programmers including the arlabs one.
John :-#)#
This kind of memory was apparently called an EAROM (Electrically Alterable Read Only Memory): only a thousand times can be written to a memory site and electrically they were not really reliable over the years...
Don Resor
-----Original Message----- From: NORMAN MACRAE via Jukebox-list jukebox-list@lists.netlojix.com Sent: Friday, April 18, 2025 3:18 AM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: NORMAN MACRAE nmacrae23@btinternet.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed. According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully). Norman. _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
(edited to fit under 20KB in size - active URL links are space taker-uppers)
Andromeda Research Labs does support this ER1400 device:
https://www.arlabs.com/device.html
and with these adapters - the In-Circuit reader looks particularly interesting:
https://www.arlabs.com/adapters.html#ASEREE2_adapter
John :-#)#
On 2025-04-18 8:25 a.m., John Robertson via Jukebox-list wrote:
Don,
I missed this device on the ES2 schematics, thanks for getting the background information compiled below - that is a HUGE help!
On 2025-04-18 7:37 a.m., organists1--- via Jukebox-list wrote:
According to the datasheet I pulled down from alldatasheets.com this is a rewriteable prom.
Well, as it is an EAROM - Electrically Erasable Read Only Memory - this runs in MOS technology, so it requires negative voltages relative to ground for programming and reading.
It specifies the memory retention is 10 years. If it doesn't have a battery, how can a time period of retention be specified, unless that is the supposed "wear out" period?
That is the minimum length of time the charge was expected to last on internal gates.
For programming I purchased a USB connectable TL866 unit. I do not know if it is capable of 31vdc though.
This device (TL866) does NOT like the ER1400 as able to program. The ER1400 is very old tech, no modern burner can handle it...
This unit has been updated several times since I bought mine.
http://autoelectric.cn/EN/TL866_main.html
I found UTsource has a few in used condition:
https://www.utsource.net/sch/ER1400.html
$1.84each minimum 2.
Good price!
There also for sale on eBay in the $5+ range.
https://www.ebay.com/sch/i.html?_nkw=ER1400+ic&_sacat=0&_from=R40&am...
Here is some general info I found. You'll need to translate from Dutch to English, but here is the pertinent info:
https://www.circuitsonline.net/forum/view/162626
I have here a REVOX Tuner B261 (c. 1982) which uses a Mask Programmed Philips uProcessor (type MAB 8440 P) icm an antique "kind of EEPROM" (Yype GI ER1400), seesheet, to tune to FM transmitters and store all kinds of data from the stations "permanent" in an Electronic Memory.
These CMOS primordial memory ER1400 chips are apparently described with 31V DC.
NEGATIVE 31VDC, that is the problem with modern programmers, they are all Positive to Ground based...
The trick is programming. The data sheets provides the process, and it is possible that the arlabs.com programmer can be modified to handle this device.
I'll look into it as I have a number of ancient programmers including the arlabs one.
John :-#)#
This kind of memory was apparently called an EAROM (Electrically Alterable Read Only Memory): only a thousand times can be written to a memory site and electrically they were not really reliable over the years...
Don Resor
-----Original Message----- From: NORMAN MACRAE via Jukebox-list jukebox-list@lists.netlojix.com Sent: Friday, April 18, 2025 3:18 AM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: NORMAN MACRAE nmacrae23@btinternet.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
It's an ER1400. I have a datasheet, there is no internal battery on that one. The Stamanns sell them and there is a note on their website saying to program them as detailed in the manuals. I didn't get it there though, their shop is currently closed. According to the NSM manuals, there is a default code of all zeroes to enter the program and a one-off option to change the code which MUST then be remembered. I had no idea whether the code had been changed which is why I went the route of replacing the ROM when I couldn't access the program. I have successfully altered the program on these in the past but I have never needed to do one from scratch. Typically the problem I was expecting was a location with a corrupt entry. There is actually very little wrong with this ES2 jukebox - if I attempt to access the program and abort it (ie toggle the cabinet switch), it then it will work fine until power off. There is a guy here in the UK who only does NSMs, I have messaged him so I will let you know what he responds. It is Easter weekend so it will likey be next week (hopefully). Norman.
Hi Tony, I have very much a mish mash of NSM documentation but here is a copy of the ES/ES2 programming guide https://www.dropbox.com/scl/fi/w3qo9mq30ypmw398g94l4/ES___ES2_PROGRAMMING_GU... https://www.dropbox.com/scl/fi/w3qo9mq30ypmw398g94l4/ES___ES2_PROGRAMMING_GUIDE.pdf?rlkey=xp47yvi8xa1evdewgouocf0ez&st=r8xotzl9&dl=0 With regard to scanning once and not picking up, that usually indicates an opto problem (ie clean it!). You can also see it pulsing at the CCU with logic probe. Norman. ------ Original Message ------ From: jukebox-list@lists.netlojix.com To: jukebox-list@lists.netlojix.com Cc: tonysjukeboxrepair@gmail.com Sent: Friday, April 18th 2025, 14:56 Subject: [Jukebox-list] Re: NSM EA ROM Programming I bought one from them and they told me it was the last one and they had no idea how to program them. I'll have to read the manual better. I bought new ones that weren't programed and it acted the same as with a bad one. I think it scans once but doesn't pick up a record. If you happen to find that in the manual, I'd love to know where. On 4/18/2025 6:17 AM, NORMAN MACRAE via Jukebox-list wrote: > > It's an ER1400. I have a datasheet, there is no internal battery on > that one. The Stamanns sell them and there is a note on their website > saying to program them as detailed in the manuals. I didn't get it > there though, their shop is currently closed. > > According to the NSM manuals, there is a default code of all zeroes to > enter the program and a one-off option to change the code which MUST > then be remembered. I had no idea whether the code had been changed > which is why I went the route of replacing the ROM when I couldn't > access the program. I have successfully altered the program on these in > the past but I have never needed to do one from scratch. Typically the > problem I was expecting was a location with a corrupt entry. > There is actually very little wrong with this ES2 jukebox - if I attempt > to access the program and abort it (ie toggle the cabinet switch), it > then it will work fine until power off. There is a guy here in the UK > who only does NSMs, I have messaged him so I will let you know what he > responds. It is Easter weekend so it will likey be next week (hopefully). > > Norman. > > _______________________________________________ > Jukebox-list mailing list -- jukebox-list@lists.netlojix.com > To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > Searchable Archives: http://jukebox.markmail.org/ -- Tony Miklos Tony's Jukebox Repair _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
I am pretty sure the scan-no select was the symptom but I'm not positive. I do have a good IC and a bad one, and a few new (new old stock?) and have swapped them and only the one works. I can check sometime, right now it's difficult to get to the "test machine".
Tony
On 4/18/2025 11:38 AM, NORMAN MACRAE wrote:
Hi Tony,
I have very much a mish mash of NSM documentation but here is a copy of the ES/ES2 programming guide
https://www.dropbox.com/scl/fi/w3qo9mq30ypmw398g94l4/ES___ES2_PROGRAMMING_GU... https://www.dropbox.com/scl/fi/w3qo9mq30ypmw398g94l4/ES___ES2_PROGRAMMING_GUIDE.pdf?rlkey=xp47yvi8xa1evdewgouocf0ez&st=r8xotzl9&dl=0
With regard to scanning once and not picking up, that usually indicates an opto problem (ie clean it!). You can also see it pulsing at the CCU with logic probe.
Norman.
------ Original Message ------ From: jukebox-list@lists.netlojix.com To: jukebox-list@lists.netlojix.com Cc: tonysjukeboxrepair@gmail.com Sent: Friday, April 18th 2025, 14:56 Subject: [Jukebox-list] Re: NSM EA ROM Programming I bought one from them and they told me it was the last one and they had no idea how to program them. I'll have to read the manual better. I bought new ones that weren't programed and it acted the same as with a bad one. I think it scans once but doesn't pick up a record. If you happen to find that in the manual, I'd love to know where. On 4/18/2025 6:17 AM, NORMAN MACRAE via Jukebox-list wrote: > > It's an ER1400. I have a datasheet, there is no internal battery on > that one. The Stamanns sell them and there is a note on their website > saying to program them as detailed in the manuals. I didn't get it > there though, their shop is currently closed. > > According to the NSM manuals, there is a default code of all zeroes to > enter the program and a one-off option to change the code which MUST > then be remembered. I had no idea whether the code had been changed > which is why I went the route of replacing the ROM when I couldn't > access the program. I have successfully altered the program on these in > the past but I have never needed to do one from scratch. Typically the > problem I was expecting was a location with a corrupt entry. > There is actually very little wrong with this ES2 jukebox - if I attempt > to access the program and abort it (ie toggle the cabinet switch), it > then it will work fine until power off. There is a guy here in the UK > who only does NSMs, I have messaged him so I will let you know what he > responds. It is Easter weekend so it will likey be next week (hopefully). > > Norman. > > _______________________________________________ > Jukebox-list mailing list -- jukebox-list@lists.netlojix.com > To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > Searchable Archives: http://jukebox.markmail.org/ -- Tony Miklos Tony's Jukebox Repair _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
What is the chip make/model? I have a chip programmer (an old Needham's unit) and was able to read / save / and program ROM chips of specific sizes. I may have spare chips, depending on what is being used. I may also have an older IR unit, but I'm not as familiar with that one.
Andrew Burkhart
-----Original Message----- From: Tony Miklos via Jukebox-list jukebox-list@lists.netlojix.com Sent: Thursday, April 17, 2025 4:46 PM To: NORMAN MACRAE nmacrae23@btinternet.com; Jukebox mailing list jukebox-list@lists.netlojix.com Cc: Tony Miklos tonysjukeboxrepair@gmail.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
The device is a EEPROM, made by General Instruments, part number ER1400. This is a MOS device and runs at -35VDC (+/-8%) relative to the chip's common. Not your normal Eprom!
Serial RAM...not a ROM or PROM.
You can find the data sheet online under the part number easily enough!
John :-#)#
On 2025-04-18 11:29 a.m., Andrew Burkhart via Jukebox-list wrote:
What is the chip make/model? I have a chip programmer (an old Needham's unit) and was able to read / save / and program ROM chips of specific sizes. I may have spare chips, depending on what is being used. I may also have an older IR unit, but I'm not as familiar with that one.
Andrew Burkhart
-----Original Message----- From: Tony Miklos via Jukebox-list jukebox-list@lists.netlojix.com Sent: Thursday, April 17, 2025 4:46 PM To: NORMAN MACRAE nmacrae23@btinternet.com; Jukebox mailing list jukebox-list@lists.netlojix.com Cc: Tony Miklos tonysjukeboxrepair@gmail.com Subject: [Jukebox-list] Re: NSM EA ROM Programming
On 4/17/2025 3:17 PM, NORMAN MACRAE wrote:
Hi Tony Milos,
About twenty months ago you posted about an NSM ES2 where you were having difficulty programming the EA ROM - did you ever resolve that?
I am working on a City2 where I cannot access the program. I thought it may have been set with a secret code so I got another EA ROM but I still cannot access the program.
Thanks in advance for any insight, Norman.
I never found anyone who programs them. I believe they have an internal battery and even if they are NOS, they are due to fail at any time. If there is a big enough call for it, someone might figure out how to program a newer IC and make it work, but it doesn't look like anyone has much interest in the task. I'm turning down jobs on them now. They are turning into big paper weights. Good luck, let me know if you ever find a solution.
jukebox-list@lists.netlojix.com
-
aburkhart＠unilect.com -
Don R -
JIM & LAURIE DIRKSEN -
John Robertson -
Jukebox Repairman -
M De Simone -
NORMAN MACRAE -
organlists1＠sonic.net
-
Tony Miklos