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#28078 - 10/30/19 06:58 PM OTIS LRV COMPUTER CHIPS  
Joined: May 2019
Posts: 5
Elevator_Logic Offline
stranger
Elevator_Logic  Offline
stranger

Joined: May 2019
Posts: 5
USA
Otis Removed a hydraulic unit from service years ago ( Removed Power Feed,Sealed Doors, Removed pipe ect). We were hired to put it back in service and have found that Otis Stole the LRV microprocessor from behind the COP. We have other LRV boards but we need the Computer Chips that are used on the microprocessor.. Is there any work around for this?

#28080 - 10/30/19 08:24 PM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: Dec 2015
Posts: 944
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 944
Local 18
Not that this is what you want to hear but.. I think an elevator in that condition should be mod or nothing.

#28083 - 10/30/19 09:28 PM Re: OTIS LRV COMPUTER CHIPS [Re: Indirtwetrust]  
Joined: Jul 2013
Posts: 173
NewMech Offline
member
NewMech  Offline
member

Joined: Jul 2013
Posts: 173
Agreed

#28089 - 10/31/19 02:49 AM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: Jan 2014
Posts: 627
Rolly Offline
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Rolly  Offline
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Joined: Jan 2014
Posts: 627
PM me a picture of the board, I should have software and chips for it. The first LRV used a 8749 Micro 40 pin with the software programmed to the chip. I have those too.

Last edited by Rolly; 10/31/19 02:57 AM.
#28197 - 11/12/19 02:09 PM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: May 2019
Posts: 5
Elevator_Logic Offline
stranger
Elevator_Logic  Offline
stranger

Joined: May 2019
Posts: 5
USA
Rolly,

Hey man I am in desperate need for the chips needed for a LRV. I have attached some pictures of the LRV board. Let me know if you have any ideas!

https://imgur.com/kpbz6Om
https://imgur.com/0aVm2H0
https://imgur.com/6mdEAZT
https://imgur.com/oFOA07p
https://imgur.com/AvCKjgh

#28198 - 11/12/19 03:41 PM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: Jan 2014
Posts: 627
Rolly Offline
addict
Rolly  Offline
addict

Joined: Jan 2014
Posts: 627
The board you have pic's of is an LRV5 Otis board with U10 & U11 chips. Are you sure this is the correct board for the job? There are many vintages and wiring diagrams of LRV Series. Need to have the correct processor board for the job U10 is a 27C512 chip and U11 is a 27C64. Sent you a PM.

#28200 - 11/12/19 07:03 PM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: Jan 2014
Posts: 627
Rolly Offline
addict
Rolly  Offline
addict

Joined: Jan 2014
Posts: 627
If you do get the board, the HEEP Program can make chips (Hydraulic Elevator Eprom Programs). Makes the Generic and contract chip for boards.

#28239 - 11/20/19 03:50 PM Re: OTIS LRV COMPUTER CHIPS [Re: Elevator_Logic]  
Joined: Dec 2017
Posts: 33
Huskervator Offline
newbie
Huskervator  Offline
newbie

Joined: Dec 2017
Posts: 33
Just a question. In the State that I’m in, if you place an elevator back in service that has been decommissioned. The State will require it to comply with current code.


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