Mark Levinson IR decodes

jetstar52 · Post by **jetstar52** » Tue Sep 13, 2011 1:06 am

These signals from the Mark Levinson remote show up in irscope as "gap" signals, but I suspect, since similar Mark Levinsons use an Recs80(45) protocol, that these may be Recs80(45) as well. The learned signal DO work.

https://www.hifi-remote.com/forums/dload ... le_id=9918

And no, I can't afford any Mark Levinson gear. I'm helping a friend with HIS gear.

Post by **vickyg2003** » Tue Sep 13, 2011 6:32 am

Hi jetstar52. These are definately not RECS80 signals. I don't think Rob has written an executor for this signal. I looked in the file section for a Mark Levinson upgrade with a custom protocol, but couldn't find any other Mark Levinson upgrades at all. The LookUp tool has a few codes that use the RECS80 setup, but this is not the similar to these signals.

I don't know what Mark Levinson equipment is, (I'm only a JP1er for the clean coffee table

)

We need more information from you.

1) We need a complete list of functions. Rob prefers to work from learns in IR files, and I already have your ICT files for comparison. We need the functions names too. Please add the function names in the notes.

2) what is your target remote.

eferz · Post by **eferz** » Tue Sep 13, 2011 6:55 am

vickyg2003 wrote:I don't know what Mark Levinson equipment is, (I'm only a JP1er for the clean coffee table )

They're a high-end audio manufacturer who specializes on amplifiers, preamps, and digital audio processors. http://www.marklevinson.com/

It would also be nice to know exactly which model your "friend" has, that way we could pric... I mean, have other means of obtai... I mean, locate compatible IR codes.

Post by **The Robman** » Tue Sep 13, 2011 8:44 am

I have a spreadsheet that converts ICT data into IR data, so here's an IR version of the learns...
https://www.hifi-remote.com/forums/dload ... le_id=9919

Post by **The Robman** » Tue Sep 13, 2011 9:40 am

This is what the data looks like...

+5950 -2500 010010001100010110 +310 -57000 - vol+
+5950 -2500 010010001100001111 +310 -56000 - vol-
+5950 -2500 010010001100100100 +310 -58000 - mute
+5950 -2500 010010000001010010 +310 -59000 - Toggle standby
+5950 -2500 010010001110010001 +310 -57000 - go
+5950 -2500 010010001110001000 +310 -58000 - exit
+5950 -2500 010010001110100011 +310 -56000 - input 1
+5950 -2500 010010001110111010 +310 -55000 - input 2
+5950 -2500 010010001111000111 +310 -55000 - input 3
+5950 -2500 010010001111011110 +310 -54000 - input 4
+5950 -2500 010010001111101100 +310 -55000 - input 5

Where
0 = +310 -1200
1 = +310 -2200
freq = 38k

I'd like to see the complete set, with the buttons properly labeled, before trying to determine which portion is the OBC and whether there's a checksum involved. If it wasn't for the 4th signal, I would have said that the last 8 bits where the OBC.

jetstar52 · Post by **jetstar52** » Tue Sep 13, 2011 9:56 am

Thanks, everyone. The unit is a 383 integrated amplifier, and the target remote is either a 10820N or a RCRP05B. I don't have my notes with me now, so I'll post the list of commands for each signal in a few hours.

Post by **The Robman** » Tue Sep 13, 2011 10:26 am

Just FYI, there is an experimental version of IRScope that has a new Capture Wizard that might make capturing and notating the regular buttons easier.

More details here...
https://www.hifi-remote.com/forums/viewtopic.php?t=13373

Post by **The Robman** » Tue Sep 13, 2011 10:46 am

I found a picture of the remote here. It looks like there are just 11 buttons, so I'm guessing that we do have the complete set. The buttons are:

standby
setup
enter
select+
select-
volume+
volume-
polarity
balance
display
mute

jetstar52 · Post by **jetstar52** » Tue Sep 13, 2011 7:29 pm

That's the remote, but the physical buttons call only a subset of the amp's possible ir commands. The ones in the file I posted include discrete commands for power and input selection. I've reposted the ICT file, this time with each command name in the notes:

https://www.hifi-remote.com/forums/dload ... le_id=9920

The original remote is housed in a sturdy block of machined aluminum, befitting the princely sum charged for the amp, but despite that, the remote is as vulnerable to leaky carbon-zinc batteries as the cheapest Coby brand DVD player's remote, and the original remote is corroded beyond repair. So how does one get the ir codes? One of the things one gets for one's $$$ in this amp is a "teach IR" function, which will blast the IR commands from the amp's front panel display for learning. Sweet.

If possible, I'd like to create a device upgrade for use in a 10820N and/or a RCP05B.

Thanks once more for all of your help.

jetstar52 · Post by **jetstar52** » Tue Sep 13, 2011 7:49 pm

I learned Volume Up and Volume Down from the Mark Levinson 383 amp. The learns are included in this 10820N IR file:

https://www.hifi-remote.com/forums/dload ... le_id=9921

Post by **vickyg2003** » Wed Sep 14, 2011 8:27 am

jetstar52 wrote:T
The original remote is housed in a sturdy block of machined aluminum, befitting the princely sum charged for the amp, but despite that, the remote is as vulnerable to leaky carbon-zinc batteries as the cheapest Coby brand DVD player's remote, and the original remote is corroded beyond repair. So how does one get the ir codes? One of the things one gets for one's $$$ in this amp is a "teach IR" function, which will blast the IR commands from the amp's front panel display for learning. Sweet.
.

That's very interesting feature. I wonder if this sends out the same type of signals as the remote. I've had several pieces of equipment that respond to different types of signals. Did you try the RECS80 values?

It appears that the remote has signals that are not part of your capture.
enter
select+
select-
polarity
balance
display

I can't find any pattern to the binary. I do see that when conutned left to right the bits 9 and 10 are 11 unless unless bits 11 and 12 = 01.

I can write something to work like that for the signals given for the 10820n, but I have a feeling that its not that simple, and that this is going to come back and haunt me like the "Yamaha gap helper" did when more information is known.

Rob do you see any other pattern here?

jetstar52 · Post by **jetstar52** » Wed Sep 14, 2011 9:33 am

Thanks, Vicky. I captured only the signals I would need for macros and day-to-day operation. I guess I should have included everything. Unfortunately, the couple I'm doing this for, and their amp, are about three hours away, so I won't be getting access to the equipment for testing purposes.

Post by **The Robman** » Wed Sep 14, 2011 9:43 am

Jet, are you able to capture the 6 remaining buttons?

Here's an upgrade to try...
https://www.hifi-remote.com/forums/dload ... le_id=9924

jetstar52 · Post by **jetstar52** » Wed Sep 14, 2011 10:46 am

Great. I'll load the upgrade into a remote and ship off to my friend for testing. It may be a week or so before I'll know if it works. At that time, I may be able to get the other commands learned.

Thanks so much for your help!

Post by **vickyg2003** » Wed Sep 14, 2011 11:04 am

Make sure you test it with IRScope before you send it out. I'm having trouble with the upgrade on the 10820n. I'm not sure if something i'm doing wrong, or if there is something wrong with the upgrade itself.

Edit:

It looks a little better on the Atlas 3033, but looks like Rob has the zero's and one's reversed.