Unknown Code for Very Old Emerson TV

Dave Sampson · Post by **Dave Sampson** » Sun Apr 23, 2006 8:41 am

Rob, I have too many things going on here and did not answer one of your questions.

Actually, the fact that some of those buttons in the URC-6131 did something, makes me wonder about the OBCs over 31. My guess is that they're all just wrap-around codes, but you never know, so here's another test upgrade with lots of buttons defined for the URC-6131...

Upgrade Code 0 = 2F D2 (VCR/2002) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 F0 1C FE 42 99 F8 04 84 44 C4 24 A4 64 E4
14 94 54 D4 34 B4 74 0C 5C 4C 2C AC 6C EC CC 1C
8C F4 9C DC 3C BC
End

I got virtually nothing here. No TV operation at all and also no LED operation on the following keys:
Vol+, Vol-, Mute, Angle

I tested all of the keys that had codes in IR Devices. I did not test the Not Mapped keys.

Mark Pierson · Post by **Mark Pierson** » Sun Apr 23, 2006 8:45 am

Dave Sampson wrote:I can not get these codes to work in the 1994.

Your current 1994 IR file contains 2 upgrades: TV/2000 and TV/2001. The TV device button is set for TV/2001. Have you tried the TV/2000 upgrade? I also see you have the CBL/SAT button set to Cable/2000 and wonder if you really meant to use TV/2000?

Post by **The Robman** » Sun Apr 23, 2006 9:02 am

Dave Sampson wrote:I can not get these codes to work in the 1994. Most flash the LED faintly and then I get the 2 flashes for error etc.

Sorry, that's my fault. The protocol code that I posted earlier was for newer remotes like the URC-6131. It needs to be changed very slightly to work with older remotes like the 15-1994. I have edited the previous post to now include 2 copies of the protocol. To make a quick fix to the protocol in your 15-1994, all you would need to do is change the last byte from 46 to 33.

I believe that we now probably have the complete set of OBCs for this TV, and it's nice to have found a few functions that aren't on the original remote (ie, DISPLAY, SLEEP, CH+, CH-, SAP and of course the useless TV/VCR)

Here is an updated upgrade for your URC-6131:
Upgrade Code 0 = 1F D0 (TV/2000) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 FE FE 81 98 08 88 48 C8 28 A8 68 E8 18 C0
20 90 80 40 70 B0 30 60 F0 A0 58 D8 38 B8 78 F8
End

Here is an updated upgrade for your 15-1994:
Upgrade Code 0 = 1F D0 (TV/2000) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 F6 BE A5 98 08 88 48 C8 28 A8 68 E8 18 C0
20 90 80 40 70 30 B0 F0 58 D8 38 B8 78 A0 60 F8
End

Dave Sampson wrote:I got virtually nothing here. No TV operation at all and also no LED operation on the following keys:
Vol+, Vol-, Mute, Angle

I tested all of the keys that had codes in IR Devices. I did not test the Not Mapped keys.

I'm surprised. When I looked at the codes that would have been sent when you tested that 15-1994 dummy code in the URC-6131, it sure looked like you would have been sending some of these higher OBCs. You did notice that this last dummy upgrade was a VCR code, not a TV code, right? I did that so I could get more buttons into it. Could I see the IR file that has this dummy upgrade in it please?

Dave Sampson · Post by **Dave Sampson** » Sat Apr 29, 2006 9:58 am

Sorry for the delay and for some mistakes I made. I am getting pretty confused from all of the codes.

I apparently did not do something right on one of the tests and have redone it. I did not keep track of the IR files.
This is the following code:
Upgrade Code 0 = 2F D2 (VCR/2002) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 F0 1C FE 42 99 F8 04 84 44 C4 24 A4 64 E4
14 94 54 D4 34 B4 74 0C 5C 4C 2C AC 6C EC CC 1C
8C F4 9C DC 3C BC
End
That I believe you are asking about in the last post.

'm surprised. When I looked at the codes that would have been sent when you tested that 15-1994 dummy code in the URC-6131, it sure looked like you would have been sending some of these higher OBCs. You did notice that this last dummy upgrade was a VCR code, not a TV code, right? I did that so I could get more buttons into it. Could I see the IR file that has this dummy upgrade in it please?

Results of test:
Info, Right Arrow, PVR, 1, 8, 9, TV/VID, Vol- = LED but not TV operation
Menu = Ch-
Guide = Vol+
Up Arror = Vol-
Down Arrow = Sleep Timer (numbers on screen only-not on this TV)
Left Arrow = Recall on Remote (displays Ch# and Main or Sap. Actual command from remote shows only channel number. TV does not have SAP capablility)
Thumbs Down = Recall on Remote (displays Ch# only, exactly as on remote)
Thumbs Up = Toggles between Selected Channel and Video (no video input on TV-RF Coax only. Remote does not have this capability).
Vol+ = Mute
Ch+ = Same as Thumbs up
Ch- = Same as Thumbs down
2 = Ch+
3 = Ch-
4 = Vol+
5 = Vol-
6 = Sleep-Same as Arrow Down
7 = Same as Thumbs Up
0 = Same as Thumbs down.
Enter = Selects Sap or Main
Angle = Mute

IR used for this test:
https://www.hifi-remote.com/forums/dload ... le_id=3144

Here you go Rob - Sorry for the confusion and thanks for the codes sent previously. I have not installed and tested them but I will and let you know.

Post by **The Robman** » Sat Apr 29, 2006 10:13 am

Thanks Dave, the only new function that I see in that list is the second DISPLAY button (or RECALL as you call it), so there's no big surprises.

All I'd like to hear to close this thread out is that you've tried the final "good" upgrade that I created that includes the CH+/-, SLEEP, DISPLAY, etc buttons and that everything works as it should.

Thanks.

Dave Sampson · Post by **Dave Sampson** » Sat Apr 29, 2006 4:03 pm

OK Rob, something happened here, I sent you a response but it did not get entered, so here goes again.

I believe that we now probably have the complete set of OBCs for this TV, and it's nice to have found a few functions that aren't on the original remote (ie, DISPLAY, SLEEP, CH+, CH-, SAP and of course the useless TV/VCR)

Here is an updated upgrade for your URC-6131:
Upgrade Code 0 = 1F D0 (TV/2000) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 FE FE 81 98 08 88 48 C8 28 A8 68 E8 18 C0
20 90 80 40 70 B0 30 60 F0 A0 58 D8 38 B8 78 F8
End

Here is an updated upgrade for your 15-1994:
Upgrade Code 0 = 1F D0 (TV/2000) Emerson M1325R TV (1980s) (KM v8.40)
FF 00 F6 BE A5 98 08 88 48 C8 28 A8 68 E8 18 C0
20 90 80 40 70 30 B0 F0 58 D8 38 B8 78 A0 60 F8
End

I used these along with the protocols sent on Apr 16 at 11:10

Results of tests:
Power, Volume, Mute, and Channel +/- worked as they should. The channel selects are selecting 1 of 16 programmed channels. The remote is very limited and has a key marked 'Recall' that will cause the number of the channel selected (1-16) to be constantly shown on screen. The TV actually has no sleep function or no other inputs beside the antenna connector and is mono. The references to a 'Video' source or to Sap can not be gotten with the supplied remote.
6131
Exit = Channel 16
Info = Recall but also shows 'Main' or 'Video'.
Menu = Sap and Main toggle
Arrow up = Channel 11
Arrow Down = Channel 12
Arrow Right = Channel 14
Arrow Left = Channel 13
Select = Channel 15
Prev = Recall
TV/VID = Toggle 'Video' or tuner
Angle = Sleep Time
1994
The transport keys light the LED but do not affect the TV. There is no 'Sleep' time.
Exit = Channel 16
Display = Recall but also shows 'Main' or 'Video'.
Menu = Sap and Main toggle
Arrow up = Channel 11
Arrow Down = Channel 12
Arrow Right = Channel 14
Arrow Left = Channel 13
Select = Channel 15
Last = Recall
TV/VID = Toggle 'Video' or tuner

If I can be of further service let me know. It helps to 'pay' my way. Thanks for all the help!!!

Post by **The Robman** » Sat Apr 29, 2006 5:22 pm

thanks Dave

Post by **The Robman** » Sun Apr 30, 2006 10:30 am

Hey Dave,
One last test. Could you try built in code TV/0381 on the URC-6131 to see if it does anything.

Dave Sampson · Post by **Dave Sampson** » Sun Apr 30, 2006 12:19 pm

It works Rob but is a little different and does not have all of the codes or channels. Notice the difference in channels 0-9.
Transport buttons and the Angle button light the LED but do not affect TV operation.
Power = Power
Vol + = Vol +
Vol - = Vol -
Ch + = Ch +
Ch - = Ch -
Mute = Mute
Info = Toggles between Video and Tuner
Prev = Recall
1= Ch 2
2= Ch 3
3 = Ch 4
4 = Ch 5
5 = Ch6
6 = Ch7
7 = Ch8
8 = Ch9
9 = Ch 10
0 = Ch1
It does not access channels 11-16, the sleep time, or Sap.

The lack of channels 11-16 are a serious handicap for this TV. The other missing functions are not used with this TV. This would work fine for me since I am only using it on one channel with my satelite.

I double checked, this is not in book? However, it is in my book now!

Post by **The Robman** » Sun Apr 30, 2006 1:36 pm

Those were the results that I expected. I noticed the channel numbers were off by one in the sample of the code that I have. I noticed the similarity between the protocol that I wrote and the official UEI protocol, then I noticed that there was a TV code in the URC-6131 that used it and the buttons mostly matched.

I will re-generate the upgrade so that it uses the official protocol as this will save you some upgrade memory.

Post by **The Robman** » Sun Apr 30, 2006 6:06 pm

I've updated the KM file to use the built in protocol now, so give it a whirl if you like. Feel free to re-arrange the ch11-16 buttons to whatever works best for you.

Here's the KM file ...
https://www.hifi-remote.com/forums/dload ... le_id=3090

Dave Sampson · Post by **Dave Sampson** » Sun May 07, 2006 6:17 am

Rob, this works exactly as it should and saves 35 bytes. Thanks.