As I move to HDTV and digital everything, I find that my Sony decoder is my short coming

Does anyone have any discreet codes to choose the imputs on a SDP-E800. The remote only has a next/previous input selector. For my Pronto, it makes it hard to automate (macro) changing between DVD, and Satelite/cable TV.

Any help would be much apreciated.

Matt.

Matt,

Does your receiver respond to the Sony receiver discrete power commands posted here:

[Link: remotecentral.com]

If you haven't tried this yet it will help narrow down the answer to your question.

-Jon

I took a look at the codes listed, and don't see any that match the format of the unit that I have. As it is a Digital Sound Processor, It's power is a hard button, so discrete on/off isn't even an option.

The two input buttons have the following IR codes:

0000 0067 0000 0015 0060 0018 0030 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 01e2

0000 0067 0000 0015 0060 0018 0018 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 01fb


I noticed on the link you gave that some of the TV IR codes are close except the 4th octive is 10 inside of 15. Has anyone ever tried tweeking an IR code to make is close to a known working model, or is this a foolish task.

Any help in decyphering an IR code into it's base elements would be appreciated.

Matt

Matt,

Barry Gordon has written what I think is considered the best documentation on how to decode Pronto hex and his examples are for Sony.

[Link: remotecentral.com]

I now have a better idea regarding your equipment since you posted your two commands. Sony has three main IR protocols, known as Sony 12, 15, and 20 that describe the number of data bits. There is a 7 bit command (or function) followed by a device address that can be 5, 8 or 13 bits. The 13 bits is now considered to be a 5-bit device and an 8-bit sub-device.

Your two commands are Sony 20 device=26 sub-device=233 expressed as 26.233

The first command is 10 the second 11 (all in decimal).

The best library that I have seen for Sony IR commands is here:

[Link: anycities.com]

If you click on 26.233 then you can see the known commands for that device code. To further complicate things Sony frequently uses multiple device codes for a single piece of equipment. This site referenced above has put together the multiple device codes that usually go together. In your case I did not see another device.

In order to generate pronto hex from this information, my favorite is John Fine's MakeHex:

[Link: remotecentral.com]

One piece of useful information is that this version of MakeHex still uses the 13-bit device (not a device sub-device code) so to get from the 26.233 to the 13-bit number multiply the sub-device (233) by 32 and add that to the device number (26) for a total of 7482.

Barry Gordon also wrote a "hex generator" GenIRDB that also uses the 13-bit device numbers. If you know a lot about binary to decimal manipulation this conversion won't make sense until you read Barry's documentation.

Now after all this explanation, I didn't see any discrete input commands for this device and that means one of two things:

1. Some or all of them don't exist
2. They haven't been found yet.

So assume it is case 2 then you can generate all 128 commands with MakeHex and blast away. This is low risk with audio products but we always warn about doing this with TV/RPTV because there have been cases where people have hit service modes or factory resets requiring a service call.

Finally it is also possible that there is another device code that your system responds to – so you may want to analyze all commands on the OEM remote (by learning every command to your Pronto) for a second device code and try all 128 possibilities for that as well. John Fine wrote a program to decode Pronto ccf files called ccf2efc:

[Link: remotecentral.com]

and ccf2efc can do that quickly rather than your having to decode them manually. If you do find new codes please post back the results.

Good luck,

-Jon

I read your last and gave it a try... but am not sure if I am doing it correctly. I ran makehex with the following settings

Device=7482
Function=0..127

Protocol=Sony20
Frequency=40000
Time Base=600
One=2,-1
Zero=1,-1
Prefix=4,-1
Message Time=45000
Form=;*,f:7,d:13


In reference to the sony device code listing, I compaired the output from this program only to find it different. I got for my code 10 and 11 that I listed in my last post

Device Code: 7482 Function: 10
0000 0068 0000 0015 0060 0018 0018 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 01F6
Device Code: 7482 Function: 11
0000 0068 0000 0015 0060 0018 0030 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 0018 0018 0018 0018 0018 0030 0018 0018 0018 0030 0018 0030 0018 0030 01DE

I notice that octit's 2 5 and 25 are different. I am not sure exactly how to setup the makehex program to generate the same codes.

Any suggestions.. I will try what was generated to see if any of the IR codes work..

I probably added to the confusion. Your first Pronto hex code was Command 11 the second was Command 10. Other than that the only difference that I see is the lead out off time at the end which is inconsequential. So they should work fine.

-Jon

You are correct. I did manage to document two new functions on the sony link that you gave (code 12 and 60)

I didn't however find any new functions to do discreet input changes. I guess I will still keep looking and just hope.