Sony DVD SIRC's remote control - Electronic Circuits Projects Diagrams Free

**Nigel Goodwin** · 9th April 2006, 01:50 PM

Has anyone had a play with Sony DVD remotes?.

My PIC IR tutorial is based on the Sony SIRC's system, which uses a 5 bit device code, and a 7 bit command code (plus 1 start bit). I 'thought' all SIRC's units were the same?, but on Saturday I was building a Sony multi-region modification transmitter, and it didn't work!.

I was rather bemused at first, but checking with a scope I found out that the DVD remote uses an extra 8 bits (21 bits in total, rather than 13 bits), and I wasn't aware of this.

The extra 8 bits seem the same whichever DVD button you press, so perhaps it's an extended device code?. I simply modified my code to send an extra 8 bits (actually 0x49) and the transmitter works perfectly now.

Simply point it at a compatible Sony DVD player (NS series) set on standby, and press a single button, and the player becomes region free :lol:

So, anyone else noticed this?.

mramos1 · 9th April 2006, 04:18 PM

I use old Sony equipment. But thought I would look around. It looks like it is new and releated to the new DVD products.

Found this on google. Updates to a Zenith remote I think.

[PDF] Firmware Library
File Format: PDF/Adobe Acrobat - View as HTML
V1.3 09-01-04 Adds Sony 20 bit codes (such as for DVD player) ... Adds possibility of transmit to Zenith as 1.5 stop bits. * V4.9 09-24-99 Works for Zenith ...
www.crwww.com/CRWeb/PDF/CR_Firmware.pdf - Similar pages

**Nigel Goodwin** · 9th April 2006, 04:27 PM

Quote:

Originally Posted by mramos1

I use old Sony equipment. But thought I would look around. It looks like it is new and releated to the new DVD products.

Thanks, at least it proves I'm not going mad! 8)

Papabravo · 9th April 2006, 04:28 PM

Sony actually has three different variations on SIRC with different message lengths. I can't remember what length the third one uses of the top of my head.

**Nigel Goodwin** · 9th April 2006, 04:38 PM

Quote:

Originally Posted by Papabravo

Sony actually has three different variations on SIRC with different message lengths. I can't remember what length the third one uses of the top of my head.

There was mention of 15 bits in the PDF listed above.

mramos1 · 9th April 2006, 06:26 PM

Nope, you are not going mad. But weird how it appears Sony DVDs only. Maybe the wega stuff went that way, but I did not see an reference to them when I was looking..

I cut and pasted from google, so the main PDF did not come over. Here is the main one. Looked like firmware updates, but the revision history might tell you when and what they changed. I did not read it.

http://www.crwww.com/CRWeb/PDF/CR_Firmware.pdf

Papabravo · 9th April 2006, 08:29 PM

Looks like 12, 15 and 20 from the following URL

http://www.xs4all.nl/~sbp/knowledge/ir/sirc.htm

Nigel is not mad he's just ahead of his time :wink:

densimitre · 28th June 2006, 01:00 AM

Hi to all..

I´m working actually in decode sony SIRC codes of my remote controller RM-SC3, of my Hi/Fi System (genezi)....

Capturing frames from this RM-SC3 (usinf TMR0 with DIV_16 on 16F648) i found that works in 12,15 & 20 bit modes...

I know the protocol of 12 bits..but..what about 15 and 20 bits..???

Thank you very much

Bye

Papabravo · 28th June 2006, 01:47 AM

Did you follow the thread in the previous post?

densimitre · 28th June 2006, 03:25 AM

Yes, but my questions is: The Remote Control implements just one only mode?...or it can do all modes at same devices..

If is 15 or 20 too, how can i identify the device and command codes?

examples of my RM-SC3..

Key Captured Frame Lenght(bits)
Pause 10011100101110000000 20
Stop 00011100101110011100 20
+ 010010000001 12
- 110010000001 12
Display 110100100001 12
Select 010001100001 12
Set/Clock101001100001 12
Power 101010000001 12
Tape 110001000001 12
CD 101001000001 12
Tuner/Band 111100000001 12
Function 100101100001001 15
|<< 00001100101110011100 20
>>| 10001100101110011100 20
>> 00101100101110011100 20
Enter 00111110101110011100 20

First bit is the first received from RM...

Now, i dont know the format of the 15 and 20 bits packet mode..

Thankyou

Papabravo · 28th June 2006, 03:34 AM

Sorry this was an old thread that was resurected. Try this link
http://www.geocities.com/CapeCanaver...4652/sircs.htm
Why can't people find things the way I can?

densimitre · 30th June 2006, 12:43 AM

The link is great, but your thirth line...mmmmmmmmmm

Thank you

Papabravo · 30th June 2006, 12:52 AM

....mmmmmmmmmmmm yourself.

The third line was tongue in cheek, and it's no big secret. I just use Google, and I follow the links. Everybody here is capable of doing precisely the same thing. We expect no less.

densimitre · 30th June 2006, 12:58 AM

Quote:

Originally Posted by Papabravo

....mmmmmmmmmmmm yourself.

The third line was tongue in cheek, and it's no big secret. I just use Google, and I follow the links. Everybody here is capable of doing precisely the same thing. We expect no less.

Ok, dont worry

That link i had already read...my problem is than 20 bits code can´t be decoded, because the protocol is not out there...

Example: device´s codes for my RM is not the same when appears 15 or 20 bits code...please read above...in that cirscuntances i dont know what to do...

Thank you

**Nigel Goodwin** · 30th June 2006, 10:30 AM

Quote:

Originally Posted by densimitre

Ok, dont worry

That link i had already read...my problem is than 20 bits code can´t be decoded, because the protocol is not out there...

Example: device´s codes for my RM is not the same when appears 15 or 20 bits code...please read above...in that cirscuntances i dont know what to do...

Check my tutorial at http://www.winpicprog.co.uk/pic_tutorial5.htm, which describes how to use the different formats, it's really pretty easy!.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

9th April 2006, 01:50 PM	(permalink)
Nigel Goodwin	Sony DVD SIRC's remote control Has anyone had a play with Sony DVD remotes?. My PIC IR tutorial is based on the Sony SIRC's system, which uses a 5 bit device code, and a 7 bit command code (plus 1 start bit). I 'thought' all SIRC's units were the same?, but on Saturday I was building a Sony multi-region modification transmitter, and it didn't work!. I was rather bemused at first, but checking with a scope I found out that the DVD remote uses an extra 8 bits (21 bits in total, rather than 13 bits), and I wasn't aware of this. The extra 8 bits seem the same whichever DVD button you press, so perhaps it's an extended device code?. I simply modified my code to send an extra 8 bits (actually 0x49) and the transmitter works perfectly now. Simply point it at a compatible Sony DVD player (NS series) set on standby, and press a single button, and the player becomes region free :lol: So, anyone else noticed this?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

9th April 2006, 04:18 PM	(permalink)
mramos1	I use old Sony equipment. But thought I would look around. It looks like it is new and releated to the new DVD products. Found this on google. Updates to a Zenith remote I think. [PDF] Firmware Library File Format: PDF/Adobe Acrobat - View as HTML V1.3 09-01-04 Adds Sony 20 bit codes (such as for DVD player) ... Adds possibility of transmit to Zenith as 1.5 stop bits. * V4.9 09-24-99 Works for Zenith ... www.crwww.com/CRWeb/PDF/CR_Firmware.pdf - Similar pages

9th April 2006, 04:28 PM	(permalink)
Papabravo	Sony actually has three different variations on SIRC with different message lengths. I can't remember what length the third one uses of the top of my head.

9th April 2006, 06:26 PM	(permalink)
mramos1	Nope, you are not going mad. But weird how it appears Sony DVDs only. Maybe the wega stuff went that way, but I did not see an reference to them when I was looking.. I cut and pasted from google, so the main PDF did not come over. Here is the main one. Looked like firmware updates, but the revision history might tell you when and what they changed. I did not read it. http://www.crwww.com/CRWeb/PDF/CR_Firmware.pdf

9th April 2006, 08:29 PM	(permalink)
Papabravo	Looks like 12, 15 and 20 from the following URL http://www.xs4all.nl/~sbp/knowledge/ir/sirc.htm Nigel is not mad he's just ahead of his time :wink:

28th June 2006, 01:00 AM	(permalink)
densimitre	Hi to all.. I´m working actually in decode sony SIRC codes of my remote controller RM-SC3, of my Hi/Fi System (genezi).... Capturing frames from this RM-SC3 (usinf TMR0 with DIV_16 on 16F648) i found that works in 12,15 & 20 bit modes... I know the protocol of 12 bits..but..what about 15 and 20 bits..??? Thank you very much Bye

28th June 2006, 01:47 AM	(permalink)
Papabravo	Did you follow the thread in the previous post?

28th June 2006, 03:25 AM	(permalink)
densimitre	Yes, but my questions is: The Remote Control implements just one only mode?...or it can do all modes at same devices.. If is 15 or 20 too, how can i identify the device and command codes? examples of my RM-SC3.. Key Captured Frame Lenght(bits) Pause 10011100101110000000 20 Stop 00011100101110011100 20 + 010010000001 12 - 110010000001 12 Display 110100100001 12 Select 010001100001 12 Set/Clock101001100001 12 Power 101010000001 12 Tape 110001000001 12 CD 101001000001 12 Tuner/Band 111100000001 12 Function 100101100001001 15 \|<< 00001100101110011100 20 >>\| 10001100101110011100 20 >> 00101100101110011100 20 Enter 00111110101110011100 20 First bit is the first received from RM... Now, i dont know the format of the 15 and 20 bits packet mode.. Thankyou

28th June 2006, 03:34 AM	(permalink)
Papabravo	Sorry this was an old thread that was resurected. Try this link http://www.geocities.com/CapeCanaver...4652/sircs.htm Why can't people find things the way I can?

30th June 2006, 12:43 AM	(permalink)
densimitre	The link is great, but your thirth line...mmmmmmmmmm Thank you

30th June 2006, 12:52 AM	(permalink)
Papabravo	....mmmmmmmmmmmm yourself. The third line was tongue in cheek, and it's no big secret. I just use Google, and I follow the links. Everybody here is capable of doing precisely the same thing. We expect no less.