SamyGO - User contributions [en]

How to send FACTORY+3SPEED keys

2012-07-07T14:13:33Z

Pdca:

'''CAUTION!''' 
The danger to brick TV is high. You can harm your TV by changing values in service menu. Be 200% sure what you`re doing. 
This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct one (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
==Theory==
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

==How to build the dual led IR transmitter==

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and both to one stereo channel, Led1 (-) must be connected to Led2 (+) and both to the other stereo channel leaving the ground not connected

[[File:Immagine10.png|400px]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and play the audio files
==Ready to use '''.wav''' files==
Curently just two codes (required to unlock locked service menu settings) are prepared:
FACTORY
3SPEED
You can download them from SamyGO download area. Direct link [http://download.samygo.tv/Others/FACTORY_3SPEED_wav.7z here]. 
Another usefull codes...
POWER ON/OFF
CH UP
Download from [http://download.samygo.tv/Others/POWER_ON_OFF_CH_UP_wav.7z here].
 

==Important Notes==

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png|400px]]

Following some pictures of my IR transmitter based on audio .wav
 
[[File:Picture4.jpg|300px]][[File:Picture5.jpg|300px]][[File:Picture6.jpg|300px]]
 
 

==References==
* This the link I used as reference for the process [http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/]
* Related [http://forum.samygo.tv/viewtopic.php?f=52&t=4109&p=33123#p33069 topic] on the SamyGO forum.
 
 
<hr>

[[User:Pdca|pdca]] 19:20, 5 July 2012 (UTC)

How to send FACTORY+3SPEED keys

2012-07-05T20:24:42Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct one (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
==Theory==
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

==How to build the dual led IR transmitter==

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and both to one stereo channel, Led1 (-) must be connected to Led2 (+) and both to the other stereo channel leaving the ground not connected

[[File:Immagine10.png|400px]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and play the audio files
==Ready to use '''.wav''' files==
Curently just two codes (required to unlock locked service menu settings) are prepared:
FACTORY
3SPEED
You can download them from SamyGO download area. Direct link [http://download.samygo.tv/Others/FACTORY_3SPEED_wav.7z here]. 
Another usefull codes...
POWER ON/OFF
CH UP/DOWN
Download from [http://download.samygo.tv/Others/POWER_ON_OFF_CH_UP_wav.7z here].
 

==Important Notes==

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png|400px]]

Following some pictures of my IR transmitter based on audio .wav
 
[[File:Picture4.jpg|300px]][[File:Picture5.jpg|300px]][[File:Picture6.jpg|300px]]
 
 

==References==
* This the link I used as reference for the process [http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/]
* Related [http://forum.samygo.tv/viewtopic.php?f=52&t=4109&p=33123#p33069 topic].
 
 
<hr>

[[User:Pdca|pdca]] 19:20, 5 July 2012 (UTC)

How to send FACTORY+3SPEED keys

2012-07-05T19:41:25Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct one (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
==Theory==
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

==How to build the dual led IR transmitter==

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and both to one stereo channel, Led1 (-) must be connected to Led2 (+) and both to the other stereo channel leaving the ground not connected

[[File:Immagine10.png|400px]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files
==Ready to use '''.wav''' files==
Curently just two codes (required to unlock locked service menu settings) are prepared:
FACTORY
3SPEED
You can download them from SamyGO download area. Direct link [http://download.samygo.tv/Others/FACTORY_3SPEED_wav.7z here]. 
Another usefull codes...
POWER ON/OFF
CH UP/DOWN
... will be uploaded later.

==Important Notes==

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png|400px]]

Following some pictures of my IR transmitter based on audio .wav
 
[[File:Picture4.jpg|300px]][[File:Picture5.jpg|300px]][[File:Picture6.jpg|300px]]
 
 

==References==
* This the link I used as reference for the process [http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/]
* Related [http://forum.samygo.tv/viewtopic.php?f=52&t=4109&p=33123#p33069 topic].
 
 
<hr>

[[User:Pdca|pdca]] 19:20, 5 July 2012 (UTC)

How to send FACTORY+3SPEED keys

2012-07-05T19:39:17Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct one (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
==Theory==
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

==How to build the dual led IR transmitter==

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Immagine10.png|400px]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files
==Ready to use '''.wav''' files==
Curently just two codes (required to unlock locked service menu settings) are prepared:
FACTORY
3SPEED
You can download them from SamyGO download area. Direct link [http://download.samygo.tv/Others/FACTORY_3SPEED_wav.7z here]. 
Another usefull codes...
POWER ON/OFF
CH UP/DOWN
... will be uploaded later.

==Important Notes==

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png|400px]]

Following some pictures of my IR transmitter based on audio .wav
 
[[File:Picture4.jpg|300px]][[File:Picture5.jpg|300px]][[File:Picture6.jpg|300px]]
 
 

==References==
* This the link I used as reference for the process [http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/]
* Related [http://forum.samygo.tv/viewtopic.php?f=52&t=4109&p=33123#p33069 topic].
 
 
<hr>

[[User:Pdca|pdca]] 19:20, 5 July 2012 (UTC)

File:Immagine10.png

2012-07-05T19:36:40Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T16:20:20Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct one (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Picture2.png]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files

'''Important Notes'''

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png]]

Following some pictures of my IR transmitter based on audio .wav

This the link I used as reference for the process http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/

[[File:Picture4.jpg]] [[File:Picture5.jpg]] [[File:Picture6.jpg]]

How to send FACTORY+3SPEED keys

2012-07-05T16:15:28Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu (UE46EH5000) and set the correct (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Picture2.png]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files

'''Important Notes'''

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png]]

Following some pictures of my IR transmitter based on audio .wav

This the link I used as reference for the process http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/

[[File:Picture4.jpg]] [[File:Picture5.jpg]] [[File:Picture6.jpg]]

How to send FACTORY+3SPEED keys

2012-07-05T16:12:10Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Picture2.png]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files

'''Important Notes'''

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png]]

Following some pictures of my IR transmitter based on audio .wav

This the link I used as reference for the process http://jumpjack.wordpress.com/2008/05/20/worlds-cheapest-remote-control-replicator-just-1/

[[File:Picture4.jpg]] [[File:Picture5.jpg]] [[File:Picture6.jpg]]

How to send FACTORY+3SPEED keys

2012-07-05T16:09:40Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Picture2.png]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files

'''Important Notes'''

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png]]

Following some pictures of my IR transmitter based on audio .wav

[[File:Picture4.jpg]] [[File:Picture5.jpg]] [[File:Picture6.jpg]]

File:Picture6.jpg

2012-07-05T16:07:39Z

Pdca:

File:Picture5.jpg

2012-07-05T16:07:27Z

Pdca:

File:Picture4.jpg

2012-07-05T16:07:12Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T16:04:29Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct (by sending FACTORY and 3SPEED). In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

The connections should be as showed below= Led1 (+) must be connected to Led2 (-) and Led1 (-), Led2 (+) must be connected to the 2 stereo channels leaving the ground not connected

[[File:Picture2.png]]

Using the stereo jack+2Led's and having the needed audio .wav files corresponding to the needed RC key code, it is possible to emulate the RC by inserting the jack in a common .wav player and put in play the audio files

'''Important Notes'''

1. The sound player hardware should have stereo output with enough amplification (I tested on 3 smartphones and it worked only on Nokia N8). It shouldn't be a problem if PC sound card is used

2. The output Volume must be set to maximum level

3. The distance of action (from TV receiver) depends on output amplification (it can be 20cm or 3-4m)

4. The 2 Led must be correctly positioned in order to have enough area where the 38kHz are obtained as sum of the 2x19kHz (see below)

[[File:Picture3.png]]

File:Picture3.png

2012-07-05T16:03:57Z

Pdca: uploaded a new version of "File:Picture3.png"

File:Picture3.png

2012-07-05T16:02:29Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T16:01:13Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T15:54:54Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T15:47:25Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct. In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led’s 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

[[File:Picture2.png]]

File:Picture2.png

2012-07-05T15:46:50Z

Pdca:

File:Picture1.jpg

2012-07-05T15:43:56Z

Pdca:

How to send FACTORY+3SPEED keys

2012-07-05T15:29:56Z

Pdca:

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct. In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:

- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero

- Channel #2= same as Channel #1 but inverted (basically mirrored)

then, it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter:'''

What you need is:

- 2 IR Led’s 940nm 5mm (the typical one present on RC)

- 1 stereo jack 3.5mm

How to send FACTORY+3SPEED keys

2012-07-05T15:26:55Z

Pdca: Created page with "This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting availabl..."

This page has the goal to show an alternative procedure for sending IR codes to Samsung TV. The procedure has successfully been used for unlocking the Local Area setting available on Service Menu and set the correct. In this way I could get a TV 100% compliant to my country (it was bought in another one).
The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By considering a common audio stereo channel (2 mono), it can support max of 22kHz per channel with a total of 44kHz.
This means that if an audio stereo channel is created by considering 2 mono channels defined in this way:
- Channel #1= sine wave with 19kHz as main frequency and silent for the time duration at which original IR key square wave is zero
- Channel #2= same as Channel #1 but inverted (basically mirrored)
it is possible to emulate the Remote Controller with a simple audio player hardware and a very simple dual led transmitter.

'''How to build the dual led IR transmitter'''[[Link title]]
What you need is:
- 2 IR Led’s 940nm 5mm (the typical one present on RC)
- 1 stereo jack 3.5mm