Remote control stopped working on CW4000

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Originally Posted by eyeamok

It is easy to replace ir sensor for CW, build the hackaday 18f4550 board or buy one pre-built, and program chip with code, I have the code, and have built 4 of them, they all work perfect. Basically the remote is a wireless keyboard and uses such commands. Parex 9708 remote

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I want the replaced IR sensor card to work with the original remote control rather then with a wireless keyboard. The wireless keyboard does work. I have found that if the IR sensor card does not work then you get a green screen for HD channels although SD channels come in fine. I was reading that Captiveworks did this so cloning would not happen. Can I either send you the old IR sensor and have you fix it or can I buy the part from you of a new IR sensor? This would be very important to me. I had to buy a 2nd Captiveworks 4000 and swap parts to get my original to work. I would love to get the 2nd unit to work as well via your great idea.

Just seen this.

I have two CW4000 remotes plus two sensors as well as a card adapter.

The number on the chip for one IR board is 0707908 and the other is 0707540 plus the USB cables.

You can have them all for 50 bucks. I'll ship for free.

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Originally Posted by jvvh5897

Hum...I know nothing about this box, but in others the IR sensor is a three pin integrated circuit with a photo diode inside and a amp to clean up the signal to get to TTL like levels. The sensor runs on 5 volts typically just like the usb port might share but can be bought in 3.3V versions. If you had an odd enough power fail, the sensor might be bad but you could test that pretty easy--use a capacitor to pin that looks to be not ground or +V and feed it to a audio line-in on a PC (or you could feed it to any line-in on a stereo using capacitor and just listen to the sound). The remotes typically use a carrier on time of about 500 micro seconds and off times of 500 micro sec or 1000 micro sec--that is 2000 Hertz to about 1500 Hertz tones. I've even held AM receivers close to a remote and been able to hear the thing work when a button is pressed, but with a linux based box, I bet there is too much noise generated for you to try that inside the box.

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My apologies for being 3 years late to the conversation. All respect to jvvh, great work on the sti stb units .

Regarding cw4000

It is a computer running a debian based linux. On a msi motherboard. With a custom bios, that the os checks for , if you "update" or change to msi bios

The remote control stops working as does the genpix Skywalker 1 cw3k 8psk tuner .

Why? Simple since its a computer running open source , many clones were made, cw wanted to protect their sales and work.

What work?
1) Converting a Germany based VDR satellite and cable media receiver to use in English north America satellites

2) writing a stb like flash interface for TV use.

3) allowing scanning of american satellites , and convert to sort by Station ID aka sid aka channel number .

4) dev of a remote control and a ir receiver module. Which is recorded on a Cyprus dipp semi.

The remote control module on bootup is recognized as a mouse. That way any keyboard still works.

Several people made clones of the remote ir receiver with plugs into the msi on board usb header.


As to dinosaur, well unlike 99% of past FTA boxes , this is a computer and continues to run,

1) its a PVR it records the entire stream including the info button data, all the audio including Dolby digital and stereo, it records native video that they're sending.

2) Its a DVD recorder/player makes flawless DVD of any recording that plays on any DVD stb.

3) its a media center that can be logged into by another device and watched live TV or recordings

4) unlike a htpc its purpose built and can be 100% controlled by the remote control, which is why people call it a FTA maybe.

5) the base software ie the linux and the flash and the VDR are all currently made and widely used in europe.

6) in Europe they use it as a hub/server to behave as a Hopper /Joey style system.

6a) it can accept cable, ota HD antenna tuners

6b) supports 2TB hard disks for recording.

If your original ir module does not work, maybe someone in Glendale has a spare one. Caution if you plug it in the wrong position you roast something in the module .

I know it's late but I hope this helps

I know several people who run this unit flawlessly om the 17 r2 software as we speak.

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Originally Posted by Benney

Just seen this.

I have two CW4000 remotes plus two sensors as well as a card adapter.

The number on the chip for one IR board is 0707908 and the other is 0707540 plus the USB cables.

You can have them all for 50 bucks. I'll ship for free.

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Be careful of orientation when you plug the ir receiver into usb header . I would suggest you look at wayback machine and read captiveworks.org how to on this. Or you'll fry them too.