LifeView TV Walker Twin DVB-T (LR540)

LifeView TV Walker Twin (LR540)

The PCB

A dual DVB-T USB Receiver from LifeView.

It is supported (for further information see below).

Components Used:

Contains 2 tuners and 2 demodulators, and 1 remote control.

• NXP/Philips 8275AC1 (tuner)
• NXP/Philips TDA10046A (demodulator)
• ULi M9206 (USB bridge)

The M9206 chip handles two demodulators and two tuners. There is also an IR receiver which is presumably controlled by the M9206. Note: This device's USB cable comes with 2 USB plugs. This is not one plug per tuner; plug in both of them together to supply adequate power to the device.

The demodulators are located at 7-bit i2c addresses 0x08 and 0x0b. The tuners are located at 7-bit i2c addresses 0x60 and 0x61.

Subsystem information:

USB id: 10fd:0514 (cold - before firmware download)
USB id: 10fd:0513 (warm - after firmware download)

Status

Supported and mostly working. Things which work include:

• Device is recognised and two tuners and two demodulators are attached. With the latest driver both tuners are working fine
• Can play video streams using Kaffeine
• Remote control initialisation and codes have been determined

Things which may not work include:

• "scan" only finds some transponders (for Nick Andrew, at least)
• Have not successfully used dvbstream yet (though, may be the result of incorrect settings)

Driver

This device works almost out-of-the-box if you have a sufficiently recent linux kernel.

• Support for this device (both tuners) is the mainline Linux kernel since 2.6.23
• Support for this device (1 tuner only) is in the mainline Linux kernel since 2.6.22
• You can use the v4l repository from linuxtv.org for more recent changes (if any)
• Work in progress occurs in the m920x experimental tree from http://linuxtv.org/hg/~aapot/m920x
• Go to http://linuxtv.org/repo/ and follow the instructions for building the modules and installing

Firmware

You will need to get firmware:

• firmware dvb-usb-tvwalkert.fw from http://www.nick-andrew.net/LifeView/

People who own such a device

Feel free to add yourself here, testers will always be needed!

Name	Email
Nick Andrew	nick-linuxtv at nick-andrew dot net (owns two TV Walker Twin devices)
pelrun	pelrun at gmail dot com (owns one LifeView TV Walker Twin)
Stev391	stev391 at email dot com (owns one LifeView TV Walker Twin)
blackpaw	lindsay at softlog dot com dot au (owns one LifeView TV Walker Twin)

Similar Devices

Zappa DVB-T USB LR523

Seems to be equal to the LifeView TV Walker DVB-T Q LR506 http://www.bandaancha.st/foros.php?temid=592815#633106

lsusb also reveals (idVendor 0x10fd Anubis Electronics, Ltd) and the idProduct is 0x0513, don't know if the usdbid is the same that the Walker LR506 but it's the same that the Lifeview TV Walker Twin.

Zappa LR523 have TDA10046A and a uli m9206 and a Philips 8275AC1 below the ir reciever.

It works in ubuntu >=8.04. With ubuntu 8.04 it's detected as Walker Twin but the firmware is correctly loaded because the integrated are the same but instead 2x philips the zappa have only one. Then appear adapter0 and adapter1 in dvb devices, with kaffeine then only 0 is shown and with MythTV both are shown but when selecting 1 insted of detectind as Philips TDA10046 tunner it says unkown error. When scanning channels with kaffeine snr is at 100% practicaly all the time. When the scanning is finished all the channels in my region has been detected and then it work perfect.

When the usb is plugged this is shown in /var/log/messages:

Jan  2 19:59:54 multimedia kernel: [34021.598405] usb 1-6: new high speed USB device using ehci_hcd and address 8
Jan  2 19:59:55 multimedia kernel: [34021.734809] usb 1-6: configuration #1 chosen from 1 choice
Jan  2 19:59:55 multimedia kernel: [34021.735460] dvb-usb: found a 'LifeView TV Walker Twin DVB-T USB2.0' in cold state, will try to load a firmware
Jan  2 19:59:55 multimedia kernel: [34021.753505] dvb-usb: downloading firmware from file 'dvb-usb-tvwalkert.fw'
Jan  2 19:59:55 multimedia kernel: [34022.186349] usb 1-6: USB disconnect, address 8
Jan  2 19:59:55 multimedia kernel: [34022.429608] usb 1-6: new high speed USB device using ehci_hcd and address 9
Jan  2 19:59:55 multimedia kernel: [34022.569229] usb 1-6: configuration #1 chosen from 1 choice
Jan  2 19:59:55 multimedia kernel: [34022.569537] dvb-usb: found a 'LifeView TV Walker Twin DVB-T USB2.0' in warm state.
Jan  2 19:59:55 multimedia kernel: [34022.569568] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
Jan  2 19:59:55 multimedia kernel: [34022.569800] DVB: registering new adapter (LifeView TV Walker Twin DVB-T USB2.0)
Jan  2 19:59:55 multimedia kernel: [34022.576939] DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
Jan  2 19:59:55 multimedia kernel: [34022.577041] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
Jan  2 19:59:55 multimedia kernel: [34022.577318] DVB: registering new adapter (LifeView TV Walker Twin DVB-T USB2.0)
Jan  2 19:59:55 multimedia kernel: [34022.582126] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:13.5/usb1/1-6/input/input8
Jan  2 19:59:55 multimedia kernel: [34022.637499] dvb-usb: schedule remote query interval to 100 msecs.
Jan  2 19:59:55 multimedia kernel: [34022.637507] dvb-usb: LifeView TV Walker Twin DVB-T USB2.0 successfully initialized and connected.

While the device is in use its appearing contynuosly this two entries in /var/log/message

Jan  2 20:58:34 multimedia kernel: [37537.294281] tda1004x: setting up plls for 48MHz sampling clock
Jan  2 20:58:36 multimedia kernel: [37539.222923] tda1004x: found firmware revision 23 -- ok

And i don't know when i was watching the tv or scanning for channels in messages appeared this:

Jan  2 20:09:31 multimedia kernel: [34597.417707] DVB: frontend 0 frequency 866000000 out of range (51000000..858000000)
Jan  2 20:09:31 multimedia kernel: [34597.917393] DVB: frontend 0 frequency 874000000 out of range (51000000..858000000)
Jan  2 20:09:32 multimedia kernel: [34598.417044] DVB: frontend 0 frequency 882000000 out of range (51000000..858000000)
Jan  2 20:09:32 multimedia kernel: [34598.941839] tda1004x: setting up plls for 48MHz sampling clock
Jan  2 20:09:34 multimedia kernel: [34600.869724] tda1004x: found firmware revision 23 -- ok
Jan  2 20:09:34 multimedia kernel: [34600.932960] DVB: frontend 0 frequency 890000000 out of range (51000000..858000000)
Jan  2 20:09:35 multimedia kernel: [34601.432616] DVB: frontend 0 frequency 898000000 out of range (51000000..858000000)

External Links

• LifeView Product Page