FetchTV YX-6936U Main Board Connections

Here are the connectors on the main fetch board.


1    Ethernet
2    HDMI
3    Optical
4    Composite S-Video Component
5    Rear USB
6    Front USB
7    SDA/SDK/ERR/Sync2/Clk2
8    Tuner Data D0-D7
9    Tuner Clock/Sync/Valid/Error
10    Tuner Power + I2C
11    From Power Supply
12    Smartcard Reader
13    Front Panel Light + remote
14    TTL RS232
15    3.3v + unknown
16    Sata

Power + Tuner Power

Tuner Control

Tuner Data + Control Front, USB

Front Panel

https://plus.google.com/photos/111113446315432778457/albums/5797610812510676321

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FetchTV YX-6936U Boot messages from rs-232 header inside unit

Inside the FetchTV box is a straight 6 pin header, if you look closely at the white writing near it, you will notice the assignments given by the first 4 pins.

The other four pin header has 3.3v and probably other things.

The data needs to be converted from TTL to rs-232 using a max232 chip.  Look on ebay for rs232 translator boards.  In my case the 5 volt rail powered my translator board, I used ground ground one of the tv tuners.

The connection speed is 115200 N,8,1.

As soon as the boot commences, it begins to spit out data.

The full dump is here

Interesting lines from the boot sequence:
BCM74130011
Shmoo Version=3.5
BCM97413B1 CFE v2.21.2679, CFE core v2.12, Endian Mode: Little
RSA encryption


So much like the Tivo, Generation 4.....

If anyone want to share their FetchTV dumps, please paste on pastebin.com and put a link in the comments below.

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FetchTV Ethernet ports open

These are the ports open on the FetchTV box.

Port 80,111 and 8000

Not much chop from port 80 in Firefox





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FetchTV Box Filesystem is XFS

Examining the hard drive of the FetchTV box is a easy, just unplug the SATA cable and connect it to a USB to SATA adapter.
The hard drive can be powered from the FetchTV box directly with it's internal SATA cable disconnected with no problems.

The file system is one partition containing a XFS file system, it is no problem to mount this drive using Ubuntu..

There is three directories on the drive; DATASTORE, PVOD and PVR.  The root directory contains some interesting large files such as logs and settings.

In the DATASTORE directory there is some configuration files including the ISP specific config, all in plain text and easy to mod.  Will post these files soon...

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Open Ports on FetchTV Box

Nmaping the Ethernet port on FetchTv box gave open ports on 80, 111 and 8000

Telneting into each one does not give much from GET or HELO, only port 80 on Firefox gave this.

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FetchTv yx-6936u STB Tear Down

I found one of these being put out with the rubbish, not being so sure what it was, I decided to grab it and check it out in the workshop.  The model was a YX-6936U aka Fetch TV, a IP TV & DVB-T Receiver.

The unit is secured with eight T10 Torx screws, opening the lid gave me a surprise of what was inside.

Three Tuners all daisy chained.

A smartcard (credit card) reader.

A Seagate 1TB SATA Hard Drive.

And the rest....

A good find indeed, power supply puts out 12, 5 and 7.5volts.





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