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Raspberry Pi Forum No display using RCA composite video connector
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Forum Thread Details
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  • connector
  • raspberry_pi
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Related

No display using RCA composite video connector

Former Member
Former Member over 11 years ago

Hello,

I have recently purchased a Raspberry Pi and have set it up as follows:

image

 

 

At the TV end I have:

image

I have installed in my first attempt a Kali linux distribution from Download Official Kali Images | Kali Linux Official Documentation which failed and then I downloaded the

NOOBs Lite from Downloads | Raspberry Pi. When I powered on my TV in both cases I have the following result:

image

Similarly for source = AV1, DVD, SVHS, TV I get the same screen.

This is my connector:

image

Kindly help me out.

Thanking you

srikwit

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  • crosseyejack
    0 crosseyejack over 11 years ago

    What HDMI to Composite Video cable are you using? It will help better figure out if the cable is compatible

    If you are going to use that cable then you miight need to force HDMI mode. Have a read of Raspberry Pi • View topic - Force HDMI, even if booting w/out HDMI connected You will also need to set a resolution that will match what your TV is expecting though its composite video input, check out RPiconfig - eLinux.org for a list of the video modes you can set the HDMI port to.

     

    And because I have to ask, if you are going to connect the PI using composite video why not just use the composite video out provided by the pi?

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  • shabaz
    0 shabaz over 11 years ago

    Also, unless I'm not seeing it properly, the HDMI to RCA cable as seen in the last photo just looks wrong : ( The HDMI interface only transports digital data, and there doesn't seem to be any electronic adapter box in the photo.

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  • Former Member
    0 Former Member over 11 years ago in reply to shabaz

    Hey shabaz,

    My cable looks similar to http://www.tomshw.it/forum/attachments/schede-audio-altoparlanti-e-cuffie/87805d1385040929-ho-bisogno-di-un-cavo-hdmi-particolare-zena-hdmi-3rca-black-010.jpg

    As you can see, there is no intermediate adapter resulting in a direct conversion.

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  • Former Member
    0 Former Member over 11 years ago in reply to crosseyejack

    Hey crosseyjack,

    In my /boot/ I didn't have any config.txt or edid.dat so as per http://www.raspberrypi.org/documentation/configuration/config-txt.md I made a config.txt and a edid.dat as per Raspberry Pi • View topic - Force HDMI, even if booting w/out HDMI connected.

    Contents of config.txt:

    #Normal NTSC

    sdtv_mode=0

    #Video aspect 4:3

    sdtv_aspect =1

    #Maximum HDMI compatibility

    hdmi_safe=1

    #read from edid

    hdmi_edid_file=1

    Contents of edid.dat:

    s plugged in

    /opt/vc/tvservice -d ~/edid.dat

    sudo cp ~/edid.dat /boot

    The result is still the same but some random noise was in AV1 but I think its just noise(I do recognize the post-startx noise of kali).

    Sorry to inform you that it didn't work. Kindly point out my mistakes. Thanks for letting me know about config.txt.

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  • shabaz
    0 shabaz over 11 years ago in reply to Former Member

    Perhaps there is some electronics in the black plastic shroud around the HDMI connector. Some active electronics is needed for HDMI to RCA/Composite conversion.

    Anyway, as mentioned by crosseyejack there is no need for this, a two-wire phono/RCA cable is all you need, the RPI has an analog connector on-board that you can use.

    When you get the correct cable, i.e. for analog video, then you will need to press a button while starting up the RPI - see the instructions here.

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  • Former Member
    0 Former Member over 11 years ago in reply to shabaz

    Hey shabaz, I connected my raspberry pi to my TV as follows:

    image

    As you can see I have connected the RCA video output of the raspberry pi to the RCA video input of my T.V. and no other connectors are involved. The result is the same. Any suggestion will be helpful.

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  • shabaz
    0 shabaz over 11 years ago in reply to Former Member

    Did you press the button on the keyboard as mentioned earlier?

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  • crosseyejack
    0 crosseyejack over 11 years ago in reply to Former Member

    If you are now using an RCA to RCA cable rename config.txt back to something like config.bak (The config file is optional and is created by NOOBS anyway iirc) and if you like re unpack the NOOBS files on to the SD Card just to make sure you have a "Clean" install to work from.


    As shabaz says BREFORE YOU POWER The Raspberry Pi plug in a USB Keyboard and hold down either the Number 3 or 4 key and power the Raspberry Pi (3 for PAL TV's, 4 for NTSC TV's it all depends on the country you are in. Try 3 first as NTSC TV's will try and display something if given an PAL signal but PAL TV's can not normally handle NTSC signals). Hopefully you should see the NOOBS Setup up screen, at this point you can release the number key you have held down and be able to carry on as normal.

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  • Former Member
    0 Former Member over 11 years ago

    Sorry for replying so late I was downloading this image :

    NOOBS Offline and network install.

     

    The good news is that it worked (pressing 3 was all I had to do).

     

    I am grateful for your help @crosseyejack and @shabaz.

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