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Related

Raspberry Pi portable screen issues

Former Member
Former Member over 11 years ago

Hello, raspberrypiuser1234 here.

I Have a question about my screen. I recently ordered a 7" screen for my rasp-pi

(7 inch TFT Color LCD Car Rear View Camera Monitor Support Rotating The Screen and 2 AV Inputs

http://amzn.com/B007SLDF7O)

. To my surprise, the power cables were bare wires. I have tried attaching it to a 12v 1A ps, but no luck. What Am  I doing wrong?

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  • bodgy
    0 bodgy over 11 years ago

    First things first - does the monitor power up? If it isn't clear which wire is positive, I would connect it via a bridge rectifier so you won't blow the monitor up! 

     

    If one of the wires has a white strip on it this will probably (but not guaranteed) be the positive connection.

     

    You might want to check with Amazon they haven't sent you a customer return by mistake, I would expect this to arrive with a plug as shown in the photo.

     

    Colin

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

    The monitor has 3 (power) wires. A red, A black, and A green. according to the pamphlet, red= +12v , black=ground, green=connection for car backup camera signal. The moniter makes no reaction (even tiny movements or flashes)  with a valid AV signal plugged in too (even though it shouldn't according to the pamphlet)

    thanks for answering   

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

    I have the same problem and I am kind of new to alll this could you maybe explain it a little differant please?

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