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by jjggag
Wed Nov 07, 2012 8:07 pm
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Re: Screen becomes blurry after plugging hard drive

I had the opportunity to connect the raspberry to a monitor through hdmi, keeping the rest of the configuration. It worked! noise/snow disappared. So obviously is related to the composite video cable. have you tryed earthing the composite cable yet? As I commented, I'm not into electronics so I stil...
by jjggag
Mon Nov 05, 2012 9:12 pm
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Re: Screen becomes blurry after plugging hard drive

How are you hearing the buzzing sound? From the TV loudspeaker, from the power supply, from the hard disk, ...? From the TV loudspeaker though is a constant buzzing, no matters if I volume up, it doesnt sound louder. It only goes away if I press mute on tv. Did you use the power supply in the photo...
by jjggag
Sun Nov 04, 2012 4:52 pm
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Re: Screen becomes blurry after plugging hard drive

Ok, I just tried to connect the outer part of the composite video to TP2 (ground) in the raspberry using just a piece of wire with no results.
Its very annoying because apart from the static/snowy image, I also get buzzing (sound).
by jjggag
Sun Nov 04, 2012 11:20 am
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Re: Screen becomes blurry after plugging hard drive

I know that this is going to sound stupid but: How can I simply ground it? as I am totally noob at electronics, I'm into programming. The only way I can come with, is to connect the the outer part of the composite cable (the jack connected to the tv) to the analog ground of an arduino that I have, t...
by jjggag
Sat Nov 03, 2012 11:38 am
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Re: Screen becomes blurry after plugging hard drive

Is your powered hub backpowering? According to https://www.modmypi.com/shop/raspberry-pi-accessories/New-Link-4-Port-USB-Hub-(USB-2.0-with-Mains-Adaptor) is not. Take a look at this entry at the RasPi Troubleshooting Wiki: http://elinux.org/R-Pi_Troubleshooting#Interference_visible_on_a_HDMI_or_DVI...
by jjggag
Fri Nov 02, 2012 10:52 pm
Forum: Troubleshooting
Topic: Screen becomes blurry after plugging hard drive
Replies: 16
Views: 1771

Screen becomes blurry after plugging hard drive

Scenario: Raspberry model B powered by 1A usb. Hard drive: 2TB WD20Ears 3.5'' so I use this adaptor from sata to usb: http://dx.com/p/usb-2-0-to-sata-ide-5-component-cable-black-10113?item=8 so it's self powered. The hd is connected to a Powered usb hub: 'Newlink NLUSB2-222P 4 port USB 2.0 Hub with ...

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