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Currently I am using my Raspberry Pi as a media player with Raspbmc. It connects via SCART (using a composite-to-SCART cable) to my tv.

My tv has only one SCART-input, and I also want to connect my tv settop box. The solution was to tie the two SCART cables together with a rubber band and switch cables when I want to use Raspbmc or the tv. This solution works fine.

The only problem is that once every 1-2 weeks my SD card gets corrupted. I thought of a lot of reasons, and one is frequently disconnecting the SCART cable. I noticed that the big metal surrounding of the SCART connector is electronically charged when I accidently touch it. Maybe the sudden drop (or rise) in voltage can cause SD card corruption.

Could hot-plugging a SCART cable (and maybe sometimes accidently touching the connector) result in SD card corruption?

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  • You had to buy a new sd card every 1-2 weeks? How many times did this occure?
    – Loko
    Oct 30 '13 at 8:43
  • Once I had to buy a new one, but normally re-installation of the OS was sufficient. That happened 6 or 7 times now I guess. Oct 30 '13 at 12:16
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    Could you post us a picture of the whole scart rig? The metal case should be GND and not have any voltage on it.
    – Piotr Kula
    Oct 30 '13 at 16:32
  • I use a composite to scart cable like this (mybroadband.co.za/photos/data/500/scart_to_rca_cable.jpg) for connecting the pi to my tv. My tv settop box is connect with a normal scart-to-scart cable. I just switch cables when I want to go from tv to Pi or vice versa. Oct 30 '13 at 19:40
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    does the raspi restart or hang or reboot when you play with cables?
    – lenik
    Oct 30 '13 at 23:53
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Since a while I switched to HDMI and the problem still exists: once every few weeks the SD-card keeps getting corrupted. Hot-plugging the scart cable cannot have caused the problem.

My guess is that it's due to a faulty power source.

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'Anything' that causes a power 'glitch' can corrupt the SD - especially plugging and rfemoving USB devices (unless you have a powered Hub)

The 'best' way around this is to use a decent (5.2v 1.5A for original Pi A/B) power suply, a powered USB Hub and MINIMISE any 'writing' to the SD. NOTE that pulling the power plug 'counts' as a glitch ! (so if you need to force reset freqently, fit a reset button)

Having said that, my Pi (used a a digital photoframe) 'never' writes anythting to the SD and I've 'pulled' the power plug hundreds of times without corruption.

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