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MediaPortal 1
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DigitalDevices Dual DVB-S2 Testing (CAM/DiSEqC)
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<blockquote data-quote="belcom" data-source="post: 736320" data-attributes="member: 89055"><p>Hi Guys!</p><p></p><p>I nailed the issues from last post down, and still can't quite believe it.</p><p>All my problems came from the ribbon connecting the CI with the Tuner.</p><p>For the ones using DuoFlex or Octopus the following might also work <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>- Power of your HTPC (and really Power off - disconnect the power cord, not only Shutdown!!!)</p><p>- Disconnect the Ribbon and take it out of the chassis</p><p>- Take household aluminium foil and fold it over the ribbon (I folded ~10 times), see attached picture</p><p>- Take household plastic foil and fold it over the ribbon (to basically isolate the aluminium shield)</p><p>- VERIFY that your HTPC is COMPLETELY POWERLESS (push the Power switch to go for shure)</p><p>- Reconnect the ribbon in your chassis</p><p>- MAKE SURE that the foil DOESN'T TOUCH anything, or it may make an ELECTRIC SHORTCUT</p><p>- Also verify that it won't touch anything in future, e.g. something drills through the isolation</p><p>- Reconnect the power cord, boot it up and see what you got</p><p></p><p>For me it solved:</p><p>- "No signal" or "Nothing found" in channel search</p><p>- "No PMT found" in logs or SetupTV "Manual Control"</p><p>- "The channel is encrypted" although your smartcard should handle it</p><p>- cryptic symbols in CI Menu</p><p>- freezing LiveTV after some time</p><p>- (rare) BSoDs with errors in ks.sys</p><p></p><p>Why this helps:</p><p>I can only guess, but it seems the issue comes from EMI (electro magnetic interference).</p><p>Every circurity which is clocked sends out an electro magnetic field. As all components in a PC are clocked, ranging from PSU over motherboard and CPU to sound card, the EMI level in a PC can be very high. Now every wire turns into an antenna, receiving this magnetic field and changes it to power inside the wire - which in turn "changes" the information traveling through the wire.</p><p>With the aluminium foil shielding the ribbon, much EMI is absorbed in the shield, leading to a better and more stable signal flow inside the shield and therefore pretects the data traveling through the ribbon.</p><p></p><p>My HTPC is now running for over 12 hours on (encrypted) ORF 1 HD, before this I did dozens of channel changes, all without a single error.</p><p></p><p>I really hope this helps for many of the "magically" issues posted here!</p><p>At least it doesn't hurt to try.</p><p></p><p>When no problem comes back within the next 5 days, I will tell DD my story and beg them to change their ribbons.</p><p></p><p>Good luck everybody and pls let me know if it was of some help.</p><p></p><p>Yours, belcom.</p></blockquote><p></p>
[QUOTE="belcom, post: 736320, member: 89055"] Hi Guys! I nailed the issues from last post down, and still can't quite believe it. All my problems came from the ribbon connecting the CI with the Tuner. For the ones using DuoFlex or Octopus the following might also work :) - Power of your HTPC (and really Power off - disconnect the power cord, not only Shutdown!!!) - Disconnect the Ribbon and take it out of the chassis - Take household aluminium foil and fold it over the ribbon (I folded ~10 times), see attached picture - Take household plastic foil and fold it over the ribbon (to basically isolate the aluminium shield) - VERIFY that your HTPC is COMPLETELY POWERLESS (push the Power switch to go for shure) - Reconnect the ribbon in your chassis - MAKE SURE that the foil DOESN'T TOUCH anything, or it may make an ELECTRIC SHORTCUT - Also verify that it won't touch anything in future, e.g. something drills through the isolation - Reconnect the power cord, boot it up and see what you got For me it solved: - "No signal" or "Nothing found" in channel search - "No PMT found" in logs or SetupTV "Manual Control" - "The channel is encrypted" although your smartcard should handle it - cryptic symbols in CI Menu - freezing LiveTV after some time - (rare) BSoDs with errors in ks.sys Why this helps: I can only guess, but it seems the issue comes from EMI (electro magnetic interference). Every circurity which is clocked sends out an electro magnetic field. As all components in a PC are clocked, ranging from PSU over motherboard and CPU to sound card, the EMI level in a PC can be very high. Now every wire turns into an antenna, receiving this magnetic field and changes it to power inside the wire - which in turn "changes" the information traveling through the wire. With the aluminium foil shielding the ribbon, much EMI is absorbed in the shield, leading to a better and more stable signal flow inside the shield and therefore pretects the data traveling through the ribbon. My HTPC is now running for over 12 hours on (encrypted) ORF 1 HD, before this I did dozens of channel changes, all without a single error. I really hope this helps for many of the "magically" issues posted here! At least it doesn't hurt to try. When no problem comes back within the next 5 days, I will tell DD my story and beg them to change their ribbons. Good luck everybody and pls let me know if it was of some help. Yours, belcom. [/QUOTE]
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