Sporadic pixelation on HD channels (1 Viewer)

grubi

Portal Pro
June 16, 2007
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127.0.0.1
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MediaPortal Version: 1.2.2
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Windows Version: Win7 SP1 x86
CPU Type: Intel E4400
HDD: WD 160 GB internal + 3 TB NAS
Memory: 2 GB
Motherboard: ASUS P5Q Pro
Video Card: ATI Radeon HD 5570 (HIS passive)
Video Card Driver: Catalyst 11.12
Sound Card: C-Media CMI8738
Sound Card AC3: SPDIF coaxial
Sound Card Driver:
1. TV Card: Floppy DTV-C
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HTPC Case: Zalman HD135
Cooling:
Power Supply: Enermax MODU82+ 420
Remote: Logitech Harmony 785
TV: Panasonic TH-50PZ700E
TV - HTPC Connection: HDMI

I encounter sporadic pixelation on channels ARD HD and ZDF HD.
First I tried anything which seems related without any success (including changing the main amplifier and analysing the house cabeling by a professional company).

Then as a last attempt I did the stupid thing to pull the CAM (Alphacrypt Light) out of the Floppy DTV.
Belive it or not the problem is solved. I always was under the impression that problems with FTA channels could not be related to the CAM.

Then I called the hotline of Mascom and before I had the chance to complete my story the employee told me this is a known problem caused by a chip defect of the CAM.

So if you have similar problems and are not able to find the root cause give pulling the CAM a try although it sounds quite stupid.

Cheers.
 

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