12-07-2009
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#10 |
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Join Date: 01-01-2000 Location: East Anglia
Posts: 6259
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My System: Triple Dragon with HDD/USB stick, Dreambox 8000, Humax HDCI2000, Echostar AD3000ip & SR8700, Aston Simba, RSD ODM300.
Swedish Microwave 1.2 Motorised dish / Invacom C120 twin LNB driven by the AD3000. 3 other fixed dishes. 
Fighting the evil 3 Dragons under the Don Quixote banner,Sir Llew persevered where others failed
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Locate and check that the 13 or18V voltage out from the LT1930 voltage step-up converter is present (pin 1) in the schematic attached.
If yes, check for possible o/c diode and chokes connected via pin 1 to pin 2 of the tuner module.
If no, check 5V supply to the converter chip (pin 5). Possible other problem could be MOSFET Q72.
Llew |
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