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Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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<blockquote data-quote="justone" data-source="post: 574696" data-attributes="member: 311066"><p>Wow, pretty fast answer (even while xmas time)</p><p></p><p>Ok did as suggested, with an ordinary multimeter, but it turned out to be tricky task. Since, when pluggin in the unit, relais start clickering and voltages change per click. Thus, plug off ... wait until capacitors cleared and re-plugin the whole lot. And 1 out of 20 attempts, the relais seems to remain in a state where the outputs at CN2 have power.</p><p>What I detected was the following:</p><p>SKEW=5</p><p>M-P=4</p><p>WEST=5</p><p>EAST=5</p><p>5VS=5.1</p><p>PCS=4.3</p><p>30V=37,3</p><p>21V=24,9</p><p>G=GND</p><p>12V=11,8</p><p>G=GND</p><p>5VD=5,1</p><p>5VD=5,1</p><p>9V=8,8</p><p>G=GND</p><p></p><p>Values differ on the 21V and 30V line by let's say -2/+5 V when trying differnt times.</p><p>One times the machine even fired up until the display did show a channelnumber. Relais did click 1 times which is normal when being connected to the mains.</p><p></p><p>Besides, I studied your nice DaVinci attempt (great work) with all the comments and the list of items. From scratch, I would simply buy them all in case that helps getting the Echostar going again, but I'm really lost with electronics. I could surely buy them, solder them in the correct way(orientation) but I can't simply guess what's wrong.</p><p></p><p>Just in case it matters, none of the electrolyts are exploded or such like. And I also got the usual 2 hotspots at R3/R17</p><p></p><p>Lost again ... anything else I could check next ? A and no I got nothing besides a multimeter and a soldering iron.</p></blockquote><p></p>
[QUOTE="justone, post: 574696, member: 311066"] Wow, pretty fast answer (even while xmas time) Ok did as suggested, with an ordinary multimeter, but it turned out to be tricky task. Since, when pluggin in the unit, relais start clickering and voltages change per click. Thus, plug off ... wait until capacitors cleared and re-plugin the whole lot. And 1 out of 20 attempts, the relais seems to remain in a state where the outputs at CN2 have power. What I detected was the following: SKEW=5 M-P=4 WEST=5 EAST=5 5VS=5.1 PCS=4.3 30V=37,3 21V=24,9 G=GND 12V=11,8 G=GND 5VD=5,1 5VD=5,1 9V=8,8 G=GND Values differ on the 21V and 30V line by let's say -2/+5 V when trying differnt times. One times the machine even fired up until the display did show a channelnumber. Relais did click 1 times which is normal when being connected to the mains. Besides, I studied your nice DaVinci attempt (great work) with all the comments and the list of items. From scratch, I would simply buy them all in case that helps getting the Echostar going again, but I'm really lost with electronics. I could surely buy them, solder them in the correct way(orientation) but I can't simply guess what's wrong. Just in case it matters, none of the electrolyts are exploded or such like. And I also got the usual 2 hotspots at R3/R17 Lost again ... anything else I could check next ? A and no I got nothing besides a multimeter and a soldering iron. [/QUOTE]
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Tech Head - The Technology Section
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Schematic For Echostar AD3000ip Power Supply
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