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Echostar sr8700 power supply schematic
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<blockquote data-quote="harm lok" data-source="post: 1103773" data-attributes="member: 415123"><p>Sorry to hear captain Jack . My repair has taken a lot more time , but the my SR8700 power supply is also already up and running. </p><p>But your defect looks like there something wrong with the embedded system. Is the system up , you can measure if there is a clock signal.</p><p>Maybe there is something wrong with the Eproms , but the characters on the display looks more like there is no synchronization between the segments and the displays. When the processor halts at a random point this could be the result. A common failure in older embedded systems is the reset and also the watchdog circuit.</p></blockquote><p></p>
[QUOTE="harm lok, post: 1103773, member: 415123"] Sorry to hear captain Jack . My repair has taken a lot more time , but the my SR8700 power supply is also already up and running. But your defect looks like there something wrong with the embedded system. Is the system up , you can measure if there is a clock signal. Maybe there is something wrong with the Eproms , but the characters on the display looks more like there is no synchronization between the segments and the displays. When the processor halts at a random point this could be the result. A common failure in older embedded systems is the reset and also the watchdog circuit. [/QUOTE]
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Echostar sr8700 power supply schematic
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