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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="Llew" data-source="post: 138027" data-attributes="member: 175007"><p>I've drawn up a circuit diagram for the SMPS of this receiver. More for my own curiosity and not exactly of professional quality, however it shows all components including positioner relays etc.</p><p></p><p>It might come in handy for circuit tracing in the (likely) possibility of a fault occuring in the power supply.</p><p></p><p>Here's a list of the main semi's -</p><p></p><p>TR1- BT137 Triac</p><p></p><p>IC1- 1H0565 Power Switch</p><p></p><p>IC5- Power Switch (for motor drive)</p><p></p><p>BD- PBS606G Bridge Rectifier</p><p></p><p>IC2,6,8- L9941 Optocouplers</p><p></p><p>IC3,4,7- KA431 Prog.Shunt Regulators</p><p></p><p>D5- SB860 Schottky Diode</p><p></p><p>D13- U16C20 Power Rectifier</p><p></p><p>D16,17- P6KE6.8A Transient Voltage Suppressor</p><p></p><p>Q1- IRFZ24 Power Mosfet</p><p></p><p>Q2,Q7- 2SC945 NPN Transistor</p><p></p><p>Q3,Q4- 2SC3205 NPN Transistor</p><p></p><p>Q5- 2SA1273 PNP Transistor</p><p></p><p>Can't see a Q6 (?)</p><p></p><p>(R3 is 15kohms - often discoloured and unreadable visually due to overheating.)</p><p></p><p>Edit: Added official schematic pdf. Much better than my effort.</p><p></p><p></p><p>Llew</p></blockquote><p></p>
[QUOTE="Llew, post: 138027, member: 175007"] I've drawn up a circuit diagram for the SMPS of this receiver. More for my own curiosity and not exactly of professional quality, however it shows all components including positioner relays etc. It might come in handy for circuit tracing in the (likely) possibility of a fault occuring in the power supply. Here's a list of the main semi's - TR1- BT137 Triac IC1- 1H0565 Power Switch IC5- Power Switch (for motor drive) BD- PBS606G Bridge Rectifier IC2,6,8- L9941 Optocouplers IC3,4,7- KA431 Prog.Shunt Regulators D5- SB860 Schottky Diode D13- U16C20 Power Rectifier D16,17- P6KE6.8A Transient Voltage Suppressor Q1- IRFZ24 Power Mosfet Q2,Q7- 2SC945 NPN Transistor Q3,Q4- 2SC3205 NPN Transistor Q5- 2SA1273 PNP Transistor Can't see a Q6 (?) (R3 is 15kohms - often discoloured and unreadable visually due to overheating.) Edit: Added official schematic pdf. Much better than my effort. Llew [/QUOTE]
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The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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