Special version Meade LX90/#909APM Guiding Interface |
Here is the specific LX-90 version of my interface, autopowered by a modded #909APM to use my interface without the 9volt battery :o) |
WARNING !!! i'm not responsible for any damage to your APM, Scope or Computer, if you are not
sure of doing this interface and cables correctly !!! |
Here is the "Open Prototype" of the specific LX-90 interface.... Not a lot beautiful, but fully functionnal !!! ;o) |
Let's first see the electronic shematics of the #909APM powered interface : |
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Here are the "special" components of the interface... From left to right: 8x10Ko resistors train, ic4066B, ic78L05 and APM type connector Also needed : 8 resistors 470 Ohms 1 resistor 1 Ko Ohms 1 red LED (3mm diameter) 1 on/off switch a 6 wires phone type cable to go to the CCD port a 4 wires + ground type cable to go to the // port 1 // connector |
Here is the mod of the #909APM to power the interface : |
The connector from the interface and the #909 modified APM... |
On this side of the APM printed board, you must solder the ic78L05 : pin 3 to the +10volt pin 2 to the ground... |
On the other side of the APM printed board, you must solder a wire between : from pin 1 of the ic78L05 : to point 1 of the printed board... (the point 1 of the #909APM is not connected to anything on the printed board before the mod) That's all !!! You now have a full options #909APM to power the interface :o) |
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