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Matthew L. Bisque Posted: 02-08-2006 12:16 PM

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RESOLUTION

If the Paramount ME control system fails to initialize properly, the problem can be caused by a number of different reasons, including:

Where to start:

1. Replace the SloBlo fuses in the Adaptor Panel. The Paramount ME manual describes this procedure.
2. Remove all guider cables, the joystick, and every other cable that may be plugged into the Adaptor Panel. Critical: there should be nothing plugged into the port labeled Aux I/O on the Paramount ME Adaptor Panel. This port contains four general-purpose, high-powered, driver outputs that can be used to drive a DC servomotor or a stepper focus motor, or other device. There are also two general-purpose pins that can be used as inputs or outputs. We are currently looking at possible uses for these functions such as a “abort slew” button, limit switch, or other use. If the behavior persists, proceed.
3. Verify that the voltage coming out of the 48V power supply to is actually 48 volts. If not, then the power supply may have failed. Contact Software Bisque for details on how to proceed.
4. Access the Adapter Panel electronics by removing the black Adapter Panel cover on the back of the mount. This procedure is described in the Paramount ME Electronics Upgrade Instructions PDF document. There is a 6-conductor cable (see page 9) that carries three pair of leads for 48 volts, 12 volts and 5 volts. Each is labeled on the Adapter Panel board. Verify that these voltages are correct (that is, the first two wires are 48 V, and a ground, the second two are 12 V and ground, and the third set is 5 volts and ground). The photograph of the Adaptor Panel board on page 4 of this document shows these connections.
5. If the mount still will not power, then the issue may reside in the main controller board, or with one or more of the internal cables. Remove the RA side panel (described in the Paramount ME manual). Gently press each connector on the Adaptor Panel and main controller board to ensure they're properly seated. Also, make sure the cables are not damaged. Many customers report that rodents (field mice in particular) enjoy the flavor of the Paramount ME's internal wiring, and can destroy the internal cabling.

 If the behavior persists, please contact Software Bisque for more information on how to proceed.