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• Extension cord: Make sure the cord is in good condition. Power drop along the
extension cord has been known to cause this error message. Also check all the
plugs and connections.
(4) Check the hand controller cord. Unplug it and re-plug into the other HBX port.
Error Message “Warning! Can not communicate with DEC motor controller.”
(1) Check the hand controller cord. Unplug it and re-plug into another HBX port.
(2) Check the power supply, which include:
• Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
• Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
• Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
The object is jumping up and down in the eyepiece or over-slewed, and other unexpected
slew behavior or movement.
(1) Use most updated firmware.
(2) Set backlash to 0 in both DEC and RA.
(3) Check the power supply, which include:
• Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
• Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
• Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
(4) System balancing.
The telescope does not GOTO the right object, or the alignment is always wrong:
(1) Leveling (very important).
(2) Site information (minutes “ahead of “or “behind” UT, DST).
(3) System balancing.
(4) Use most updated firmware.
(5) Select right mount type (A/A or EQ).
(6) Starting form backlash of 0 in both DEC and RA.
(7) Check the power supply, which include:
y Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
y Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
y Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
7.4. iOptron Customer Service
If you have a question concerning your telescope, contact the iOptron Customer Service
Department. Customer Service hours are 9:00 AM to 5:00 PM, Easter Time, Monday through
Friday. In the unlikely event that the telescope requires factory servicing or repairs, write or call
the iOptron Customer Service Department first, before returning the telescope to the factory,
giving full particulars as to the nature of the problem, as well as your name, address, and