iOptron G-R80 ユーザーズマニュアル

 
 

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instrument to excessive heat or moisture. It 
is best to store the telescope in its original 
box with the altitude lock knob unlocked. If 
shipping the telescope, use the original box 
and packing material to protect the 
telescope during shipment. 

When transporting the telescope, take care 
not to bump or drop the instrument; this type 
of abuse can damage the optics or affect 
the GOTO tracking accuracy.  

The following suggestions may be helpful 
with operation of the SmartStar

®

 E mount or 

telescope. 

The power indicator light on the mount 
does not come on or there is no 
response when pressing hand 
controller’s arrow keys: 
1.  Verify that the power switch on the 

mount is in the ON position.  

2.  Verify that the hand controller cord is 

firmly connected to the HBX port on the 
mount, or switch the cord to the other 
HBX port.  

3.  Check the power source, which include: 

o

 Using the battery? Are the batteries 

installed correctly? Are the 
batteries fresh? How long have 
they been used? (frequent slew 
and GOTO will deplete battery 
power very quickly) 

o

 Using AC or DC adapter? Check the 

plugs to the mount and to the 
power outlet. 

o

 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. 

1.  If the telescope does not respond to 

commands, set the power switch to OFF 
and then back to ON.  

2.  If the telescope does not slew after 

power is applied or if the motor quits or 
stalls, verify that there are no physical 
obstructions that would impede 
telescope movement. 

Cannot seem to focus (No image 
appears in the eyepiece): 
1.  Confirm that the dust cap has been 

removed from the telescope. 

2.  Keep turning the focus knob. Your 

telescope has a fine focusing 
mechanism which allows you to focus 
an image very precisely. However, this 
means that you may have to rotate the 
focus knob 20 to 40 complete turns to 
achieve focus, particularly the first time 
you use your telescope. After that, fewer 
turns will be needed. 

Images through the eyepiece appear 
unfocused or distorted: 
1.  The magnification used may be too high 

for the seeing conditions. Back off to a 
lower power eyepiece.  

2.  If inside a warm house or building, move 

outside. Interior air conditions may 
distort terrestrial (land) or celestial 
images, making it difficult, if not 
impossible, to obtain a sharp focus. For 
optimal viewing, use the telescope 
outside in the open air instead of 
observing through an open or closed 
window or screen.  

3.  If viewing a land object on a warm day, 

heat waves distort the image.  

4.  The optics within the telescope need 

time to adjust to the outside ambient 
temperature to provide the sharpest 
image. To "cool down" the optics, set 
the telescope outside for 10 to 15 
minutes before observing begins. 

Error Message “Warning! Motor driver 
overloaded.” 
1.  Check the hand controller cord. Unplug 

it and re-plug into, or plug it into another 
HBX port. 

2.  Check the power source.