Nikon NE-101 - Warning Messages and Error Handling; System Warning Messages and Countermeasures

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WARNING MESSAGES
If one of the following warning messages is displayed, proceed to the
corresponding countermeasure.
Message
Contents : Cause Countermeasure
SET VA AGAIN
Vertical overspeed:
Encoder rotation
exceeds standard speed
(1.5rps)
Tilt the telescope across
the horizon on face-1 to
reset.
RST HA AGAIN
Horizontal overspeed:
Encoder rotation
exceeds standard speed
(1.5rps)
Hold down the [RST]
key till the third beep
sounds to reset.
If one of the following warning messages is displayed, contact your dealer.
Message
Contents : Cause Countermeasure
E-25 Theodolite RAM error:
EEPROM Read
Error
Data error at EEPROM:
Contact your dealer.