147
4
4.
MAINTENANCE
4.1
Troubleshooting
If the device does not function properly, troubleshoot with the table below before contacting NIDEK or
your authorized distributor for repairs.
Symptom
Remedy
Turning on power to the device does
not illuminate the pilot lamp or turn on
LCD touch-screen.
• The power cord may not be plugged.
Securely plug the power cord again.
The LCD touch-screen suddenly
blacks out.
• If the pilot lamp is blinking, the device is in Sleep mode.
Operate any control of the device.
The main unit cannot be moved
horizontally.
• The main unit may be locked by the main unit locking knob.
Turn the main unit locking knob to release the lock.
The halogen lamp for observation does
not illuminate.
The xenon flash lamp does not
illuminate.
• Only properly trained service personnel are allowed to replace the
halogen or xenon flash lamp.
Contact NIDEK or your authorized distributor.
For replacement parts, see “
