Grass Valley K2 Dyno Service Manual - Manual (Page 57)

02 February 2012 K2 Dyno Replay Controller Service Manual 57
LCD screen problems
LCD screen problems
Thermal problems
Power supply problems
If the power source and the power cord are OK, replace the power supply.
Problem Possible Causes Corrective Actions
Touching the screen does not
select the control The LCD screen needs
calibration On the K2 Dyno Controller
control panel, press the Shift, Fn,
and Goto buttons at the same
time to access LCD screen
calibration settings.
Screen turns on, but nothing
from Dyno controller is
displayed VGA connector or cable is
faulty. Replace VGA monitor.
Dyno controller system settings
have been tampered with. Restore default settings by
restoring the system drive image
from a recent backup image.
Problem Possible Causes Corrective Actions
The fans are noisy or otherwise
run erratically. The Dyno
controller overheats. This can
be accompanied by a message
indicating a temperature or fan
problem. Airflow is blocked.
A fan is not operating correctly.
Ensure adequate airflow around
the Dyno controller.
Listen/look at the chassis fan and
the power supply fan to verify
proper operation. If the fans are
not operating correctly, replace
the fan or power supply.
Problem Possible Causes Corrective Actions
The Dyno controller will not
power on or power fails while
the Dyno controller is in
operation. This can be
accompanied by a message
indicating a power supply
problem prior to the failure. The power source is faulty. Make sure your power source is
reliable.
The power cord is faulty. Try another power cord.
The Dyno controller is too hot.
The built-in overtemperature
protection can shut down the
power supply. Check for thermal problems.
Cool the Dyno controller.
The power supply is faulty. This
is indicated if the front panel
power indicator does not come
on. Replace the power supply