Yamaha DPX-1200 - Manual (Page 62)

58
Troubleshooting
Cause Remedy Problem
Image is unstable.
The image becomes
cloudy.
Cannot adjust focus or
zoom, or the vertical
position of the lens.
Remote control does
not work correctly.
There is condensation on the DPX-1200.
[Lens Adjustment Lock] in the menu is set
to ON.
The batteries are exhausted.
The remote control sensor is not set
correctly.
There is a fluorescent lamp near the
remote control sensor being used.
The remote control code switch is
incorrectly set.
Switch the DPX-1200 power off until the
condensation disappears.
Set correctly.
Set [Lens Adjustment Lock] to off.
Press the MENU button to display the menu
and select [Setup]
[Lens Adjustment
Lock].
Replace both batteries with new ones.
Set correctly.
Press the MENU button to display the menu
and select [Setup]
[Remote Control
Sensor].
Turn off the remote control sensor near the
fluorecent lamp, and use the other remote
sensor.
Set the remote control code switch to the
same ID number as the setting on the
“REMOTE CONTROL ID” in the setting menu.
The connection cables are not correctly
attached to the connectors. Correctly connect the cables to the
appropriate connectors.
The DPX-1200 does not
turn on. The power cable is not plugged in.
You attempted to turn on The DPX-1200
immediately after turning it off.
The filter cover is not correctly attached.
The lamp cover is not correctly attached.
Wait for approximately two minutes.
<MEMO>
• To protect the lamp, you cannot turn on
power for two minutes after you turn it off.
Plug the power cable in firmly.
Correctly attach the filter cover.
Correctly attach the lamp cover.
No picture. The lens cover has not been removed.
The DPX-1200 is not correctly connected
to the other components.
The input signal has not been correctly
selected.
The picture is turned off.
The computer is not set to display on the
external monitor.
Remove the lens cover.
Check the connections.
Select the correct input signal with the
INPUT button.
Press the AUTO button on the remote
control.
Use the menu to adjust the signal setting
to suit the input setting.
[Initial]
Press the HIDE button again to cancel the
HIDE function.
Set the computer to display on the external
monitor. (Refer to the computer operating
instructions.)
Press the FOCUS button, and adjust the
focus.
Adjust the projection angle and direction,
and the height of the DPX-1200.
Picture is blurred. The lens is not correctly focused.
The screen and the DPX-1200 are not
facing each other directly.
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