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m70L Installation & Configuration Guide 81
Basic Troubleshooting
Use the following troubleshooting tables to diagnose and resolve common
problems.
If your screen shows black or a test pattern
Do This Result Explanation / Further Action
1Press
MONITOR on the
remote.
No menu appears The backlights may not be lit. On
the remote, press
ON.
If the screen is still black, go to 4.
A menu appears Check if the “Curtain or Test
Pattern is displayed” message (in
red) appears on the menu.
If it does not appear, go to 3.
If the message does appear, go
to 2.
2Press
CURTAIN once on the
remote. If the message does
not disappear, press
CURTAIN again.
The message has not
disappeared
See “m70L doesn’t respond to
remote control” on page 82.
The message has
disappeared
If the correct source does not
appear, go to 3.
Unit Status
m70L1920 x 1080
010-0781 Rev 00
Mode ID: 123 HPer: 3178 VLines: 525
Curtain or Test Pattern is displayed
Backlight Status OK
Internal Temperature: 32ºC