Specifications
Rosen Aviation 7” Widescreen Display
Document Number: 106211
Revision: B
Date: 04/17/14
Template: 4.4.1.6FM2; Revision A; 12/06/12
Page 27 of 31
9.1. Troubleshooting
If the display does not function properly, refer to the following troubleshooting table for symptoms
and possible solutions before contacting Rosen Technical Support.
Note: Always use a multimeter to verify voltages. Check actual results against the requirements
described in this manual.
Table 4 Troubleshooting tips
Problem
Possible Solutions
No video (signal)
Verify that the display is turned on and the video is on.
Verify that a signal is reaching the display using an oscilloscope or
another display.
Check the Power Control Pin. See the Power Mode settings on page 23.
Verify that the pinout is correct.
Screen is black
Verify that the display is receiving power.
Check the Power Mode settings on page 23.
Verify that the pinout is correct.
Verify that the video source is on and playing.
Verify all connections between the source and the display.
Image flickers
Try turning on the AGC (Automatic Gain Control) setting on page 23.
Verify that the signal cable is secure.
Verify that the vertical frame frequency is 60 Hz or less.
Distorted Image
Verify proper connections, per the latest O&I drawings.
Verify supported resolution.
Check the Power Mode settings on page 23.
Verify that the pinout is correct.
Verify that a signal is reaching the display using an oscilloscope or
another display.
Examine the display for pinched or damaged cables.
Wrong Colors
Verify proper connections, per the latest technical drawings.
If the screen colors are not what you expect, reset the current scheme.
For more information, see Reset Scheme on page 18 and Restore
Defaults on page 20.
9.2. Cleaning the Display
To clean the LCD, very gently wipe the screen with a clean, commercially approved LCD
cleaning cloth and alcohol-free LCD cleaning solution. Use one firm cleaning motion instead of
circular or repeated side-to-side scrubbing.