Extron Electronics IN2160 User Manual

Page 10

TROUBLESHOOTING

The display device connected to the IN2160

output has a bad/scrambled image.

Solution 1: Verify that the correct input cable is being used.
Solution 2: The display device connected to the output of the interface may not be compatible with the

computer output. VGA runs at 31.5 KHz, but SVGA can be as high as 48 - 58 KHz with
newer modes such as 1600 x 1200 running at 80+ KHz!.

Solution 3: Check the dip switch settings to make sure the unit is putting out a sync format that the

display device can use. For most applications the default dip switch settings (see Page 5)
will work best.

Solution 4: The RGBS or RGBHV cable may have a bad sync line. Try running the sync through

another cable.

The output image is very dark.

Solution: The horizontal position control may be set off to an extreme position or may be interacting

poorly with the horizontal position control on the display device. Follow the horizontal
position adjustment procedure listed on Page 4.

The output image is missing a color.

Solution: Possibly the output RGBS or RGBHV cable is bad. Try switching connections on the output

to verify that the bad color’s cable is OK (Example: If there is no red, try running the green
output through the red cable and see if green is displayed or not.)

The output image is very bright and overdriven looking with poor contrast.

Solution 1: The signal may be unterminated. Check the internal termination jumpers to ensure they are

set for 75 Ohm termination.

Solution 2: Check the contrast and brightness settings on the display device. Many CRT type display

devices look best with the contrast set toward the upper end of the adjustment range (75 -
95%) and the brightness set towards the middle of the adjustment range (40 - 60%).

The output image is too green.

Solution 1: The dip switches may be set for Sync on Green output. Try changing the dip switches to

output an RGBS or RGBHV signal.

The output image is doubled, with two images displayed side-by-side.

Solution: The display device may not be compatible with the horizontal scan rate of the computer.

This problem often occurs when a 31.5 KHz VGA signal is sent into an RGB monitor which
is only compatible with signals at 15.75 KHz.

If problems persist, call INLINE Technical Services at (800) 882-7117 for further assistance.