Extron Electronics CIA112 User Manual

Page 14

CIA112 Operation Manual - V1.3 01/31/01

Problem: The power LED is on but there is no image on the display device.

Solution: The vertical and horizontal sync wires may be reversed. Check the RGBHV

cable connections at the interface output and at the display device input to make sure that
the yellow wire is carrying Horizontal Sync signal information and the black wire is being
used for Vertical Sync.

Problem: The power switch is turned on, but the front panel power LED is dark.

Solution 1: Make sure that the power supply is properly terminated to both the CIA112

power connector and the A/C source.

Solution 2: Make sure the A/C source is live.

Problem: The output image is very dark.

Solution: The CIA112 horizontal position control may be set off to an extreme setting

or may be interacting poorly with the horizontal position control on the display device.
Follow the horizontal position adjustment procedure on page 8.

Problem: The local monitor looks fine but the image on the Data Projector / Data Display is
wavy or has vertical bars in the picture.

Solution 1: Set the interface to RGBHV output.

Solution 2: Disable the horizontal position control.

Solution 3: LCD / DMD displays often have an adjustment called Phase Adjust or Fine

Phase Control. This control should be adjusted to provide the best image.

Problem: The output image is missing a color.

Solution: Possibly the 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 the green is displayed or not).

Problem: The output image is too green.

Solution: The dipswitch settings may be set for sync on green output and the display

device doesn’t like that format. Try changing the dipswitches to output an RGBS or
RGBHV signal.

Problem: The horizontal position control is not working.

Solution 1: Check the dipswitch settings to see if the horizontal position control has been

disabled.

Solution 2: The input setting may be RGsB (sync on green). The horizontal position

control does not work with RGsB input signals.

If problems persist, call INLINE Technical Services at (714) 921-4100 for further assistance.