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RGB 138xi, RGB 158xi Installation and Operation
Installation and Operation, cont’d
3-
xxvii
Product X Operation
A
Appendix A
Specifications
RGB 138xi, RGB 158xi
2-20
Troubleshooting
When the interface, computer and output devices have
been properly installed, and the power is turned on, the
image should appear on screen, and sound should be
audible.
If the image does not appear or there is no sound
1. Ensure that all devices are plugged in.
2. Make sure that each device is receiving power. The
power indicator LED should light if the interface is
powered on.
3. Check the cabling and the audio connector wiring, and
make adjustments as needed.
4. Verify that the video input termination DIP switch on
the RGB 138xi and the ID bit termination DIP
switches on the RGB 158xi have been set correctly.
5. For digital display devices, try switching between ADSP
and DDSP using the rear panel DDSP DIP switch.
6. Call Extron’s customer support hotline if needed.
If the image does not display correctly
1. If the output image looks too green, make sure that the
sync on green feature (SOG DIP switch) is turned
off.
2. If the picture bends or flags at the top of the screen, set
the SERR (serration pulse) DIP switch to Off.
3. For a display device that experiences intermittent
glitches, try switching between ADSP and DDSP
using the rear panel DDSP DIP switch.
4. If the picture “hangs off” the edges of the screen, adjust
the centering controls.
5. If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the GAIN/PEAK
setting.
6. If the image still does not display correctly, call Extron’s
customer support hotline.