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VSI-Pro VIDEO SERIAL INTERFACE
FUNNY CHARACTERS OR GARBAGE ON SCREEN
1. Power disconnected for too long and memory is lost.
2. Lightning strike, power line noise or power surge.
3. CR boards- make sure data cable is plugged in correctly.
4. Ground and Data wires are reversed. Verify correct DB-9 cable wiring.
HOW TO DO A MASTER RESET ON VSI-PRO
1. Press and hold in simultaneously the “Down”, “Up” and “Set” buttons.
2. While holding those three buttons in, press and release the “Reset” button and then release the other three
buttons.
3. This will display the copyright notice.
4. Restores the VSI-Pro to all the factory default settings.
MY CUSTOMER IS CHANGING REGISTERS. WILL THE VSI-PRO THEY HAVE WORK WITH THE NEW REGIS-
TER?
This is a tricky one. The VSI-Pro interfaces to over 400 different registers, and as a result, there are several
versions of software needed to work with all these different systems. The probability the VSI-Pro will work with a
new system is relatively high, especially if it’s Version 13 based. The chances any additional boards or boxes will
work is lower, unless your customer is staying with the same manufacturer and within the same register series.
Contact AVE’s Product Support Specialists for additional help with this issue.
IF I INSTALL YOUR INTERFACE BOARD INTO A NEW REGISTER, WILL IT VOID MY CUSTOMER’S WAR-
RANTY?
If you are connecting to an external RS-232 port of the register, generally it does not void the warranty. But if you
want to add the interface board inside your new cash register, we will highly recommend you to contact the manu-
facturer of the cash register.
NOTE ?
The VSI-Pro requires 1V P-P +/- 20 percent, terminated @ 75 ohms.
APPENDIX A PROBLEM SOLVING GUIDE
CHARACTERS JITTER, JUMP, OR SKEW
1. Darken the gray scale of the characters.
2. The VSI-Pro requires the input video signal to be 1V P-P +/-20%, terminated @ 75ohms. If the voltage is too high
or low, then the VSI has trouble syncing the text to the video. Use an amplifier such as AVE’s VDA-601 to get the
proper level.
3. Poor input sync signals - too many AC coupled amplifiers in the video input signal.
4. Noisy or poor quality video source. Replace with better source.
5. Check for double termination.
6. Video level too high; VSI-Pro will clip video.
7. The text block is too close to the edge of the screen. Try repositioning the text block. Also, changing the size may
help.
8. Too much light in the video picture may cause character distortion. Reposition the camera or reduce the amount
of light to which the camera view is exposed. If the camera you’re using has an auto iris lens, try adjusting the iris
to average and then reduce or increase the level.