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APPENDIX A
HUM BARS or NOISE IN THE VIDEO
1. Check video coax connectors for proper grounding
2. Check power ground for proper connection
Possible large ground loop fault and must use Video Isolation Transformer
3.
VL VIDEO ERROR LED NOT ON BUT VIDEO LOOKS BAD
1. VL Video Error measures the level of the sync signal not the overall video peak to peak level. Therefore if sync
signal is correct and the video level is noisy or low or high the display might be too light or too dark. In this case
the addition of a video amplifier or adjustment of the camera settings might help.
VL VIDEO ERROR LED ON BUT VIDEO LOOKS GOOD
1. The VL Video Error measures the level of the sync signal not the overall video peak to peak level. Therefore it is
detecting the sync signla is low and amplifying the video signal to its maximum of 2 times. In this case the sync
is sufficient for the monitor or DVR to lock to and show a good image. If the inserted text from the RegCom-Pro is
stable then the RegCom-Pro is able to lock to this low signal. If the text jitters or is skewed then a video amplifier
must be placed in line with the RegCom-Pro to bring the signal up to at least .5V P-P so the AGC circuitry can adjust
to the proper output level.
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. ECR / TPIF 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 RegCom-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 RegCom-Pro to all the factory default settings and erases all user programming.
MY CUSTOMER IS CHANGING REGISTERS. WILL THE RegCom-Pro WORK WITH THE NEW REGISTER?
This is a tricky one. The RegCom-Pro interfaces to over 400 different registers. The probability the RegCom-Pro will
work with a new system is relatively high. 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 for sometimes opening the register does void the warranty.
RegCom-Pro POS / Cash Register Interface
68
PROBLEM SOLVING GUIDE
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