VDX 404 Automotive Video Switch

VDX 404 makomaile Fri, 2014-04-18 09:52
VDX 404 WHAT WORK YESTERDAY DOES NOT WORK TODAY. NO REAR CAMERA ONLY LEFT AND RIGHT CAMERA VIEWS. WITH SOME WIRE SWITCHING I HAVE A REAR CAMERA THAT IS WORKING BUT DOES NOT GET THROUGH THE VDX 404 SYSTEM. I SWITCHED THE DRIVERS SIDE CAMERA OUTPUT #2, AND PLUGGED IN THE REAR CAMERA OUTPUT TO SEE THE REAR. CAN THIS VIDEO SWITCH LOOSE IT'S PROGRAMING MEMORY? CAN IT BE RESET? HOW TO TROUBLE SHOOT IT WITHOUT A PC CONNECTION? IT HAS WORKED FOR 7 YEARS. DID IT DIE OR COULD IT BE FIXED?