Pinpoint Test A: Permanent Blank Screen Tests
- A1: PERMANENT BLANK SCREEN TEST 1 NOTE: A blank screen is the default display when the camera is not transmitting an image.
- Refer to the appropriate system wiring diagrams and check the power and ground connections to the Image Processing module B (IPMB) or any of the individual cameras
Are the power and ground circuits within specification?
Yes: GO to A2.
No: Repair power or ground circuit as necessary
- Refer to the appropriate system wiring diagrams and check the power and ground connections to the Image Processing module B (IPMB) or any of the individual cameras
- A2: PERMANENT BLANK SCREEN TEST 2 CAUTION: Do not probe the coaxial cable connectors as they are prone to damage.NOTE: A Direct Current (DC) resistance measurement is not a reliable test method as the system operates at low voltage and high frequency.
- Check the integrity of the Image Processing module B (IPMB) and individual camera coaxial cable connectors
- Check the coaxial cable for excessive bending, clamping and insulation damage
Are any of the camera coaxial cables disconnected or damaged?
Yes: Reconnect or install a new coaxial cable as necessary
No: Install a new camera