D4K and Mirage 4K Troubleshooting
D4K and Mirage 4K Troubleshooting Technical Reference
13
020-101452-03 Rev. 1 (10-2014)
Call log reference number: 421612
Solution
1. Check the communication line to the ballast for loose/damaged pins or connectors.
2. Check AC supply to the ballast.
Liquid Cooling Flow Meter – Flow Impeded alarm
The Liquid Cooling Flow Meter – Flow impeded alarm occurred.
Solution
1. Check the coolant lines for evidence that the flow is occurring.
2. Check the alarm status for any Temperature alarms.
3. If the coolant is flowing and no Temperature alarms have occurred, the Flow Impeded alarm
can be ignored as a temporary measure until the root cause for the error is found.
4. Do not ignore other system generated alarms.
5. If no flow was detected in step 3, replace the Liquid Cooling module.
Column swapping in the image
This problem may present in various ways and can be referred to as color separation, bad
convergence, column swapping, scrambled image, and/or vertical banding. This problem can be
intermittent or persistent, with random occurrence on some units but not on others.
Details
The updated memory controller on the Light Engine formatter FPGA corrects this problem and is
available in the D4K60/Mirage 4K v1.3.0+ software.
