Vertical color bars on off-air channels.
The color bar test pattern is often displayed when off-air television stations have gone off the air for the evening or are not transmitting programming.
This is a normal display on off-air channels that are not transmitting programming. Wait for programming to resume.
No troubleshooting necessary.
CM-7500TB1 CM-7500GB16 CM7500GB16 CM7500TB1 CM-7500 CM7500