Model: 14000 Series Transmitter with Internal or External Antenna
All or some of the below symptoms may be present.
Transmitter front display does not light up or has light black boxes across it.
Red LED is flashing on the Transmitter front display.
No information is displayed on the Transmitter front display.
This may be due to a power issue or communication between the EPROM chip and the front screen.
Using a multimeter, check for 9V at least 2.0A output from the power supply to the Transmitter.
If the power to the Transmitter is not correct, see topic Transmitter continues to power cycle and does not stay synced.
If the power to the Transmitter is correct, its red LED is not flashing, and clocks are not indicating a loss of signal or a clock can be power cycled and resets its time, the Transmitter is more than likely broadcasting and the issue is the communication to the Transmitter's front display screen.
If the power to the Transmitter is correct, its red LED light is flashing, and the clocks are indicating a loss of signal or power cycling a clock does not reset its time, the Transmitter may have more issues other than the screen.
Step 1 - power down Transmitter and disconnect connections.
Disconnect its power supply.
Disconnect its backside connections.
Internal Antenna: remove the Internal Antenna, disconnect GPS cable, and any other cable that may interfere when turning unit upside down.
External Antenna: disconnect the LMR 400 Coaxial Cable, grounding wire, and GPS cable.
Step 2 - verify EPROM chip and wiring ribbon/harness.
Step 3- Reconnect back panel and connections.
Reconnect the back panel with the four Philips half-inch screws.
Reconnect the Transmitter's power supply and all connections.
From the Transmitter front display, verify the correct time, day, date, and channel number is displayed.
If these steps do not resolve the problem, the Transmitter may be required to be replaced.