Installation manual

Troubleshooting
Apollo MX20 Installation Manual
53
Table 10 - Troubleshooting Guide
Problem Cause Solution
enabled in the install pages.
Unit posts message indicating
‘Special’ terrain clearance mode
after power-up.
Incorrect terrain clearance mode
improperly set.
1. This is normal for special
‘Capstone’ support.
2. General aviation usage should
have the terrain mode set to
‘Normal’ in the install pages.
TCAD 1. Unit is not Traffic capable.
2. Data port configuration
incorrect.
3. Traffic function not enabled.
4. TCAD unit not powered up; not
functioning properly.
5. Wiring connections are incorrect.
1. Ensure that the model MX20 is
traffic capable.
2. Ensure that the data port
configuration is correct and
matches how the unit is wired for
the serial interface.
3. Ensure that the traffic function is
enabled.
4. Ensure that the TCAD unit has
power applied and is functional.
5. Verify serial wiring and pin
connections.
SKWY 1. Unit is not Traffic capable.
2. Data port configuration
incorrect.
3. Traffic function not enabled.
4. Skywatch unit not powered up;
not functioning properly.
5. Wiring connections are incorrect.
1. Ensure that the model MX20 is
traffic capable.
2. Ensure that the data port
configuration is correct and
matches the model/unit that is
wired for the 429 interface.
3. Ensure that the traffic function is
enabled.
4. Ensure that the Skywatch unit
has power applied and is
functional.
5. Verify 429 wiring and pin
connections.
RDR (Amber) 1. Unit is not radar capable.
2. Data port configuration
incorrect.
3. Radar function not enabled.
4. Radar unit not powered up; not
functioning properly.
5. Wiring connects are incorrect.
1. Ensure that the model MX20 is
radar capable.
2. Ensure that the data port
configuration is correct and the
model radar head is set correctly.
3. Ensure that the radar function is
enabled.
4. Ensure that the radar unit has
power applied and is functional.
5. Verify 453/708, 429 and discrete
wiring and pin connections.