Install Manual Part 3

ManualsBrandsL-3 Communications, Avionics Systems ManualsElectronicsSkyWatch Traffic Advisory System

SKY497

Installation Manual

4-16

Rev. C

Table 4-2. Installation Related Error Messages (Continued)

ERROR NO. MESSAGE Remarks

ERROR 020 Barometric Altitude Input a. Check altimeter source. Is the unit turned on and been given enough

time to warm up.

NOTE

When interfacing via an ARINC 429 serial data bus, at power-up

the TRC must adjust (auto-baud) to the speed of the incoming

data. Normally the TRC will lock-on after approximately 15

seconds.

b. Cycle power.

c. Ensure that barometric altitude is input from only one

source (Gray Code or ARINC 429, not both).

d. Encoded inputs can be checked from the system configuration screen

(para 4.4.3.2, Configuration - Page 2).

e. Using the Data Monitor, verify barometric source and altitude

(para 4.4.3.3).

f. Check wiring associated with altimeter source.

ERROR 021 Power Supply a. Using the Data Monitor, observe internal voltage measurements

(para 4.4.3.3, Data Monitor - Page 5).

b. Check aircraft power source.

c. Check power input at mating connector.

P8-A +28V (10.5-34V PWR)

P8-B +28V_RET (AIRCRAFT PWR RETURN)

ERROR 30 Check Configuration Configuration jumpers not saved or changed and need validated.

a. Using the Configuration menu, verify pages 1, 3 and 4 are correct

then save (para 4.4.3.2, Configuration).

b. Check wiring associated with configuration jumpers.

ERROR 152 HDG Invalid synchro XYZ input.

a. Check heading source.

b. Verify status of heading configuration jumpers (input source and flag

sense - para 4.4.3.2).

c. Using the Data Monitor, verify heading data (source, heading

& flag - para 4.4.3.3).

d. If the heading signals become valid, the system will recover

automatically.

e. Check wiring associated with compass heading.

ERROR 153 HDG Invalid heading reference (400 Hz).