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500W Series 

190-01226-03 Rev. 5 

Instructions for Continued Airworthiness Bell 206B 

Page 12 of 23 

Problem Possible 

Cause 

Solution 

OBS indication on 
500W Series unit 
does not agree with 
OBS setting. 

  500W Series unit resolver input 

not calibrated correctly. 

  Resolver has not been 

calibrated. 

  Check wiring and calibration. 

500W Series unit is 
not receiving 
heading from 
compass system 
(ARINC 429 
heading input used) 

  ARINC 429 input port speed 

not correct 

  Check ARINC 429 input port speed 

setting for port that device is 
connected to and verify that the 
speed is correct for that device. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

RMI pointer does 
not indicate correctly 

  Desired RMI source has not 

been selected. 

  Check the OBI source selection on 

the Main CDI/OBS Config page. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

Tuning data not 
updating DME 

 Incorrect configuration. 

  Check the DME Channel Mode on 

the VOR/LOC/GS CDI page. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

ARINC 429 device 
is not receiving data 
from the 
500W/530W. 

  500W Series unit ARINC 429 

output not configured correctly. 

  Check ARINC 429 output port setting 

for port that device is connected to. 

  ARINC 429 input port speed 

not correct 

  Check ARINC 429 input port speed 

setting for port that device is 
connected to and verify that the 
speed is correct for that device. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

RS-232 device is 
not communicating 
with the 
500W/530W. 

  500W Series unit RS-232 port 

not configured correctly. 

  Check RS-232 port setting for port 

that device is connected to. 

  Improper setup on the remote 

device.  

  Verify the configuration of the other 

device.  

  Device not compatible, or 

improper connection. 

  Verify 500W Series unit RX is 

connected to remote device TX and 
500W Series unit TX is connected to 
remote device Rx.  

  Multiple TX lines connected 

together. 

  Verify that there is only one TX 

source per RX port. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

Fan Fail 
Annunciation. 

  Wiring connections are 

incorrect. 

 Check 

wiring. 

  Fan has failed. 

 Replace 

fan. 

 

 

 

Summary of Contents for 500W Series

Page 1: ...2 USA Record of Revision Rev Date Description of Change 1 07 16 10 Initial Release 2 08 11 10 Updated ref doc revisions in section 2 1 revised part number and weight of item 2 in table 2 2 1 3 04 09 1...

Page 2: ...ations contained herein are the property of Garmin International or its subsidiaries and may not be reproduced or used in whole or in part as the basis for manufacture or sale of products without writ...

Page 3: ...l Operating Information 8 2 4 Servicing Information 8 2 5 Periodic Maintenance Instructions 8 2 6 Troubleshooting Information 11 2 7 Removal and Installation Information 20 2 8 Diagrams 21 2 9 Special...

Page 4: ...trolled in accordance with the Garmin document control system When this document is revised refer to Section 2 15 for information on how to gain FAA acceptance or approval and how to notify customers...

Page 5: ...tallation of a 500W series GPS WAAS Nav Com unit under the Garmin Bell 400W 500W HTAWS STC SR02080SE Definition of Abbreviations See Section 1 5 Precautions None Units of measurement None Referenced p...

Page 6: ...nnunciator panel Installation of optional remote HTAWS annunciators and optional cyclic stick switches for remote control of COM and HTAWS functions are also covered under this STC The 500W Series uni...

Page 7: ...g whether or not a dual navigator system is installed 2 2 1 Weight and Balance Information ITEM DESCRIPTION PART NUMBER WEIGHT LB Moment ARM IN LONGITUDINAL LATERAL 1 GPS 500W Unit Only 011 01062 XX 5...

Page 8: ...n application of power to the units and built in test is continuously executed Detected errors are indicated on the equipment via failure annunciations Maintenance of the components installed by this...

Page 9: ...milliohms Reinstall the 500W Series unit in the mounting rack GPS Antennas Only if antenna is installed by this STC Every 2000 flight hours or ten 10 years whichever is first Perform an electrical bon...

Page 10: ...of 20 000 hours This life may be more or less than the rated time depending on the operating conditions of the 500W Series unit Over time the backlight lamp may dim and the display may not perform as...

Page 11: ...m sources of interference The GPS signal levels are very low Improper antenna installation or coax routing Check GPS antenna installation connections and cable routing The GPS antenna must be mounted...

Page 12: ...S CDI page Wiring connections are incorrect Check wiring ARINC 429 device is not receiving data from the 500W 530W 500W Series unit ARINC 429 output not configured correctly Check ARINC 429 output por...

Page 13: ...able The ADS B traffic system is reporting that the CSA application has failed Traffic alerting on ADS B traffic is unavailable Ensure the aircraft has a clear view of the sky If problem persists cont...

Page 14: ...y still operate regardless of the displayed frequency COM needs service 530W only The unit has detected a failure in its communications transceiver The COM transceiver may still be usable Contact Garm...

Page 15: ...must not be used for actual navigation Check that the DEMO MODE SELECT pin P5001 Pin 75 is not connected G S has failed 530W only The unit has detected a failure in its glideslope receiver Contact Gar...

Page 16: ...chnical support GTN transfer canceled version mismatch The protocol version or database version don t match between the GTN and GNS units Load the most current cycles of the navigation database to eac...

Page 17: ...support NRST key stuck GPS 500 only The NRST key is stuck in the enabled or pressed state Try pressing the NRST key again to cycle its operation If problem persists contact Garmin technical support OB...

Page 18: ...rted by the hardware Reconfigure the unit TERRAIN configuration has changed The unit s terrain settings have changed since it was last turned on in normal mode Reconfigure TERRAIN settings Contact Gar...

Page 19: ...transfer key is stuck 530W only The remote VLOC transfer switch is stuck in the enabled or pressed state Try pressing the switch again to cycle its operation Contact Garmin technical support VLOC tra...

Page 20: ...bezel until the unit is firmly seated in the rack NOTE The installation configuration and user settings are stored internally in the 500W Series unit and will be lost when the 500W Series is replaced...

Page 21: ...LH side center console cover plate 2 Remove copilot side LH side center console cover plate 3 Disconnect cooling fan electrical connector located under cooling ports on fan 4 Extract the three 3X cool...

Page 22: ...n Drawing FASTENER TYPE AND TORQUE 6 32 Screw 4 2 inch pounds 6 32 Screw 12 15 inch pounds 8 32 Screw 12 15 inch pounds 10 32 Screw 12 15 inch pounds 10 32 Screw 20 25 inch pounds 500W Unit Mounting R...

Page 23: ......

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