117190-00607-02 Rev CDetailed OperationTroubleshootingThis section contains information to troubleshoot the GMX 200 when improper operation is observed. The fol-lowing table lists possible problems you could encounter. Examine the possible causes of the problem and take theaction listed to correct the problem. If you cannot correct the problem, contact your dealer. If your dealer is unavail-able, contact the Garmin factory at the address and phone number listed in the preceding section. Be sure to havethe information from the System Info page and the data card available before you contact your dealer or the factory.Problem Possible cause ActionUnt does not power on orblank screenWrng problemImproper brghtness settngLow temperatureData cardCheck for proper wrng and connectons. Check the fuse/crcut breakerCheck the dsplay brghtness settngAllow the GMX 200 to heat up for approx. 60 secondsMake sure the data card s fully nsertedUnt fals durng start up test Data cardSystem falureMake sure the data card s fully nsertedContact your dealer or the factoryPOS data flag shows Antenna or wrngPoston source wptPoston source seral dataInterferenceInstallaton setupCheck the antenna and wrng of your GPS navgatorEnsure that a waypont s selected as the current destna-ton and a Nav flag s not shownEnsure that the seral data output s configured properlyHave dealer/nstaller check for any nterference sourcesHave dealer/nstaller check for proper GMX 200 setupALT (Alttude) flag Seral alttude source Ensure the seral alttude encoder s powered up and work-ng properlyHave dealer/nstaller check for proper nstallaton and setupof the encoderIf alttude data s provded by an Apollo GX product, ensurethat the GPS poston has been acqured and a waypont sselected as the current destnatonTroubleshooting
