Garmin GPS 4000 Manual

The Garmin GPS 4000 is a high-performance aviation GPS navigator designed for general aviation aircraft. It features a large, sunlight-readable display, integrated terrain and traffic awareness, WAAS-enabled GPS/GLONASS receiver, and supports approaches with LPV, LNAV/VNAV, and LNAV minimums. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Navigation & Flight Planning 8. Safety & Alerts 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 6.5-inch sunlight-readable LCD display, Integrated WAAS GPS/GLONASS receiver, Terrain Awareness and Warning System (TAWS), Traffic Information Service (TIS), and Audio Panel Interface.

Feature	Description
Display	6.5-inch diagonal, 800 x 480 pixel resolution, sunlight-readable
GPS Receiver	WAAS-enabled, 14 parallel channels, GPS/GLONASS compatible
Terrain Awareness	Integrated TAWS with color-coded terrain alerts
Traffic	TIS (Traffic Information Service) compatible
Approach Capabilities	Supports LPV, LNAV/VNAV, and LNAV approaches
Database Storage	Jeppesen or Garmin aviation databases (28-day cycle)
Audio Interface	Integrated audio panel for COM/NAV radio control
Power Input	10-32 VDC, typical aircraft electrical system
Dimensions	6.75" W x 3.75" H x 10.5" D (mounting tray included)
Weight	2.8 lbs (1.27 kg)

Installation

Unpack and inspect contents. Installation should be performed by a certified aviation technician.

Mounting: Secure mounting tray to aircraft instrument panel using provided hardware.
Power Connection: Connect to aircraft 14V or 28V DC power bus through appropriate circuit breaker.
Antenna Connection: Connect provided GPS antenna to rear ANT connector; ensure clear view of sky.
Audio/Radio Interface: Connect to aircraft audio panel and COM/NAV radios per wiring diagram.
External Devices: Connect optional devices (traffic receiver, AHRS) to appropriate ports.

WARNING! Installation must comply with applicable aviation regulations. Ensure proper bonding and grounding.

First-Time Setup

Power on unit; follow initialization prompts.

Initialization: Allow GPS to acquire satellites (may take several minutes first time).
Database Loading: Insert database card or load via USB; confirm current database.
System Configuration: Set units (nm/km), altitude (feet/meters), time format, and magnetic variation.
Audio Setup: Configure COM frequencies, squelch, and audio panel interface settings.
Terrain/Traffic: Enable and configure TAWS and TIS alerts as needed.

CAUTION! Verify all settings before flight. Ensure database is current for intended flight operations.

Specifications

Display: 6.5-inch LCD, 800 x 480 pixels, sunlight-readable.
GPS Receiver: WAAS-enabled, 14 channels, GPS/GLONASS.
Accuracy: <3 meters horizontal (WAAS), <0.1 knots velocity.
Database: Jeppesen or Garmin NavData, 28-day update cycle.
Approach Types: LPV, LNAV/VNAV, LNAV, VOR, LOC, BC.
Terrain: Integrated TAWS (Class B).
Traffic: TIS compatible (requires compatible receiver).
Power: 10-32 VDC, 1.5A max at 14V.
Operating Temp: -20°C to +55°C (-4°F to +131°F).
Certification: TSO-C146c, TSO-C151b, TSO-C63e.

Controls and Settings

Front Panel: POWER knob (push for backlight), FMS knob (outer rotates, inner pushes), Direct-to (D) button, CLR button, MENU button.

On-Screen Controls: Cursor (CRSR) knob, ENT key, soft keys (F1-F6).

Navigation Pages: Map, Nearest, Waypoint, Flight Plan, Auxiliary. System Setup: Units, Time, Alerts, Audio, Display brightness/contrast. GPS Setup: RAIM prediction, SBAS (WAAS) enable/disable. Database Management: Load/verify databases, check expiration.

Connecting Devices

GPS Antenna: TNC connector on rear. Audio: 9-pin D-sub to audio panel. Serial: Two RS-232 ports for external devices (traffic, AHRS). USB: For database updates.

Ensure aircraft power is OFF before making connections.
Use proper aviation-grade connectors and wiring.
Follow pinout diagrams in installation manual.
Test all connections during system checkout.

Tip: Label all connections for future maintenance reference.

Navigation & Flight Planning

Supports VFR and IFR flight planning with SID/STAR/approach procedures.

Direct-to Navigation: Press D button, enter waypoint identifier.
Flight Plan Creation: FPL button, add waypoints, airways, or procedures.
Approach Selection: PROC button, select airport, approach, and transition.
Nearest Airports: Press NRST for nearest airports with weather and frequencies.
Waypoint Information: Select waypoint for details (frequencies, runways, services).
Hold Entry: Automatically computes holding pattern entry.
Vertical Navigation: Set altitude constraints for approaches and enroute.
Fuel Planning: Enter fuel flow for remaining fuel and endurance calculations.

WARNING! Always verify flight plan against paper charts or other sources. GPS is supplemental to proper flight planning.

Safety & Alerts

Terrain Alerts: Color-coded terrain display with "Caution" and "Warning" alerts. Traffic Alerts: TIS traffic with proximity alerts. System Alerts: GPS integrity (RAIM) predictions, database expired, system faults.

Care & Cleaning

Power off before cleaning. Use slightly damp cloth with mild detergent; dry immediately. Do not use solvents or abrasive cleaners.

CAUTION! Avoid liquid contact with connectors. Ensure unit is completely dry before powering on.

Regulatory Information

FCC Part 15: Class B digital device. Complies with FAA TSO standards. Copyright © Garmin Ltd. or its subsidiaries. Database copyright Jeppesen or Garmin. For support, visit www.garmin.com/aviation or contact Garmin Aviation Support at 1-800-800-1020.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection	Check circuit breaker; verify voltage at connector; check ground.
Poor GPS reception	Antenna/obstruction	Ensure antenna has clear sky view; check cable/connectors; verify no interference.
Database not loading	Card/USB issue	Reinsert database card; try different USB port; format card per instructions.
No audio	Audio panel settings	Check audio panel connections; verify squelch setting; test with headset.
Display issues	Brightness/contrast	Adjust display settings; check for sunlight readability mode.
RAIM not available	Satellite geometry	Check RAIM prediction for flight time/route; may be unavailable at certain times/locations.

Reset: Power cycle unit. For persistent issues, may require factory reset (consult manual).

Service: 1-800-800-1020; www.garmin.com/aviation