The Garmin GPSMAP 5008 is a high-performance 8-inch marine chartplotter featuring a sunlight-readable display, built-in worldwide basemap, support for BlueChart g2 and LakeVü g2 cartography, sonar compatibility, NMEA 2000 and NMEA 0183 connectivity, touchscreen interface, and rugged waterproof construction (IPX7). Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: 8-inch WVGA display, Power/data cable, Mounting hardware, Protective cover, Documentation.
| Feature | Description |
|---|---|
| Display | 8-inch diagonal, 800 x 480 pixels, sunlight-readable, resistive touch |
| Waterproof Rating | IPX7 (submersible to 1 meter for 30 minutes) |
| Built-in Maps | Worldwide basemap with shaded depth contours |
| Chart Compatibility | BlueChart g2, BlueChart g2 Vision, LakeVü g2, LakeVü g3 |
| Sonar Support | Compatible with Garmin GSD™ series sounder modules |
| Connectivity | NMEA 2000, NMEA 0183, Ethernet (for radar, sonar, network) |
| Power Input | 10–32 Vdc |
| Internal Memory | Accepts microSD™/SD™ card for charts and data |
| Waypoints/Routes | Stores up to 5000 waypoints, 100 routes |
| Antenna | Internal GPS/GLONASS receiver |
Unpack and inspect contents. Choose a suitable mounting location with clear view and access.
WARNING! Ensure all wiring is protected from moisture and chafing. Use appropriate circuit protection (fuse).
Apply power; follow on-screen prompts.
CAUTION! Do not power the unit before all connections are secure and checked for correct polarity.
Primary interface via touchscreen. Physical buttons: POWER, VOLUME, BACKLIGHT.
Touchscreen Menus: Home screen provides shortcuts to Chart, Sonar, Radar, Settings, etc.
Chart Settings: Orientation (North Up, Course Up, Head Up), Detail, Overlays (Depth, Tides, Currents). Navigation Settings: Waypoint creation, Route planning, Track recording. System Settings: Units, Time, Alarms, Network configuration, System Information.
NMEA 2000: Connect to compatible sensors (wind, speed, depth) via backbone. NMEA 0183: For legacy devices (autopilot, AIS). Ethernet: For Garmin radar, sonar modules, and network sharing.
Tip: Label all cables during installation for easier future maintenance.
Supports detailed marine and lake cartography.
WARNING! Always use official charts and maintain situational awareness. This device is an aid to navigation.
When connected to a compatible GSD sounder module.
Disconnect power before cleaning. Use a soft, lint-free cloth slightly dampened with fresh water. Do not use solvents or abrasive cleaners.
CAUTION! Do not spray liquids directly onto the unit. Ensure the protective cover seal is clean and intact for waterproofing.
FCC Compliance: This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. IC Compliance: Complies with Industry Canada licence-exempt RSS standard(s). Copyright © Garmin Ltd. or its subsidiaries. For support, visit www.garmin.com/support or contact your local Garmin dealer.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Power connection/fuse | Check voltage at unit; verify fuse is intact; ensure connections are secure and correct polarity. |
| No GPS signal | Obstruction/antenna | Ensure clear view of sky; check internal antenna connection via cable. |
| Touchscreen not responding | Calibration/screen protector | Recalibrate touchscreen in Settings; remove any non-Garmin screen protector. |
| Charts not displaying | Chart card/format | Ensure chart card is fully inserted; verify card is formatted for this device. |
| No data from sensors | Network wiring/settings | Check NMEA 2000 backbone power and terminations; verify device configuration in network settings. |
Reset: Settings > System > Master Reset (erases user data).
Service: Contact Garmin Product Support or an authorized dealer.