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Flush Mounting the Device

NOTICE

Be careful when cutting the hole to flush mount the device. There is only a small amount of clearance between 
the case and the mounting holes, and cutting the hole too large could compromise the stability of the device 
after it is mounted.
Use only the included hardware when mounting this device. Using mounting hardware not provided with the 
device may damage the device.
To avoid potential damage to the powder coating, use only the included screws to mount the device. Using 
screws other than the ones included will void your warranty.
Do not use the device as a template when drilling the mounting holes because this may damage the glass 
display and void the warranty. You must only use the included template to correctly drill the mounting holes.
If you will not have access to the back of the device and the microSD memory card slots after installations, you 
should install the microSD memory card prior to installation.

The included template and hardware can be used to flush mount the device in your dashboard. There are three 
options for hardware based on the mounting surface material.
• You can drill pilot holes and use the included wood screws.
• You can drill holes and use the included nut plates and machine screws. The nut plates can add stability to a 

thinner surface.

• You can punch and tap holes, and use the included machine screws.
Trim the template, and make sure it fits in the location where you want to mount the device.
Secure the template to the mounting location.
Using a drill bit according to the list below, drill one or more of the holes inside the corners of the solid line 

on the template to prepare the mounting surface for cutting.

Device

Drill bit size

GPSMAP 7x3

6.5 mm (

1

/

4

 in.)

GPSMAP 9x3

7.4 mm (

5

/

16

 in.)

GPSMAP 12x3

13.5 mm (

9

/

16

 in.)

Using a jigsaw or a rotary tool, cut the mounting surface along the inside line on the template.
Place the device in the cutout to test the fit.
If necessary, use a file and sandpaper to refine the size of the cutout.
If necessary, remove the trim caps.

NOTICE

Use a plastic pry tool when possible. Using a metal pry tool, such as a screwdriver, can damage the trim caps 
and the device.

After the device fits correctly in the cutout, ensure the mounting holes on the device line up with the hole 

locations on the template.
NOTE: GPSMAP 12x3 models have six mounting holes. GPSMAP 9x3 and GPSMAP 7x3 models have four 
mounting holes.

If the mounting holes on the device do not line up, mark the new hole locations.
10 Based on your mounting method, drill or punch and tap the outer holes on the template:

• For the included wood screws, drill 3.5 mm (

9

/

64

 in.) holes, and skip to step 18.

• For the included nut plate and machine screws, drill 3.5 mm (

9

/

64

 in.) holes in the outer hole locations.

• For the included machine screws without the nut plate, punch and tap M3 holes, and skip to step 18.

11 If you are using a nut plate, starting in one corner of the template, place a nut plate   over the hole 

drilled in the previous step.

5

Summary of Contents for GPSMAP 12X3

Page 1: ...ssible personal injury always wear safety goggles ear protection and a dust mask when drilling cutting or sanding To avoid possible personal injury or damage to the device and vessel disconnect the vessel s power supply before beginning to install the device To avoid possible personal injury or damage to the device or vessel before applying power to the device make sure that it has been properly g...

Page 2: ... screws and nut plates 3 5 mm 9 64 in 3 mm 1 8 in Flush with included machine screws and tapped holes M3 tap 2 Phillips screwdriver Jigsaw or rotary tool File and sandpaper Marine sealant recommended GPSMAP 7x3 and GPSMAP 9x3 Connector View POWER Power and NMEA 0183 network NETWORK Garmin Marine Network J1939 J1939 engine network Ground screw CVBS IN Composite video in SONAR 12 pin transducer Not ...

Page 3: ...ork 2 microSD memory card slots 32 GB max Contacting Garmin Support Go to support garmin com for help and information such as product manuals frequently asked questions videos and customer support In the USA call 913 397 8200 or 1 800 800 1020 In the UK call 0808 238 0000 In Europe call 44 0 870 850 1241 Software Update You may need to update the chartplotter software after installation For the in...

Page 4: ...ted in the product specifications The location must allow room for the routing and connection of all cables When flush mounting the device the location must not be a flat horizontal surface The location should be in a vertical angle The location and viewing angle should be tested before you install the device High viewing angles from above and below the display may result in a poor image Bail Moun...

Page 5: ...e sure it fits in the location where you want to mount the device 2 Secure the template to the mounting location 3 Using a drill bit according to the list below drill one or more of the holes inside the corners of the solid line on the template to prepare the mounting surface for cutting Device Drill bit size GPSMAP 7x3 6 5 mm 1 4 in GPSMAP 9x3 7 4 mm 5 16 in GPSMAP 12x3 13 5 mm 9 16 in 4 Using a ...

Page 6: ... foam gasket have adhesive on the back Make sure you remove the protective liner before installing them on the device 19 If you will not have access to the back of the device after you mount it connect all necessary cables and install microSD cards in the back of the device before placing it into the cutout NOTICE To prevent corrosion of the metal contacts cover unused connectors with the attached...

Page 7: ...ating the appropriate fuse must be in place as indicated in the product specifications In addition connecting the power cable without the appropriate fuse in place voids the product warranty 1 Route the wiring harness to the power source and to the device 2 Connect the red wire to the positive battery terminal and connect the black wire to the negative battery terminal 3 If necessary install the l...

Page 8: ...mapping When connecting Garmin Marine Network devices to this device observe these considerations All devices connected to the Garmin Marine Network must be connected to the same ground If multiple power sources are used for Garmin Marine Network devices you must tie all ground connections from all power supplies together using a low resistance connection or tie them to a common ground bus bar if ...

Page 9: ... 2000 power cable is connected to the battery directly This device can connect to a NMEA 2000 network on your boat to share data from NMEA 2000 compatible devices such as a GPS antenna or a VHF radio The included NMEA 2000 cables and connectors allow you to connect the device to your existing NMEA 2000 network If you do not have an existing NMEA 2000 network you can create a basic one using cables...

Page 10: ...ree NMEA 0183 devices in parallel to the Tx port to receive data output by this chartplotter See the NMEA 0183 device installation instructions to identify the transmit Tx and receive Rx wires You must use 28 AWG shielded twisted pair wiring for extended runs of wire Solder all connections and seal them with heat shrink tubing Do not connect the NMEA 0183 data wires from this device to power groun...

Page 11: ...Garmin device Item Description Power source Power NMEA 0183 cable NMEA 0183 device Item Garmin Wire Function Garmin Wire Color NMEA 0183 Device Wire Function Power Red Power Power ground Black Power ground Data ground Black Data ground Rx A In Brown Tx A Out Rx B In Violet Tx B Out Tx A Out Blue Rx A In Tx B Out Gray Rx B In If the NMEA 0183 device has only one input receive Rx wire no A B or you ...

Page 12: ...Power Cable Pinout Pin Number Wire Function Wire Color NMEA 0183 Tx A Out Blue NMEA 0183 Rx A In Brown NMEA 0183 Tx B Out Gray NMEA 0183 Rx B In Violet Alarm Yellow Accessory on Orange Ground shield Black VIN Red 12 ...

Page 13: ... considerations The alarm circuit switches to a low voltage state when the alarm sounds The maximum current is 100 mA and a relay is needed to limit the current from the chartplotter to 100 mA To manually toggle visual and audible alerts you can install single pole single throw switches Item Description Power source Power cable Horn Lamp Relay 100 mA coil current Toggle switches to enable and disa...

Page 14: ...havior The port labeled J1939 is used to connect the device to the existing engine network You must route the cable within 6 m 20 ft of the engine network backbone The Garmin GPSMAP J1939 accessory cable requires connection to a power source and proper termination For more information on connecting to your engine network see the manufacturer s engine documentation Pin Wire Color Description Bare S...

Page 15: ...ctive HDMI cable only You need an HDMI coupler to connect the two HDMI cables You must make all cable connections in a dry environment Item Description GPSMAP 12x3 chartplotter GPSMAP HDMI cable HDMI Display with an HDMI In port such as a computer or television Dry environment protected from moisture Installing the Ferrite Beads on the Cables To comply with regulations and to reduce noise you can ...

Page 16: ...nal Display resolution WSVGA 1024 600 pixels Weight 1 3 kg 2 8 lb Compass safe distance 35 cm 13 78 in Max power usage at 10 Vdc Non sonar models 17 6 W Sonar models 35 9 W Typical current draw at 12 Vdc Non sonar models 1 08 A Sonar models 1 18 A Max current draw at 12 Vdc Non sonar models 1 45 A Sonar models 2 96 A GPSMAP 9x3 Dimensions W H D 233 0 162 3 75 8 mm 9 3 16 6 3 8 3 in Dimensions with...

Page 17: ... in Dimensions with cover on bail mount W H D 327 2 246 3 113 8 mm 127 8 911 16 41 2 in Clearance to next obstruction behind chartplotter 18 7 mm 3 4 in Display size W H 262 1 164 2 mm 10 15 16 6 7 16 in 30 7 cm 12 1 in diagonal Display resolution WXGA 1280 800 pixels Weight 3 0 kg 6 6 lb Compass safe distance 45 cm 17 72 in Max power usage at 10 Vdc Non sonar models 26 5 W Sonar models 43 0 W Typ...

Page 18: ... control 127245 Rudder 127250 Vessel heading 127258 Magnetic variance 127488 Engine parameters Rapid update 127489 Engine parameters Dynamic 127493 Transmission parameters Dynamic 127505 Fluid level 127508 Battery status 128259 Speed Water referenced 128267 Water depth 129025 Position Rapid update 129026 COG and SOG Rapid update 129029 GNSS position data 129283 Cross track error 129284 Navigation ...

Page 19: ...time 127251 Rate of turn 127252 Heave 127257 Attitude 127498 Engine parameters Static 127503 AC input status obsolete 127504 AC output status obsolete 127506 DC detailed status 127507 Charger status 127509 Inverter status 128000 Nautical leeway angle 128275 Distance log 129038 AIS class A position report 129039 AIS class B position report 129040 AIS class B extended position report 129044 Datum 12...

Page 20: ...related broadcast message 129808 DSC call Information 129809 AIS class B CS static data report part A 129810 AIS class B CS static data report part B 130313 Humidity 130314 Actual pressure 130316 Temperature Extended range 130576 Trim tab status 130577 Direction data 20 ...

Page 21: ... information GPRMC RMC Recommended minimum specific GNSS data GPRTE RTE Routes GPVTG VTG Course over ground and ground speed GPWPL WPL Waypoint location GPXTE XTE Cross track error PGRME E Estimated error PGRMM M Map datum PGRMZ Z Altitude SDDBT DBT Depth below transducer SDDPT DPT Depth SDMTW MTW Water temperature SDVHW VHW Water speed and heading Receive Sentence Description DPT Depth DBT Depth ...

Page 22: ...MWD Wind direction and speed MDA Meteorological composite MWV Wind speed and angle VDM AIS VHF data link message You can purchase complete information about National Marine Electronics Association NMEA format and sentences from www nmea org 22 ...

Page 23: ...5252 2812 Engine air shutoff command status 65252 2813 Engine alarm output command status 65252 2814 Engine total hours of operation 65253 247 Navigation based vehicle speed 65256 517 Engine fuel temperature 1 65262 174 Engine oil temperature 1 65262 175 Engine fuel delivery pressure 65263 94 Engine oil pressure 65263 100 Engine coolant pressure 65263 109 Engine coolant temperature 65263 110 Engin...

Page 24: ...的无线电台 站 产生有害干扰 也不得提出免受有害干扰保护 四 应当承受辐射射频能量的工业 科学及医疗 ISM 应用设备的干扰或其他合法的无线电台 站 干扰 五 如对其他合法的无线电台 站 产生有害干扰时 应立即停止使用 并采取措施消除干扰后方可继续使用 六 在航空器内和依据法律法规 国家有关规定 标准划设的射电天文台 气象雷达站 卫星地球站 含测控 测距 接收 导航站 等军民用无线电台 站 机场等的电磁环境保护 区域内使用微功率设备 应当遵守电磁 环境保护及相关行业主管部门的规定 八 微功率设备使用时温度 15 55 和电压 10 32 Vdc 低功率電波輻射電機管理宣告 本產品謹遵循中華民國國家通訊傳播委員會所頒布電信管理法 並經驗證通過合格 請使用者遵循相關電信法規 以避免違反規定受罰 若使用者欲攜帶本機至其他國家應用 也請遵循該地區或國家之相關法令限制 根據國家 通訊傳播委員會低功率...

Page 25: ...n of Garmin NMEA NMEA 2000 and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association HDMI is a registered trademark of HDMI Licensing LLC The SDHC logo is a trademark of SD 3C LLC Wi Fi is a registered trademark of Wi Fi Alliance Corporation GPSMAP 1223 1243 1253 1223xsv 1243xsv 1253xsv GPSMAP 723 743 753 723xsv 743xsv 753xsv GPSMAP 923 943 953 923xsv 943xsv 9...

Page 26: ... 2020 Garmin Ltd or its subsidiaries support garmin com ...

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