GVN50/51 is a car satellite intelligent navigation module that integrates GPS global satellite positioning system, electronic maps, navigation maps, and navigation software. It can achieve precise positioning of vehicle location and provide the driver with the most reasonable driving route suggestions and voice navigation prompts. At the same time, it can be connected to any display screen or DVD device, realizing the perfect integration of car audio-visual entertainment system and GPS intelligent navigation function.
This manual covers the GVN50/51 vehicle‑mounted GPS navigation module, describing its hardware structure, installation steps, and basic usage. It explains how to connect power, antenna, and video/audio signals, and how to operate the main pages such as map, trip info, and current route.
Later chapters detail advanced navigation functions, system configuration options, technical specifications, a brief GPS overview, common problems with solutions, and legal declarations. The document is intended for installers and service technicians who need to set up and maintain the device. This manual is written in Chinese.
| Continuous supply voltage | 12 V |
|---|---|
| Auxiliary power range | 10 V – 36 V, <1 mA @13 V |
| Main power range | 10 V – 36 V, <500 mA @13 V |
| Output voltage level | 0 V – 3 V |
| TTL input voltage | 0.5 V – 1.0 V RMS, 1 kΩ |
Mount the unit horizontally, fix it securely in the vehicle, ensure the antenna has a clear view of the sky, avoid metal window film, and connect the power and signal cables as shown in the pin definitions.
Check that the antenna is pointing to the sky, remove any nearby metal or tree obstructions, keep the antenna away from electromagnetic interference, and relocate the vehicle to an open area if needed.