To Next PageTo Next PageWhy does my GAS GMVM750BT Car Receiver have poor radio station reception?
If you're experiencing poor reception on your GAS Car Receiver, it could be due to several reasons: * The antenna may not be fully extended, make sure the antenna is fully extended. * The broadcasting signal might be weak. * The antenna could be poorly grounded; check and ensure it's properly grounded at its mounting location.
Why does the picture appear grainy on my GAS GMVM750BT?
If the picture on your GAS Car Receiver appears grainy, it may be because the disc is dirty or damaged.
Lists necessary tools and supplies for installing the car radio, though they are not supplied.
Instructions for removing the existing car radio unit from the dashboard using removal keys.
Procedure to mark speaker wire polarity for correct connection to existing car speakers.
Provides general guidelines for chassis ground, ignition, memory backup, remote, hand brake, and panel light connections.
Details on connecting speakers, impedance requirements, and avoiding shorts or incorrect grounding.
Instructions for powering the unit on/off and controlling the sliding monitor and its angle.
Adjusting screen brightness, blackout, and selecting playback modes like RADIO, USB, SD, AUX.
Adjusting volume, bass, treble, balance, and fader settings via the SEL and VOL buttons.
Adjusting equalizer, loudness, or subwoofer settings via the EQ icon.
Accessing the setup menu to configure audio, date, time, language, and calibration settings.
Choosing radio bands and using seek function for automatic or manual frequency adjustment.
Saving preset stations and controlling mono/stereo and local/distance reception.
Utilizing optional RDS functions and returning to the main user interface.
Scanning for TV stations, saving them, and selecting saved stations.
Using GOTO to tune directly and switching TV broadcast system and audio system.
Connecting a phone via Bluetooth, dialing, and managing call records.
Playing music via A2DP and rejecting incoming calls.
Displaying lists of received, missed, and dialed calls.
Advancing tracks, playing/pausing, fast forwarding/rewinding media content.
Adjusting video aspect ratio and other playback settings like random/repeat play.
Setting up steering wheel buttons to control unit functions via the OSD interface.
Using GPS navigation and connecting/operating an iPod.
Connecting AV devices via rear input and portable devices via front Aux input.
Connecting a backup camera for parking assistance.
Connecting external monitors via video output and amplifiers via RCA/Subwoofer outputs.
Instructions for cleaning the unit using a dry cloth, avoiding liquids and petroleum distillates.
Guidance on replacing fuses, emphasizing matching amperage and checking connections.
Details on the functions of various buttons on the infra-red remote control.
Instructions for inserting the battery and operating the remote control effectively.
Overall operating power, wiring, output impedance, fuses, dimensions, and weight of the unit.
Details on resolution, brightness, contrast, viewing angle, response time, dimension, and aspect ratio.
Tuning range, sensitivity, and stereo separation for FM and AM radio reception.
This document describes the GMVM750BT Media Receiver with Bluetooth, a 1-DIN AM/FM radio designed for in-dash installation in vehicles with a 12-volt battery and negative grounding. It features a 7-inch TFT display with touch screen functionality and supports various media playback formats including RMVB, DIVX, MP4, MP3, and WMA. The unit is equipped with USB and SD card control, a front AUX-in, and high power 4x50 watts output. For convenience, it includes a detachable front panel, remote control, and Bluetooth functionality.
The GMVM750BT serves as a comprehensive media receiver for your vehicle, offering radio, multimedia playback, and connectivity options.
Radio Functionality: The unit provides 1-DIN AM/FM radio with RDS (Radio Data System). It allows users to choose among five radio bands (three FM bands: FM1, FM2, FM3; and two AM bands: AM1, AM2). Each band can store up to six preset stations, totaling 30 memory stations. Radio stations can be sought automatically or manually. Users can save their favorite stations by touching and holding a preset button (P1-P6). The unit also offers mono/stereo reception control and local/distance reception control. For regions where RDS is available, AF, TA, and PTY functions are supported.
Multimedia Playback: The device supports playback of RMVB, DIVX, MP4, MP3, and WMA files. Media can be played from USB drives and SD cards, which are plugged into their respective ports. During playback, users can advance or go back to tracks, play/pause, and fast forward/rewind. For video playback, the aspect ratio can be adjusted to full screen, 16:9, or 4:3. Additional settings like random/repeat play and sub-title/audio channel selection are available.
Display and User Interface: The GMVM750BT features an in-dash 7-inch TFT display with touch screen functionality. The monitor slides out automatically when the TILT button is pressed, revealing the main GUI display. The screen angle can be adjusted in four steps using UP/DOWN arrow buttons. The display can be turned off (blackout) if not needed, and during video playback, the video signal can be sent to connected external monitors. A "Day Light Saving" feature allows adjustment of screen brightness for day or night use, or complete blackout. The main menu provides access to various modes (RADIO, USB, SD, AUX in) and settings.
Audio Control: Sound control includes volume adjustment via the VOL +/- button or by sliding the volume icon on the screen. Bass and treble levels can be adjusted using the SEL button, though these controls are unavailable when EQ is ON. Balance (left/right speakers) and fader (front/rear speakers) can also be adjusted. Other audio settings like preset equalizer, loudness, or subwoofer ON/OFF are accessible via the "EQ" icon on the main menu or control menus of play modes.
Bluetooth Functionality (Optional): The unit supports Bluetooth for wireless connectivity. In BT mode, users can pair their phone with "BT CAR STEREO" using the password "0000". Features include a dial pad for making calls, a call record to view received, missed, and dialed calls, and A2DP for playing music from a cellphone. Users can reject incoming calls and navigate through their music list (play/pause, next/previous song).
Connectivity and Inputs/Outputs: The GMVM750BT offers various connection points. It has a front AUX-in (3.5mm connector) for portable audio devices. On the rear, there are AV input jacks for connecting external audio/video devices like DVD or VCD players. A dedicated backup camera input (yellow RCA) is available, activated when the car is in reverse gear, requiring connection to the reverse gear switch. A video output jack (yellow RCA) allows connection to external monitors. Two sets of RCA output jacks (red for right, white for left) are provided for connecting amplifiers, equalizers, or other audio components. A subwoofer output jack on the wire harness allows connection of up to two subwoofer amplifiers.
Steering Wheel Control: The unit supports steering wheel control. Users connect the brown wire (Steering 1) and either the white (Steering 2A) or grey (Steering 2B) wire depending on the vehicle's steering wheel remote control. Through the OSD, users can reset settings, select from 10 functions, and assign them to available keys on their steering wheel.
GPS Navigation (Optional): If GPS navigation is available with the system, tapping the GPS logo on the OSD allows entry into the navigation interface for inputting destinations and starting navigation.
iPod Input (Optional): The unit can support iPod input using a supplied iPod wire. It allows playing music and video viewing for iPod Classic (new iPod Classic, iPod Nano, iPod Touch, and iPhone are not supported for video viewing).
Power| operating power | 12 Volts DC |
|---|---|
| fuses | 10 amp |
Audio Output| output impedance | 4 to 8 Ohm |
|---|---|
| output wiring | four speakers only |
| low-level outputs | 1000MV |
Display| resolution | 800RGB(H) X 480(V) |
|---|---|
| brightness/contrast | 300cd/m2/600 |
| viewing angle | 70 |
FM Tuner| tuning range (USA) | 87.5 - 107.9MHz |
|---|---|
| tuning range (Europe) | 87.5 - 108 MHz |
| fm sensitivity | 12dBu |
AM Tuner| tuning range (USA) | 530 - 1710 KHz |
|---|---|
| tuning range (Europe) | 522 - 1620 KHz |
| am sensitivity | 30dBu |
Weight and Dimensions| weight | 2.0 Kg |
|---|---|
| width | 178 mm |
| depth | 170 mm |
| height | 58 mm |
