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Note:
When replacing a fuse, make sure to use the correct type and amperage. Using an incorrect fuse could cause damage. The unit uses (1) 10 amp ATC mini style fuse located on the power connector.
Wiring Notes:
Rear camera input
A rear view camera (not included) can be used with the Camera input.
Power On/Off | Momentarily press ![]() | |
Volume | Rotate the volume knob to increase or decrease the volume level. | |
Mute | Momentarily press MUTE to silence the audio. Momentarily press MUTE again to return to the previously selected volume. Rotating the volume knob while the volume is muted will also cancel the mute function. | |
Mode | Press MODE to step through all available input modes: Radio, microSD, USB, Bluetooth Phone, Bluetooth Music, Auxiliary Input, Rear Camera and Settings. Modes of operation are indicated on the display and/ or the monitor. Optional USB device and microSD card must be connected/inserted to appear in the mode selection string. | |
Auxiliary Input | Connect external audio/video devices to the 3.5mm auxiliary input on the front panel. | |
USB Input | Insert a USB device to play MP3 or FLAC audio files. | |
microSD Card | Insert a microSD card into the microSD card slot to play MP3 or FLAC audio files. | |
Main Menu | Press the house icon in the top left corner to access the Main Menu screen.![]() | |
Reset | To resolve abnormal operation or if the unit is inoperable, use the tip of a pen to press the RESET button. The unit will reset the main processor to the default settings. | |
Setup Menu | From the Main Menu screen, select Settings to access the Setup menu and select from three categories represented by the icons on the left side of the screen: Settings, Audio and Bluetooth.![]() | |
Settings:
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Audio:
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Bluetooth:
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Touch Screen Controls | The touch screen controls on the bottom of each screen allow direct access to important features during any mode of operation. | |
1 | Dimmer | Press to dim the display. |
2 | Voice Activation | Press to utilize Voice Activation feature. |
3 | Audio | Press to adjust audio options such as EQ, Treble/Bass or Balance/Fader. |
4 | Navigation | Press to directly access Navigation app. |
5 | Settings | Press to access the settings menu. |
Radio Operation | Select the Radio icon from the Main Menu screen. | |
1 | Main Menu | Press to return to Main Menu screen. |
2 | Current Mode Indicator | Displays current mode of operation. |
3 | Tune Frequency Down | Press and hold << to seek a lower frequency. Press << momentarily to tune the unit down one step at a time. |
4 | Band | Press between 2 AM and 3 FM bands. |
5 | Local / Distance | Press to toggle between Local and Distance tuning. |
6 | Tune Frequency Up | Press and hold >> to seek a higher frequency. Press >> momentarily to tune the unit up one step at a time. |
7 | Stereo | Press to toggle between Stereo and Mono tuning. |
8 | Preset Stations | Press and hold to set the current station in that preset spot. Press momentarily to recall the desired preset and begin playback. |
9 | AS/PS | Press to scan presets and listen to the first 10 seconds of each. Press again to stop scanning and listen to the station. Press and hold to automatically find and store the strongest stations as presets. |
USB/microSD Operation | To play audio files from a USB device or microSD card, insert device and playback will begin automatically. To return to USB or microSD card playback from another mode of operation, select the corresponding icon from the Main Menu.
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1 | Main Menu | Press to return to Main Menu screen. |
2 | Current Mode Indicator | Displays current mode of operation. |
3 | Repeat | Press to select a repeat option: Repeat 1, Repeat Folder or Repeat Off. |
4 | Random | Press to enable or disable random playback. |
5 | Previous File / Track | Press to go back to the previous file or track. |
6 | Play / Pause | Press to pause or resume playback. |
7 | Next File / Track | Press to advance to the next file or track. |
8 | Folder Down | Press to advance to the next folder. |
9 | Folder Up | Press to go back to the previous folder. |
10 | Direct Search | Press to directly enter file number to begin playback of that file. |
Notes:
Media Compatibility | The following types of files are not compatible:
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Playback Order | MP3 playback sequence begins in the root folder of the USB flash drive or microSD card. Any empty folders or folders that do not include MP3/FLAC files are skipped. |
Compatible Recording Formats | ISO9660 standards:
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Some files may not play or be displayed correctly, depending on sampling rates and bit rates. For best results, use the following settings when ripping MP3 files: |
Preparation | Before you can use a Bluetooth device, it must be paired and connected. Make sure that Bluetooth is activated on your device before you begin the pairing process. | |
Pairing a New Device | The unit broadcasts the pairing signal constantly when no devices are currently connected. Complete the pairing sequence from your Bluetooth device. Refer to the owner's manual for your device for more details. The device name is "CMR270". The Bluetooth passcode is "0000". The unit can be in any mode of operation when pairing is performed. On certain phones, pairing may need to be done more than once. | |
Connecting a Paired Device | Most Bluetooth devices support the auto-connect feature and will connect automatically if the device is in range when the unit is powered-on. If your device was previously paired but does not connect, enter the Bluetooth setup menu and turn Auto Connect on. | |
Bluetooth Phone | To access the phone, select Bluetooth Phone from the Main Menu or press the phone icon from any operational mode. | |
1 | Main Menu | Press to return to the Main Menu screen. |
2 | Phone Keypad | Use the phone keypad to dial the desired phone number. Alternately, numbers can be dialed directly from the phone. |
3 | Current Mode Indicator | Displays current mode of operation. |
4 | Bluetooth Phone | Press to access Bluetooth phone. |
5 | Bluetooth Music | Press to access Bluetooth music. |
6 | Available Devices | Press to view a list of available devices. |
7 | Talk | Press to connect a call. |
8 | End Call | Press to end a call. |
9 | Dimmer | Press to dim the display. |
10 | Audio | Press to adjust Audio options. |
11 | Settings | Press to access the Settings menu. |
12 | Bluetooth Phone | Press to access Bluetooth Phone (from Music mode). |
13 | Bluetooth Music | Press to access Bluetooth Music (from Phone mode). |
14 | Previous File / Track | Press to go back to the previous file or track. |
15 | Play / Pause | Press to pause or resume playback. |
16 | Next File/Track | Press to advance to the next file or track. |
Connect an optional rear camera to the Camera Input (Black RCA connector). Refer to the wiring diagram for details.
Manual selection - Touch CAMERA icon from the Main Menu or from any operational mode (when enabled) to select camera mode. Touch the top left area on the screen to exit camera mode.
Note: The manual mode is for dedicated cameras that are ALWAYS on while driving, it is not meant for cameras that are connected to the vehicle's reverse light.
The unit will automatically select camera mode when connected to the reverse lamp circuitry.
Note: The external video output is not active when using the rear camera input.
Activation of JENSEN Smart App should not be closed, but open on your smartphone for this operation. Touching will guide you instant access to your favorite navigation App on your smartphone.
The Jensen Smart app is the ultimate wireless remote control for your receiver. You can download the Jensen Smart app from the Apple App Store or Google Play Store and install it on your smartphone or tablet.
Scan the following QR code to download the Jensen J-Link P1 application on your smartphone.
Your receiver is designed with an easy access voice activation button to use Siri® or the Google Assistant™ via your car's Bluetooth. Interact with your smartphone assistant while you drive with only the push of a button! Bluetooth should be paired between your smartphone and the receiver. Press the voice activation button , and the receiver will switch into Bluetooth mode, This will activate Siri® or Google AssistantTM on your smartphone.
You will need to manually switch back to the previous or desired mode once this operation is terminated.
Connect an optional audio source into the 3.5mm (front panel) input. Select auxiliary input from the Main Menu to listen to audio. Adjust volume on the external audio source as needed (if connected to the headphone output of the device).
FM Tuner | Tuning range: 87.5MHz-107.9MHz Usable sensitivity: 10dBf 50dB quieting sensitivity: 20dBf Stereo separation @ 1kHz: 38dB Frequency response: 30Hz-13kHz |
AM Tuner | Tuning range: 530kHz-1710kHz Usable sensitivity: 24uV Frequency response: 30Hz-2.3kHz |
Front USB | Compatibility: High Speed USB 2.0 USB Class: Mass storage class |
microSD | Compatibility: microSD memory card & microSDHC memory card |
Monitor | Panel size: 7" diagonal measurement View angle (up/down/left/right): 50/70/70/70 Resolution: 800 (H) x 480 (V) Brightness (cd/m 2 ): 250 Contrast ratio: 500:1 Pixels: 1,152,000 |
General | Speaker output impedance: 4 ohms Line output voltage: 2 volt RMS Line output impedance: 200 ohms Chassis dimensions: 7" x 2.5" x 4" (W x D x H) Design and specifications subject to change without notice. |
CEA-2006 Power Standard Specifications
(reference: 14.4VDC +/- 0.2V, 20Hz~20kHz)
Power Output: 16 Watts RMS x 4 channels at 4 ohms and < 1% THD+N
Signal to Noise Ratio: 75dBA (reference: 1 watt into 4 ohms)
General
Problem | Cause | Action |
Unit will not turn on (no power) | Yellow wire not connected or incorrect voltage Red wire not connected or incorrect voltage | Check connections for proper voltage (11~16VDC) |
Black wire not connected | Check connection to ground | |
Fuse blown | Replace fuse(s) | |
Unit has power (but no sound) | Speaker wires not connected | Check connections at speakers |
One or more speaker wires touching each other or touching chassis ground | Insulate all bare speaker wires from each other and chassis ground | |
Unit blows fuse(s) | Yellow or red wire touching chassis ground | Check for pinched wire |
Speaker wires touching chassis ground | Check for pinched wire | |
Incorrect fuse rating | Use fuses with correct rating | |
No video display (when in reverse) | Reverse circuit not connected Vehicle is not in reverse | Check connections at reverse lamp Select reverse gear |
Please read all instructions carefully before attempting to install or operate.
Due to its technical nature, it is highly recommended that your JENSEN CMR270 is installed by a professional installer or an authorized dealer. This product is only for use in vehicles with 12VDC negative ground only.
To prevent damage or injury:
For Your Records
Please keep your original sales receipt and be prepared to provide this receipt in the event you require service, as your original receipt is considered the best proof of purchase and indicates the date you purchased your JENSEN product.
For more information and for the location of the nearest authorized service center please contact us by one of the following methods:
U.S.A.
1-888-921-4088
(Monday-Friday, 9AM-5PM EST)
Visit https://www.jensenmobile.com
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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