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Rock Mars DD-7205BT - User Manual

Rock Mars DD-7205BT
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Questions and Answers

  • M
    margaret54Jul 30, 2025
    What to do if my Rock Mars Car Receiver cannot power on?
    • C
      Carol CannonJul 31, 2025
      If your Rock Mars Car Receiver fails to power on, there are a couple of things you can check: * First, examine the power fuse to see if it has melted. If it has, replace it with a fuse of the same type. * Second, it's possible the MPU is malfunctioning. In this case, use a penpoint to press the RES button on the panel, and then try powering it on again.
  • F
    fbryantAug 3, 2025
    What to do if Rock Mars Car Receiver cannot play disc?
    • J
      Jonathan JonesAug 3, 2025
      If your Rock Mars Car Receiver is unable to play a disc, consider these possibilities: * The disc might be scratched, in which case you should try a new disc. * You may have inserted the disc upside down; make sure the labeled side is facing up. * The lens could be dirty. Try cleaning it with a lens cleaning disc.
  • H
    harrisbrendaAug 7, 2025
    What to do if there is no image on my Rock Mars DD-7205BT?
    • N
      Nicholas Graham MDAug 7, 2025
      If there is no image on your Rock Mars Car Receiver, it may be due to the MPU experiencing a malfunction. To resolve this, press the [RES] button on the panel using a penpoint, and then power the device on.
  • D
    David SimpsonAug 12, 2025
    Why can't I watch image during driving with my Rock Mars DD-7205BT Car Receiver?
    • R
      Russell WilliamsAug 12, 2025
      Watching images while driving is not permitted. To view images, park your car in a safe location, shift the car stall to the 'P' position, and engage the hand brake.
  • P
    Peter RichAug 16, 2025
    What to do if Rock Mars Car Receiver cannot load disc?
    • J
      Joseph KleinAug 16, 2025
      If your Rock Mars Car Receiver is unable to load a disc, it might be because there's already one inside. Eject the current disc before inserting a new one.
  • D
    Diane SteeleAug 21, 2025
    Why does my Rock Mars DD-7205BT Car Receiver have poor radio station performance?
    • D
      darrengainesAug 21, 2025
      Poor radio station performance on your Rock Mars Car Receiver could be due to a weak signal. Try moving your car to a different location and then searching for stations again.
  • T
    Teresa ArmstrongAug 25, 2025
    How to switch language/subtitle on Rock Mars Car Receiver?
    • C
      Caroline GloverAug 26, 2025
      If the disc you are using with your Rock Mars Car Receiver only contains one language or subtitle track, you won't be able to switch languages or subtitles.

Summary

MUSIC Function Operation

Select;Play File

Touch file folder icon to open the file, directly touch the icon of playable file to play.

Skip Song

In playback mode, short press [SEEK-/SEEK+] button on remote control can skip to previous/next song.

Call Log

Stop play

Pause;Play

Other Functions

Backup rearview

Video signal switches to reverse video state when reversing the car, returning to initial state after.

Precaution

Safety

Ensures driving safety by following guidelines for installation and operation.

Cleaning Device

Use soft cloth to wipe the front panel; use neutral fluid for heavy stains.

Lens Mist

Mist on disc player lens in cold weather; eject disc and wait for condensate to evaporate.

BT Function Operation

Dial;Answer;Switch;Hand-up

Instructions for dialing, answering, switching, and hanging up calls via Bluetooth.

BT Music Play

Play music from phone via Bluetooth; requires A2DP support.

MP3 Function Operation

Pause

Touch button on remote to switch between play and pause.

Skip;Speed forward;backward play

Short press to skip, long press for speed play forward/backward.

Repeat Play

Press [RPT] button on remote to choose repeat mode: single repeat.

Select Song

Press number buttons 1-9 to input serial number for song selection.

Stop

Touch button on remote to stop playing MP3 files.

Worlds Area Codes

Panel function description

Back rearview switch

Unit automatically switches to back mode when reversing, returns to previous status after.

Select Sound Output Mode

Switch sound track between Left, Right, and Stereo.

Change the Angle (multi-angle)

Press [ANGLE] button to change visual angle for DVD discs.

DVD;VCD;CD Function Operation

Repeat Playback

Repeat chapter, title, or off for DVD; single repeat or off for VCD/CD.

Slow Play

Access slow play by pressing [SLOW] button, speed changes as shown.

Skip;Speed forward;backward

Short press SEEK to skip, long press for speed play forward/backward.

Stop

Press [/^] button to pause or stop playback.

Image Zoom In;Out

Press [ZOOM] to zoom in/out image during playback.

Display

Press [OSD] to display information about the currently played disc.

Programmed play

Set programmed playback sequence using number buttons and cursor.

Random Play

Press [RDM] for random play in VCD/DVD mode.

Panel function introduction

1. PWR;VOL button

Turns unit on/off, adjusts volume, returns to main menu.

2. MUTE button

Turns audio output off and on, resuming previous volume level.

3. DVD button

Enters DVD auto reading mode from any mode.

4. FM;AM button

Accesses radio mode; may switch bands on certain models.

5. Eject Disc

Press this button to eject the disc.

6. IR

Receives infrared signals from the remote control.

7. Disk load slot

Opening for disks to enter or retreat.

8. SD slot

Connects SD memory card for MP3 music playback.

9. USB slot

Connects USB memory for music playback; use one slot at a time.

10. AUX slot

For inputting external audio.

11. RESET

Press this button to return the unit to default mode.

12. MIC

BT microphone input port.

Remote Control Function

1. POWER

Press to turn on/off; press again to switch off.

2. MUTE button

Turns off audio output, press again to resume volume.

3. DSP

Press this button to show the time.

4. SOURCE;IR-SW

Switches modes or remote control between foreground/background.

5. EQ;

Selects different sound effect modes.

6. SEEK

Skips tracks or searches stations manually.

7. VOL

Increases or decreases volume level.

8. SEL

Repeatedly press to choose sound feature.

9. LOUD;

Turns on/off LOUD function or hangs up BT call.

10. BAND;P;N

Switches radio band or playback system (AUTO/PAL/NTSC).

11. LOC;RDM

Switches radio between remote/local or selects random playback.

12. STOP

Press once to pause, twice to stop playback.

13.

Switches between play and pause; starts playback from stop status.

14. ST;PROG

Selects stereo/mono station or accesses programmed play.

Radio Function Operation

1. Preset Station Button

Displays preset station list; long press to store current frequency.

2. BAND

Touch button to switch band.

3. LOC

Switch between far and short-range radio reception.

4. Browse; search for radio

Browse stations sequentially or search automatically.

5. Up; down tuning frequency scanning radio

Manually fine-tune frequency or automatically scan for stations.

6. Set up

Press to enter the setting interface.

7. EQ

Press to switch audio modes: POP, ROCK, CLASSIC, OFF.

8. LOUD

Press button to turn on/off equal loudness.

Video Setup

Time setup

Change the Battery

Reset Device

Turn on;off Host

Sound Effect Setup

EQ Setup

Choose preset modes (POP, CLASSIC, ROCK) or OFF by pressing EQ.

Setup Operation

Touch [SETUP] menu to enter the setting interface.

Volume Control

Press [VOL] button or touch [VOL+/-] to adjust volume level.

Turn on;off Equal Loudness

Short press [LOUD] button to turn on/off equal loudness.

Rock Mars DD-7205BT Specifications

General IconGeneral
BrandRock Mars
ModelDD-7205BT
CategoryCar Receiver
LanguageEnglish

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