XOMAX XM-RD275 (01) PDF MANUAL

Short press the Power button (1) to power on. Long press the Power button (1) to power off.

Turn the Volume knob (11) left or right to control the volume.

Press the SEL function (part of the Knob – 11) repeatedly to choose the sound effect you want to adjust. The sequence is: Volume—BASS—TREBLE—BAL– FAD —LOUND OFF/ON –BT -Volume.

When you have selected the mode you need (e.g., BASS, TREBLE, BAL, FAD), turn the VOL knob (11) left or right to adjust the setting.

When you choose the EQ function, turn the VOL knob (11) left or right to select the EQ preset: POPS—ROCK—CLASS—FALT.

The LCD shows radio frequency and the content/status of SD/USB playback.

In radio mode, repeatedly press the BND/AMS button (3) to change the band: FM1-FM2-FM3. A long press of the BND/AMS button (3) will automatically search for radio stations and save them into the memory numbers (1-6).

Short press the MODE button (1) to choose the mode: Radio—SD/MMC—USB—AUX IN–BT.

In radio mode, when you find a station you like, long press any number button (1-6) (4) to save the current station to that number. For example, if you long press number 2, the next time you short press number 2, it will recall the saved station directly.

In radio mode, short press the Radio search backward button (12) to search backward automatically. It will stop and play when it finds a station.

Long press this button (12) (about three seconds) to search manually. Then you can short press the button to step through frequencies backward. If you don’t press any button for 5 seconds, it will exit manual search.

In radio mode, short press the Radio search forward button (5) to search forward automatically. It will stop and play when it finds a station.

Long press this button (5) (about three seconds) to search manually. Then you can short press the button to step through frequencies forward. If you don’t press any button for 5 seconds, it will exit manual search.

Short press the CLK button (7) to display the current time.

Long press the CLK button (7) until the clock time flashes on the display.

Then, short press button (5) (Radio search forward/Next song) to adjust the hour.

Short press button (12) (Radio search backward/previous song) to adjust the minute.

Short press the MODE button (1) until AUX is selected. You can play external music by inserting a device into the Aux in hole (9) using an appropriate cable.

If the system crashes or becomes unresponsive, press the RST button (13) with a pointed object to restart the unit.

Insert an SD/MMC card into the SD/MMC slot (10). The player should automatically switch to SD/MMC mode and start reading the music from the card.

Insert a USB disk into the USB Slot (8). The player should automatically switch to USB mode and start reading the music from the USB disk.

Pause/Play: Short press the 1/▶|| button (part of 4) to pause playback. Short press again to resume playing.

Next Song: Short press the Next song button (5) to skip to the next track.

Previous Song: Short press the Previous song button (12) to go to the previous track.

Scan Play (INT): Short press the 2/INT button (part of 4) to play the first few seconds of each track.

Repeat Play (RPT): Short press the 3/RPT button (part of 4) to cycle through repeat modes (e.g., repeat track, repeat all).

Random Play (RDM): Short press the 4/RDM button (part of 4) to play tracks in random order.

Skip 10 Songs Back (-10): Short press the 5/-10 button (14) to skip back 10 songs.

Previous Folder: Long press the 5/-10 button (14) to go to the previous folder.

Skip 10 Songs Forward (+10): Short press the 6/+10 button (15) to skip forward 10 songs.

Next Folder: Long press the 6/+10 button (15) to go to the next folder.

This USB slot is specifically for charging cellphones. It may not function for music playback. Use the standard USB slot (8) for playing music from a USB drive.

After powering on, the unit will automatically change color every 3 seconds.

Short press the TR button (2) to choose only one color. Press again to choose another single color.

Press the TR button (2) two times quickly to return to the automatic seven-color changing cycle.

Long press the TR button (2) to turn off the color light.

1. BT is turned on by default when you power on the player. Short press the MODE button (1) to select BT MODE. You will see the BT symbol flashing.

2. Enable Bluetooth on your mobile phone and search for devices. Connect to the player (likely named XM-RD275 or similar).

3. When the mobile phone successfully connects with BT, the BT symbol on the player’s display will stop flashing.

4. In BT mode, you can play music from your mobile phone through the car player.

5. In BT mode, short press the Answer the call button (5) to answer an incoming call or to hang up (ring off) a call.

1. Assure the yellow wire is connected correctly to the battery + terminal.

2. Check if the fuse of the red wire is open. Replace the fuse if necessary.

1. Ensure the power wire is connected correctly.

2. Check if the speaker wire is open circuit. Connect the speaker wire properly.

3. If using SD/MMC card or U disk, ensure they contain songs with a corresponding format supported by the player.

4. Clean the golden finger contacts on the SD/MMC card or U disk with absolute alcohol if they are dirty, causing bad contact.

1. The power internal resistance might be high. Check the power supply connection or source.

2. The antenna connection might be bad. Tighten the antenna plug.

1. Check if one channel of the speaker wire is open circuit. Connect the speaker wire correctly.

2. The amplifier integrated circuit (IC) inside the unit might be damaged. Replace the IC of the amplifier (requires technical service).

Fault	Reasons	Solutions
LCD doesn’t display	1. Yellow wire is not connected with battery + 2. Fuse of red wire is open	Assure yellow wire is connected with battery + Replace fuse
No sound	1. No power supply 2. Speaker wire is open circuit 3. SD/MMC card, U disk don’t have song with corresponding format. 4. SD/MMC card, U disk golden finger is dirt which causes bad contact.	Connect the power wire. Connect speaker wire. Check the contents of SD/MMC card, U disk. Clean with absolute alcohol.
Low sound (not clear)	1. Power internal resistance is high. 2. Antenna is bad contact.	Replace the power supply Tighten the antenna plug.
Mono track	1. One channel of speaker wire is open circuit 2. Amplifier integrated circuit is damaged.	Connect speaker wire Replace the IC of amplifier