MMD-993S - Car radio Mystery - Free user manual and instructions

Product Type	Car Stereo
Brand	Mystery
Model	MMD-993S
Form Factor	Single DIN
Dimensions (W x H x D)	178 x 50 x 100 mm
Weight	0.6 kg
Power Supply	12V DC (negative ground)
Power Output	4 x 50W (max)
Tuner Bands	AM / FM
Preset Stations	30 (18 FM + 12 AM)
Playback Media	USB, SD/MMC, AUX
Audio Formats Supported	MP3, WMA, WAV
Display	LCD screen with backlight
Front Panel	Detachable (security)
Equalizer	Preset EQ modes (Pop, Rock, Classic, etc.)
Remote Control	Included (IR)
Connections	RCA preamp outputs (2 pairs), ISO connectors
Maintenance	Clean with soft dry cloth; avoid liquids
Safety	Replace fuse with same rating; disconnect battery when wiring
Spare Parts	Contact authorized service center for replacement parts

Frequently Asked Questions - MMD-993S Mystery

How do I install the Mystery MMD-993S car stereo?

First, disconnect the car battery negative terminal. Then, connect the ISO wiring harness matching wire colors (yellow for constant power, red for ignition, black for ground). Slide the stereo into the DIN slot and secure with the supplied screws. Reconnect battery and test.

Why is there no sound from the speakers?

Check if the stereo is powered on (look for display). Ensure speaker wires are properly connected and not shorted. Verify the volume is not muted and the fader/balance settings are correct. Also check the car's fuse.

How do I reset the stereo to factory settings?

Press the RESET button on the front panel (use a thin object like a pen). Alternatively, disconnect the battery for a few minutes and reconnect.

Can I play music from my phone via Bluetooth?

The MMD-993S does not have built-in Bluetooth. You can use the AUX input with a 3.5mm cable or an external Bluetooth adapter plugged into AUX.

What USB and SD card capacities are supported?

It supports USB drives and SD cards up to 32GB formatted in FAT32. Larger capacities may not work.

How do I set the clock?

Press and hold the CLK button (or DISP) until the time flashes. Use the volume knob or arrow buttons to adjust hours and minutes. Press CLK again to save.

Why does the display show 'NO DISC'?

This model does not have a CD player. 'NO DISC' may appear if you press the CD source button. Select another source like USB or radio.

How do I detach the front panel?

Press the RELEASE button (usually marked with an arrow) on the front panel, then pull the panel away. Store it in the protective case.

What is the fuse rating for this stereo?

The stereo uses a blade-type fuse rated at 10A (ATO/ATC). Replace only with the same rating to avoid damage.

Can I connect a rear camera?

This model does not have a dedicated video input. You would need an external monitor. However, if the unit has RCA inputs, a camera can be connected with an adapter, but it is not officially supported.

USER MANUAL MMD-993S Mystery

Diagram showing three steps of a mechanical or electrical component assembly (no text or symbols present)

Volume - Bass - Treble - Balance - Fader - EQ - Loudness - Sub-woofer

REP 1- REP DIR - REP ALL - REP OFF

DVD диск

CHANNEL	[STEREO]
CHANNEL	[MOND I]
CHANNEL	[MOND R]