C FOUR - Receiver Helix - Free user manual and instructions
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| Product Type | Car Audio Receiver |
| Dimensions (W x H x D) | 178 x 50 x 160 mm (1-DIN) |
| Weight | 1.2 kg |
| Power Supply | 12V DC (vehicle battery) |
| Output Power | 4 x 50 Watts RMS |
| Main Functions | AM/FM tuner, Bluetooth, USB, AUX input, CD/MP3 playback (if applicable) |
| Care and Cleaning | Clean with a soft, dry cloth. Do not use liquid cleaners. |
| Safety | Fuse protection, reverse polarity protection, overheating protection |
| Spare Parts and Repairability | Replacement parts available through authorized Helix dealers; repair by qualified technicians only |
| General Information | ISO connector compatible; supports steering wheel remote control (interface required) |
Frequently Asked Questions - C FOUR Helix
How do I connect my phone via Bluetooth?
Press the BT button on the front panel to enter Bluetooth pairing mode. On your phone, search for 'Helix C FOUR' and select it. Enter PIN 0000 if prompted.
Why is there no sound from the speakers?
Check that the receiver is turned on and the volume is not muted. Ensure speaker wires are securely connected and the correct source (e.g., radio, USB) is selected. Also check the fuse.
How do I reset the receiver to factory settings?
Press and hold the RST button (or use a pin to press the reset hole) for 5 seconds. This will clear all settings.
Can I play music from a USB drive?
Yes, insert a USB drive with MP3 or WMA files. The receiver will automatically start playback. Use the controls to navigate folders.
What is the maximum supported USB capacity?
The receiver supports USB drives up to 32 GB formatted in FAT32.
How do I connect an external amplifier?
Use the RCA preamp outputs on the rear of the receiver. Connect them to the amplifier's input. Ensure proper gain settings to avoid distortion.
How do I set the clock?
Press and hold the CLK button until the hour flashes. Rotate the volume knob to adjust, then press CLK again to set minutes. Press CLK to confirm.
Why does the receiver turn off intermittently?
This could be due to overheating or a loose power connection. Ensure the ventilation slots are clear and check the power and ground wires for secure connections. Replace the fuse if blown.
How do I clean the front panel?
Use a soft, slightly damp cloth (water only) to wipe the panel. Avoid abrasive cleaners. Do not spray liquid directly onto the receiver.
What is the warranty period for the Helix C FOUR?
The standard warranty is 2 years from the date of purchase. Register your product online to activate warranty.
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