LED3903 - Television Manta - Free user manual and instructions
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| Product type | LED television |
| Screen size | 39 inches (99 cm) |
| Resolution | 1920 x 1080 pixels (Full HD) |
| Display technology | LED edge-lit |
| Aspect ratio | 16:9 |
| Tuner | DVB-T2/C/S2 |
| Connectivity | 2x HDMI, 2x USB, VGA, RF, AV, CI+ |
| Audio | 2 x 8 W stereo speakers |
| Power consumption | 65 W active, 0.5 W standby |
| Power supply | AC 100-240 V ~ 50/60 Hz |
| Dimensions with stand | 892 x 570 x 210 mm |
| Dimensions without stand | 892 x 530 x 70 mm |
| Weight with stand | 7.2 kg |
| Weight without stand | 6.8 kg |
| Wall mount | VESA 200 x 200 mm |
| Remote control | Included |
| Maintenance | Clean with dry soft cloth, avoid chemicals |
| Safety | Overheat and surge protection |
| Repair | Spare parts available, service manual in PDF |
| Warranty | 2 years limited warranty |
Frequently Asked Questions - LED3903 Manta
How do I connect external devices like a cable box or gaming console?
Use an HDMI cable. Connect one end to the device's HDMI output and the other to any HDMI input on the TV. Press the Source button and select the corresponding HDMI input.
How can I reset the TV to factory settings?
Press the Menu button, go to System or Setup, then select Factory Reset. Enter the PIN code (default 0000) and confirm.
Why is there no picture but audio is present?
Switch to the correct source using the Source button. Check the HDMI cable and try a different input. If using an antenna, rescan channels in the Channel Setup menu.
How do I update the TV firmware?
Visit the official Manta support website, download the latest firmware for the LED3903 to a USB drive, insert the drive into the TV, and select Software Update in the settings menu.
Can I wall-mount this TV?
Yes. The TV has VESA 200x200 mm mounting holes. Use a certified mount for 39-inch displays. Ensure the wall can support at least 7 kg.
How should I clean the screen?
Turn off and unplug the TV. Dampen a microfibre cloth with water, wring it well, and wipe gently. Never spray liquid directly or use alcohol or abrasive cleaners.
Is this TV suitable for gaming?
Yes, with Full HD 1080p and HDMI inputs. Use the Game Mode in picture settings to reduce input lag for a better experience.
How to use the USB media player?
Connect a USB drive, press Source, select USB. Supported formats include AVI, MKV, MP3, and JPEG. Browse and play files using the media player interface.
The remote control is not working, what should I do?
Check batteries, replace them if needed. Ensure the IR receiver is not blocked. Use the TV's side buttons as a temporary alternative.
How can I improve picture quality for movies?
Select the Cinema or Movie picture preset. Reduce sharpness and enable Noise Reduction. Adjust brightness and contrast to room lighting.
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USER MANUAL LED3903 Manta
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Product information
Brand : Manta
Model : LED3903
Category : Television