Why does my Sony MHC-V21 display “PROTECT3” after turning on?
If “PROTECT3” is displayed on the screen of your Sony Stereo System after turning the power on, it indicates that the MOTHERBOARD board is damaged. The suggested solution is to exchange the complete MOTHERBOARD board.
General| Model Number | MHC-V21 |
|---|---|
| Connectivity | Bluetooth, USB |
| Bluetooth | Yes |
| USB Port | Yes |
| Karaoke Function | Yes |
| FM Radio | Yes |
| USB playback | Yes |
| CD Player | Yes |
| Lighting Effects | Yes |
Connect the antenna, audio jacks, and power cord for initial setup.
How to play audio from CDs and USB devices.
Copy audio files from discs to USB devices.
Tune into FM radio stations using automatic or manual scan.
Steps to register BLUETOOTH devices for connection.
Play music wirelessly from a connected BLUETOOTH device.
Connect up to three BLUETOOTH devices simultaneously.
Control bass, sound fields, and DJ effects.
Connect multiple systems via cable for synchronized playback.
Connect multiple systems wirelessly via BLUETOOTH for synchronized playback.
Use two systems for enhanced sound via BLUETOOTH.
Use microphone, adjust echo, and change voice effects.
Solutions for common system problems and error messages.
Important safety measures and handling guidelines for the unit.
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