รหัสสินค้า : MT-304

แอมป์คาราโอเกะ MT-304 ยี่ห้อ  MICRO TECH

ALL in One Karaoka MICRO TECH MT-304

- กำลังขับ 150 วัตต์ x 4 Ch

- ช่องเสียบ USB,SD Card

- เชื่อมต่อผ่านบูลทูธ

- ช่องเสียบไมค์ 2 ช่อง

Troubleshooting System specification

Amplifier specification

Possible cause Method of exclusion Problem

Type 3 Type 1 Type 2

Check if the power outlet is Power. 220V 50Hz 220V 50Hz 220V 50Hz

Power outlet is not working

working or not Amplifier power-on

SDUSBLINE Bluetoothl SDAUSBILINEBluetoothl SDIUSBILINEBluetoothl

but it doesn't work

Audio input: two wireless microphonel two wireless microphonel two wireless microphonel Check fuse Fuse misses / burned

two wired microphone input two wired microphone input two wired microphone input

Music form: MP3WAVIFLAC MP3WAVIFLAC MP3WAVIFLAC Correct selection of input

Input signal selection error

signal

Bluetooth receive

10 meters 10 meters 10 meters

distance: No sound from the The volume switch is adjusted Adjust the volume to the

speaker to the minimum position appropriate position <5% Harmonic distortion: <5% <5%

Frequency range: Check if the connection cable 20Kz~20KHz +1dB 20Hz~20KHz +1dB 20Hz-20KHz +1dB Speaker connection cable

is connected well or not is loose Signal-1o-Noise Ratio: 275dB >75dB 275dB

Input sensitivity. MIC -60dB/LINE -20dB MIC -60dB/LINE -20dB MIC -60dB/LINE -20dB Adjust the balance

No sound on one Balance potentiometer to

potentiometer to the middle Crosstalk damping: 2740dB >40dB >40dB side of the speaker one side

position

Max output power. 2x100W 2x100W 2x100W

The microphone plug is not Insert the microphone plug

Matching impedance: 40 40 45

fully inserted correctly

Output impedance: 40~80 45~80 45~80

No voice from wired The microphone switch is not

Power consumption: 300W 300W