日本国产高清网色_日韩欧美亚免费高清视频_国产AV演绎护士的遭遇_久久这里只有精品10103 伊人久久大线影院首页,性深夜免费福利视频,日本免费A级毛一片,亚洲熟妇AV午夜无码不卡

The speaker system is one of the important components of audio equipment, generally composed of speakers, frequency dividers, boxes, sound absorption materials, etc. The defect rate of the speaker system is relatively low, and there are fewer types of problems. There are three common types of problems.

silent

1. The speaker wiring is broken or the frequency divider is abnormal.

2. The voice coil is broken.

3. The speaker lead is broken.

4. The voice coil is burned.

Sometimes there is no sound

1. Poor speaker lead.

2. The voice coil lead is broken or will be short circuited.

3. Poor contact at the output socket of the power amplifier or broken input line of the speaker.

4. Poor speaker function

5. The magnetic core column is loose.

6. Abnormal divider.

Abnormal sound

1. There are debris in the magnetic gap.

2. Wipe the core of the voice coil.

3. The paper bowl is broken.

4. Poor box condition.

Article source: LED Bluetooth audio system http://www.ponon.cn/