当前位置: 首页 - 新闻动态 > 公司新闻 >
验货员做家庭音响检验的时候需要注意什么
更新时间:2022-08-18
文章来源:https://www.wenguangzhineng.com/
阅读量:22
家庭影院、家庭音响在人们的生活中出现的越来越普遍,那么验货员做家庭音响检验的时候需要注意什么呢?山东音响厂家总结了相关内容,如果觉得有用,别忘了关注收藏!
Home theater and home audio are becoming more and more popular in people's lives. What should inspectors pay attention to when conducting home audio inspection? Shandong audio manufacturers summarized the relevant content. If you think it is useful, don't forget to pay attention to the collection!
1.音响检验流程
1. Audio inspection process
1)包装检查
1) Packaging inspection
2)外观检查
2) Visual inspection
3)安全检查
3) Safety inspection
4)功能检查
4) Function check
5)特别检查(老化,擦拭,拉力,内部检查等)
5) Special inspection (aging, wiping, tension, internal inspection, etc.)
6)参数测试
6) Parameter test
2.高压测试参数
2. High voltage test parameters
EN60065:3000VAC/5mA/2SUL60065:1200VAC/10mA/2S
EN60065:3000VAC/5mA/2SUL60065:1200VAC/10mA/2S
3.功能测试
3. Function test
音响检验的难点在于我们听到的声音看不见(在示波器上也是杂乱无章的波形),摸不着,并且每个人的听力各有差异。从用户的角度,个人有个人的喜好,有人特别讨厌功放的滋滋声,有人又特别讨厌低音的嗡嗡声,这些都增加检验的难度。我们须长期训练,练就明锐的听觉,积累经验,才能判别各类产品缺陷。
The difficulty of acoustic inspection is that the sound we hear is invisible (chaotic waveform on the oscilloscope) and can not be touched, and everyone's hearing is different. From the user's point of view, some people have their own preferences, some people especially hate the noise of the power amplifier, and some people especially hate the buzz of the bass. All these increase the difficulty of the test. We need long-term training, sharpening our hearing and accumulating experience to identify various product defects.
4.调谐器(收音机)检验
4. Tuner (radio) inspection
1)波段开关(对电调谐产品是按钮)检查
1) Band switch (button for electric tuning products) inspection
常见问题:无功能,功能不良,
Common problems: no function, poor function,
原因:来料不良,装配不良或者松香等异物渗入开关
Cause: poor incoming materials, poor assembly or foreign matters such as rosin infiltrate the switch
2)频率覆盖检查
2) Frequency coverage check
检查方法:调台至560KHZ(低端)1600KHZ(高端)88MHZ(低端)108MHZ(高端)应能清晰听到工厂发的测试信号
Inspection method: adjust the console to 560khz (low end), 1600khz (high end), 88mhz (low end) and 108MHz (high end). The test signal sent by the factory shall be clearly heard
常见问题:覆盖偏(现象:高低端听不见信号)
Common problems: coverage deviation (phenomenon: no signal is heard at high and low ends)
原因:工厂三点通调偏差。
Cause: Factory three-point adjustment deviation.
3)灵敏度(停台灵敏度)检查
3) Sensitivity (stop sensitivity) check
检查方法:手动调台至600KHz/1000KHz/1400kHz90MHz/98MHz/106MHz,应能清晰听到工厂发的测试信号,声音洪亮不失真,电调谐的应在以上频率停住
Inspection method: manually adjust the console to 600kHz / 1000khz / 1400khz 90mhz / 98mhz / 106mhz, and the test signal sent by the factory shall be clearly heard. The sound shall be loud and undistorted, and the electrically tuned one shall stop at the above frequency
常见问题:乱停台,灵敏度低,声音失真
Common problems: random stop, low sensitivity, sound distortion
原因:工厂三点通调偏差,高放电路不均衡等
Cause: Factory three-point adjustment deviation, unbalanced high-voltage amplifier circuit, etc
山东音响
4)全频段音质检查
4) Full band sound quality inspection
检查方法:由低到高调台,用布包的木锤子敲击产品,整个频段应声音清晰失真。
Inspection method: from low to high, use a cloth wrapped wooden hammer to knock the product. The whole frequency band should have clear and distorted sound.
常见问题:啸叫,拍杂,敲铃,杂音。
Common problems: howling, clapping, ringing, noise.
原因:虚焊,假焊,元件靠的过近,元件晃动
Cause: false welding, false welding, too close to components, shaking of components
5)立体声(点灯灵敏度)检查
5) Stereo (lighting sensitivity) check
检查方法:调台至厂发立体声频率,应能清晰听到立体声和作用声道的差异
Inspection method: adjust the console to the factory generated stereo frequency, and the difference between stereo and active channel shall be clearly heard
常见问题:无立体声,分离度查,灯(指示)不亮
Common problems: no stereo, separation check, light (indicator) not on
原因:38KHz副载波信号调整不良
Cause: poor adjustment of 38kHz subcarrier signal
5.录音座检验
5. Inspection of recording base
1)机芯功能检查
1) Functional inspection of movement
检查方法:拿一盒去掉防抹片的磁带,放入卡座中,测试快进,倒带,防抹,自停功能
Inspection method: take a tape with the anti erasing film removed, put it into the card holder, and test the fast forward, rewind, anti erasing and self stop functions
常见问题:无功能,卷带,机械噪音
Common problems: no function, tape winding, mechanical noise
原因:机芯来料不良,装配不良,机芯碰其他元件
Cause: poor incoming materials and assembly of the movement, and the movement touches other components
2)录音/放音检查
2) Recording / playback check
检查方法:拿一盒空白磁带,放入卡座中,测试录音,拿一盒音乐磁带,测试放音,用布包的木锤子敲击产品
Inspection method: take a blank tape, put it into the card holder, test the recording, take a music tape, test the playback, and knock the product with a cloth wrapped wooden hammer
常见问题:无录音,录音低杂,录音啸叫,放音低杂,失真,窜音,单声道低,拍杂等
Common problems: no recording, recording low noise, recording howling, playing low noise, distortion, channeling, mono low, shooting noise, etc
原因:带速调试不准,磁头方位角调试不良,焊接不良,咪不良,偏磁电路自激等。
Causes: inaccurate belt speed adjustment, poor azimuth angle adjustment of magnetic head, poor welding, poor microphone, self excitation of magnetic bias circuit, etc.
6.功率放大器检验
6. Power amplifier inspection
1)输入端口,选择开关检查
1) Input port, selection switch check
检查方法:连接各个输入端口,按动各路开关,检查输出
Inspection method: connect each input port, press each switch, and check the output
常见问题:无输出,开关不良,按键声
Common problems: no output, poor switch, key sound
原因:开关来料不良,焊接不良
Cause: poor incoming materials and poor welding of switches
2)音质检查
2) Sound quality inspection
检查方法:用DVD或者CD播放自己熟悉的音乐碟和测试碟,输入功放,调整音调和音量,用布包的木锤子敲击产品
Inspection method: play familiar music discs and test discs with DVD or CD, input the power amplifier, adjust the tone and volume, and knock the product with a cloth wrapped wooden hammer
常见问题:交流声,失真(声音沙,声音闷,声音破,声音抖,声音飘等),拍杂,音调功能不良等。
Common problems: AC sound, distortion (sound sand, sound dull, sound broken, sound shaking, sound floating, etc.), beat noise, poor tone function, etc.
原因:电源纹波过多,电路高低频不匹配,焊接不良等。
Causes: excessive power ripple, mismatch between high and low frequency of the circuit, poor welding, etc.
验货员做家庭音响检验的时候需要注意什么?在这里,我们从六个方面来进行检验测试,实际上还有很多种的测试项目,您要在实际应用时做好应对措施才行,更多内容就来我们网站https://www.wenguangzhineng.com咨询吧。
What do inspectors need to pay attention to when doing home audio inspection? Here, we conduct inspection and test from six aspects. In fact, there are many kinds of test items. You should take appropriate measures in practical application. For more information, please visit our website https://www.wenguangzhineng.com Consult.

地址:山东省济南市历下区利农庄路2号南苑

电话:18954185191

网址:https://www.wenguangzhineng.com/

E-mail:331365650@qq.com

备案号:鲁ICP备2021012828号-1 鲁公网安备 37010202002516号

技术支持:网站建设·推广运营 流量统计:

山东闻广智能科技有限公司 Shandong Wenguang Intelligent Technology Co., Ltd