家庭影院、家庭音響在人們的生活中出現的越來(lái)越普遍，那么驗貨員做家庭音響檢驗的時(shí)候需要注意什么呢？
山東音響廠(chǎng)家總結了相關(guān)內容，如果覺(jué)得有用，別忘了關(guān)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.音響檢驗流程
1. Audio inspection process
1)包裝檢查
1) Packaging inspection
2)外觀(guān)檢查
2) Visual inspection
3)檢查
3) Safety inspection
4)功能檢查
4) Function check
5)特別檢查(老化，擦拭，拉力，內部檢查等)
5) Special inspection (aging, wiping, tension, internal inspection, etc.)
6)參數測試
6) Parameter test
2.高壓測試參數
2. High voltage test parameters
EN60065：3000VAC/5mA/2SUL60065：1200VAC/10mA/2S
EN60065：3000VAC/5mA/2SUL60065：1200VAC/10mA/2S
3.功能測試
3. Function test
音響檢驗的難點(diǎn)在于我們聽(tīng)到的聲音看不見(jiàn)(在示波器上也是雜亂無(wú)章的波形)，摸不著(zhù)，并且每個(gè)人的聽(tīng)力各有差異。從用戶(hù)的角度，個(gè)人有個(gè)人的喜好，有人特別討厭功放的滋滋聲，有人又特別討厭低音的嗡嗡聲，這些都增加檢驗的難度。我們須長(cháng)期訓練，練就明銳的聽(tīng)覺(jué)，積累經(jīng)驗，才能判別各類(lèi)產(chǎn)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.調諧器(收音機)檢驗
4. Tuner (radio) inspection
1)波段開(kāi)關(guān)(對電調諧產(chǎn)品是按鈕)檢查
1) Band switch (button for electric tuning products) inspection
常見(jiàn)問(wèn)題：無(wú)功能，功能不良，
Common problems: no function, poor function,
原因:來(lái)料不良，裝配不良或者松香等異物滲入開(kāi)關(guān)
Cause: poor incoming materials, poor assembly or foreign matters such as rosin infiltrate the switch
2)頻率覆蓋檢查
2) Frequency coverage check
檢查方法：調臺560KHZ(低端)1600KHZ(高端)88MHZ(低端)108MHZ(高端)應能清晰聽(tīng)到工廠(chǎng)發(fā)的測試信號
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
常見(jiàn)問(wèn)題：覆蓋偏(現象：高低端聽(tīng)不見(jiàn)信號)
Common problems: coverage deviation (phenomenon: no signal is heard at high and low ends)
原因:工廠(chǎng)三點(diǎn)通調偏差。
Cause: Factory three-point adjustment deviation.
3)靈敏度(停臺靈敏度)檢查
3) Sensitivity (stop sensitivity) check
檢查方法：手動(dòng)調臺600KHz/1000KHz/1400kHz90MHz/98MHz/106MHz,應能清晰聽(tīng)到工廠(chǎng)發(fā)的測試信號，聲音洪亮不失真，電調諧的應在以上頻率停住
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
常見(jiàn)問(wèn)題：亂停臺,靈敏度低,聲音失真
Common problems: random stop, low sensitivity, sound distortion
原因：工廠(chǎng)三點(diǎn)通調偏差，高放電路不均衡等
Cause: Factory three-point adjustment deviation, unbalanced high-voltage amplifier circuit, etc
4)全頻段音質(zhì)檢查
4) Full band sound quality inspection
檢查方法:由低到高調臺，用布包的木錘子敲擊產(chǎn)品,整個(gè)頻段應聲音清晰失真。
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.
常見(jiàn)問(wèn)題:嘯叫,拍雜，敲鈴，雜音。
Common problems: howling, clapping, ringing, noise.
原因：虛焊，假焊,元件靠的過(guò)近，元件晃動(dòng)
Cause: false welding, false welding, too close to components, shaking of components
5)立體聲(點(diǎn)燈靈敏度)檢查
5) Stereo (lighting sensitivity) check
檢查方法：調臺廠(chǎng)發(fā)立體聲頻率，應能清晰聽(tīng)到立體聲和作用聲道的差異
Inspection method: adjust the console to the factory generated stereo frequency, and the difference between stereo and active channel shall be clearly heard
常見(jiàn)問(wèn)題：無(wú)立體聲，分離度查，燈(指示)不亮
Common problems: no stereo, separation check, light (indicator) not on
原因：38KHz副載波信號調整不良
Cause: poor adjustment of 38kHz subcarrier signal
5.錄音座檢驗
5. Inspection of recording base
1)機芯功能檢查
1) Functional inspection of movement
檢查方法：拿一盒去掉防抹片的磁帶，放入卡座中，測試快進(jìn)，倒帶，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
常見(jiàn)問(wèn)題：無(wú)功能，卷帶，機械噪音
Common problems: no function, tape winding, mechanical noise
原因：機芯來(lái)料不良，裝配不良，機芯碰其他元件
Cause: poor incoming materials and assembly of the movement, and the movement touches other components
2)錄音/放音檢查
2) Recording / playback check
檢查方法：拿一盒空白磁帶，放入卡座中，測試錄音，拿一盒音樂(lè )磁帶，測試放音，用布包的木錘子敲擊產(chǎn)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
常見(jiàn)問(wèn)題:無(wú)錄音,錄音低雜，錄音嘯叫，放音低雜，失真，竄音，單聲道低，拍雜等
Common problems: no recording, recording low noise, recording howling, playing low noise, distortion, channeling, mono low, shooting noise, etc
原因：帶速調試不準，磁頭方位角調試不良，焊接不良，咪不良，偏磁電路自激等。
Causes: inaccurate belt speed adjustment, poor azimuth angle adjustment of magnetic head, poor welding, poor microphone, self excitation of magnetic bias circuit, etc.
6.功率放大器檢驗
6. Power amplifier inspection
1)輸入端口，選擇開(kāi)關(guān)檢查
1) Input port, selection switch check
檢查方法：連接各個(gè)輸入端口，按動(dòng)各路開(kāi)關(guān)，檢查輸出
Inspection method: connect each input port, press each switch, and check the output
常見(jiàn)問(wèn)題：無(wú)輸出，開(kāi)關(guān)不良，按鍵聲
Common problems: no output, poor switch, key sound
原因:開(kāi)關(guān)來(lái)料不良，焊接不良
Cause: poor incoming materials and poor welding of switches
2)音質(zhì)檢查
2) Sound quality inspection
檢查方法：用DVD或者CD播放自己熟悉的音樂(lè )碟和測試碟，輸入功放，調整音調和音量，用布包的木錘子敲擊產(chǎn)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
常見(jiàn)問(wèn)題：交流聲，失真(聲音沙，聲音悶，聲音破，聲音抖，聲音飄等)，拍雜，音調功能不良等。
Common problems: AC sound, distortion (sound sand, sound dull, sound broken, sound shaking, sound floating, etc.), beat noise, poor tone function, etc.
原因：電源紋波過(guò)多，電路高低頻不匹配，焊接不良等。
Causes: excessive power ripple, mismatch between high and low frequency of the circuit, poor welding, etc.
驗貨員做家庭音響檢驗的時(shí)候需要注意什么？在這里，我們從六個(gè)方面來(lái)進(jìn)行檢驗測試，實(shí)際上還有很多種的測試項目，您要在實(shí)際應用時(shí)做好應對措施才行，更多內容就來(lái)我們網(wǎng)站
http://m.djfrj.net.cn咨詢(xún)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 http://m.djfrj.net.cn Consult.
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