1. 尼康z6ii拍視頻

如果拍人像居多的，可以考慮35s+85s的組合，室內(nèi)外兼顧，極致一點還可以50 1.8s+105 1.4E的組合，雖然105E是F卡口，但這個規(guī)格z卡口遙遙無期，當然預(yù)算也要加不少了。

2. 尼康Z6拍視頻

可以，尼康Z 6Ⅱ采用的是雙卡槽設(shè)計，CFexpress (B型)（兼容XQD） 和SD卡可以靈活使用，不用擔心可靠性。而電池方面搭載的是EN-EL15c電池，且可支持USB充電供電。只需要一個充電寶，就可以實現(xiàn)邊拍邊充，如果對于突發(fā)情況導(dǎo)致沒電這可就是救急了。

3. 尼康z6ii怎么拍視頻

尼康沒有l(wèi)og模式影響不大的。尼康z 系列微單雖沒有提供Log模式，但提供了Flat功能，可以理解成“高級灰”模式，給視頻后期留下一定的空間。

4. 尼康Z6II拍視頻拖尾

自從液晶電視上市以來，逐漸受到了人們的喜愛，很多人家里都安裝了液晶電視。和普遍的電視機相比，液晶電視比較省電、較為環(huán)保。但是對于電器來說，使用久了，出現(xiàn)故障也在所難免，那么該如何維修呢？

基礎(chǔ)知識

組成結(jié)構(gòu)

液晶電視機的組成原理，大體有4個主要功能模塊電源板，電視主板，邏輯板，背光模塊，以及屏線，遙控器，按鍵輸入和喇叭輸出。

電源板

顧名思義，電源板負責整臺電視的供電。功能好比人的心臟，給人全身輸送能量。如果電源板壞了，就像人的心臟停止跳動，電視機自然就不能工作了。

很多黑屏，背光不亮，指示燈不亮，遙控按鍵不起作用等現(xiàn)象都是因為電源板故障引起。

電視主板

電視主板是整個電視機控制的核心，也可以說是電視的大腦。

如果電視主板出現(xiàn)問題，可能導(dǎo)致指示燈不亮、或者指示燈顏色異常、遙控按鍵無響應(yīng)、黑屏、花屏等現(xiàn)象。

邏輯板

邏輯板也稱TCON板，是信號中轉(zhuǎn)站。負責將主板的LVDS信號轉(zhuǎn)換成屏能處理的TCON信號。

如果TCON壞了，可能導(dǎo)致畫面黑屏，花屏，條紋干擾，屏閃，屏保等異?，F(xiàn)象。

背光模塊

背光模塊的功能是給電視機顯示提供背光光源。

如果電視背光不亮，很有可能是背光模塊出現(xiàn)了問題。

LVDS信號線

屏線，又稱差分信號線。如果接口松動，接觸不良，很容易導(dǎo)致黑屏，雪花點干擾，花屏等異常現(xiàn)象。

注意：4K電視，因為數(shù)據(jù)量大，LVDS信號線已無法滿足傳輸要求，一般都采用V-BY-ONE的信號線傳輸。

遙控接收頭

遙控接收頭，也稱IR，負責接收遙控器的紅外控制信號。如果按遙控器沒有反應(yīng)，可能是遙控接收頭出現(xiàn)問題。

按鍵板

如果遙控器可以正常操作，但按鍵板不起作用，估計是按鍵板或者相關(guān)電路壞了。

三合一板卡

將背光模塊，電源板和電視主板集合到一塊板卡上，俗稱三合一板卡。將背光模塊，電源板和電視主板集合到一塊板卡上，俗稱三合一板卡。

隨著產(chǎn)品的標準和規(guī)范化，電視模塊將越來越簡化。目前市面上的電視，里面的模塊基本都簡化成兩片電路了，一塊三合一主板加一片邏輯板。

工作原理

如上圖，紅色的箭頭是供電電路，藍色的箭頭是信號電路。

電源板負責將220V交流電壓轉(zhuǎn)換成各個模塊工作所需的直流電壓；

電視主板負責處理按鍵信號，響應(yīng)遙控器信號；

控制電源板開關(guān)，直接或間接控制背光模塊；

接收各類視頻信號，圖像轉(zhuǎn)化成LVDS信號輸送給邏輯板；

聲音信號輸出到喇叭；

邏輯板主要功能是將電視主板輸出的LVDS信號轉(zhuǎn)換成液晶屏能處理的TCON信號；

背光模塊負責給背光燈條供電。

維修常用工具

螺絲刀

螺絲刀是工具，分手動或電動，用于旋擰（安裝）和旋松（除去）螺釘。

鑷子鉗

夾持導(dǎo)線、元件及集成電路引腳等。

萬用表

，萬用表又稱為復(fù)用表、多用表、三用表、繁用表等，是電力電子等部門不可缺少的測量儀表，一般以測量電壓、電流和電阻為主要目的。

示波器

示波器是一種用途十分廣泛的電子測量儀器。它能把肉眼看不見的電信號變換成看得見的圖像，便于人們研究各種電現(xiàn)象的變化過程。

溫度可調(diào)熱風槍

熱風槍主要是利用發(fā)熱電阻絲的槍芯吹出的熱風來對元件進行焊接與摘取元件的工具。

電烙鐵

電烙鐵是電子制作和電器維修的必備工具，主要用途是焊接元件及導(dǎo)線。

錫絲

錫絲的特質(zhì)是具有一定的長度與直徑的錫合金絲，在電子原器件的焊接中可與電烙鐵或激光配合使用。

維修技巧

基本維修的方法

直觀法

肉眼觀察燒黑的地方，看有無連接線松動及元器件擊穿的情況。

觸摸法

用手觸摸關(guān)鍵部件，觀察供電部分發(fā)熱情況(數(shù)字板)，特別是對老化幾小時后出現(xiàn)的軟故障情況比較實用。

問題法

了解故障出現(xiàn)的具體狀態(tài)(比如雷擊、打火、冒煙、積水及以及人為操作等)。

測量法

使用萬用表、示波器測量(有些情況可用指針式萬用表交流來代替示波器測量一些普通的信號)。

代換法

有條件的情況下，可以代換電源板，數(shù)字板，高頻板，背光板，屏，LVDS數(shù)據(jù)線，軟件等，這種方法維修快。

排除法

縮小檢修范圍，準確判斷故障位置(如信號源部分、信號通道部分)。

邏輯檢修法

該方法要求對所修板件的信號流程、電源邏輯關(guān)系非常熟悉，可以確定維修的順序：是先從后級向前級檢修，還是單一通道向公共通道檢修等等。

滿足法

先大體確定故障部位后，再檢修部分電路的工作條件是否滿足(特殊情況下可人為制造工作條件)。

對比法

條件允許的情況下，可以對比好的板件進行檢修，也可以對比同一板件上相同的電路(對稱電路)來進行檢修。

先軟件后硬件

軟件涉及的故障范圍廣，但是需要檢修的范圍小，對于一些軟故障，建議先升級軟件。

初步檢修流程

維修口訣

液晶維修并不難，工作原理記心間；

電壓來自電源板，亮度來自背光源；

信號處理機芯板，顯示分配控制板；

5V供電最勤勞，一年四季歇不了；

12V供給機芯板，中放功放向它看；

24V送到背光板，無它屏幕缺光源；

機芯板子是領(lǐng)導(dǎo)，開關(guān)信號向它要；

電源模塊背光板，電平高開（機）低關(guān)；

PWM脈沖很重要，少了亮度提不高；

LVDS線要求高，變質(zhì)松動有干擾；

液晶電視不普通，程序經(jīng)常鬧罷工；

三天兩天發(fā)神經(jīng)，需要復(fù)位來擺平；

液晶屏幕很脆弱，要維修時細（心）操作

平板維修費用高，學(xué)好技術(shù)很辛勞；

賺錢固然很重要，安全二字記心牢。

常見故障分析

顯示器整機無電

1、電源故障

這是一個應(yīng)該說是非常簡單的故障，一般的液晶顯示器分機內(nèi)電源和機外電源兩種，機外的常見一些。不論那種電源，易損的一般是一些小元件，象保險管、整流橋、300V濾波電容、電源開關(guān)管、電源管理IC、整流輸出二極管、濾波電容等。這些常用的芯片在專業(yè)液晶配件店里都能買到。

2、驅(qū)動板故障

驅(qū)動板燒保險或者是穩(wěn)壓芯片出現(xiàn)故障，有部分機器是把開關(guān)電源內(nèi)置，輸出兩組電源，其中一組是5V，供信號處理用，另外一組是12V提供高壓板點背光用，如果開關(guān)電源部分電路出現(xiàn)了故障會有可能導(dǎo)致兩組電源均沒輸出先查12V電壓正常否，跟著查5V電壓正常否，因為A/D驅(qū)動板的MCU芯片的工作電壓是5V，所以查找開不了機的故障時，先用萬用表測量5V電壓，如果沒有5V電壓或者5V電壓變得很低，那么一種可能是電源電路輸入級出現(xiàn)了問題，也就是說12V轉(zhuǎn)換到5V的電源部分出了問題，這種故障很常見檢查5端穩(wěn)壓塊(常見型號8050SD-LM2596-AIC15-01等)。

另一種可能就是5V的負載加重了，把5V電壓拉得很低，換一種說法就是說，后級的信號處理電路出了問題，有部分電路損壞，引起負載加重，把5V電壓拉得很低，逐一排查后級出現(xiàn)問題的元件，替換掉出現(xiàn)故障的元件后，5V能恢復(fù)正常，故障一般就此解決，也經(jīng)常遇到5V電壓恢復(fù)正常后還不能正常開機的，這種情況也有多種原因，一方面是MCU的程序被沖掉可能會導(dǎo)致不開機。還有就是MCU本身損壞，比如說MCU的I/O口損壞，使MCU掃描不了按鍵，遇到這種由MCU引起的故障，找硬件的問題是沒有用的，就算你換了MCU也解決不了問題，因為MCU是需要編程和寫碼的，在沒辦法找到原廠的AD驅(qū)動板替換的情況下，我們只能用通用A/D驅(qū)動板代換如151D或161B等。

顯示屏黑屏，無背光，電源燈綠燈常亮

斜視液晶屏有顯示圖像，是因為MCU問題造成沒有輸出開關(guān)控制電壓，可以直接提取3端穩(wěn)壓塊的。

(AIC1084)3.3V代替，修理高壓板的思路(電源保險絲--開關(guān)控制管--電源管理IC--推挽發(fā)大管--電源開關(guān)管--DA轉(zhuǎn)換電路(儲能電感整流管)--LC升壓電路(升壓變壓器、升壓電容)--耦合電容--燈管。

屏幕亮線，亮帶或者是暗線

這種問題，一般是液晶屏的故障。

亮線故障一般是連接液晶屏本體的排線出了問題或者某行和列的驅(qū)動IC損壞

暗線一般是屏的本體有漏電，或者TAB柔性板連線開路以上兩種問題基本上就是給機器判了死刑了，沒有維修價值的，因為一塊屏的價格太高了。(廣州有專門更換碼片的，收費極高，返修率也高)。

花屏或者是白屏

這種問題一般是屏的驅(qū)動電壓出了問題，先換驅(qū)動板和驅(qū)屏線試驗，若不行檢查屏背板供電電路。

維修思路：驅(qū)動板5V轉(zhuǎn)3.3V的穩(wěn)壓塊(AIC1084)是否有供電輸出--屏體驅(qū)動板保險絲(F)-3.3V--DC轉(zhuǎn)換電路--負壓形成IC(-7V)--行列驅(qū)動IC。

AAT1101AM150XN05屏電源管理芯片，損壞后表現(xiàn)為白屏開機圖像暗淡等。

AAT1164M170EG01新款屏通病，主要用在明基FP71G+液晶顯示器上面。用一段時間會白屏、關(guān)機在開用一段時間又出現(xiàn)白屏。本芯片為液晶屏高壓產(chǎn)生及管理芯片、明基液晶顯示器常壞、故障為：白屏。

偏色故障

一般可以進入工廠調(diào)整模式進行調(diào)整。

維修思路：更換屏線和轉(zhuǎn)接板--重寫驅(qū)動程序--驅(qū)動板壞(不常見)--屏背板的控制IC壞(不常見)--拔掉屏線觀察背光顏色(背光偏色為燈管老化)--換燈管。

字符虛或拖尾

維修思路：檢查VGA信號線，重點看RGB三色線的地線是否連接正常--更換屏線或轉(zhuǎn)接板--重寫驅(qū)動程序--換驅(qū)動板--LCD屏背板信號接口 IC壞--LCD屏背板對比度電位器調(diào)整--LCD屏導(dǎo)光板錯位--偏光片錯位。

LCD屏幕內(nèi)部有污點

維修思路：擦拭或更換換保護膜--拆開屏體清洗外層偏光片和有機玻璃(用棉球純凈水處理)--風筒吹干。

LCD屏漏光或光線不均

維修思路:重新安裝燈管--調(diào)整導(dǎo)光板。

LCD屏亮點

一個或二個大的亮點，可以嘗試輕輕用指尖壓亮點，可消失,說明多為此像素的開關(guān)管和電極虛連小的黑點和灰點有可能是內(nèi)部導(dǎo)光板或偏光片有灰塵造成可清洗處理。

LCD屏亮度低

檢查高壓板ADJ亮度調(diào)節(jié)電路--換燈管--換高壓板---調(diào)整或更換導(dǎo)光板。

錯誤提示超出頻率范圍

檢查信號線--重寫MCU驅(qū)動程序--更換EPROM--重寫EPROM程序--換驅(qū)動板。

通電后不按開關(guān)按鍵即白屏，出現(xiàn)背光按鍵后圖像可正常顯示

高壓板接口的開關(guān)信號和ADJ信號反接造成部分屬于驅(qū)動板MCU的開關(guān)信號輸出不正常，可以重寫MCU程序修復(fù)--換MCU。

補充一點，對于燈管老化的屏更換時要搞清燈管的尺寸，因為盡管屏幕尺寸一樣，但是燈管長度與粗細略有差異，在找不到相同尺寸燈管的時候，如果能用短燈則好，如果不能使用，稍長的的燈管用手術(shù)刀小心切除屏框，并用熱縮管做好絕緣。

注意事項

電視機是有電高壓的一種電器，維修時有關(guān)的安全問題一定要注意。

1、打開機殼：要注意不能用蠻力打開機殼，如果太緊打不開，一定是還有螺釘或卡扣沒有松開，要再仔細找找；拉開機殼時有的電視機電路板與機殼之間會有電線相連，要注意不要拉壞，比較好先折下機殼上固定的電路板；拉開機殼時要拿穩(wěn)機殼，不要脫手掉下，否則容易砸到顯像管管徑，一旦砸斷可就麻煩了。

2、要注意電視機的“熱地”：有的電視機的電路板的地是“熱地”，就是與市電沒有隔離，如果恰巧電視機的電源插頭又將未隔離的電視機的“地”端插到市電的“火”線上，那么維修時如果你不小心碰到電視機的某個接“地”的部分，就有觸電的危險。一方面觸電本身很危險，另一方面人在觸電時身體會發(fā)生不由自主的痙攣，一旦把電視機拉到地上，就又出大麻煩了。解決這個問題比較好是用隔離變壓器，如果沒有，比較好在電視機通電時能調(diào)整好插頭方向，使電視機的“地”接到市電的“零”線上，這樣可以使電視機比較容易碰到的地方不“電”人，但是電視機里還是有與“火”線相連的強電的，仍然要小心。

3、要注意電視機內(nèi)的高壓：在更換行輸出變壓器的時候，一定要用萬用表筆或其它導(dǎo)線將顯像管高壓帽下的高壓泄放干凈，否則在摘下高壓連線時會受到高壓電擊，同樣比較危險。

如何保養(yǎng)

1、保持干燥

放置的中央，環(huán)境要保持干燥并遠離化學(xué)藥品。假如放置環(huán)境濕度很大，電器內(nèi)部就會結(jié)露，容易形成漏電、短路等。平常使用的發(fā)膠、滅蚊劑等都是高揮發(fā)性化學(xué)品，也會對液晶顯現(xiàn)屏形成損傷。

2、亮度調(diào)低

日常使用，盡量防止長時間顯現(xiàn)同一張畫面。長時間工作容易惹起內(nèi)部老化或燒壞，特別糟糕的是長時間內(nèi)顯現(xiàn)同一畫面，可能會招致某些像素過熱，形成內(nèi)部產(chǎn)生壞點。而這種損壞不能修復(fù)。因而不用時應(yīng)該關(guān)閉顯現(xiàn)屏或選擇屏幕保護程序，或者把顯現(xiàn)屏亮度調(diào)低點。

3、不能頻繁清洗

液晶顯現(xiàn)屏不能頻繁清洗。正確的清潔辦法是拿一塊沾有少許玻璃清潔劑的屏幕擦布，輕力把污跡擦去。注意不要讓清潔劑流到屏幕、屏框接口中，以免出現(xiàn)短路。也不要用硬質(zhì)毛巾擦洗，以免刮花屏幕。還要定時定量擦洗。

4、制止壞習(xí)氣

杜絕使用壞習(xí)氣。不要用手對屏幕指指點點。此外變壓器電壓很高，不要在帶電的狀況下翻開屏的后蓋。

%3Chowto_content%3E[{"type":"paragraph","attrs":{"is_abstract":true},"children":[{"type":"text","text":"自從液晶電視上市以來，逐漸受到了人們的喜愛，很多人家里都安裝了液晶電視。和普遍的電視機相比，液晶電視比較省電、較為環(huán)保。但是對于電器來說，使用久了，出現(xiàn)故障也在所難免，那么該如何維修呢？","id":""}],"text":"","id":"WW8Ide2aGoiCgsxk5encV6gvnkh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"基礎(chǔ)知識","id":""}],"text":"","id":"Zg4sdAmW0oa0Gsx50oLcYGQdnbR"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"組成結(jié)構(gòu)","id":""}],"text":"","id":"Q2qyduGcyoGOuAxkbcycCbuBnlg"},{"type":"paragraph","children":[{"type":"text","text":"液晶電視機的組成原理，大體有4個主要功能模塊電源板，電視主板，邏輯板，背光模塊，以及屏線，遙控器，按鍵輸入和喇叭輸出。","id":""}],"text":"","id":"YqSOdSGksoKCkkxgjdpc8VC0nEd"},{"type":"image","attrs":{"height":547,"note":[{"type":"text","text":"組成結(jié)構(gòu)","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/d49597eb3f2f458fb1aacdb8bcdbef9c","width":600},"text":"","id":"KIuGduc4Yo64sGxgDHGcyS0Hnog"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"電源板","id":""}],"text":"","id":"NCcadCGASoIKKaxI1gYcygzZnoc"},{"type":"image","attrs":{"height":382,"note":[{"type":"text","text":"電源板","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/33c208a51667444093165fd7f535bdad","width":640},"text":"","id":"N8OodMuAWo6Y0kxgTEac2Ntdnic"},{"type":"paragraph","children":[{"type":"text","text":"顧名思義，電源板負責整臺電視的供電。功能好比人的心臟，給人全身輸送能量。如果電源板壞了，就像人的心臟停止跳動，電視機自然就不能工作了。","id":""}],"text":"","id":"E2y2dAoKqo22aoxkhhmcxKcinxb"},{"type":"paragraph","children":[{"type":"text","text":"很多黑屏，背光不亮，指示燈不亮，遙控按鍵不起作用等現(xiàn)象都是因為電源板故障引起。","id":""}],"text":"","id":"K6S2dK66Uos0mCx6PqTc7rRPnIe"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"電視主板","id":""}],"text":"","id":"Om6gd4siSo44U6xyplZcfDDQnzX"},{"type":"paragraph","children":[{"type":"text","text":"電視主板是整個電視機控制的核心，也可以說是電視的大腦。","id":""}],"text":"","id":"HQWQd2WKgoEWIExa0EecUNIln8f"},{"type":"paragraph","children":[{"type":"text","text":"如果電視主板出現(xiàn)問題，可能導(dǎo)致指示燈不亮、或者指示燈顏色異常、遙控按鍵無響應(yīng)、黑屏、花屏等現(xiàn)象。","id":""}],"text":"","id":"OyS4dCMsKoCkwSx8w6qcWrSFnCc"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"邏輯板","id":""}],"text":"","id":"BAA0dYS4ko8GaExOAlwcSMQzn3f"},{"type":"image","attrs":{"height":200,"note":[{"type":"text","text":"邏輯板","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6a2ec3b6487a474bb0572cd6b41a6a41","width":476},"text":"","id":"ZgksdK60koWCCuxANPMcX2Ijnuf"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"GKWadUmOWoQK6cxQbUoclY8cn9f"},{"type":"paragraph","children":[{"type":"text","text":"邏輯板也稱TCON板，是信號中轉(zhuǎn)站。負責將主板的LVDS信號轉(zhuǎn)換成屏能處理的TCON信號。","id":""}],"text":"","id":"AQKCd4EUoooEGwxwV6EcWW8EnVg"},{"type":"paragraph","children":[{"type":"text","text":"如果TCON壞了，可能導(dǎo)致畫面黑屏，花屏，條紋干擾，屏閃，屏保等異?，F(xiàn)象。","id":""}],"text":"","id":"Nwyud4k2moy8w0xMfDUcsxd2nYf"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"背光模塊","id":""}],"text":"","id":"W0iudm0eMosGogxEnR0cFf7unhh"},{"type":"image","attrs":{"height":376,"note":[{"type":"text","text":"背光模塊","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f0a58b74bfb149388085b7d3c065f517","width":640},"text":"","id":"DkCCdyq0eoGMsWxGg10cl1h3nue"},{"type":"paragraph","children":[{"type":"text","text":"背光模塊的功能是給電視機顯示提供背光光源。","id":""}],"text":"","id":"XgqgdA6eSoamscxGkTEcrEuhn7e"},{"type":"paragraph","children":[{"type":"text","text":"如果電視背光不亮，很有可能是背光模塊出現(xiàn)了問題。","id":""}],"text":"","id":"FEMsdQsKaoEuyGxMx62cer6vn8d"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"LVDS信號線","id":""}],"text":"","id":"KesmdsScsoMkAaxUZkacXFfanwf"},{"type":"image","attrs":{"height":174,"note":[{"type":"text","text":"LVDS信號線","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f2f5112c462f4d7689d15cca1b1d7274","width":288},"text":"","id":"IG2edW4gAoimeMx1qfDc7n8EnbS"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"QM0odQQqaoIgYkxmu1Nc6e2hn7g"},{"type":"paragraph","children":[{"type":"text","text":"屏線，又稱差分信號線。如果接口松動，接觸不良，很容易導(dǎo)致黑屏，雪花點干擾，花屏等異常現(xiàn)象。","id":""}],"text":"","id":"EcUMdCeuMoMgs8x2v7Nc6yronId"},{"type":"paragraph","children":[{"type":"text","text":"注意：4K電視，因為數(shù)據(jù)量大，LVDS信號線已無法滿足傳輸要求，一般都采用V-BY-ONE的信號線傳輸。","id":""}],"text":"","id":"HwyGdSIWkoKoiUx06WXcQbkUnOc"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"遙控接收頭","id":""}],"text":"","id":"D8OCduQagoGUkmxCK1hc1UlanHg"},{"type":"image","attrs":{"height":386,"note":[{"type":"text","text":"遙控接收頭","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/81b73b4097b34fa7bd7d91fc61b8ffbe","width":640},"text":"","id":"K2iYdKsC6oggeMxOInhcnIq1nCe"},{"type":"paragraph","children":[{"type":"text","text":"遙控接收頭，也稱IR，負責接收遙控器的紅外控制信號。如果按遙控器沒有反應(yīng)，可能是遙控接收頭出現(xiàn)問題。","id":""}],"text":"","id":"EUckd0E8woqg2ixQZxYcNcumn3f"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"按鍵板","id":""}],"text":"","id":"CeAEdImqSoAkwIxYFN6c7Mrpnfh"},{"type":"image","attrs":{"height":400,"note":[{"type":"text","text":"按鍵板","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/4b0ba99b7c2442769d79d4a9279d604f","width":640},"text":"","id":"YMCWdMQQ2oO2K6xcTq3cLUXTn9g"},{"type":"paragraph","children":[{"type":"text","text":"如果遙控器可以正常操作，但按鍵板不起作用，估計是按鍵板或者相關(guān)電路壞了。","id":""}],"text":"","id":"TaYyd4SY0oo8w8xIvaVcgwuincc"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"三合一板卡","id":""}],"text":"","id":"YYUEdw6o2o0scqxuECxcwD3lnbg"},{"type":"image","attrs":{"height":491,"note":[{"type":"text","text":"三合一板卡","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/7535a9c507344b82928b198c99420481","width":640},"text":"","id":"VO4QdQGoWogi4UxKOLZcgMWznrg"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"LeAydA80Ioo4GYxURGrcJawOnyg"},{"type":"paragraph","children":[{"type":"text","text":"將背光模塊，電源板和電視主板集合到一塊板卡上，俗稱三合一板卡。將背光模塊，電源板和電視主板集合到一塊板卡上，俗稱三合一板卡。","id":""}],"text":"","id":"YQIKdaEU0ooICyxMLricXBHZn4d"},{"type":"paragraph","children":[{"type":"text","text":"隨著產(chǎn)品的標準和規(guī)范化，電視模塊將越來越簡化。目前市面上的電視，里面的模塊基本都簡化成兩片電路了，一塊三合一主板加一片邏輯板。","id":""}],"text":"","id":"VOcUdisEwooGAgxI1Ktc7i3InEd"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"工作原理","id":""}],"text":"","id":"QSsGdMOgoo4acOxoH3TcxZQLnWh"},{"type":"image","attrs":{"height":326,"note":[{"type":"text","text":"工作原理","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/68aff4ee95924b829b046559d8011a66","width":560},"text":"","id":"PiiKdKEIWoSgoWxw1LIczFsxn5g"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"LySYdoqgAo2iSyxiqL8cXzGFncc"},{"type":"paragraph","children":[{"type":"text","text":"如上圖，紅色的箭頭是供電電路，藍色的箭頭是信號電路。","id":""}],"text":"","id":"AEcCdkeOAoYcgKxkYH9cVldUnSX"},{"type":"paragraph","children":[{"type":"text","text":"電源板負責將220V交流電壓轉(zhuǎn)換成各個模塊工作所需的直流電壓；","id":""}],"text":"","id":"MIssd0cCeosqOqxu4n0c1CEtnbf"},{"type":"paragraph","children":[{"type":"text","text":"電視主板負責處理按鍵信號，響應(yīng)遙控器信號；","id":""}],"text":"","id":"Cuy0duUmmoQ4C4xh7VecJdQpnIF"},{"type":"paragraph","children":[{"type":"text","text":"控制電源板開關(guān)，直接或間接控制背光模塊；","id":""}],"text":"","id":"Buysd8umuok2uWxQF5Zc6wbqnUe"},{"type":"paragraph","children":[{"type":"text","text":"接收各類視頻信號，圖像轉(zhuǎn)化成LVDS信號輸送給邏輯板；","id":""}],"text":"","id":"GS6Od4wKGoweqOxCUwQc7HRqnPe"},{"type":"paragraph","children":[{"type":"text","text":"聲音信號輸出到喇叭；","id":""}],"text":"","id":"GO08diuImociUExEdiFc5RHRnag"},{"type":"paragraph","children":[{"type":"text","text":"邏輯板主要功能是將電視主板輸出的LVDS信號轉(zhuǎn)換成液晶屏能處理的TCON信號；","id":""}],"text":"","id":"W20SdySYkoCGy4xQ7FCcNZKrn7c"},{"type":"paragraph","children":[{"type":"text","text":"背光模塊負責給背光燈條供電。","id":""}],"text":"","id":"HIEudaucuooyMoxCMydcBzEAnQn"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"維修常用工具","id":""}],"text":"","id":"PqYUdMemsoMW2YxWC6UcVbsxn7f"},{"type":"paragraph","children":[{"type":"text","text":"螺絲刀","id":""}],"text":"","id":"JIqSdkcOuoA4OwxQ1UAc84Vuntf"},{"type":"paragraph","children":[{"type":"text","text":"螺絲刀是工具，分手動或電動，用于旋擰（安裝）和旋松（除去）螺釘。","id":""}],"text":"","id":"Aokydu6Meo0C0YxcRXPcthghnrd"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/4b51b4fe86544c75ba4ea5bc9e54bf7d","width":1024},"text":"","id":"YiiEdMaw8oaIWyx8TbtcYPpLnGd"},{"type":"paragraph","children":[{"type":"text","text":"鑷子鉗","id":""}],"text":"","id":"WUIQdQUKWoiso4xwRErcTPeRnPe"},{"type":"paragraph","children":[{"type":"text","text":"夾持導(dǎo)線、元件及集成電路引腳等。","id":""}],"text":"","id":"ZokAduqK4o0Miixgl6vcbAVgn1f"},{"type":"image","attrs":{"height":681,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/16b3f92f4846467b820c96c3fe71c112","width":1022},"text":"","id":"VkO0d40cyowY22xO8AecwLVKnee"},{"type":"paragraph","children":[{"type":"text","text":"萬用表","id":""}],"text":"","id":"S0AQdUyocoQU2oxIVjQcZFzKnge"},{"type":"paragraph","children":[{"type":"text","text":"，萬用表又稱為復(fù)用表、多用表、三用表、繁用表等，是電力電子等部門不可缺少的測量儀表，一般以測量電壓、電流和電阻為主要目的。","id":""}],"text":"","id":"JgaCdWCQ4oI82ExOKAtcS8SFn6b"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8878cbc13def408e92616a5d5c628006","width":1024},"text":"","id":"Xs4qdYIIIowUO8xycjHcP1Henbd"},{"type":"paragraph","children":[{"type":"text","text":"示波器","id":""}],"text":"","id":"QYM2dQySeomqkGxQh56cEy5Gn9e"},{"type":"paragraph","children":[{"type":"text","text":"示波器是一種用途十分廣泛的電子測量儀器。它能把肉眼看不見的電信號變換成看得見的圖像，便于人們研究各種電現(xiàn)象的變化過程。","id":""}],"text":"","id":"GqImdCkCqomwYKxSQzxczW75nTb"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/3977407aa4cb4be4b12c7ebf713e417d","width":1024},"text":"","id":"PswqdGKCyoYOosxCy92cwPjtnqg"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"Tm6edSUWYoOQYexsBL6cOnkDn1e"},{"type":"paragraph","children":[{"type":"text","text":"溫度可調(diào)熱風槍","id":""}],"text":"","id":"VSwodUeEeoyOCCxs5E1cgSNHnbd"},{"type":"paragraph","children":[{"type":"text","text":"熱風槍主要是利用發(fā)熱電阻絲的槍芯吹出的熱風來對元件進行焊接與摘取元件的工具。","id":""}],"text":"","id":"K0wadmiIUoQMI0xyi9scB2Ggnrc"},{"type":"image","attrs":{"height":679,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/b7c81689038147c983fd273fbb410d08","width":1018},"text":"","id":"JugQd26wgoGiaoxs3BzcIydynId"},{"type":"paragraph","children":[{"type":"text","text":"電烙鐵","id":""}],"text":"","id":"JqQwdAOYQoOgyuxC4sJc97s9nkc"},{"type":"paragraph","children":[{"type":"text","text":"電烙鐵是電子制作和電器維修的必備工具，主要用途是焊接元件及導(dǎo)線。","id":""}],"text":"","id":"FYsud4G6IoO8cSx6ICZcctMXnyh"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/d4ce7a8a760b4fefbcf19b2bd83fcb22","width":1024},"text":"","id":"Zciid2CQooUICwxmMQMchCNMnof"},{"type":"paragraph","children":[{"type":"text","text":"錫絲","id":""}],"text":"","id":"I0IsduGI0oi6G2xegctcDyNsn3e"},{"type":"paragraph","children":[{"type":"text","text":"錫絲的特質(zhì)是具有一定的長度與直徑的錫合金絲，在電子原器件的焊接中可與電烙鐵或激光配合使用。","id":""}],"text":"","id":"NYEkdg8qmouQwcxsFZCcKZjXn7e"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"維修常用工具","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/2f401202f6df4376b8b88702cd7c245a","width":1024},"text":"","id":"Ro2Ud0Gy2oGyg4x2pDCcVClknWb"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"JCK6doqCwoceMOxGiPwchFLrnRT"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"維修技巧","id":""}],"text":"","id":"WWa0dgaMMoI4esxaDjqcwHWQnfb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"基本維修的方法","id":""}],"text":"","id":"DUM0dKGkkogkGoxewKgcNQQnnRc"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"直觀法","id":""}],"text":"","id":"ImWadgS2aoko62xcRsXc5Bb8npS"},{"type":"paragraph","children":[{"type":"text","text":"肉眼觀察燒黑的地方，看有無連接線松動及元器件擊穿的情況。","id":""}],"text":"","id":"TsAYd4M02oCKOqxcjK3cA1Udnve"},{"type":"image","attrs":{"height":512,"note":[{"type":"text","text":"直觀法","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/eca6e30dd9ac4659bb69af6ca9d4a5ac","width":768},"text":"","id":"Da4idSkAsoA2mAxa3xicwxtBndb"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"觸摸法","id":""}],"text":"","id":"OQGsd8QiqoeYKcx8LzdcseNDnce"},{"type":"paragraph","children":[{"type":"text","text":"用手觸摸關(guān)鍵部件，觀察供電部分發(fā)熱情況(數(shù)字板)，特別是對老化幾小時后出現(xiàn)的軟故障情況比較實用。","id":""}],"text":"","id":"UiisdwKIoooCmWxi4gfcJXmlnbd"},{"type":"image","attrs":{"height":800,"note":[{"type":"text","text":"觸摸法","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/70e987bee28e461aabab23337cc2c5c6","width":1200},"text":"","id":"I8QmdwIICoOkeOxiiidcFLTCnFf"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"問題法","id":""}],"text":"","id":"MW6kdMwyQoKoOExCIqLcOWOsn3d"},{"type":"paragraph","children":[{"type":"text","text":"了解故障出現(xiàn)的具體狀態(tài)(比如雷擊、打火、冒煙、積水及以及人為操作等)。","id":""}],"text":"","id":"Bg26d0suuoia2kxs913chW3Snzc"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"測量法","id":""}],"text":"","id":"UisUd4WUooeE8sxCSXRcIje6nch"},{"type":"paragraph","children":[{"type":"text","text":"使用萬用表、示波器測量(有些情況可用指針式萬用表交流來代替示波器測量一些普通的信號)。","id":""}],"text":"","id":"FG0GdCAYsoMS8qxeulPc1OUPnSf"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"測量法","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/0c4cd5fba2f4493e9dc90232236e2d7d","width":1024},"text":"","id":"H4CIdgMskoegMcxQTcfcX1rlnwe"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"代換法","id":""}],"text":"","id":"DKgwdyGmiou4qWxwPZQcGlMPn3f"},{"type":"paragraph","children":[{"type":"text","text":"有條件的情況下，可以代換電源板，數(shù)字板，高頻板，背光板，屏，LVDS數(shù)據(jù)線，軟件等，這種方法維修快。","id":""}],"text":"","id":"Jwu8dsc60oiSM6xKSDGciY7dnrh"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"排除法","id":""}],"text":"","id":"OMYCd0CGaoKqkMx2nPGc99ZpnLe"},{"type":"paragraph","children":[{"type":"text","text":"縮小檢修范圍，準確判斷故障位置(如信號源部分、信號通道部分)。","id":""}],"text":"","id":"XqaOdCuYWoUQAMx6Pg6cCWzkn8d"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"邏輯檢修法","id":""}],"text":"","id":"BG2mdi66GoaKW6xcZV7c0EyMned"},{"type":"paragraph","children":[{"type":"text","text":"該方法要求對所修板件的信號流程、電源邏輯關(guān)系非常熟悉，可以確定維修的順序：是先從后級向前級檢修，還是單一通道向公共通道檢修等等。","id":""}],"text":"","id":"Cokud4O2qoUuouxa4Ubc5sjRnuf"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"滿足法","id":""}],"text":"","id":"IGs6dCqQ2oQ00kxGvWKcnAObnRV"},{"type":"paragraph","children":[{"type":"text","text":"先大體確定故障部位后，再檢修部分電路的工作條件是否滿足(特殊情況下可人為制造工作條件)。","id":""}],"text":"","id":"V06YdMuwWoyaGQxszCvcTGGuncf"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"對比法","id":""}],"text":"","id":"CKw4d6Qgeo0gwoxkp5pcBtQBnGb"},{"type":"paragraph","children":[{"type":"text","text":"條件允許的情況下，可以對比好的板件進行檢修，也可以對比同一板件上相同的電路(對稱電路)來進行檢修。","id":""}],"text":"","id":"Ku4ydaGiooyQoGx6xBPcyrdvn3b"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"先軟件后硬件","id":""}],"text":"","id":"C6eOdwQu2okcSix6QYGcdHa5nnh"},{"type":"paragraph","children":[{"type":"text","text":"軟件涉及的故障范圍廣，但是需要檢修的范圍小，對于一些軟故障，建議先升級軟件。","id":""}],"text":"","id":"TWw4dMEiQoW2AkxSG5vcacnxnId"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"初步檢修流程","id":""}],"text":"","id":"OgYidI6KWoGk6Cx8gO4cu8cgnAc"},{"type":"image","attrs":{"height":696,"note":[{"type":"text","text":"初步檢修流程","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/0e2cbe3f472a42f688eec69e25fecdc6","width":1024},"text":"","id":"Za6kd8yo0oA68qxAZbXcgu39nZf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"維修口訣","id":""}],"text":"","id":"QK2sdCQgiouQMIxUrDQccHbjnxe"},{"type":"paragraph","children":[{"type":"text","text":"液晶維修并不難，工作原理記心間；","id":""}],"text":"","id":"RMEcdw4qgoImGsxKwkLcLf4QnMb"},{"type":"paragraph","children":[{"type":"text","text":"電壓來自電源板，亮度來自背光源；","id":""}],"text":"","id":"SSkkduO8YoekY6xC8n3cwsoGnkd"},{"type":"paragraph","children":[{"type":"text","text":"信號處理機芯板，顯示分配控制板；","id":""}],"text":"","id":"OEAydai2UoqcQ8xktpWc0AyXnFe"},{"type":"paragraph","children":[{"type":"text","text":"5V供電最勤勞，一年四季歇不了；","id":""}],"text":"","id":"YuWadgeMYoSO8uxIN5icN7uInLd"},{"type":"paragraph","children":[{"type":"text","text":"12V供給機芯板，中放功放向它看；","id":""}],"text":"","id":"SoYAdy0S0oigGSxy0q0cSwYgnoh"},{"type":"paragraph","children":[{"type":"text","text":"24V送到背光板，無它屏幕缺光源；","id":""}],"text":"","id":"GEC8d0kKUoaqc6xmuFScMjUsnJh"},{"type":"paragraph","children":[{"type":"text","text":"機芯板子是領(lǐng)導(dǎo)，開關(guān)信號向它要；","id":""}],"text":"","id":"QgiudCKWuoA0ccxAtjjcJDSwnze"},{"type":"paragraph","children":[{"type":"text","text":"電源模塊背光板，電平高開（機）低關(guān)；","id":""}],"text":"","id":"PEe2d4SWooee2cxAddQchfRQn2d"},{"type":"paragraph","children":[{"type":"text","text":"PWM脈沖很重要，少了亮度提不高；","id":""}],"text":"","id":"FCkadcCw4oOca4xoLn3cSd9bnDd"},{"type":"paragraph","children":[{"type":"text","text":"LVDS線要求高，變質(zhì)松動有干擾；","id":""}],"text":"","id":"QMgkdAEQko4k0oxaMh5citB7nWe"},{"type":"paragraph","children":[{"type":"text","text":"液晶電視不普通，程序經(jīng)常鬧罷工；","id":""}],"text":"","id":"KuOUdO4Ueo4WeCxWUNgcZnqjnCf"},{"type":"paragraph","children":[{"type":"text","text":"三天兩天發(fā)神經(jīng)，需要復(fù)位來擺平；","id":""}],"text":"","id":"IYKMdmk8Ao6McCxY9AKcveD1nOd"},{"type":"paragraph","children":[{"type":"text","text":"液晶屏幕很脆弱，要維修時細（心）操作","id":""}],"text":"","id":"N20edYIGSoeU0mxSLz2cZd8fnJx"},{"type":"paragraph","children":[{"type":"text","text":"平板維修費用高，學(xué)好技術(shù)很辛勞；","id":""}],"text":"","id":"SUc0dkSu2ocAQ2xSErXcV4MTnLa"},{"type":"paragraph","children":[{"type":"text","text":"賺錢固然很重要，安全二字記心牢。","id":""}],"text":"","id":"LcOidycYUoKeS6xq08bcrHRtnzh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"常見故障分析","id":""}],"text":"","id":"GcQMduk84ooUUGxu8DwcxEA0nPc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"顯示器整機無電","id":""}],"text":"","id":"C0Egds8a0oC0ikxC4HYcame9nKf"},{"type":"paragraph","children":[{"type":"text","text":"1、電源故障","id":""}],"text":"","id":"AWgsdo628oMIKaxs7lfcQigfnJg"},{"type":"paragraph","children":[{"type":"text","text":"這是一個應(yīng)該說是非常簡單的故障，一般的液晶顯示器分機內(nèi)電源和機外電源兩種，機外的常見一些。不論那種電源，易損的一般是一些小元件，象保險管、整流橋、300V濾波電容、電源開關(guān)管、電源管理IC、整流輸出二極管、濾波電容等。這些常用的芯片在專業(yè)液晶配件店里都能買到。","id":""}],"text":"","id":"Hg40di4uGoEwkAx0yGNcoySondc"},{"type":"image","attrs":{"height":644,"note":[{"type":"text","text":"顯示器整機無電","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/e171513b622b49df9723c2e41328c84e","width":597},"text":"","id":"RmKUdoes6oIUiYxUZqHcagDUnxh"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"YkAAdyaOsoyuwYxmpPpceRxinKq"},{"type":"paragraph","children":[{"type":"text","text":"2、驅(qū)動板故障","id":""}],"text":"","id":"IEUOd66KgoGoI8xIHemcXA1OnWe"},{"type":"paragraph","children":[{"type":"text","text":"驅(qū)動板燒保險或者是穩(wěn)壓芯片出現(xiàn)故障，有部分機器是把開關(guān)電源內(nèi)置，輸出兩組電源，其中一組是5V，供信號處理用，另外一組是12V提供高壓板點背光用，如果開關(guān)電源部分電路出現(xiàn)了故障會有可能導(dǎo)致兩組電源均沒輸出先查12V電壓正常否，跟著查5V電壓正常否，因為A/D驅(qū)動板的MCU芯片的工作電壓是5V，所以查找開不了機的故障時，先用萬用表測量5V電壓，如果沒有5V電壓或者5V電壓變得很低，那么一種可能是電源電路輸入級出現(xiàn)了問題，也就是說12V轉(zhuǎn)換到5V的電源部分出了問題，這種故障很常見檢查5端穩(wěn)壓塊(常見型號8050SD-LM2596-AIC15-01等)。","id":""}],"text":"","id":"SWQIdq8q0oUiMUx0Emkc8b2VnNd"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"顯示器整機無電","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f16f5f31cd6c494ab9713d7fab80f1aa","width":1024},"text":"","id":"AcO2d6u2KoGouYxm1uDcTyaHnGD"},{"type":"paragraph","children":[{"type":"text","text":"另一種可能就是5V的負載加重了，把5V電壓拉得很低，換一種說法就是說，后級的信號處理電路出了問題，有部分電路損壞，引起負載加重，把5V電壓拉得很低，逐一排查后級出現(xiàn)問題的元件，替換掉出現(xiàn)故障的元件后，5V能恢復(fù)正常，故障一般就此解決，也經(jīng)常遇到5V電壓恢復(fù)正常后還不能正常開機的，這種情況也有多種原因，一方面是MCU的程序被沖掉可能會導(dǎo)致不開機。還有就是MCU本身損壞，比如說MCU的I/O口損壞，使MCU掃描不了按鍵，遇到這種由MCU引起的故障，找硬件的問題是沒有用的，就算你換了MCU也解決不了問題，因為MCU是需要編程和寫碼的，在沒辦法找到原廠的AD驅(qū)動板替換的情況下，我們只能用通用A/D驅(qū)動板代換如151D或161B等。","id":""}],"text":"","id":"WEKKdMm82oO0AOxmijgcGJ82nCg"},{"type":"image","attrs":{"height":718,"note":[{"type":"text","text":"顯示器整機無電","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6877eef394f0460391549cc7950ff2b9","width":1077},"text":"","id":"TemOdY8o8ooCscxC4v0cctYNnJe"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"顯示屏黑屏，無背光，電源燈綠燈常亮","id":""}],"text":"","id":"ScwmdYC2soiC0Uxy0AScaYgon7c"},{"type":"paragraph","children":[{"type":"text","text":"斜視液晶屏有顯示圖像，是因為MCU問題造成沒有輸出開關(guān)控制電壓，可以直接提取3端穩(wěn)壓塊的。","id":""}],"text":"","id":"DcCAd0sWyoUm0WxzWWcclrOVnIg"},{"type":"paragraph","children":[{"type":"text","text":"(AIC1084)3.3V代替，修理高壓板的思路(電源保險絲--開關(guān)控制管--電源管理IC--推挽發(fā)大管--電源開關(guān)管--DA轉(zhuǎn)換電路(儲能電感整流管)--LC升壓電路(升壓變壓器、升壓電容)--耦合電容--燈管。","id":""}],"text":"","id":"GUWGd8kEoo68ewx80Iqc5gxsntc"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"顯示屏黑屏，無背光，電源燈綠燈常亮","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/28d1d08e0d744012a98d93b2b825562d","width":1024},"text":"","id":"MsYyd8kKIoYUAsxWIPDcYNDFnKb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"屏幕亮線，亮帶或者是暗線","id":""}],"text":"","id":"EOYgdaWOwoggwoxohgqc5uwvn5b"},{"type":"paragraph","children":[{"type":"text","text":"這種問題，一般是液晶屏的故障。","id":""}],"text":"","id":"J04udMScEogEgixag7UcHcR4nyh"},{"type":"paragraph","children":[{"type":"text","text":"亮線故障一般是連接液晶屏本體的排線出了問題或者某行和列的驅(qū)動IC損壞","id":""}],"text":"","id":"AcEAdaQkIoUY4OxY585cDxs6n4d"},{"type":"paragraph","children":[{"type":"text","text":"暗線一般是屏的本體有漏電，或者TAB柔性板連線開路以上兩種問題基本上就是給機器判了死刑了，沒有維修價值的，因為一塊屏的價格太高了。(廣州有專門更換碼片的，收費極高，返修率也高)。","id":""}],"text":"","id":"HWy8dsS2IoyCmqx2xcmc66POnFg"},{"type":"image","attrs":{"height":2000,"note":[{"type":"text","text":"屏幕亮線，亮帶或者是暗線","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f8d9eb1e799a4641b7f7ba71179f73c8","width":3000},"text":"","id":"KY0Ad8EKooqioaxkZVwcJ31Unxf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"花屏或者是白屏","id":""}],"text":"","id":"OA26d4yEeomOIAxOyyFc1I1anxg"},{"type":"paragraph","children":[{"type":"text","text":"這種問題一般是屏的驅(qū)動電壓出了問題，先換驅(qū)動板和驅(qū)屏線試驗，若不行檢查屏背板供電電路。","id":""}],"text":"","id":"JQiIdcoY0oyyKExqonxcIxPVnie"},{"type":"paragraph","children":[{"type":"text","text":"維修思路：驅(qū)動板5V轉(zhuǎn)3.3V的穩(wěn)壓塊(AIC1084)是否有供電輸出--屏體驅(qū)動板保險絲(F)-3.3V--DC轉(zhuǎn)換電路--負壓形成IC(-7V)--行列驅(qū)動IC。","id":""}],"text":"","id":"BwSgdaAkgoEwGuxQt1GcFIwRnde"},{"type":"paragraph","children":[{"type":"text","text":"AAT1101AM150XN05屏電源管理芯片，損壞后表現(xiàn)為白屏開機圖像暗淡等。","id":""}],"text":"","id":"W8YwdySA4ogUMCxWAF3chxuOnBd"},{"type":"paragraph","children":[{"type":"text","text":"AAT1164M170EG01新款屏通病，主要用在明基FP71G+液晶顯示器上面。用一段時間會白屏、關(guān)機在開用一段時間又出現(xiàn)白屏。本芯片為液晶屏高壓產(chǎn)生及管理芯片、明基液晶顯示器常壞、故障為：白屏。","id":""}],"text":"","id":"F6UcdsIaYoigw4xhXQYcSTbtnA4"},{"type":"image","attrs":{"height":720,"note":[{"type":"text","text":"花屏或者是白屏","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/0382d695e62249e48ce88ddd45e7eab2","width":1080},"text":"","id":"PECGdywYoouQEqxcjYVcjWO4nsg"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"偏色故障","id":""}],"text":"","id":"WUakdWow4oC0AYx8TxNcdEFKn2c"},{"type":"paragraph","children":[{"type":"text","text":"一般可以進入工廠調(diào)整模式進行調(diào)整。","id":""}],"text":"","id":"KAwwd8GmcoMgQoxJOl6cUuWingX"},{"type":"paragraph","children":[{"type":"text","text":"維修思路：更換屏線和轉(zhuǎn)接板--重寫驅(qū)動程序--驅(qū)動板壞(不常見)--屏背板的控制IC壞(不常見)--拔掉屏線觀察背光顏色(","id":""},{"type":"text","text":"背光偏色","id":""},{"type":"text","text":"為燈管老化)--換燈管。","id":""}],"text":"","id":"OE2EdwMqAo22G0x2hsKcJpSYnYf"},{"type":"image","attrs":{"height":595,"note":[{"type":"text","text":"偏色故障","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/682812f3a52745ab9015c2bdb8a8ffca","width":892},"text":"","id":"R2aAd6qASoCwSqx2DfncS7VlnFb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"字符虛或拖尾","id":""}],"text":"","id":"QS0Ydw8IkomMO0xQDMicNxRVnid"},{"type":"paragraph","children":[{"type":"text","text":"維修思路：檢查VGA信號線，重點看RGB三色線的地線是否連接正常--更換屏線或轉(zhuǎn)接板--重寫驅(qū)動程序--換驅(qū)動板--LCD屏背板信號接口 IC壞--LCD屏背板對比度電位器調(diào)整--LCD屏導(dǎo)光板錯位--偏光片錯位。","id":""}],"text":"","id":"D0KUdse84ouMuQxGGovcCqUWnHf"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"字符虛或拖尾","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/49e51c98340e47e8b7bfb8076eb3684a","width":1024},"text":"","id":"Dyu2dmkEsoSiimxyOIScRdQ8nHh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"LCD屏幕內(nèi)部有污點","id":""}],"text":"","id":"WIyKdkuCuoI2MqxSkyZcRKEcnMg"},{"type":"paragraph","children":[{"type":"text","text":"維修思路：擦拭或更換換保護膜--拆開屏體清洗外層偏光片和有機玻璃(用棉球純凈水處理)--風筒吹干。","id":""}],"text":"","id":"Ygi2dkiY4oO6sExAXsycPzo6nSc"},{"type":"image","attrs":{"height":746,"note":[{"type":"text","text":"LCD屏幕內(nèi)部有污點","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/3411022d6b21474aa77b1f139bcb0fcf","width":1119},"text":"","id":"EAUGdQi4yoaaY4xEFqIcBxQrnKd"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"LCD屏漏光或光線不均","id":""}],"text":"","id":"O4KWdaCcio8gqGxuGtWcl6ktnVc"},{"type":"paragraph","children":[{"type":"text","text":"維修思路:重新安裝燈管--調(diào)整導(dǎo)光板。","id":""}],"text":"","id":"EgYMdOAgOosEU8xu8BJclmLjnqg"},{"type":"image","attrs":{"height":575,"note":[{"type":"text","text":"LCD屏漏光或光線不均","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/4f1fae90dd7f4885875a98b12d344c37","width":862},"text":"","id":"KaA2dmCEQocMuwxaEhlcgUhwnKd"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"LCD屏亮點","id":""}],"text":"","id":"RQE0dwIycoAK2ax2hmVc4DIWn2c"},{"type":"paragraph","children":[{"type":"text","text":"一個或二個大的亮點，可以嘗試輕輕用指尖壓亮點，可消失,說明多為此像素的開關(guān)管和電極虛連小的黑點和灰點有可能是內(nèi)部導(dǎo)光板或偏光片有灰塵造成可清洗處理。","id":""}],"text":"","id":"BCQUdoykSoGQcAxh5gQcr7XenxI"},{"type":"image","attrs":{"height":720,"note":[{"type":"text","text":"LCD屏亮點","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/39e02217bd5d47d88ba8642545866e1b","width":1080},"text":"","id":"CEgKd8sgWosqEmxG8gBcswkynme"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"LCD屏亮度低","id":""}],"text":"","id":"GOQmdYWuioG6KExmKzJcaD6anVh"},{"type":"paragraph","children":[{"type":"text","text":"檢查高壓板ADJ亮度調(diào)節(jié)電路--換燈管--換高壓板---調(diào)整或更換導(dǎo)光板。","id":""}],"text":"","id":"PIgCdkW6eoKeEAxA1K6cYRjknzh"},{"type":"image","attrs":{"height":720,"note":[{"type":"text","text":"LCD屏亮度低","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/d2f309cae5554291ad52f0a37e78fa36","width":1080},"text":"","id":"PMYMdWGmqoKiQMxUzJ5cZG7bnBf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"錯誤提示超出頻率范圍","id":""}],"text":"","id":"UKkGdaY0UoYoeKx0AVLcATRRnTb"},{"type":"paragraph","children":[{"type":"text","text":"檢查信號線--重寫MCU驅(qū)動程序--更換EPROM--重寫EPROM程序--換驅(qū)動板。","id":""}],"text":"","id":"MAEMd8Mywom02Ox6f52cPjNondb"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"錯誤提示超出頻率范圍","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/ddcfcfe2eef44b059d28fdf4aff6f628","width":1024},"text":"","id":"QoYidAMsMo2gk4xye2Bchj7nn0f"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"通電后不按開關(guān)按鍵即白屏，出現(xiàn)背光按鍵后圖像可正常顯示","id":""}],"text":"","id":"OqYsdU2e6oCMuuxGCkRcnqnpnne"},{"type":"paragraph","children":[{"type":"text","text":"高壓板接口的開關(guān)信號和ADJ信號反接造成部分屬于驅(qū)動板MCU的開關(guān)信號輸出不正常，可以重寫MCU程序修復(fù)--換MCU。","id":""}],"text":"","id":"UOw0dACO4oKkYIxeQAFcx3sfnVf"},{"type":"paragraph","children":[{"type":"text","text":"補充一點，對于燈管老化的屏更換時要搞清燈管的尺寸，因為盡管屏幕尺寸一樣，但是燈管長度與粗細略有差異，在找不到相同尺寸燈管的時候，如果能用短燈則好，如果不能使用，稍長的的燈管用手術(shù)刀小心切除屏框，并用熱縮管做好絕緣。","id":""}],"text":"","id":"UyU8dEUCaoUWygxc98xcWNPknee"},{"type":"image","attrs":{"height":483,"note":[{"type":"text","text":"通電后不按開關(guān)按鍵即白屏，出現(xiàn)背光按鍵后圖像可正常顯示","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/e69eef55771b48e7bbf6ebcdc5b0165c","width":725},"text":"","id":"FkEQdQikyouEcMx2xS3chyPon8d"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"注意事項","id":""}],"text":"","id":"GAsmd4agGouIk2x43LCc4WoTnRg"},{"type":"paragraph","children":[{"type":"text","text":"電視機是有電高壓的一種電器，維修時有關(guān)的安全問題一定要注意。","id":""}],"text":"","id":"YCaIdiMsSogi28xUdokcdns6nng"},{"type":"paragraph","children":[{"type":"text","text":"1、打開機殼：要注意不能用蠻力打開機殼，如果太緊打不開，一定是還有螺釘或卡扣沒有松開，要再仔細找找；拉開機殼時有的電視機電路板與機殼之間會有電線相連，要注意不要拉壞，比較好先折下機殼上固定的電路板；拉開機殼時要拿穩(wěn)機殼，不要脫手掉下，否則容易砸到顯像管管徑，一旦砸斷可就麻煩了。","id":""}],"text":"","id":"RG2KdeSkco0eAKxIN1TcdXBFneg"},{"type":"image","attrs":{"height":888,"note":[{"type":"text","text":"注意事項","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/3541dbd8ad7a44cab04154722ed2ea1b","width":1332},"text":"","id":"HcUGdoY4GoEOYxxSOaVcjAjbnio"},{"type":"paragraph","children":[{"type":"text","text":"2、要注意電視機的“熱地”：有的電視機的電路板的地是“熱地”，就是與市電沒有隔離，如果恰巧電視機的電源插頭又將未隔離的電視機的“地”端插到市電的“火”線上，那么維修時如果你不小心碰到電視機的某個接“地”的部分，就有觸電的危險。一方面觸電本身很危險，另一方面人在觸電時身體會發(fā)生不由自主的痙攣，一旦把電視機拉到地上，就又出大麻煩了。解決這個問題比較好是用隔離變壓器，如果沒有，比較好在電視機通電時能調(diào)整好插頭方向，使電視機的“地”接到市電的“零”線上，這樣可以使電視機比較容易碰到的地方不“電”人，但是電視機里還是有與“火”線相連的強電的，仍然要小心。","id":""}],"text":"","id":"YEMOdOAAwomg86xkPm3cBlyqnEe"},{"type":"image","attrs":{"height":682,"note":[{"type":"text","text":"注意事項","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/e970d754d0ab4531b80dbfe870179d92","width":1024},"text":"","id":"SeQOdeAgUoYeucxXA1NcWhdHniE"},{"type":"paragraph","children":[{"type":"text","text":"3、要注意電視機內(nèi)的高壓：在更換行輸出變壓器的時候，一定要用萬用表筆或其它導(dǎo)線將顯像管高壓帽下的高壓泄放干凈，否則在摘下高壓連線時會受到高壓電擊，同樣比較危險。","id":""}],"text":"","id":"TE2WdG8MgoUkOUxUDBNcZVgnnLV"},{"type":"image","attrs":{"height":683,"note":[{"type":"text","text":"注意事項","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/3d725834cf604f28a031e3d43eccc47f","width":1024},"text":"","id":"KeMGdIuYioCEyGxWMP9c3GeTnqh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"如何保養(yǎng)","id":""}],"text":"","id":"Z6QEdMcCuoamSqxUh4rcvQvEnSe"},{"type":"paragraph","children":[{"type":"text","text":"1、保持干燥","id":""}],"text":"","id":"Uq6qdkaMyoi0AgxobSVcuh03nhc"},{"type":"paragraph","children":[{"type":"text","text":"放置的中央，環(huán)境要保持干燥并遠離化學(xué)藥品。假如放置環(huán)境濕度很大，電器內(nèi)部就會結(jié)露，容易形成漏電、短路等。平常使用的發(fā)膠、滅蚊劑等都是高揮發(fā)性化學(xué)品，也會對液晶顯現(xiàn)屏形成損傷。","id":""}],"text":"","id":"SQkMdwWcSoSIqmxCen9cYGrQnTg"},{"type":"paragraph","children":[{"type":"text","text":"2、亮度調(diào)低","id":""}],"text":"","id":"GmA2dmAcQoIgS6xcTwycWgUXn8g"},{"type":"paragraph","children":[{"type":"text","text":"日常使用，盡量防止長時間顯現(xiàn)同一張畫面。長時間工作容易惹起內(nèi)部老化或燒壞，特別糟糕的是長時間內(nèi)顯現(xiàn)同一畫面，可能會招致某些像素過熱，形成內(nèi)部產(chǎn)生壞點。而這種損壞不能修復(fù)。因而不用時應(yīng)該關(guān)閉顯現(xiàn)屏或選擇屏幕保護程序，或者把顯現(xiàn)屏亮度調(diào)低點。","id":""}],"text":"","id":"SeyYdg6moo2qSwxAdYKchuc0nRb"},{"type":"paragraph","children":[{"type":"text","text":"3、不能頻繁清洗","id":""}],"text":"","id":"N848dWgAmomgIOxk7BLcs9wcnsd"},{"type":"paragraph","children":[{"type":"text","text":"液晶顯現(xiàn)屏不能頻繁清洗。正確的清潔辦法是拿一塊沾有少許玻璃清潔劑的屏幕擦布，輕力把污跡擦去。注意不要讓清潔劑流到屏幕、屏框接口中，以免出現(xiàn)短路。也不要用硬質(zhì)毛巾擦洗，以免刮花屏幕。還要定時定量擦洗。","id":""}],"text":"","id":"HcMadkiiooWOkcxKaNackUibnKe"},{"type":"paragraph","children":[{"type":"text","text":"4、制止壞習(xí)氣","id":""}],"text":"","id":"UquIdAgkYoM22axczmCckeQ6nzg"},{"type":"paragraph","children":[{"type":"text","text":"杜絕使用壞習(xí)氣。不要用手對屏幕指指點點。此外變壓器電壓很高，不要在帶電的狀況下翻開屏的后蓋。","id":""}],"text":"","id":"IEuGdMIkUo68QoxmAQdcM5DWnbc"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"I8mydKKoWoei8exM3hYcwT4BnJc"}]%3C%2Fhowto_content%3E

5. 尼康z6ii拍視頻需要外置麥克風嗎

我們平時用的尼康z6ii的機身材質(zhì)是鎂合金。

尼康Z6 II是一款綜合性能強大的機器，尼康 Z6 II不僅防抖性能強大，機身是鎂合金的，具有防塵防水性能，而且尼康 Z6 II自動對焦性能也很強，視頻拍攝性能也不錯，可以全畫幅拍攝4K/30P視頻，不過它的4K/60P視頻拍攝是經(jīng)過1.5倍裁剪的，這就有些不行了，這說明它的影像處理器稍微有些弱，處理不了4K/60P全畫幅采樣的視頻流。

6. 尼康z6ii拍視頻怎么減銳度

一、天氣有關(guān)

　　二、曝光不足

　　三、拍攝時選逆光也有關(guān)(順光拍天空會藍些，逆光拍會灰些)

　　四、鏡頭成像素質(zhì)較差(色差明顯)。

　　五、大家發(fā)的大多數(shù)照片都后期處理過。

　　只要注意以上幾點，另外還可以在D90相機設(shè)置的“照片風格”里調(diào)節(jié)銳度、對比度、飽和度的設(shè)置最后通過后期處理可以改善照片發(fā)灰的境況發(fā)生。

7. 尼康z6ii拍視頻能光圈優(yōu)先嗎

非常合適，Z 6機身+尼克爾 Z 24-200f /4-6.3 vr鏡頭的售價為 RMB 17300元，套裝相機正式銷售時間為2020年6月26日。

鏡頭的特點是輕巧緊湊，能適應(yīng)多種拍攝環(huán)境，輕便易用。在覆蓋24-200mm焦距的寬視角中，力求在緊湊、輕巧中達到寬變焦范圍之間的拍攝平衡。

在發(fā)揮Z卡口系統(tǒng)優(yōu)勢中，570克輕量的鏡身，能適合多場景，旅拍的靈活性。

來自尼康官網(wǎng)消息，該鏡頭“得益于Z卡口系統(tǒng)的大直徑和短法蘭距，盡管結(jié)構(gòu)緊湊，但后部鏡片的尺寸卻可以做得很大，并具有良好的光學(xué)性能。即使在最大光圈下也能在整個畫面中呈現(xiàn)高分辨率”。

搭載高效的VR減震功能，可提供相當于快門速度提升約5檔的減震效果。即使使用長焦端，在拍攝夜景以及在昏暗的室內(nèi)中拍攝，提高了出片率。

尼康 Z 24-200mm f/4-6.3 VR 鏡頭，采用了2枚低色散（ED )玻璃鏡片，2枚非球面鏡片，可提供滲色少的銳利影像，同時，采用了抗反射高清的（ARNEO )涂層，幫助獲得清晰的影像，也減少了鬼影和眩光的產(chǎn)生。