199979A569-2-A12.456810139579A9110-2 *12.4689200079A569-2-B12.456810206179A990-2 *12.468910138579A569-2-C12.456810158679A995-1-A *12.468910289579A569-3-B12.456810230179A995-1-AH *12.468910101179A569-5...

[閱讀全文]

812347101018351245.367810439L1099AZ12678.3452987350033004012.3458110139L2013AZ123.578107935003330010125.468.91055739L2015AZ123456.78918793500333004012.34.58999539L2016AZ123456.789275353-0032-3316 *12....

[閱讀全文]

240519.70067.001 *13.456777243672513.56910260919.70068.00112.3491835243672713.456222419.70069.001 *124.35.8910135924368711234.567302819.70069.001 *14.235.891018282436901156.3894532385000130513.4569101...

[閱讀全文]

21840003-15B *12.349.5618111501-0261-01413.45691020620003-16A *123.468910771501-0261-11013.45691025570003-25A12345.68910319151460141256.34.891022480003-30A *12.3891015815-2014-0301124.3510.68922110003...

[閱讀全文]

810TFB-6604 *12345.689101204TLF86601B12.4571774TFB-674C12.45691088TLF86604B12.457595TFB-690112345.689101785TLF8660813.568.1011615TFB-7002A *12345.689103014TLF86610B12.4572922TFB-7003 *12345.689102953T...

[閱讀全文]

162KJF-9410B18.23.9101767LCE CF0287110.28.456282KJF-9429B124.38.5659LCE CF029212.3456891202KJF-9434D1245.3689128LCE CF029615.349387KJF-9438A124.3568422LCE CF03131345.68910946KJF-9451B13.56101766LCE CF...

[閱讀全文]

1175LCE CF121612345.789973LCE CF1517 *12.35.4689102817LCE CF121814.27.3589103029LCE CF1534 12.3451980LCE CF1227 *123456.89101238LCE CF153512.45610.891106LCE CF1232 *12.45610.892015LCE CF1565 *126.5798...

[閱讀全文]

1158MD-144A12.345910.681199MF-629012345.6792141MF009-NN01123.4693027MF-6291 *123.456810106MF-196012.3452128MF-630913.910346MF-2093B12910.345682134MF-6317 *1236.58910624MF-2095 *123.5689102131MF-6326 *...

[閱讀全文]

1821TAD536411210.35.46740TBC0002826127.4561348TAD53641 *1210.35.467731TBC0002869A127.4562748TAD53653 *13.456.7910385TCF-70001246.3572805TAD53653 *12.456.7910653TCF-70001246.357901TAD536591210.3578.464...

[閱讀全文]

582FEA35013.4569149FEA447B1345.68910836FEA353A12.3489101291FEA44812345.689101521FEA35412.345682657FEA449 *23.4568910158FEA364124.3510.689521FEA45212.456102145FEA364C124.3510.689181FEA454 *123.48910291...

[閱讀全文]

2722FEA712 *12.4561588FEA81312.45681015FEA71313.459102332FEA817A *12.468910842FEA716A12.38910608FEA81912345.689102816FEA716B *12.389102075FEA821 *124.58101571FEA716C12.389102320FEA824 *12.3457.8910117...

[閱讀全文]

1011FFA81048U12.45682220FKI-17A008 *12.46.57.9101346FFA81049H12.45682444FKI-17D00212.37.4561641FFA81057U12.45671024FKI-19D001 *12.451642FFA81061U12.46781652FKI-21A001 *12.46.5791643FFA81512U12.4678165...

[閱讀全文]

1681FSN-15A020S123.5610.891275FUA-17C006 *1478.35910209FSN-15B004125.3462937FUS-17B002C *12.3451682FSN-15B00712345.79102899FUS-17B004C *12.345.89710FSN-15B022N12.456102381FWK0030 *123.45689102240FSN-1...

[閱讀全文]

2840FB-5B/CF1400 *148.359101484FCA0243789.10112803FB-5B/CF1447 *12.34.9101485FCA119189.35.671863FB-5B/CF1465 *1478.235910275FCA133 *12.4571229FB-5B/CF14861478.359101486FCA141 *128.3469.5101865FB-5B/CF...

[閱讀全文]

63DCF-1580179.34.256101655DNF-FL2732A1234.5671306DG30000000112345.6791056DNF-FL2732B1234.5671596DG300000990012345.689102810DNF-FNA0033 *12.45.6781500DG30000191912.3569102721DNF-FT0027 *12.489123DG3000...

[閱讀全文]

編號(hào)型 號(hào)通 腳編號(hào)型 號(hào)通 腳2778CFB-6/221 *12345.689101454CP334P028011236.457.891445C-FBC-1770V2368.7101439CP334P0300112.34.567892117C-FBT-1458125.4682231CP334P0300112.34.56.79559C-FBT-152712.4568780C...

[閱讀全文]

編號(hào)型 號(hào)通 腳編號(hào)型 號(hào)通 腳730BSC25-0202C-1123456.7891200BSC25-6503/98K10B5C124.36810.591179BSC25-0203A123.4589.67559BSC25-6503/C-FBT-152712.45681259BSC25-0204A125.39.468102019BSC25-6503/C-FBT-1570U1...

[閱讀全文]

常遇到講TDA8305的（3）無(wú)場(chǎng)激勵(lì)信號(hào)場(chǎng)一條線(xiàn)、無(wú)光故障，有些查了集成塊外圍元件有些甚止換了集成塊（TDA8305)也無(wú)效。 近我作了一個(gè)總結(jié)供大家參考。（Ａ）當(dāng)TDA8305集成塊正常時(shí)：A)場(chǎng)輸出集成塊TDA3654（9）27伏...

[閱讀全文]

測(cè)量場(chǎng)塊TA8427K（7）腳供電電壓正常，其余各腳電壓均與正常有所差異。為了快速確定故障部位將TA8427K（4）腳斷開(kāi)，用萬(wàn)用表Rx1K檔紅表筆接地黑表筆反復(fù)碰觸場(chǎng)塊（4）腳水平亮線(xiàn)能夠瞬時(shí)展開(kāi)，說(shuō)明場(chǎng)掃描輸出級(jí)部分...

[閱讀全文]

A3機(jī)心彩電電源故障速查 故障現(xiàn)象 故障部位 說(shuō)明 啟動(dòng)困難 C515容量減小 C515容量減小,是否啟動(dòng)困難,因機(jī)型而異.有些機(jī)型C515相當(dāng)小時(shí),仍啟動(dòng)良好 C517漏電 Q513啟動(dòng)電流不足,嚴(yán)重時(shí)停振 R524變值 Q513啟動(dòng)電流不足,...

[閱讀全文]

“彩電電源電壓升高的原因、關(guān)鍵電容及維修方法”一文中介紹了由于電解電容變質(zhì)引起電源電壓升高的故障，并給出了一些彩電中關(guān)鍵電容的位號(hào)。但這些電容在電路中起什么作用？如果你修的彩電電源在文章中沒(méi)有介紹，你...

[閱讀全文]

①工廠(chǎng)菜單，可以工廠(chǎng)遙控器解決或換新存儲(chǔ)器可解決。因后期出的機(jī)器的存儲(chǔ)器第7腳，改為接地，而且要同時(shí)檢查CPU時(shí)鐘數(shù)據(jù)總線(xiàn)39、40腳，外接的DA98、DA99穩(wěn)壓二極管是否有反相漏電。 ②水平亮線(xiàn)，檢查是否給偏轉(zhuǎn)提...

[閱讀全文]

在彩電維修中,行輸出電路故障占了相當(dāng)大的比例。而彩電內(nèi)部短路,又是導(dǎo)致行電路故障的重要原因。下面介紹幾種判斷行輸出變壓器好壞的方法,以供參考。一、電壓檢查法當(dāng)行輸出變壓器出現(xiàn)線(xiàn)圈匱間短路時(shí),+B電壓會(huì)相應(yīng)地...

[閱讀全文]

一般電視機(jī)管座在潮濕的環(huán)境中使用時(shí)間不長(zhǎng)，更換普通管座后很快就壞了．為了延長(zhǎng)其使用壽命，在管座的聚焦引線(xiàn)和管口上涂滅弧靈即可＜必須換新管座＞．大家不妨一試．[

[閱讀全文]

曰本三洋公司當(dāng)年推出的A3機(jī)心在中國(guó)刮起了一陣強(qiáng)烈的流行風(fēng)，三洋公司推陳出新，新近推出的A6機(jī)心又在中國(guó)刮起更強(qiáng)烈的流行風(fēng)。國(guó)內(nèi)各電視生產(chǎn)廠(chǎng)商紛紛引進(jìn)仿制，迅速取代了流行中國(guó)的A3機(jī)心。A6機(jī)心為什么這樣受歡...

[閱讀全文]

LA7687A是一塊功能齊全的電視小信號(hào)處理集成電路。該集成電路的主要特點(diǎn)在于信號(hào)處理過(guò)程基本上在內(nèi)部，外部元件很少。它擁有比A3機(jī)心用的LA7680強(qiáng)大的多的功能外：其伴音解調(diào)電路完全集成在片內(nèi)，和外部沒(méi)有直接的關(guān)...

[閱讀全文]

A6-CA機(jī)心和A6-CB機(jī)心大體上是相同的，但是考慮到大屏幕電視機(jī)的一些特殊要求，局部電路作了調(diào)整。以下以海信牌TC2539型彩色電視機(jī)為例，介紹其電路差異比較大視頻信號(hào)處理電路。 和TC2139型彩電相比，TC2539型彩電的...

[閱讀全文]

海華CDS-9021BSC22-160601-6-9,2-3-4-5-824KV4.7-8.4KV300-870V華海CDY-9024BSC22-160601-6-9,2-3-4-5-824KV4.7-8.4KV300-870V樂(lè)德SDY-9024BSC22-160601-6-9,2-3-4-5-824KV4.7-8.4KV300-870V佳韻CDS-9224BSC22-16060...

[閱讀全文]

日立CPT-2005BSC24-08008(NP84C20)1-5,2-3-4-6-8,9-1024KV6.7-9KV520-1100V龍江C518BSC24-08008(NP84C20)1-5,2-3-4-6-8,9-1024KV6.7-9KV520-1100V龍江C491BSC24-08008(NP84C20)1-5,2-3-4-6-8,9-1024KV6.7-9KV520-110...

[閱讀全文]

[

[閱讀全文]