康佳維修資料-b系列彩電-彩電故障元件速查表

1、.天馬行空官方博客： ；QQ:1318241189；QQ群：175569632康佳“B”系列彩電故障元件速查表序號機(jī)型故障現(xiàn)象故障部位及檢修1T2588X三無（無光柵、無圖像、無伴音）V450損壞、遙控開關(guān)機(jī)時，N401(1)腳電位不變化，更換V405。2T2588X三無（無光柵、無圖像、無伴音）N501(TA8427K)場塊損壞，電流過大，開關(guān)電源不工作，更換TA8427K。3T2588X三無（無光柵、無圖像、無伴音）N601(TDA8145)枕校塊損壞，引起+27V對地短路，更換TDA8145。4T2588X三無（無光柵、無圖像、無伴音）V401(開關(guān)管)損壞，引起F401保險燒，更換F4

2、01、V401。5T2588B不能換臺N201(M37210M3-800SP)損壞，更換N201(MPU)6T2588X行幅窄RP602接觸不良，更換后調(diào)RP601及RP602。7T2588X收不到臺，藍(lán)屏、取消藍(lán)屏雪花噪點R231開路，更換8T2588X豎條干擾、臺標(biāo)移動，色彩不穩(wěn)N101(TDA8361)損壞、更換9T2588X枕形失身調(diào)整RP601,RP602和RP603。10T2588X無彩色C303(TDA8361的33腳外接電容)嚴(yán)重漏電、短路，更換（注：C303開路有彩色）11T2588X顯像管管座打火，屏幕有黑條紋閃動。更換CRT管座12T2588X場幅過大調(diào)整場幅電位器RP5

3、0113T2588X面板及遙控按鍵失控更換N201(M37210M3-800SP)14T2588X藍(lán)屏，取消藍(lán)屏收不到臺，觸V201屏幕有噪點。更換高頻頭15T2588X三無（開關(guān)電源不起振）C423(接開關(guān)管b-e之間)損壞。16T2588X無圖，取消藍(lán)屏有圖有彩、無伴音N801(TDA8720)損壞。17T2588X伴音小C118漏電18T2588X行幅窄，且枕形失真。N601(TDA8145)損壞，更換后調(diào)整RP601、RP602、和RP60319T2588B三無（開關(guān)電源能起振）主板銅皮斷，+12V電源供不上20T2588B圖像傾斜偏轉(zhuǎn)松動，調(diào)整偏轉(zhuǎn)線圈并固定21T2588B三無，指示

4、燈亮N403(AN7812)開路22T2588B三無，指示燈亮C410(開關(guān)電源正反饋電容0.22uf)損壞23T2588B三無，指示燈亮行輸出管V601,場塊N501(TA8427K)同時損壞24T2588B三無，指示燈亮C410(0.22uf)開路，V401(開關(guān)管)擊穿，VD412損壞，更換C410、V401及VD41225T2588B無字符排插松動26T2588B不換臺N201（M37210M3-800SP）損壞27T2588B不能搜索存臺，自動搜臺節(jié)目好不變N801（TA8720）損壞28T2977B屏幕上下角磁化消磁電阻壞。29T2977B枕形失真重調(diào)RP601、RP602、RP6

5、0330T2977B光柵窄而暗，行不同步，無圖無聲Z301、Z302同時損壞31T2977B三無，指示燈不亮R401(100/0.5W限流保護(hù)電阻)開路32T2977B三無，指示燈亮C401虛焊、RT401(20 /T)熱敏電阻開路33T2977B圖像差調(diào)整RP10134T2977B行頻漂移,無圖像N101(TDA8362)損壞，35T2977B三無，指示燈亮V401、V403損壞36T2977B三無，指示燈亮V601(行輸出管)損壞37T2987B搜不到臺（無圖像無伴音）N202(M6M80041P)損壞38T2987B行頻漂移,無圖像N101(TDA8362)損壞39T2987B按鍵無作用

6、N201(M37210M3-800SP)損壞40T2987B三無，指示燈亮V601(行輸出管)損壞C603(5n6/1k6)開路41T2987B搜不到臺（開機(jī)黃燈亮無光無音）N202(M6M80041P)損壞42T2987B三無，指示燈亮V601(行輸出管)損壞43T2987B三無，指示燈亮N501、V601損壞44T2987B有圖有聲屏幕上有回掃線跳動C504失效45T2987B屏幕上下角磁化消磁電阻壞。46T2987B重低音不良（時有時無）C720失效47T2987B三無，指示燈不亮F401、V601損壞48T2987B無彩Z301(4.43MHz晶振)損壞49T2987B伴音不良C820

7、失效50T2987B三無，指示燈亮R447(3.3K/0.5W)開路51T2987B三無，指示燈亮R605(0.68/1W)開路52T2987B三無，指示燈不亮RT401熱敏電阻開路、V401擊穿53T2987B無彩Z301(4.43MHz晶振)虛焊54T2987B枕形失真調(diào)RP601-RP603無作用，換行變55T2588X放錄像無彩C301失效56T2588X圖像偏黃VT903、VR904接觸不良57T2588X缺紅色V901虛焊58T2588B三無，指示燈亮R404(82K/2W)開路59T2588X三無，指示燈亮C410(0.22uF/200V)失效 60T2588B三無，指

8、示燈亮T401（開關(guān)變壓器）引腳銅皮斷61T2987B三無，指示燈亮C462過熱開路62T2987B三無，指示燈亮R417(15/5W)開路63T2987B自動關(guān)機(jī)V604損壞64T2987B由尖叫聲改C826,C827,C829,(TDA1524A 1 18 10腳)原為1uF,改為4.7uF/25V65T2987B自動關(guān)機(jī)RP401接觸不良66T2588X自動關(guān)機(jī)C606開路67T2588X無字符無圖像有雪花Z201(MPU 24 25腳外圍)損壞68T2588X三無V406損壞69T2588B遙控不接受N215遙控接收器壞70T2588X三無V401開關(guān)管損壞71T2588B三無N401

9、光耦損壞72T2577B自動關(guān)機(jī)R611(82K/1W)阻值變大73T2987B三無，指示燈亮R447(3.3K/0.5W)開路74T2987B三無，指示燈亮R605(0.68/1W)開路75T2987B三無，指示燈亮R602(3.3K/5W)開路76T2588X紅色弱/調(diào)試無效TDA8361壞77T2588B水平線C506(220uf/35V)壞78T2588X彩色失真N301(TDA4661)損壞79T2977B不停臺N101(TDA8362)損壞80T2977B無伴音，AV無圖N801(TA8720)損壞81T2977B三無，指示燈亮R611(82K/1W)開路82T2977B無圖無伴音，水平線N501(TA8427K)R431(0.68/1W)損壞83T2588X偏色（調(diào)白平衡無效）N101(TDA8361)損壞84T2588B伴音小N801(TDA8720)損壞85T2588X電源開關(guān)不良SW(K401)損壞86T2588X搜不到臺V101(2SC1815)損壞87T2987B三無V601損壞88T2588X三無V406、C401、RT401損壞89T2977B圖扭R101(100)開路90T2588X單邊伴音失真SP損壞91T2977B機(jī)內(nèi)響聲（高頻聲）FBT磁芯松92T2977B只能收到中央一R113(270)開路9