拜(bai)事(shi)通28B后(hou)級燒(shao)一邊功放(fang)管(guan)(guan)(guan)更(geng)換功放(fang)管(guan)(guan)(guan)要點：斷(duan)電(dian)(dian)與放(fang)電(dian)(dian)斷(duan)開電(dian)(dian)源(yuan)(yuan)并拔掉(diao)所有連接線，使用(yong)萬用(yong)表確(que)認大電(dian)(dian)容(rong)電(dian)(dian)壓(ya)(ya)已放(fang)電(dian)(dian)完畢（避免(mian)觸電(dian)(dian)或損壞元件(jian)）。檢查故(gu)障根源(yuan)(yuan)確(que)認燒(shao)管(guan)(guan)(guan)原(yuan)因：檢查散熱(re)系統（風扇(shan)、散熱(re)片是(shi)否堵塞）、驅動電(dian)(dian)路元件(jian)（如電(dian)(dian)阻、電(dian)(dian)容(rong)、二極管(guan)(guan)(guan)）、電(dian)(dian)源(yuan)(yuan)電(dian)(dian)壓(ya)(ya)是(shi)否異常。若僅(jin)更(geng)換管(guan)(guan)(guan)子未修復(fu)根本(ben)問(wen)題，可能再次燒(shao)毀(hui)。配(pei)對新(xin)管(guan)(guan)(guan)必須(xu)嚴格配(pei)對（尤其是(shi)推(tui)挽電(dian)(dian)路），確(que)保新(xin)管(guan)(guan)(guan)的參數(shu)（如β值、Vbe等）與原(yuan)管(guan)(guan)(guan)一致，建議使用(yong)原(yuan)廠配(pei)對管(guan)(guan)(guan)或測(ce)試儀器配(pei)對。電(dian)(dian)話：020-38282626

BRYSTON功放的(de)(de)(de)(de)(de)維修(xiu)流程通常(chang)包括以(yi)下幾個步驟：1.首先，確(que)認(ren)問題的(de)(de)(de)(de)(de)具體表現。例(li)如(ru)(ru)，CD無(wu)法(fa)讀取、播放時有(you)(you)(you)噪音等。2.檢查(cha)CD機(ji)(ji)的(de)(de)(de)(de)(de)電(dian)源是否正(zheng)常(chang)，以(yi)及是否有(you)(you)(you)任何明(ming)顯的(de)(de)(de)(de)(de)物(wu)理損(sun)壞(huai)（如(ru)(ru)外殼或電(dian)路(lu)板燒(shao)毀）。3.嘗試清潔CD機(ji)(ji)內部和光(guang)(guang)頭(tou)。如(ru)(ru)果(guo)光(guang)(guang)頭(tou)表面有(you)(you)(you)污垢或灰塵，可能(neng)會影響其讀取CD的(de)(de)(de)(de)(de)能(neng)力(li)。4.如(ru)(ru)果(guo)上述方法(fa)都無(wu)法(fa)解決(jue)問題，可能(neng)需要(yao)更換(huan)(huan)故障部件(jian)。例(li)如(ru)(ru)，如(ru)(ru)果(guo)光(guang)(guang)頭(tou)損(sun)壞(huai)，則需要(yao)更換(huan)(huan)新(xin)的(de)(de)(de)(de)(de)光(guang)(guang)頭(tou)；如(ru)(ru)果(guo)電(dian)路(lu)板有(you)(you)(you)問題，則可能(neng)需要(yao)更換(huan)(huan)整個電(dian)路(lu)板。5.在進行(xing)任何修(xiu)理之前(qian)，請確(que)保您有(you)(you)(you)足夠的(de)(de)(de)(de)(de)知識和技能(neng)來進行(xing)維修(xiu)操作。如(ru)(ru)果(guo)您不(bu)確(que)定如(ru)(ru)何進行(xing)修(xiu)理，尋(xun)求的(de)(de)(de)(de)(de)幫助。請注(zhu)意(yi)，這些步驟只是一般性的(de)(de)(de)(de)(de)指南，具體的(de)(de)(de)(de)(de)維修(xiu)過程可能(neng)會因不(bu)同型號和品牌的(de)(de)(de)(de)(de)CD機(ji)(ji)而(er)有(you)(you)(you)所不(bu)同。如(ru)(ru)果(guo)您對修(xiu)理CD機(ji)(ji)感(gan)到(dao)不(bu)安(an)，尋(xun)求的(de)(de)(de)(de)(de)幫助。

百(bai)事(shi)通(tong)(tong)7B SST2后(hou)級開(kai)機冒煙(yan)是(shi)一(yi)個嚴重的(de)(de)故障現(xian)象，可能(neng)(neng)由多(duo)種(zhong)原(yuan)(yuan)因引起。簡(jian)要分析：一(yi)、可能(neng)(neng)原(yuan)(yuan)因電(dian)(dian)(dian)源(yuan)問題：電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓不穩定或超(chao)出(chu)功(gong)放(fang)機所允(yun)許的(de)(de)電(dian)(dian)(dian)壓范圍(wei)，拜(bai)事(shi)通(tong)(tong)功(gong)放(fang)更換(huan)功(gong)放(fang)管多(duo)少錢值嗎(ma)，可能(neng)(neng)導致(zhi)內部元件(jian)損(sun)壞，進而(er)引發(fa)冒煙(yan)。電(dian)(dian)(dian)源(yuan)變壓器(qi)故障或濾波電(dian)(dian)(dian)容失效(xiao)也可能(neng)(neng)引起類似問題。元件(jian)老化、短路(lu)或損(sun)壞也是(shi)常見(jian)原(yuan)(yuan)因，如(ru)功(gong)放(fang)管、電(dian)(dian)(dian)阻、電(dian)(dian)(dian)容等關鍵元件(jian)失效(xiao)。使(shi)用不當(dang)或外部因素：長時間超(chao)負荷使(shi)用或散(san)熱(re)(re)不良，如(ru)放(fang)置在密閉空(kong)間或未清理(li)散(san)熱(re)(re)片(pian)等，都可能(neng)(neng)導致(zhi)設備過(guo)熱(re)(re)而(er)冒煙(yan)。二、處理(li)步(bu)驟立即斷(duan)電(dian)(dian)(dian)：發(fa)現(xian)開(kai)機冒煙(yan)后(hou)，應立即切斷(duan)電(dian)(dian)(dian)源(yuan)。檢(jian)查與診(zhen)斷(duan)：等待(dai)設備完全冷卻后(hou)，使(shi)用萬用表等工具檢(jian)查電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓、關鍵元件(jian)是(shi)否(fou)(fou)損(sun)壞。仔細觀察電(dian)(dian)(dian)路(lu)板上的(de)(de)走線是(shi)否(fou)(fou)有斷(duan)裂或短路(lu)現(xian)象，同時檢(jian)查散(san)熱(re)(re)系統(tong)是(shi)否(fou)(fou)正常工作。百(bai)事(shi)通(tong)(tong)7B SST2后(hou)級開(kai)機冒煙(yan)是(shi)一(yi)個需(xu)要引起高度(du)重視的(de)(de)問題。

百事通(tong)BRYSTON功放CD技術中(zhong)心：廣州粵勝音(yin)響維修公司(si)。

地(di)址(zhi)：廣州番禺區亞運(yun)大道903號