咱…親愛的眾網友~大家好!
在繼上一台FP93V(小白)的維修後,緊接著我又收到這一台小白的『活帖仔』,它的兄弟機,FP93VW,我就喚它是『寬小白~』,型號多了一個『W』字,可想而知,就是寬螢幕尺寸的小白~一起來看看它的情況~
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耶~
這不是你以前在用的保固貼紙嗎?還押上日期:102.01.05,距今約1年又5個月,時間算是不長,不過也不短~
你一定會問,我不是常常說:『你修過的螢幕,保證用到生蝨母嗎?』那怎麼才用一年多就掛了啊…,這…這…,請聽我說吧~
這是我花蓮客戶給我的mail內容:
atunPCLCD 發表在 痞客邦 留言(0) 人氣()
咱…親愛的眾網友~大家好!
明天是端午節,端午節要做什麼?就吃吃粽子囉~我啊~意思意思…到『成男生』那~買個5ㄎ,全家各分一個,大家有吃到就好…
今天來看一台42吋液晶電視的維修,是BenQ(明基)廠牌,型號是:SH4241,『4241』與『SH4242』,算是同樣的架構,只是…一回再說明吧!
底下是它的外觀,跟37型的SH系列都一樣~
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這是它的故障現象:啟動後有顯示,只是左半邊顯示不良,成油畫狀~
這狀態以前有處理過,這回是相同的嗎?一起來看下去…
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這是它的內部電路分佈:
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剛剛說『41』與『42』不同的地方,就是『41』型多了數位介面,可以再架設天線,收看數位頻道~
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來給它轉個邊~
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這樣它的終端顯示處理的電路,比較上手一點,沒辦法~就人矮手短啦~
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atunPCLCD 發表在 痞客邦 留言(0) 人氣()
咱…親愛的眾網友~大家好!
好久沒有遇到『小白』了~
其實也是有啦,只是維修過程不夠刺激,所以就都沒有發表維修文,這一次是外地寄件過來維修,故障的狀況也比較複雜,所以來給它PO文說明,順便也讓外地寄件來維修的『小哥』,能夠更加清楚明白,這麼大老遠從台北寄件來維修,你…並沒有白費功夫喔~
底下是它的外包裝及機身外觀~
BENQ(明基)型號:FP93V,我都叫它『小白』
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這是拆開後蓋的內部構造:
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『小哥』說,送電後,電源燈閃了一下就熄滅了~
可是!現在送電是連閃一下都沒有了,根本就是送電無反應!
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這是PI板上的近照,所有『濾波』都好好的~
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唯獨…
這…是電源一次側的高壓大桶, 一個腳位周遭有許多乾涸狀的粉末~
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這個是電解電容的電解液流出乾涸的狀態,根本不必再做測試,直接換新啦~
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更換完畢後~並非這樣就可完修~
這一張是橋式整流二次側的兩個接點,這裡不該是『短路』的~,那…是橋式整流器被擊穿了嗎?
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