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求助:主马达不转

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发表于 2012-1-3 12:57:46 | 显示全部楼层 |阅读模式

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本帖最后由 大头猪 于 2012-1-3 21:39 编辑 2 i$ u! n  C' u8 z+ ]5 T" j* E
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新年捡了部SONY TC-580,遗憾的是主马达不转,经检测怀疑是转速控制电路故障。如如图加一个电阻,主马达会转,改变阻值便可改变马达转速,但转速很不稳。
% Z" I1 ~: l0 J+ k0 L$ i5 N7 ?# y控制转速的IC, SONY CX-032各脚电压值如图
7 {7 Z( S2 G  o7 |1 ]! p 22-1.jpg
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!
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发表于 2012-1-4 12:40:17 | 显示全部楼层
本帖最后由 yjwu 于 2012-1-4 12:57 编辑
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有人走過相同的路了8 g) I' Q3 b! N4 {# c. H
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
9 M: c2 ]7 ~+ N6 J% u/ M7 `8 O  jhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
9 S# L& Y# w( |! C: [" {% EPosted on: June 16 2008 @ 01:43 PM
& x! B. F1 T5 V. PBy: RODALCO
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Content:
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  [" R7 X* @: u6 Y( |; rHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.7 Z+ |, [# m0 \$ x" `6 o

* z: G4 X+ Q- s, }4 e7 I1 nLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.5 ^" R' z) C$ [/ [; ^) y
A rare Sony turntable TTS 400 has the same chip used as well.. N. q0 d& n6 w' s; p

0 Y; |; L6 v/ \* N9 T( C# i0 |The supllier on this link has the IC listed.
) c5 A$ k4 ]& Y' S! M! J7 p* dhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 p; }& c3 [3 t- X
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The German Bandmaschinen Forum thread.& h3 t. }( C" @- k7 ]
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 h9 k2 E/ O" t, B9 ^; O6 D6 l
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Gru�, Raymond
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. m) E  l$ R7 f- _1 n3 NChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM " }7 v! G3 z4 Q6 ~
By: RODALCO
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<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?& Y! ]) g- |5 R# R- b

& }: b* S5 `3 k8 G6 HI got some of my Dutch R2R friends to have a look at it as well and with a bit of luck they can design a circuit with disrete components.
& R5 b" ?& L/ x4 X9 b- @1 @5 L1 j, EThis will help all Sony R2R users in the near future as well as our machines age over time.
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/ _: D; k. ]+ t  v3 \Kind regards, Raymond) V; r% x3 b% Z- m) [. q9 d

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( q1 i6 X" \5 I  A- x有沒有用零件做出等效的主軸控制還要進一步追蹤, l$ F: M& f$ B$ U
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零件追蹤5 K. E8 d( L  v* g
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
  H' N; E8 j9 r  A+ K4 Q9 x  t% J9 o" Y4 x39.99美元 似無存貨 必須從其他舊機器拆 不過可能也是相同的毛病    -->  設計的弱點
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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