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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   p5 e) g, t2 {' v
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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。, T* ]8 b7 \  ?" l4 `
控制转速的IC, SONY CX-032各脚电压值如图
( {3 w; Z+ @( m 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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5 @) V' T7 v8 W- v% m4 q0 Y有人走過相同的路了, ^) d& a: l3 _' A3 [, T: n0 Q. F
摘自   Obsolete Media - Forum8 {8 [6 F; z2 m3 o1 Y
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
. v8 o; @' P* nhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025) A& ^5 \% }8 Y# d1 L

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Chip CX-032B for Sony TC-558
  |% Q6 r" w) I3 zPosted on: June 16 2008 @ 01:43 PM , j1 ^& a3 f8 N6 R! v/ M( I( t
By: RODALCO + e: g) A- p2 U0 j7 C  P
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Content:
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" E$ h! y4 k8 z9 }, m. GHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.. G5 e  J3 g1 V$ S" ?; o% _" V
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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
6 ~) I- @2 E  K% Y& o3 ~- XA rare Sony turntable TTS 400 has the same chip used as well.( ^, L1 w. v+ e9 }
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The supllier on this link has the IC listed.- P% }8 {6 O( L+ ]
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)  w& W- m% d3 H. C2 R1 m4 {

: p; q8 t& o/ X4 {( y" c. k9 rThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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( U  i! L; h: s! S7 X' UGru�, Raymond
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+ R( d% o2 m4 a; c  bChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: - M7 U( B% y5 H* n8 v/ X
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?
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I 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.
! |7 |4 X" p9 ZThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond" r. x9 j# \5 ]9 g3 A5 O
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2 t" I& J" w0 _. j3 Z- d$ |, a有沒有用零件做出等效的主軸控制還要進一步追蹤
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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
( l1 ]& V  d$ H- Y3 r: 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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