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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
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0 C9 i5 A8 j1 }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。1 M8 g0 K  B. I6 i& U8 X+ U
控制转速的IC, SONY CX-032各脚电压值如图
+ {- z, G* T3 x, \% {/ t 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!3 X5 |) ?7 V# z' c* Z' y
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 . e3 z) B  L* ]% V! u# x

4 I( V7 K8 R. c9 a( y$ T5 I有人走過相同的路了; P: V7 @: B* v. z. s# ~; K
摘自   Obsolete Media - Forum
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) d2 E$ s( V# A+ I" o2 w$ D. Thttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 : v6 `' v& d6 H
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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$ [' `! m' g% q" k% IChip CX-032B for Sony TC-558; ]$ X* q) y; |% D$ v. v0 }7 z
Posted on: June 16 2008 @ 01:43 PM , _) F/ b+ p1 D& J8 C
By: RODALCO
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Content: 5 {+ P$ c3 Y% M9 d* M4 O

7 b0 K0 p; l3 T9 pHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.4 \+ ^# z  D9 I( ], N" s+ c
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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.
2 k# k8 q1 F% x: Y: fA rare Sony turntable TTS 400 has the same chip used as well.
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( T. r2 g: Y4 v) `2 P$ aThe supllier on this link has the IC listed.
& M& p# A3 E. h  k# whttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)! q; P0 r9 Z! C1 |4 T- J) H
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Gru�, Raymond
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+ ~) d9 C0 R2 _+ pChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 1 B3 |" U% U# [
By: RODALCO % a1 L* n5 d/ S7 Z

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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?$ x! ^$ B$ D( Y3 ], Y* V* G
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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.
/ a' ~/ D- j  @2 f8 }2 n0 @& Z& f: ~This will help all Sony R2R users in the near future as well as our machines age over time.
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/ A. ^- G* d* b) L- p, X# x! fKind regards, Raymond* S# B) ?' L4 t6 ^
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9 }* r  @/ ]. w! b3 H/ t! T* B5 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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零件追蹤1 I  G* Q! C9 a8 Y
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
) V. i0 n- `  ?$ y39.99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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