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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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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。6 C: m. S2 [9 d! c) M6 L) W% e
控制转速的IC, SONY CX-032各脚电压值如图
  Q% _2 l* f  B* v' Z# A, T& E 22-1.jpg
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) p" }8 M; [0 t( j. U1 I2 o是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!+ i# i+ N$ n2 \& B( c4 S8 W6 {
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 , `6 j5 @# W$ M/ S5 x/ e; Q
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有人走過相同的路了4 O* v) ]) ^+ f; H6 }+ r! @8 w
摘自   Obsolete Media - Forum1 {' I: ]& `' _8 c; N0 n3 I2 h
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
7 P% ^3 }& W+ Ghttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
7 D+ c, g- j5 g) t% ZPosted on: June 16 2008 @ 01:43 PM 4 l+ e7 C$ j/ A* I* r! ^
By: RODALCO
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Content: 7 o: Z. N, @  X, P/ H9 A9 f, ~6 l
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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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.
$ c; I5 p, M! Q8 o! X6 _A rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.* {! q% I, x* S- a
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)( k2 _7 o' _; t- u( x1 L

" ]( L: {* J, X! A8 h. [- FThe German Bandmaschinen Forum thread.& E5 e( b. T* z( D- G
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)2 S8 b: w, F1 f" e5 K
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Gru�, Raymond
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1 V) B7 Y3 R  }8 g' ^Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ! F2 |1 S( i: `' X# s6 t" P' [
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?  k- W9 b4 n8 b; m; w% w
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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.
- \8 o+ I) a( k5 U- AThis will help all Sony R2R users in the near future as well as our machines age over time.
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9 ~$ O' h/ y* z/ c% q' V+ ?Kind regards, Raymond
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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6 y2 L0 M$ p# e1 {; s
http://www.globalsemi.com/productdetails.aspx?itemno=875032100) q( u2 P, |% l( \7 L
39.99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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