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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。  o5 l# ?1 S# ]4 G  z( B
控制转速的IC, SONY CX-032各脚电压值如图+ I: h: ?6 `+ b% z
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!1 p1 V7 u1 e. ]& i* 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
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/ A1 G! g  B) K& H. K有人走過相同的路了
. W% X# C6 c# o5 P摘自   Obsolete Media - Forum7 v* q9 `1 p; I( B- H
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
; F3 A) S2 M6 o3 W% {$ e5 ?) mhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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3 J9 W% A6 D( V5 f! |! A3 V3 k, p$ HChip CX-032B for Sony TC-558
8 {! q5 W4 K, D4 t- y( M; tPosted on: June 16 2008 @ 01:43 PM : I% ~8 j. \2 x2 H
By: RODALCO
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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.  B! m$ E  m/ w" v8 e
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.
0 j" D) e& v3 R, T( V* J: `# @http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)0 [, i+ @& @/ N2 D" k# G

0 s& s& N3 p2 \  |4 aThe 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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Gru�, Raymond
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# \/ r* e9 p, [Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
7 D( \5 Y6 M, T: q; \5 k<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?4 v1 @8 }# `! V4 k/ [  z! Y& }

! N' d2 b8 ^* H  B  R: XI 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 K0 B) \6 U4 O9 YThis will help all Sony R2R users in the near future as well as our machines age over time.
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, P& N( R8 I) h) ~+ ZKind regards, Raymond
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- s% ^4 v& n" b% V5 _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- |& j/ j4 b* y) }/ Y# C0 s
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! [( V" m6 [) I. k% a' u
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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