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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。, G, w; W( w9 ^% ~% j$ U
控制转速的IC, SONY CX-032各脚电压值如图* {- ]6 e$ l1 R  M1 X* Z) G
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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 6 ?* ]! {$ X% @

, r/ H1 F3 z8 B4 _有人走過相同的路了5 T7 y. s& j$ k4 v# @# ~# h/ N8 C
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
: ~. g* B! f0 t* v! F1 }' }http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558& _9 y  B, c* h. A) E& q4 ~* @
Posted on: June 16 2008 @ 01:43 PM
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Content:
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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.0 V' c# L) h1 s- S
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.
; e+ f* y) d* h( T- P# L' Ahttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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1 z# P+ P& s3 J" cThe 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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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
1 e/ w9 B8 y/ q8 M<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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; Y3 D6 i4 N  k$ n4 I4 d$ ?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.
& v1 k) t& _) QThis will help all Sony R2R users in the near future as well as our machines age over time.* R, H$ J8 ]8 P( A& F0 J0 L* C* @1 r

* x, i: _4 I. W6 A# qKind 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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( Z& G- F$ t/ ]2 U1 q/ [零件追蹤
2 `, p' A6 J# N1 Fhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321005 {. x. t$ h' G  X# |" R0 x2 E
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4 D* Z$ x% W2 S5 B. T' X
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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