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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。: E! v" m, X* [! M- }
控制转速的IC, SONY CX-032各脚电压值如图5 G" }1 ^) x8 B$ S$ C
22-1.jpg
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# \9 |. q! d( l0 c* R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 4 f, K6 W- i0 ~) D; p; l' ]- N6 U
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有人走過相同的路了# F- `' b; u( g3 Z3 X4 y9 O! j
摘自   Obsolete Media - Forum2 f3 \' H# C/ R$ D# P2 @  Y# ]

5 [- Q$ h; s' s6 h: g9 r/ Dhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * i  }( l1 m$ v# o. f- ^4 ]
http://obsoletemedia.com/geeklog/forum/print.php?id=2025, T! c" v7 F, d4 Z

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' u% I% ?7 e. w8 dChip CX-032B for Sony TC-558
* r/ _: y1 N7 _Posted on: June 16 2008 @ 01:43 PM
( }% j# c; Q! e0 P! yBy: RODALCO 9 F+ ]) r9 H6 O
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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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5 \$ _; U  t" @$ f1 W! j  SLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
6 k+ [% h  m1 {' {" Q' n& wA rare Sony turntable TTS 400 has the same chip used as well.* @' z. ^; r/ A/ t  ~: ?
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The supllier on this link has the IC listed.
. Z% o. R9 ~; `' v, U8 p  |http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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; r1 m2 H1 i+ k9 p& q# pThe 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+ _! c0 [0 z7 N! m4 b! ?' {% i7 t
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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?
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/ T8 Y7 k7 H7 U  X. c3 BI 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 _7 A& n9 c$ q5 U% `
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond7 G  C3 }5 t& O# x5 i7 J
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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+ E6 U( O, K* h9 E, m+ p) Z
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零件追蹤
) u8 T# p- p& z1 X! L  B' Q3 hhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 q1 Z) B- `* s39.99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- k3 W7 n6 v7 ~0 `9 D' L
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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