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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。+ T' S. ]6 F' {5 g
控制转速的IC, SONY CX-032各脚电压值如图# C* I: c, h7 M' I  i" S' X
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!2 @- \4 L2 s( R9 X
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 : w. T% a+ z) B) ]; W( |& S0 r3 Z
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有人走過相同的路了9 o" N' U4 I( e( m2 H5 v
摘自   Obsolete Media - Forum1 A+ l# ]+ \# b; N% B
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ' R& x% j1 f! A( m& B
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558! R% J7 B& n4 H
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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. [6 g- i- N# F& [/ N! oLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
1 x. i" K& h* y6 P4 u# o1 ]! BA 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 y* t' f, M2 G5 Uhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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0 |$ S+ B7 e& x" l; `3 C3 _The German Bandmaschinen Forum thread.  K& ]2 m5 H4 b! S& N: j& f
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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! X' C! I* j9 r. q7 R& w# N% h' aGru�, Raymond
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5 W+ W' S! ^2 h. a1 h: U# LChip 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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. h, l, U& W9 W( a6 OI 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.5 |/ W7 M* b" V& M8 i
This will help all Sony R2R users in the near future as well as our machines age over time.
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5 e2 n* b6 M# v+ h6 s; vKind regards, Raymond$ m0 O6 g' r8 k# O, r
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7 a/ H- t- |! O0 C, o' ?* B! B有沒有用零件做出等效的主軸控制還要進一步追蹤% j0 `5 |! i( W. }( r
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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
1 [+ r+ l* m+ u1 f2 @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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