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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。9 I) \. B# b/ R# B
控制转速的IC, SONY CX-032各脚电压值如图% t3 P; M- k( Q4 L  @) E
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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 y; Y1 c: U; I! E; [
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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有人走過相同的路了! e4 E+ l, I% z+ o, }! E9 P9 S
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
& O/ c1 w# x; I& x8 B/ Ahttp://obsoletemedia.com/geeklog/forum/print.php?id=2025" `/ e- [0 p& Q& }  U' w2 r: Z: B

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; t% N3 C! Z% r9 v; `Chip CX-032B for Sony TC-558* D0 H- P7 W+ L, Z1 r3 [- d
Posted on: June 16 2008 @ 01:43 PM ( U9 Q2 N7 S0 J; \2 k
By: RODALCO
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2 @# V' n5 ?  f( y; w1 _2 |3 jContent:
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; ]' S: ?* |; E1 r* |& rHi, 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.
- E, m7 {( ^) F! [+ ?  fA rare Sony turntable TTS 400 has the same chip used as well." K. i+ s" i* r! _6 f

" o7 w; f: ?) p4 ~The supllier on this link has the IC listed.' ]& X) h1 ~1 R# U
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The 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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  u* e# C7 H% ?/ R$ sGru�, Raymond
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: p: b$ a0 q5 H/ j  {Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
4 }/ O6 y) x$ q, n1 P+ o1 `By: RODALCO
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6 Q" h) {* e8 f( Y<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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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.
- [. M; J3 h( B' PThis will help all Sony R2R users in the near future as well as our machines age over time.
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; i5 D8 e6 M% J1 }Kind regards, Raymond
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, L+ P, J( i6 u7 S. k$ X& F% G有沒有用零件做出等效的主軸控制還要進一步追蹤7 r& R# H3 z5 k" e1 C
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% C+ Z* d, @- A零件追蹤! C3 r$ _/ e" E+ A
http://www.globalsemi.com/productdetails.aspx?itemno=875032100; w9 c: i3 h4 p5 Y' A, ^! t+ I; o' X
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9 T, `2 F4 W" h
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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