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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( j+ G8 r# D
控制转速的IC, SONY CX-032各脚电压值如图
! [$ k1 A2 ~" w0 m/ U( ^ 22-1.jpg / Z1 }. |7 d5 P+ ]* O

* @! O$ I- T; Y4 X# d  S4 V1 _是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' |5 G3 N, W& W& }4 e" g% \* \! R: k+ 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
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有人走過相同的路了: P, C, ~8 v2 y8 A* }
摘自   Obsolete Media - Forum3 S' l, M2 H8 t

+ U9 g" z0 y  \+ W8 p# ^9 f, s4 h7 `http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
' [" f" E6 J, |7 e% S6 dhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
! Q' O6 k; q, F7 hPosted on: June 16 2008 @ 01:43 PM
; b& A9 {% o' ~. H* ]. s5 uBy: RODALCO
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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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+ b3 E$ \1 z" H% U6 F; zLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
- @) z8 Y9 ?6 }; sA 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.
- J5 F7 y/ f7 shttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)# M0 R" c- P; Z
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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)" T' i9 F/ d! T3 |& z' G. @
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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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<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?& |* ^; g" h# f8 V$ c
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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.
. p# P% q0 P0 v9 F' {; p0 t1 X* mThis will help all Sony R2R users in the near future as well as our machines age over time.
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. y  X) \# s% A& H2 \Kind regards, Raymond
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) i/ ?1 @4 N0 H+ m4 M3 M有沒有用零件做出等效的主軸控制還要進一步追蹤) x+ n/ K" x5 f% G
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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
1 j* s& r8 F7 X+ b1 _5 C7 `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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