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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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) n7 F# K8 {9 f! a+ a8 m9 o% }3 |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。  n8 f. G" a/ X$ [
控制转速的IC, SONY CX-032各脚电压值如图
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!% z! ?5 L: s+ k+ j$ v# u+ `
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 ' r8 n  h5 T9 D0 |- e

. X; l/ V( z9 d( i/ ?5 b; L1 {, ]有人走過相同的路了
( h- e0 n2 H  w! j- k摘自   Obsolete Media - Forum9 b5 w3 S4 u! h3 A

& _. c  ~5 ^, t) e1 `http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 2 z$ n6 b9 o* t' }
http://obsoletemedia.com/geeklog/forum/print.php?id=2025' }1 [' A& W# g
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Chip CX-032B for Sony TC-558) s. `+ V/ F* W  \5 R  U0 X+ ^
Posted on: June 16 2008 @ 01:43 PM $ L# W& Q/ |3 u5 V/ ]3 c/ u5 t
By: RODALCO
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, `( `8 F$ `' @' oContent:
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: c! n  j  O. N" v( XHi, 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.  |" u$ u# [* a, l" c( a0 d; _
A rare Sony turntable TTS 400 has the same chip used as well.
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8 Y& F. U, s. t1 p' g: g( n! ?The supllier on this link has the IC listed.. |* `, D. b) P6 Z, k
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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6 D) e/ n, ]) V9 m3 F7 J+ c4 l) s9 {http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)9 |" e* Y' n& F& @. b4 `6 C
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
8 k  j0 F0 s# V5 lBy: RODALCO ( N( k# O0 i+ D" h. V
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Content: ) |" G3 I# D* n/ z1 n
<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.
( K8 v. O/ t3 m% oThis will help all Sony R2R users in the near future as well as our machines age over time.7 f) m! V3 }- k' |3 q' \
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Kind regards, Raymond4 ?3 f3 e. |& B

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8 G: C9 h2 j* |6 ^/ d& L. e  i有沒有用零件做出等效的主軸控制還要進一步追蹤  G0 u! Q& O. S7 [5 c) c7 d4 ^
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零件追蹤* X1 v  j" X* Q1 H* G. {( A: _
http://www.globalsemi.com/productdetails.aspx?itemno=875032100/ ?% n, \7 u. A' ^9 k' \
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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