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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 4 S9 Q4 w1 g( D! H$ d" y

* f7 X% [/ z! }8 f, f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。" j$ }! V7 t1 ]3 m% g
控制转速的IC, SONY CX-032各脚电压值如图
2 L3 L7 F* n, I/ b- u 22-1.jpg
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- y; O& p- m' I) A, ^" l# s0 }, W# \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
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有人走過相同的路了) L) O. f0 G8 v1 Q
摘自   Obsolete Media - Forum! ?* N4 s: |' X8 r# ]$ g2 j
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
+ X# w, M$ e! F& I7 _http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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# j  r* A4 ]3 oChip CX-032B for Sony TC-558, w/ b; l& X" w% [2 R: f4 X
Posted on: June 16 2008 @ 01:43 PM ) C; j) {, W! ?" `6 F4 [
By: RODALCO 2 `+ e' s/ T) e1 A' S4 g- J" I

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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 E3 H9 E; Z5 o/ T1 b% MLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip." g( W; o0 p, F& F7 `
A rare Sony turntable TTS 400 has the same chip used as well.  o- x1 u' v# [& @0 f  C
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The supllier on this link has the IC listed.; O; k; R% S- q' @( s4 M$ [
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)4 z5 Z. E  \! t& I* [

& w! _1 m( B; \+ t# m7 M0 }: hThe German Bandmaschinen Forum thread.1 H4 H% [, S5 i; h% t. l

! u8 W# K$ c( c# T$ R+ Fhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效), b5 K4 J6 z6 L0 U

; l9 D( l) m+ A8 A* C. xGru�, Raymond  S: M/ `3 D% t; L) A4 e" u
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! t; @# b7 r& J" h: oBy: RODALCO
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8 r& x! {9 ]/ ^- Y  [4 x8 e9 S% XContent:
  Y( S* a* b, r8 E# {<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?0 l6 p, @) Z, t8 l" 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.
$ }3 I& y" q/ \) Z9 E! wThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond8 H# A: o- ^8 u& U5 r

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* H( P' ?+ V8 X* ?3 x4 W1 t8 l有沒有用零件做出等效的主軸控制還要進一步追蹤! k6 C! ?2 v, z* O6 R# d% a

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零件追蹤
  C# k0 G0 D7 q$ yhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
# }( |8 _$ j7 J4 K" A) V39.99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: U# `& E( d3 B2 X* |" V
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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