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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 $ H) V4 ~" }8 k' \% I% U
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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。" x  I/ `, Z/ ?4 C! J* f
控制转速的IC, SONY CX-032各脚电压值如图6 [9 H+ O0 j6 U8 K! M
22-1.jpg
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( U, J* w, ~* O! a# M8 Y0 X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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7 n. A4 r- f7 N有人走過相同的路了: M; d9 \- F) D( S$ |, ?
摘自   Obsolete Media - Forum. k5 M/ X0 t) o2 f

* L2 J4 V/ x3 ehttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
3 N, h5 Y) q5 J+ F% i* Hhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558  A) c( ]& O8 d# i) W. z- Q
Posted on: June 16 2008 @ 01:43 PM
7 p( K: ^$ ~" A) LBy: RODALCO / ]7 Y% M( F! i& t3 t) ?

5 h$ N- W/ y7 ]% L3 i% y1 QContent:
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. z1 y+ s, Z. I% P! o0 BHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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1 Q9 o1 Y9 N! m  tLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.7 i+ K# [. o- W% c' g( P8 M& C
A rare Sony turntable TTS 400 has the same chip used as well.0 L9 e9 {% X, ]( I

  Z, a- V+ \# y- b# IThe supllier on this link has the IC listed.
. Y, J. w# v- G& s. q# s' D5 W3 Mhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)( x9 f9 @$ J0 a9 c% \2 l7 o& X

- x$ F! B( ^+ gThe German Bandmaschinen Forum thread.  ], O' m5 ~9 f8 y) l4 p; h! S; o
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
0 O4 O0 `+ O8 m5 j" a7 _. z" @By: RODALCO   D6 g; P9 R" `- \) D3 T* O! |1 s3 k4 u

0 l/ B  M  L/ l2 o, n, V' y- T0 }Content: ' `5 Q1 h" B( n5 G$ ~# h$ {$ t
<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.
  w& w5 J( A1 _' o7 K2 zThis will help all Sony R2R users in the near future as well as our machines age over time.
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0 |, B4 m! k0 q+ @Kind regards, Raymond2 q( r% F. R, t3 h

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1 c9 X4 p" U- h: v$ A4 V  g6 `6 I有沒有用零件做出等效的主軸控制還要進一步追蹤* l, U8 c  V! o! h' Z
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零件追蹤
* [( _8 x# Q! d6 mhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100% g0 s: A5 u$ w6 O6 T
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5 y3 @6 m6 a' ^5 M; x; P
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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