求助：主马达不转

大头猪

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  Z! [; T' X2 E& w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。
+ D2 P  Y. o3 Z2 e( O1 S. O1 k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！
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yjwu

& I0 p5 Q! q. y8 i4 \4 m  j' _. C+ [有人走過相同的路了
- q  m: r* G; x6 G" p' c7 u摘自   Obsolete Media - Forum
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) J8 P/ H' A6 o; p( P- _8 S& W" Zhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
3 H. e) w% [3 e! ihttp://obsoletemedia.com/geeklog/forum/print.php?id=2025


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Chip CX-032B for Sony TC-558
+ G) i7 u" g/ ?Posted on: June 16 2008 @ 01:43 PM
By: RODALCO

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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.

Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
% V3 c) o( j  E: ]3 D4 L% t, }# ZA 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.
4 @4 o0 x$ ~" Ehttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)

The German Bandmaschinen Forum thread.

/ Z) Q9 Z  A" E, V2 h& T- fhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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. [3 U7 P. h3 {1 n  {, gChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! ~1 u7 e0 a! Z* Z0 x- nBy: RODALCO

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% n$ C3 ~( h3 p# e' o0 b5 ^<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?

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.
This will help all Sony R2R users in the near future as well as our machines age over time.
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. y2 l5 ?. c( ?1 SKind regards, Raymond


! B# N8 j3 A. }有沒有用零件做出等效的主軸控制還要進一步追蹤


零件追蹤
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
# ^: c4 L/ p/ m9 q, k9 P6 f2 n39.99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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大头猪

谢谢！