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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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7 E% u7 C% K4 M/ h' A( Z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。
' `3 F) E0 u% P# ~! e( X控制转速的IC, SONY CX-032各脚电压值如图, y: F# W; y+ t& c
22-1.jpg % C( O0 l) o1 i! i) S  t
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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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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 1 u. F: `2 H  D2 x" k: U
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有人走過相同的路了
* e2 ^9 u# q' b$ ^8 a" [% G摘自   Obsolete Media - Forum
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! }, X6 S; b2 `http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ! `  Q0 |) c# U  N! z* n
http://obsoletemedia.com/geeklog/forum/print.php?id=2025# d% G. p; v: m* J2 U( w
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7 j& Q7 J# Q" l* l3 k( Y( X# {Chip CX-032B for Sony TC-5580 ]/ N) n- `4 y0 {
Posted on: June 16 2008 @ 01:43 PM
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Content: 1 Y' R1 `" z& z( J! e0 ?# X

* n1 y" O! @' l( UHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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! f5 w/ p- o0 i# p* y# S; fLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
3 ?& @8 z8 `# N) N: p# OA 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.) z/ g' T" s3 ]. a: ?
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料). x2 v# B9 \/ @2 c, O" @; Z
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The German Bandmaschinen Forum thread.  o* J; ~  o# u9 `  j
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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" [4 C1 I1 g1 f" j/ ^% l+ d, gGru�, Raymond
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1 M- H' Z4 ~- S1 e5 e8 {Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 u. z( o) {5 jBy: RODALCO
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Content:
+ R5 c9 d! q! V+ F! \. W5 w<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) f4 k1 T3 m/ C# ~' _4 ?- {
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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.5 i, t  y# R- Q
This will help all Sony R2R users in the near future as well as our machines age over time.0 j) |3 B- c6 x6 H6 H" s
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Kind regards, Raymond" A$ a$ y8 r; v" y1 v
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$ C- L/ f2 t9 y$ H* w- g有沒有用零件做出等效的主軸控制還要進一步追蹤
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# e; w2 m# A3 Y! ]2 F) @零件追蹤0 }% ^# ~& C0 |
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
; M, I6 _4 F! F2 H! L39.99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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