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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 # t; N0 I! @2 N! N) J2 W

: C# e4 q0 E( o6 {. x( b, d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。
1 E# v! x, M0 m* c控制转速的IC, SONY CX-032各脚电压值如图. _3 D! a/ C6 D  k
22-1.jpg
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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
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( m3 L# m7 ~5 k有人走過相同的路了* C8 _* }- ~( H. P( S6 [) H
摘自   Obsolete Media - Forum
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7 h* O, v: p- Ghttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
5 B6 d! f% j/ Chttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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+ S% [8 o' U4 O! ~- BChip CX-032B for Sony TC-558& W: H$ p. v$ m. X
Posted on: June 16 2008 @ 01:43 PM
! E! [& f: c3 |' DBy: RODALCO 1 G5 x* W8 o, b: A9 [: {" d
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.4 J, u% g5 \$ G0 `/ g3 ?* |2 {0 ~- H

1 V7 f3 i: |3 i* s/ N( V$ _7 WLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.( @" j  Z; o9 C/ S9 [4 P! R& K2 q
A rare Sony turntable TTS 400 has the same chip used as well.0 R5 I$ i3 ?' x

3 c; z. N" W) @* V. Z; qThe supllier on this link has the IC listed.
* U' p* S0 e5 }' d+ l; yhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)7 ^* P2 Y. ~% X  j9 D2 w0 e; e1 r+ I

2 P1 t9 ~3 ?0 R3 U$ ]+ V4 JThe German Bandmaschinen Forum thread.# @" _" i5 X# b8 T% W2 O
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond! c* R; i- i, W$ t& y3 O4 |. E3 [

5 G  \% z- v, s* f9 \! j3 JChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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/ q# b" y/ R- A7 Q" U' IContent:
( y1 a( A7 [, H. L. [$ A<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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% n$ L$ {$ k+ P/ S' MI 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.4 Z; A& W, J  X3 Z+ F, K- W
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond5 S& V# A3 y9 T& e% R' F: e
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. v$ W- h5 H8 L( i) q有沒有用零件做出等效的主軸控制還要進一步追蹤% H0 U5 n% m. E' Q. Y+ C7 I8 {, U! e
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4 I: L# f* K) g8 F3 x! r( H# D零件追蹤2 z) d- [4 O- B6 _' {2 l2 P5 z& o) ]
http://www.globalsemi.com/productdetails.aspx?itemno=875032100( e& X0 {+ P% a! y. K7 b; C
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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