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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 2 }( A! S- a: _3 q- w

) r7 l  v; d1 \$ g6 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。
  I' ?+ C5 Z& y: }控制转速的IC, SONY CX-032各脚电压值如图, [+ J1 b2 B9 M9 t
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!. i! ~6 a+ ~! e/ I( @( o! c% X' H
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 ' l% m2 ^" r: x! x
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有人走過相同的路了
) E! p' f: ?; H+ y摘自   Obsolete Media - Forum  ^: U4 U  e. q0 s- ]* j5 o6 T
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
' p: U; z/ x! D9 C5 T, Q: ahttp://obsoletemedia.com/geeklog/forum/print.php?id=20251 ]! @; A$ U  ^& _8 X
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Chip CX-032B for Sony TC-558. o9 u( O! z3 d' q, E
Posted on: June 16 2008 @ 01:43 PM : J0 Z% \* W* u4 K- Z" c
By: RODALCO
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Content: 8 K9 |! ^/ w3 e

9 [6 C, ]5 ?9 s7 h4 [Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.# C  A3 H7 G4 \  Y
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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
" ]1 ?* \- X' S; `A rare Sony turntable TTS 400 has the same chip used as well.6 _1 g3 W* ?, y1 O
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The supllier on this link has the IC listed.' M1 G- f; f+ u; `: H
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)' e3 q5 b) `  w
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The German Bandmaschinen Forum thread.
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, }8 z2 R5 v& `6 a7 a! E/ xhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond4 x! O/ |7 t9 s, N

5 M: U$ s% t5 L4 v# FChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 0 y" ]9 i6 ~4 u$ V- V: n$ A
By: RODALCO
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Content:
; \( p( q% j; @; U# p8 |<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?# f, q$ Y& J- m+ F; v9 |, y# [

) {  C) ^5 u& A, X; b  C, rI 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.
; Q1 R( l- l# t' u8 m* dThis will help all Sony R2R users in the near future as well as our machines age over time.
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  G  t  P9 f) tKind regards, Raymond2 o, B. Y* n) [5 G( G
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$ O% F7 j4 x3 [* Y- w1 T3 o: X有沒有用零件做出等效的主軸控制還要進一步追蹤+ P+ ]& B+ b& i/ u& L

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零件追蹤: p4 p4 Q2 H0 o
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
* Y1 z2 o: T# d2 T$ E, i( c39.99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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