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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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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。7 m1 E: P% e5 P: U
控制转速的IC, SONY CX-032各脚电压值如图
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- s# K+ E: h/ q" h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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有人走過相同的路了* j& G2 Z4 w+ \2 f! X' \9 m! m) t6 U
摘自   Obsolete Media - Forum& b, ]4 D* E3 L1 ]. j3 Q7 [
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
! @& Q: ?! V7 X, e& A# Chttp://obsoletemedia.com/geeklog/forum/print.php?id=2025  k4 j; l7 |- {% G  Z; v. c
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Chip CX-032B for Sony TC-558: x4 l  g1 ?$ l& s' ~
Posted on: June 16 2008 @ 01:43 PM
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& S* V9 c/ Y* f1 d( d! C7 {* u1 uContent: ; S# `  R2 X3 U+ z7 a' ?, t

! {8 T3 P5 u" T% c0 |Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% {* h% ^! ?6 H3 @7 P; n8 ~

& p* E) o. _) t: _- ]1 \  M4 |! sLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip., u/ o; k( ~# G2 Q2 f% {' m+ w* ^
A 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.1 s/ B2 H- W) y- ~0 ?
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)& U, ]' K- @* Z) h5 ]& V2 V: o
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The German Bandmaschinen Forum thread.% r: {* k0 B) g! k

: U+ D+ }. d- m: t" `. A1 xhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)+ {5 _- b( S: A7 l# b

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* M( y3 ?! [6 oChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
' V* D# F, W; Q4 g<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?: J* \* k- K2 S) _& J9 R" [) K7 G

% t4 ~* l( J' }0 |- k" UI 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.
! n  R  _% L0 k4 @' DThis will help all Sony R2R users in the near future as well as our machines age over time.* _" |0 q, w* Z1 u3 w  `* c
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Kind regards, Raymond
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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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零件追蹤
7 _0 u! b# p( V# O0 dhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
; M7 f" h; m! x  t' W39.99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. m  i' {) g/ @9 u) Y/ v
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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