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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。6 J! ^6 c( g1 \# @, n/ q5 w# k
控制转速的IC, SONY CX-032各脚电压值如图: Q; O6 B( H  t- [  z5 K
22-1.jpg
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2 \6 c5 u0 L. B1 d- ]" e是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!& o% X( L9 k- ~; I5 B3 f" j
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 ; U% N9 `5 ^( a! n: G% c$ L
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有人走過相同的路了6 |. B( T+ I: O, O- v
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
+ @- s8 t- i/ ]* z( J; Ohttp://obsoletemedia.com/geeklog/forum/print.php?id=2025/ L6 k% o9 J. ^

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" a. [* d: h( k* GChip CX-032B for Sony TC-558
- L: [3 U7 [" o' p* }1 N- FPosted on: June 16 2008 @ 01:43 PM + B+ R4 Q9 m! {& H
By: RODALCO ( H9 h( f: J  K( P' g2 n

) i% j7 ?" T5 ~- w; M9 kContent:
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. d" t) y# G4 p' o4 ~Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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* V' s' `% }# vLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
% P/ ~' a- o. K; V5 l2 JA rare Sony turntable TTS 400 has the same chip used as well.
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4 p2 V' t/ x# d) z4 Z; G/ q/ VThe supllier on this link has the IC listed.
7 @6 U/ ]0 f% S& b: c4 Z6 ihttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% Z. `0 Q& m/ ^; Y' H0 _  q# V
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The German Bandmaschinen Forum thread.) ?) R2 c0 t" o9 i

6 a/ `( ]! M. ]5 N1 Fhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)7 s. H* E) S+ g0 k$ V' c
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Gru�, Raymond
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+ x2 S+ S( p+ D' o8 T, N# Y9 ]Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: ( a$ d. W. X- j, X- k
<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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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.
# Q' Z8 _7 a" j1 xThis will help all Sony R2R users in the near future as well as our machines age over time.
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: c' v) Q% C" \; W( Y; ?: p! _( WKind regards, Raymond
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# H; |8 G1 K# N& C1 z, X8 W' i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
/ ]$ K. x- C$ A( @+ o* @http://www.globalsemi.com/productdetails.aspx?itemno=8750321009 {  p/ L: d% B$ M! N( k
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/ T2 _8 V1 G: S+ L  d+ W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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