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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 i! s, ^' I) Z2 V
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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。
4 x; q6 m: ?0 N5 V控制转速的IC, SONY CX-032各脚电压值如图, g- r# K6 {& X- f; d
22-1.jpg ! f' K" D8 z7 B  T

, V9 t+ x; ^' `8 X/ I' Q是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!. r; F. |" b+ ~% @- d
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 2 X- G" W# l$ ?1 u& t- A* W

5 i& O$ S# R* Q$ |, {有人走過相同的路了3 L# b, Q: C9 z% |0 K$ t
摘自   Obsolete Media - Forum. F: t/ H$ u% ^% d! b

- T6 D- t4 L( {7 j( Y. ]http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 9 I5 Y3 g4 O. }1 l% q
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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! {& j1 {0 u; H' H: U3 XChip CX-032B for Sony TC-558- H% B8 b; d5 r; U
Posted on: June 16 2008 @ 01:43 PM ! Z9 {+ X2 o6 r$ i7 T
By: RODALCO
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9 q5 _) X' v. k( A9 ~  h# A' tContent: * j3 J0 x8 I& j/ J; z; f& I

/ N$ g* \9 \: \" GHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.. }6 O9 g/ V+ Z$ f7 h6 ?1 h
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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.
0 L2 T; y6 Y# Q9 R# K, IA rare Sony turntable TTS 400 has the same chip used as well.2 D" b' O& y/ A

  b9 j* N) K# {* S: M6 FThe supllier on this link has the IC listed.
* W% x' o. X. L# z$ B' jhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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1 w6 C1 a. d3 C& N8 x3 h1 b# \The German Bandmaschinen Forum thread.
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3 ]8 u6 b, D; l3 n# ehttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)3 ]; k  W9 b6 x5 V

; I- j# z! t6 r  ?& WGru�, Raymond$ I/ F2 H' X$ a' Z5 i- K

% ~8 D* }( H4 TChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM % f' v9 `8 Z, m5 v$ e
By: RODALCO
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Content: , m8 ~: t0 u0 k% P4 Y5 \2 @# c6 K
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?% ~& l; S; ]0 h0 I
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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.
* X% _% q& H* n; }* OThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond4 Y5 J0 H$ d: Y& u! G# `

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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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# R( y6 j3 i, ^: C: |9 I# Y" j- A零件追蹤8 [; \4 }; N% p& t+ S" ?4 k
http://www.globalsemi.com/productdetails.aspx?itemno=875032100+ G2 U: t, a4 j  `
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) X& N( C2 Z5 W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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