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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 & r+ c$ M3 n! `6 z9 E$ C) d
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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 O# d+ _, f* r% J& F控制转速的IC, SONY CX-032各脚电压值如图+ k( ]* @, g% E9 ?( ?  |% Y
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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 . v: H& v% U: b) C& U
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有人走過相同的路了
9 K: c$ O- F4 C摘自   Obsolete Media - Forum2 {0 ]3 `) t3 Z$ ?- \* R1 B$ A
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 2 H' R+ B' f, U  d+ M  G' {5 c
http://obsoletemedia.com/geeklog/forum/print.php?id=2025& V$ k6 \: E- Y) Q1 n- z

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$ A. |* u' I+ q; k' K' }Chip CX-032B for Sony TC-558
# n- \1 F3 u. bPosted on: June 16 2008 @ 01:43 PM
  J3 ?5 T- Y. ^By: RODALCO
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. M# r- s+ U% _Content: 8 b: P# N3 F' H; R

7 K; D+ M6 o! Z& n0 `3 E$ wHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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+ l* W& p6 i9 Z+ ~6 U/ S  _; CLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.& w! d" X5 V; O. `+ d* R/ E5 P
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.6 n7 Z% s  a( O3 s2 b' p- i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.( K- @" }! }! h3 u3 t
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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& E2 a! q0 M' k4 |9 ?6 l) BGru�, Raymond- M* ^) L) k" x1 _1 W/ a/ n

* N+ V5 h8 K3 f( {Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 0 k* {  h. u5 q% J0 \& `
By: RODALCO
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! Z8 q1 J. ^( k" b<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?. i* f5 H) w5 i. L

/ l5 n& O+ w% \$ q5 J2 z& n9 \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.
5 e. I, ^9 n  R% P9 g8 |This will help all Sony R2R users in the near future as well as our machines age over time." _- d: e, h- x, K+ @$ o2 y

% w5 c' y0 U  V2 cKind regards, Raymond# |0 r% T5 |6 L" R
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5 i! T% d& ^* z) Y. D有沒有用零件做出等效的主軸控制還要進一步追蹤7 q6 W5 m! O! M/ U

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零件追蹤" e8 B4 n  {9 i9 k8 G
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
4 M8 S" U% a- C  L( \- ~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* N$ H" r& n* Z6 d9 ~
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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