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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。0 g. Z' L; P/ o0 U; w, A
控制转速的IC, SONY CX-032各脚电压值如图1 w) J; `: {6 i$ m: a# \
22-1.jpg
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6 n% Z. V4 e/ l3 m4 j) a" i是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!3 l3 h# k. N7 R" T3 ]
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 , M3 e& ~, I% l. [' Y& V3 q

- {/ P; L0 v3 C$ D+ {. k有人走過相同的路了9 D7 L2 J$ a0 D
摘自   Obsolete Media - Forum; M& @+ v! @5 X2 @

$ C( t8 z" h# ?% W" y; Nhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
/ V! I* L8 |% R! Q2 z9 ^" k8 D+ K# whttp://obsoletemedia.com/geeklog/forum/print.php?id=2025( t, r% X% ~5 D6 g' `% v

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4 Z6 N/ j2 Y' x6 q: D. {, ~Chip CX-032B for Sony TC-558
1 B" q3 ], M4 H- L8 A* q4 yPosted on: June 16 2008 @ 01:43 PM
0 J+ V( {- P3 t/ e" yBy: RODALCO / u- \8 O9 {) {/ A1 M; b$ e  w
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.2 V+ |1 T6 |7 l; z
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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.
- S+ n" i- ^  W0 _% ]+ jA rare Sony turntable TTS 400 has the same chip used as well.& p9 z+ z0 f& ?; y0 t
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The supllier on this link has the IC listed.6 j: }# [% }2 ^4 A6 A# i. K
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)  `2 m3 W0 a* B/ ]
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The German Bandmaschinen Forum thread.% v" k. q3 }7 ~) c4 H: n
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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" I& [& A1 d) V( xGru�, Raymond
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+ y8 ?1 c9 ~' M8 W' ~9 Q) q; sChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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<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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4 t9 Z# E/ f9 E1 v) l, ^2 sI 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.3 ^3 O% G0 O3 V3 C! C
This will help all Sony R2R users in the near future as well as our machines age over time.$ E! Z. n( N, m% v

# f' r+ c2 ~! f8 {& wKind regards, Raymond% C' m3 E# A/ U' W
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( g1 r  u  {0 q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
' l: P. f2 Q% `6 X# k' ahttp://www.globalsemi.com/productdetails.aspx?itemno=875032100% p3 W: n, Y% R; g) ], r5 c
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  _. u  [9 g( b) [
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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