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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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* v$ u% j9 p/ R. \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。
3 Z4 k4 w/ P7 H/ q* {控制转速的IC, SONY CX-032各脚电压值如图
  n% F- i8 c8 U6 i. e0 a( j 22-1.jpg   L7 o  U, j9 n( f

& y5 `3 j( [* D( @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 # J5 X- I. v" u. I4 q& W( |
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有人走過相同的路了7 C( [9 f% H3 d( z' V
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 # F, }2 w6 e$ E2 L( E% b/ u
http://obsoletemedia.com/geeklog/forum/print.php?id=20252 s+ Y3 w2 E1 F3 _1 b

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Chip CX-032B for Sony TC-558& h  q" d0 P+ D* q7 l
Posted on: June 16 2008 @ 01:43 PM 6 W8 G4 j3 c* l# T# k6 T1 \5 t
By: RODALCO / k0 C1 [3 I2 y* j& M' @- D' i. y
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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.6 ^; G* I* _) {' [& @) s6 o* f

6 n, g% l7 `, w) {Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.* A: D& Q7 ]; V+ b# _4 w: R0 w! k- s
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.
( G* Z! d( I: G0 n$ S, |http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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( X) s- K7 i+ S* e( z* cThe German Bandmaschinen Forum thread., `, y( w% p: P' v' B6 K* u5 K

% a1 x$ B) r& y# khttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效), r$ @6 X1 i( Q' p4 n' }+ t1 f$ F
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Gru�, Raymond
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6 o4 J/ T; |7 b; [6 yChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM - |9 y! g# W) }8 Z; g* A. m% z
By: RODALCO
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Content: + D: d/ T9 }7 V( ~" V
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) B9 s2 ?! n6 |9 _, R2 C
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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.
) n0 ^1 ^3 o6 `; i7 q% xThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond
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. u9 n- n9 ]; o) K7 C, ^" Y: r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( N: V5 a* @8 o! J; y
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 V5 D) H7 g- Q( C$ T4 U. K0 ]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# ]; ^8 t: P4 z$ m& C9 P' X
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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