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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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! d) j% e2 F2 l0 P) w' v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。+ v2 e" M$ }9 o; Y& T
控制转速的IC, SONY CX-032各脚电压值如图
5 A& C; y& K% \+ w* N 22-1.jpg 0 S/ u' k' c5 B  [9 ?

8 f; @& j* U. u& C7 O' a+ A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
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有人走過相同的路了3 r' G- l' m, G9 {. M) [
摘自   Obsolete Media - Forum
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: B/ q6 i3 r+ a( G/ [http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
7 ], V: L6 A0 [% c+ zhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025- f4 A4 a8 L/ O$ A( Q- Y
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Chip CX-032B for Sony TC-558
1 H2 s+ q7 u; z! r: {9 ~( DPosted on: June 16 2008 @ 01:43 PM
. w* q& g* B7 ?( yBy: RODALCO
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Content: " j; Q: ^5 G" G
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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5 K7 n, l3 y7 M; B7 tLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.. U, L0 J. n. F1 p6 L
A rare Sony turntable TTS 400 has the same chip used as well.  T9 o  o7 }$ H$ i8 y* y8 Q

6 K6 w( l. N! w- t' O9 q# RThe supllier on this link has the IC listed.
: s* M4 D9 g5 n* {( v( ghttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.0 Y6 }: f/ ~( B* K, e$ `- w7 c+ Z
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)6 S) W9 u. w  l$ G
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM . n( H5 a7 V! \) V
By: RODALCO * Q, l4 d+ ?- \+ }

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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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& R* w& N' v8 L" JI 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.
& P( }6 N# y; w$ n! `) a( y2 |This will help all Sony R2R users in the near future as well as our machines age over time.
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% h3 \  a8 D# I7 o# H4 T+ QKind regards, Raymond& G% o4 U6 Z0 p7 m

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/ `% M) {1 L2 Y4 ?有沒有用零件做出等效的主軸控制還要進一步追蹤( ~# c' I; M+ p' x5 S5 [" k
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零件追蹤
: ^4 W0 I; u6 q! u9 ghttp://www.globalsemi.com/productdetails.aspx?itemno=8750321007 x' E, g' e: x' u' o% `
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) y! [* ]# Z  Z: K: Z
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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