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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 . I4 W1 }* e, o; R# S; n0 ?
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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。
7 j, z: X( a" Z控制转速的IC, SONY CX-032各脚电压值如图
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0 Z: R' G5 I9 M/ j1 h1 e4 K  x是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!& t0 d9 _8 h3 V% D- a+ a
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 % u0 M: P" o0 `) b1 h/ O3 E

1 Y( ^* C* r: s$ e- ]有人走過相同的路了, P$ W$ H- s; ?; Q
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
5 j8 K' y! l, O9 L( thttp://obsoletemedia.com/geeklog/forum/print.php?id=20256 U  z5 L4 _1 G3 {5 E( @

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/ v1 P8 O5 i, H9 TChip CX-032B for Sony TC-558% i. ^% f9 |# Y: @
Posted on: June 16 2008 @ 01:43 PM 4 B$ P! I, a. D( L9 D- x
By: RODALCO
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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.
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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.
+ I1 f) v; z  I. ^A rare Sony turntable TTS 400 has the same chip used as well.  [% d, e  D9 h& {& \
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The supllier on this link has the IC listed.( R; b+ m3 E% M7 ^) i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 c4 i4 |- [1 D. s) [7 j) f
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 6 `9 D0 I- A. V  |) F+ K6 _" }
By: RODALCO 8 g" g9 @7 \; n( b  A  P

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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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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.3 |$ H6 E- f2 `3 b8 W  ^3 E
This will help all Sony R2R users in the near future as well as our machines age over time.: U0 _: m0 H( b9 T+ s
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Kind regards, Raymond: x. O- a; T% u$ S

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7 i( j7 c: O4 L( p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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* g2 s" n2 V) Z) J$ z* A1 I零件追蹤/ C0 }, w2 U) M) Q4 v; {
http://www.globalsemi.com/productdetails.aspx?itemno=875032100$ Y8 M4 t/ I& d0 s
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 M) C" S9 W8 ]3 l, [
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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