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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。; ~. w5 ^6 i2 S/ f3 [
控制转速的IC, SONY CX-032各脚电压值如图$ d- ^+ m7 d- u9 Z3 e* K
22-1.jpg
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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
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有人走過相同的路了
  W1 D' o1 {8 Q7 ]1 Y摘自   Obsolete Media - Forum
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# x2 {$ m3 g: ihttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
, V% x' h. v: X' ]) ]4 ]5 h9 C* @* @http://obsoletemedia.com/geeklog/forum/print.php?id=20252 X' l  c# e3 U& d
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: T; r( e7 ~; m+ \, M" y# uChip CX-032B for Sony TC-558
% {0 Z: p5 M" w  r0 d: TPosted on: June 16 2008 @ 01:43 PM
9 S) i# f4 W  ^/ }/ ^5 Z" BBy: RODALCO
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2 Y& M  ~& v2 l( p% [/ O# N) eContent:
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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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$ c3 p4 ~, c% ?# W5 A! L' e) _Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
3 S% _3 ^# P% }+ H3 t9 kA rare Sony turntable TTS 400 has the same chip used as well.* I/ Z+ q5 P  C# T

$ Z( F' J/ |( @1 HThe supllier on this link has the IC listed.
- P2 U! f& C, f7 k6 B7 M1 F" E& h, ihttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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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' d! w4 ?& l- P" Z5 Q7 K3 eChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
3 C; b5 n' x% }<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.
9 B6 \) z) S' t$ b" Y# jThis will help all Sony R2R users in the near future as well as our machines age over time.
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" V4 `8 r6 m8 ^9 R4 c, B5 kKind regards, Raymond) t4 x0 W0 Z( a, W

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有沒有用零件做出等效的主軸控制還要進一步追蹤/ L6 q% Y# Y: e# s

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零件追蹤
& C5 s0 `; Q# g8 J$ Chttp://www.globalsemi.com/productdetails.aspx?itemno=875032100: n& D) {9 w: X3 p8 t
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
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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