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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。. p' U' ^5 P/ k' b* N! }
控制转速的IC, SONY CX-032各脚电压值如图& `4 [% w' e" E# m, }
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' W, u5 |( @- Y5 Z6 @) z7 u0 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 9 W# a  C# j; K
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有人走過相同的路了. K. |' K3 d! `# `+ u
摘自   Obsolete Media - Forum
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9 p# c" s7 c' R7 u3 ^http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
5 o' u' g! @1 v) [http://obsoletemedia.com/geeklog/forum/print.php?id=20255 v& z6 L" c2 ?% n; o0 |. V$ e  g
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( |; X! c7 r4 R7 w1 ~2 H, iChip CX-032B for Sony TC-558
6 y( u8 x( a/ lPosted on: June 16 2008 @ 01:43 PM
/ g# @2 }2 P2 K3 k9 XBy: 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.
8 Q* [6 `7 `! z$ F( c6 H; Z( JA 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.
' }8 N) ~) S# {" thttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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; M' \6 z6 S# {5 D$ i, JThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)- `- K- n3 I) `5 k4 {

1 b( K6 P% C" ]9 c. F3 ?Gru�, Raymond$ Y/ [% c, S: J6 V2 n2 \

4 E; U! f- s' U3 C/ G& N6 }* cChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM $ Y6 O8 ?2 @! `
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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.
, k" n4 N/ B0 {: iThis will help all Sony R2R users in the near future as well as our machines age over time.& Q5 r8 e& m. Q( @' T5 K+ a3 z

  u6 S2 D+ i* m9 J- xKind regards, Raymond. Q4 j  j5 I& x( ^2 [

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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$ \# L: L- J! Q4 P8 b

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5 H* F  _' N0 e6 J2 G% \, m) ~, X5 p零件追蹤
# z3 Y9 y2 o- e6 G2 r" ]8 _http://www.globalsemi.com/productdetails.aspx?itemno=875032100* x8 r6 v5 N0 d& e  `, 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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