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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 7 t6 U2 Q9 ^% {0 T# S+ g
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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。" M$ ~- @9 V- E9 _
控制转速的IC, SONY CX-032各脚电压值如图1 y% a+ C* B) w- u: s9 n& \& R
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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 7 C; P  _/ G/ j; M' i! i/ Z+ ]) s3 l
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有人走過相同的路了
& w9 T" h5 b1 N; y" [摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558
0 Z5 I$ v0 j$ m4 ]( mPosted on: June 16 2008 @ 01:43 PM
0 A  W! e8 u; I9 R3 }( _4 aBy: 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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2 U1 _5 R+ J; }* V$ |- C' uLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.# H8 {5 ~! ?: x
A rare Sony turntable TTS 400 has the same chip used as well.
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  ^% u+ C/ h# q$ TThe supllier on this link has the IC listed.$ K7 `" i. a, q$ U7 \8 t2 |/ @( y
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)' u' i, m1 Z7 Z5 c' N! l/ ~
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The German Bandmaschinen Forum thread.1 B- K- g& g7 T  f$ T) i
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond. U. U0 Z3 c3 |4 I
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
( s) V0 K) S. @<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?  u5 [6 f8 P' c5 e, K8 D- V( e
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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.
7 g" \; E9 [' s; DThis will help all Sony R2R users in the near future as well as our machines age over time.1 D1 ~  l7 }" f/ w' P8 T
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Kind regards, Raymond
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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/ b% n* `) l$ s
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零件追蹤0 Y: X7 k* _) A& e' q2 D
http://www.globalsemi.com/productdetails.aspx?itemno=8750321005 X9 a! d+ c2 q% l  `1 [7 J; M5 H% J
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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