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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, K9 j( T+ T+ q/ U
控制转速的IC, SONY CX-032各脚电压值如图
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7 Z1 C. F9 l' a7 `/ H& s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 : c7 M( F) m" |9 v
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有人走過相同的路了2 X, U8 K7 M4 Z' X1 {' s
摘自   Obsolete Media - Forum  I! \0 h( Z: I9 j/ t" u

. E) s" i+ Q  n+ \, ?& V0 Qhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 4 t, u; L. l" b) O1 y
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
8 T" ]- T; V5 H& h% ^. X% KPosted on: June 16 2008 @ 01:43 PM
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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.# }- q" J, @( r3 p
A rare Sony turntable TTS 400 has the same chip used as well.- s, o: @9 q0 X9 P9 w
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The supllier on this link has the IC listed.% x# b* M5 T+ T! Z7 V+ ?
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.1 m5 ~: s5 B6 F( Y2 ~% o- f
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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/ ?2 |  E& l/ g/ ^" [  P$ HGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 7 v, w- C9 ]  }8 x+ w+ Q
By: RODALCO
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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.. C8 ~/ {- G; b7 ^  f
This will help all Sony R2R users in the near future as well as our machines age over time.2 v. z% t/ ?$ T" M! _

4 |- f% i. ^/ \7 }9 F8 e" mKind regards, Raymond
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  ~" Z& V0 N* W( u; @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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. a) A# ?! z) ?$ l7 c7 g! i$ r零件追蹤! t" s/ Z! L/ U$ w4 a+ m0 _
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 M, ]# p/ Y$ C  T; N# ^# v+ ?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5 a+ B! t* O) F) l( g) p
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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