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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。
. m, j" `( t4 ?0 Q+ a控制转速的IC, SONY CX-032各脚电压值如图/ d: A! r6 r8 E9 w+ M
22-1.jpg
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4 {' M! m- u  ]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' W# {6 L4 X9 ~4 @* m9 v5 v
摘自   Obsolete Media - Forum: t5 Y: J0 j5 u  }* C
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ( V) k+ @& x: B) k
http://obsoletemedia.com/geeklog/forum/print.php?id=2025& G. T/ m5 q4 B2 V/ P4 Y
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Chip CX-032B for Sony TC-558
! a2 ]$ v+ H/ g6 wPosted on: June 16 2008 @ 01:43 PM
8 `' c9 e3 V' nBy: RODALCO : T3 B; j" p& E* g! z8 ?
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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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" C6 j4 C# }7 t, ZLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
# d& S2 B8 b7 q4 GA rare Sony turntable TTS 400 has the same chip used as well.: q5 B7 W% V: n  Q& i+ A% t" P! D

1 f) x7 n/ a8 s+ x* VThe supllier on this link has the IC listed.
7 \* Y$ q6 t; T! \! ihttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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' `; p9 Y# Q8 o4 G" K0 L5 @. c% ?The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 ?1 W! a4 i" U" j6 d  q
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
  l1 m+ x$ {5 c+ J% ?By: RODALCO   P/ O4 k3 C# k

' K- @. U- R3 k; _% S8 e/ m' VContent:
/ r0 ]9 ]' W# [  x$ K- M<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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$ m/ _* U7 ~/ U/ b; [* [5 TI 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.
. V  l  n9 z5 n% oThis will help all Sony R2R users in the near future as well as our machines age over time.: C3 m4 l/ d- K/ D

& }1 X* a6 B& M0 e2 vKind regards, Raymond
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8 D. z) j. J  ~% R有沒有用零件做出等效的主軸控制還要進一步追蹤: n+ w" F" E* L& f

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零件追蹤
4 B, b1 w6 b" ghttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
# g: |7 F! d( j( ]! u* G8 F" j39.99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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