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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。# ]7 {( Y: n7 ^* ?) z: `
控制转速的IC, SONY CX-032各脚电压值如图
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( D+ g% p0 Z, N% _4 e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 % r) a) c1 i3 [

, j$ N/ Q2 Q/ T  _" i6 V$ b8 q有人走過相同的路了
& k3 i! ^+ f, g! w1 n摘自   Obsolete Media - Forum
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: S/ S8 }2 F& Thttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
. n1 Q9 A  i) \( ]; ?) Dhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025( ^- s/ r$ K7 O* _
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2 L; u* ^' S) v7 k4 K& ^8 hChip CX-032B for Sony TC-558  ]& W$ S% Z' S; @
Posted on: June 16 2008 @ 01:43 PM 1 Z2 S8 T3 D) h4 A0 @8 G7 z
By: RODALCO : T: k. m- |  k/ Z
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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.2 K; ^3 e6 h1 o  o& o
A rare Sony turntable TTS 400 has the same chip used as well.6 T( e' T% L# {' W% w5 g/ m: e/ k
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The supllier on this link has the IC listed.+ K5 Z; D; a' V9 T
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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* f- f; p" x* x: A/ [- N: PThe German Bandmaschinen Forum thread.9 K% F$ {/ F# L& H& [- S4 J+ l! {

. w) R" W9 l8 W6 t: Thttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效). ?8 q  H) k5 O5 k1 ?* X
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Gru�, Raymond
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8 {$ i5 d+ m. J: y9 u1 mChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
  T0 d5 c6 K  F+ y! t( cBy: RODALCO
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Content:
; E5 ^) o$ k- r: Z<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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- S' q: w5 e9 z* K0 {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.
6 z8 d8 G2 S6 YThis will help all Sony R2R users in the near future as well as our machines age over time.7 s  G1 \6 q/ ?2 T# t2 h
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Kind regards, Raymond0 X3 r+ @1 l: ~+ `5 d1 p

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% k: E* K5 l' B6 p6 B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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零件追蹤  Q4 P- n, m8 Z4 ]' [
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
. l$ A+ ~- v2 @' C7 V39.99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) T7 j) X! m! |, \
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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