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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 3 J4 l# c# W& y
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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。
. u  r0 x# X* {" P8 Z控制转速的IC, SONY CX-032各脚电压值如图" f: \: b5 M0 C  R
22-1.jpg
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$ A/ x# H6 s4 e- _$ T  \) H1 g" t1 _9 G2 a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 " }$ L  v4 r  V
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有人走過相同的路了
& s: [! Q* ~' n& Y% A2 O' l摘自   Obsolete Media - Forum1 F. k* Q; L3 }$ h" C6 h0 ~

! Y$ `" @* r( F: B2 rhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
9 s$ j1 A3 H) `6 {  d+ a( zhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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0 G! C: W1 g  J  LChip CX-032B for Sony TC-558
3 y7 Q7 g4 c, V7 b* A% ePosted on: June 16 2008 @ 01:43 PM
; E+ a  [' O) m5 Y- [By: RODALCO
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# [6 @5 I# U/ IContent: # J  P7 V# e% l# K4 I" y
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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.- O) k. }4 F5 V- V/ A3 r- X
A rare Sony turntable TTS 400 has the same chip used as well.% X, [5 m* C7 k5 _$ }: }

: L+ t  Q4 n8 }  @" M5 |  M% e6 qThe supllier on this link has the IC listed.9 z& y7 q$ |4 D* Z% S' K+ i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)( F* \& h- S, Y4 ~+ x% j, _" p0 S
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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- A2 \% g2 i3 f( G  TGru�, Raymond
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1 W( [; t/ L4 `1 R5 X3 qChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
/ H: v) ]+ i! H( jBy: 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?4 t% A# W( n; q0 _7 }+ z! `- X  Y# n

$ x2 S6 @" s8 R+ g  A/ hI 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.$ y" T$ t5 W8 Z
This will help all Sony R2R users in the near future as well as our machines age over time.
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5 _1 t6 W8 X, d. v% D* yKind 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
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零件追蹤3 v* _8 s- }$ o7 a7 \, E
http://www.globalsemi.com/productdetails.aspx?itemno=875032100! d, M* [  P# F4 \9 t1 r
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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