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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 9 {* L( U2 s# v; k9 z- z

1 \2 Q$ l) ]7 ]+ ]5 r+ [  W. W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。, I# i, |2 Y- a
控制转速的IC, SONY CX-032各脚电压值如图
% z6 `/ h1 a$ o9 Y0 b 22-1.jpg 7 t8 |$ T& A$ q0 O2 n; Q! V

8 R& X* R, ~  E1 m9 C' x7 x6 E是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!& T$ D; K! I5 Q5 c$ E
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
) M) B. u! |( ^1 Z/ v) Y! e( V9 y: ]& P摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 1 H* ]0 I  j/ ~, s9 y# d* v
http://obsoletemedia.com/geeklog/forum/print.php?id=2025$ n1 d* E) I4 k& E" D( Z  Q$ H
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Chip CX-032B for Sony TC-558+ n( D2 Q" N5 P1 s2 T
Posted on: June 16 2008 @ 01:43 PM
) l& U0 W& E8 g+ U/ g4 N3 U( qBy: 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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* V) Q/ C/ ~* tLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
3 ~2 |6 N5 n* i% d* KA rare Sony turntable TTS 400 has the same chip used as well.+ L+ s  @* o+ F8 b4 \( [* \
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The supllier on this link has the IC listed.  x  M. ?* F6 h) G1 Z7 J$ k  D
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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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0 f9 N7 q* D- b0 H1 O+ f, gGru�, Raymond
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* Y6 v; q* }9 @: G0 w. TChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 2 n7 |9 M; ~, b2 K  m2 O3 ]
By: RODALCO
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, \8 q( U/ j. S5 [Content: 8 r2 g. e4 ~+ S0 f- g: Y$ k
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?% B7 c, F1 j0 }( A" N/ `& |" I
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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.
6 w% D& j  |1 K$ PThis will help all Sony R2R users in the near future as well as our machines age over time.; f6 r( X8 `& h: s4 \

, W; n/ y6 p! Y& LKind regards, Raymond) M' F7 b* P% f) f

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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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, b# p+ C( U, T! R) ^. Z( y2 K5 k零件追蹤( t+ {2 h! R2 w, f5 t  o
http://www.globalsemi.com/productdetails.aspx?itemno=875032100/ m/ Z+ E2 c/ H: ?9 [+ `* \: `4 o) Q
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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