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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 0 n% z  f. l6 ~: Q4 g2 C% Y) }/ q
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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。
2 X; ^4 h! s1 Q% V: ]5 }控制转速的IC, SONY CX-032各脚电压值如图- _; m6 H, C: R7 }6 P5 w1 Y
22-1.jpg
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!6 ]" D- j3 t- m3 Y% r& |  S
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 ! W0 M1 d/ y5 Y" s% X) O% f
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有人走過相同的路了
, I8 [2 u4 M, L, w( {1 {摘自   Obsolete Media - Forum
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# h# w5 H4 {! nhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
% C  o: V$ J) g7 k4 zhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025$ ]/ t, @: T: \1 o& l0 Z% N

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Chip CX-032B for Sony TC-558
( X; v9 v& k1 G0 M$ n. _7 {Posted on: June 16 2008 @ 01:43 PM
* H4 L# k" m* R6 z1 @/ K! m$ r5 m9 W) IBy: RODALCO
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: s% g# |# d$ eContent: . z) E, C* {% t3 r  G

' n7 h0 ^% G% I$ q: O& WHi, 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: p4 e  L5 ~& F- d- V9 oA rare Sony turntable TTS 400 has the same chip used as well." _, J& q* l# Q
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The supllier on this link has the IC listed.
! y' {0 z5 m3 ~# o7 zhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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" C) |! n$ i4 G' ]7 ]3 z8 a9 MThe 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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4 J6 s" C% M; L. f% o0 e3 S+ CGru�, Raymond" V/ U2 |8 C4 t0 K- Y3 v

( M- T5 Z: p5 C* x- tChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM " o5 `' |) h9 S* w% w( ^8 H
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.' ]/ T. R& O( R! q- X3 P2 t3 b8 O" m0 Z
This will help all Sony R2R users in the near future as well as our machines age over time.# D! _# W/ h% a" F

7 `9 e2 V/ Z/ E! A6 t( T) p% VKind regards, Raymond
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( R3 u; q- L! j3 U; O! }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
) V5 n. y0 p, h. |( n0 Ehttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
) x" H6 g; ?* b7 h9 e39.99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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