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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。% a5 O4 ]9 b) p4 B0 |% x# O: e
控制转速的IC, SONY CX-032各脚电压值如图7 n) ?. W' f7 B1 w, ^+ l3 ?
22-1.jpg
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' F  a$ ^; D( u: q2 y+ V是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!7 l, z! c/ x, d$ A# s+ Y, W7 }
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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) j# H% b; I% `* L+ X有人走過相同的路了
; u  _% S1 V) C+ ~& G) X0 Y. P摘自   Obsolete Media - Forum) z! z4 P+ W' E  r; U

0 p( d. w& a1 G2 O& g, chttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
* F1 O2 e& c8 D; h6 E6 s$ m9 Yhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
+ B, Y7 t/ O  ~% f7 OPosted on: June 16 2008 @ 01:43 PM
: _/ M; o9 Q2 G' J& l' y$ UBy: RODALCO
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! m3 C. t% h, H8 q5 y' b- ]Content: " Y# j& N, n3 m9 [; X! a

) p% t. Y+ `8 i5 BHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.  ]+ f* f6 W* u! t0 F) D

  P/ N, w/ Y# L/ v. b  q5 ALuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.; |; L* {4 I- k$ f; H# P) J6 X: `
A rare Sony turntable TTS 400 has the same chip used as well.% c$ v; s) `( S4 w( E
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The supllier on this link has the IC listed.8 w. h+ ?+ o9 P' Q
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)/ t7 F6 H' \/ j- y; C( R
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The German Bandmaschinen Forum thread.. z' o7 ?4 @; Y
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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' K& @3 }( T$ o: AGru�, Raymond1 r) c( {' p: v! G8 E. z3 w9 N
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ' F. }: c! u& O4 g. o. P4 K
By: RODALCO - b5 y0 B* J& y

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0 T' }0 c5 @, y" i7 l( k7 z* X<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.
' a$ L/ V7 j$ ~: }, E, o, RThis will help all Sony R2R users in the near future as well as our machines age over time.
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  F2 R4 p& A% p' M6 iKind 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& H$ W2 P( ^6 s4 m( P* }
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/ j! h2 W" p7 M, [零件追蹤* ^3 K5 m5 f- E( P. J2 E
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
9 q, S4 n8 y7 {; 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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