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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。
6 T0 q9 ^, g/ C; j控制转速的IC, SONY CX-032各脚电压值如图& e% V' D/ w) l; e/ |# _2 s
22-1.jpg ; d5 W" N0 j2 d6 K0 a. h+ K3 G

4 D* N$ Z3 w6 Z4 \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 * V& I" c6 G- W0 T: @2 F

( C% `) \+ v( _2 n" _有人走過相同的路了* M' l" q  F) a, q$ v
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
9 m4 c. u0 Q7 O8 Z8 D6 Dhttp://obsoletemedia.com/geeklog/forum/print.php?id=20259 M/ p8 i0 p5 w9 v/ E

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Chip CX-032B for Sony TC-558
7 e# x% X- G/ O4 l/ j+ f) MPosted on: June 16 2008 @ 01:43 PM
) r0 K8 i: g8 a7 b& ABy: RODALCO
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Content:
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4 q% @$ u  O+ j7 _Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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3 Q+ q" U9 [7 {0 `Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.0 O8 ~9 e8 H" j: N% G
A rare Sony turntable TTS 400 has the same chip used as well.
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/ P) k$ Q" C) \5 r$ c6 u6 ]The supllier on this link has the IC listed.1 v& n& K& x; e) H3 P) C* G4 z
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)( j8 p! [% ?& `
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The German Bandmaschinen Forum thread.
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5 F$ z  E) M, i3 ]6 T* [0 K5 Hhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)1 v+ X( S7 n4 s6 v
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Gru�, Raymond
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; c# t1 Y1 _! f; @& U" WChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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.
/ n5 K6 ^6 ]& F4 x$ fThis will help all Sony R2R users in the near future as well as our machines age over time.4 m2 [; [4 l0 D+ K$ i" X+ s  D

$ T9 G! ^  S+ e. T6 G  A7 OKind regards, Raymond" D' f* b0 j9 C$ t1 h
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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& \- j$ a5 N3 w% `5 H3 f% n- g
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零件追蹤$ T1 n& g7 _% R$ n/ N$ y9 e4 D1 d+ {
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
9 X1 Q4 g) F' g1 v/ F39.99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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