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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 6 x6 A) i, t  @: Y1 ?
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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。
5 s, P" o9 D0 r3 j控制转速的IC, SONY CX-032各脚电压值如图
1 t) v3 _: ?- ?3 W. o( U 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!
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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
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, W$ i1 J/ M/ z# V0 F有人走過相同的路了' y5 z# W2 u7 {6 o- i- a) z$ J- K+ |
摘自   Obsolete Media - Forum3 a. A: P: V% D8 |/ k

: C# H+ ?* k: Ihttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
, C( W! Z& k6 N, j6 N) u. {) ~http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558) O, h. ~* `  f& E
Posted on: June 16 2008 @ 01:43 PM + b" z- W* ~4 E7 K! Z7 {' K
By: RODALCO 4 i8 [/ K/ @: \$ X! a

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( }+ i3 c' a2 B" q- ZHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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( O8 U4 e! j6 r. E7 y" c) Z' CLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
, t" F7 t; F2 f5 `3 \8 T+ |, @, [A rare Sony turntable TTS 400 has the same chip used as well.' S" Q5 u- W$ o
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The supllier on this link has the IC listed.
8 u) O) w, y$ z5 v, d8 x& p9 ?http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)) L6 a. l) ?+ e6 H+ k* a' W
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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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Gru�, Raymond6 P5 o8 O( G/ t3 T

& ]5 q/ _, n& p; L# {3 h; MChip 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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. T- D  \; r2 E' ^* W* vI 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- r2 C# \. T- EThis will help all Sony R2R users in the near future as well as our machines age over time.1 S8 E" _2 \* l3 g4 Q

8 K; y" [( i1 u0 jKind regards, Raymond
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/ f9 A+ X0 t" u7 T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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9 y5 Q# C( v2 T; g% l8 Y5 G% Nhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100. ?+ H5 M" u, L' v; `
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+ G" F4 i( w! q* k& y* ?. G9 O
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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