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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 ( H# r% x0 L& r: U
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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。& R  k9 U4 _& Z& X! h& u
控制转速的IC, SONY CX-032各脚电压值如图' i9 o: T" W  u6 }
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!. s/ n+ t6 V( i/ t
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
3 ^5 N0 J9 h+ i摘自   Obsolete Media - Forum+ t8 Y4 ?, O, p# d6 T

3 l$ J( \& s, ~/ J! B& p5 X7 C0 o* rhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 6 S$ _) Y) n+ U
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-5587 C, z% _- n: f6 c* F) D
Posted on: June 16 2008 @ 01:43 PM
0 K! t2 Z0 C* k% Z' O9 W! Y: X6 D2 x- m# U2 pBy: RODALCO
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Content:
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; }( o" F$ o+ ^: @$ a# K4 W  PHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.  l. e6 P9 v0 u% i* D

3 I5 ^. J/ o4 W# x0 t6 @Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.. j9 h7 W0 k+ r5 m! i: n
A rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.( ?) S1 R) y0 L
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)6 T6 H3 t3 ?* n8 y: O* Z1 B
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The German Bandmaschinen Forum thread.- J; i8 v8 S* ]- N# o: b, d/ D
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM , {( R+ G* u6 E
By: RODALCO   o8 q8 _: j$ g& L  g3 ]
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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?4 ~9 l4 H8 V! ^% W

, O) {) J; @4 N. BI 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.
# E7 N, V& t* k8 K% o; |% C$ AThis will help all Sony R2R users in the near future as well as our machines age over time.- y$ Z6 `; Q( Y) Z3 [+ N
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Kind regards, Raymond; H- P0 b: P" I7 u  I) K
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: ?6 _5 i9 w$ ^- u" F有沒有用零件做出等效的主軸控制還要進一步追蹤9 w4 I8 G# p0 h$ L2 E
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http://www.globalsemi.com/productdetails.aspx?itemno=8750321001 t1 x6 q- E& ]
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$ R' H9 q+ P" j6 ]+ w' k) ^. W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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