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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 , O, n; [5 `' q5 N: y6 @* e$ F) ?
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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。9 _2 J6 {; m* n
控制转速的IC, SONY CX-032各脚电压值如图# m, z( J9 J5 {' G# Z1 |& P! E
22-1.jpg   Y: U3 c$ y- X
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' A3 n. F1 L2 p- Q* M+ G& F
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 & v2 A. X  `  a& i  C
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有人走過相同的路了
# D$ @) L& G- S$ d# o) G摘自   Obsolete Media - Forum
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% S! Z5 j7 T8 S) P' V" @http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
) i: S% ^* J* a( v+ s7 W' yhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025$ C8 x" l: \/ X2 v& ^

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Chip CX-032B for Sony TC-558
+ w: L: ~4 I6 s0 U* b. ^Posted on: June 16 2008 @ 01:43 PM
4 x5 J' t' s+ IBy: RODALCO ! O- O7 P; z; ?: z, d

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; |# _8 z: S( u( cHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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. H7 h2 z; T; v8 s: T. _" n4 t9 ULuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
* }; D0 _: j, j* u0 BA rare Sony turntable TTS 400 has the same chip used as well.' j& P+ O3 B5 G. ?% N8 `5 E% \% _

. i+ W- ^+ \* N* K! NThe supllier on this link has the IC listed.# b2 E. j6 w. _0 I0 i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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�, Raymond; J$ s) N% X/ S' c: ~" `
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
# N2 }, m9 f# H# u* Y: d& QBy: RODALCO
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Content:   A5 D  E2 {2 x: }
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?( G' ~6 D6 c% {2 O$ ?% o# g5 L
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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." y! p+ f8 `( _* |* A
This will help all Sony R2R users in the near future as well as our machines age over time.
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4 e3 x3 n  ^( o: b' p  fKind 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* y: p$ G8 }( Q: S/ k

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零件追蹤
& L; I1 @" N; h+ Qhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100+ a0 k- \/ U$ G
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
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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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