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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 ( `& z7 x# O" k  t
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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。
4 ^( k; R3 p# o控制转速的IC, SONY CX-032各脚电压值如图! Y$ @3 H. K2 _0 w! u! W
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!8 ?; f# i; {& V) n: 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 8 b1 h3 y1 m$ N0 R0 d
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有人走過相同的路了
* i! L' y( d# u! ]2 n6 B$ M  r5 S摘自   Obsolete Media - Forum
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9 i5 @' E$ Q) Z8 S; c: vhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 - u1 k) |* x$ W1 E3 a2 _
http://obsoletemedia.com/geeklog/forum/print.php?id=2025# A9 H) b+ l$ m: f* a
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Chip CX-032B for Sony TC-558
- i/ z7 u6 Y( A  {) QPosted on: June 16 2008 @ 01:43 PM , I& H' O- G, _& {
By: RODALCO 8 \4 s9 q: q. f

/ V, s) H3 S- z0 B8 ]2 VContent: 3 A. e4 Y, p* I" f3 m+ n

/ a5 L. t# H5 r5 `Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.0 \3 D( x. ?* M. h# P  v' c4 {$ P

; O0 Y9 _9 `+ m/ Q3 TLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.; o. U8 X, I5 I; t/ o' c6 l# R
A rare Sony turntable TTS 400 has the same chip used as well.8 P! v, ]5 e2 S. ]

5 p, I' r+ |0 B) V+ M+ M$ yThe supllier on this link has the IC listed.6 g. V) c* n, d, x
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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% G, B* s0 c% ?/ f. n' R7 }+ gThe 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
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 9 g- L1 c& s2 w: c' k. S
By: RODALCO ( u+ x6 Q; j- X4 C# e
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Content:
2 Q: C8 l# w/ ~6 ]: W% ]<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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5 Y) B, h: S* d% H% G6 r9 d) ZI 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.
) s( W. B2 s$ O& ?+ RThis will help all Sony R2R users in the near future as well as our machines age over time.
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" T! e, N6 @' H+ U2 g0 Q; _Kind regards, Raymond+ S/ d! {$ F5 B  j; u5 n
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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8 B( u+ y( {6 J
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+ E( ]) z7 U8 x( |" h) t零件追蹤% D$ f# p/ Z4 v' ?' g4 b& J. q
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 u  K1 a& o: Z/ J% i) W. Y0 x6 S0 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6 m6 k; g6 q3 ~1 l, k; @
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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