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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 & x3 N5 g  T+ C

0 T7 D; C" D7 H5 o0 x' ~: N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 ~# D" P- w: {4 M/ h' L' x1 p
控制转速的IC, SONY CX-032各脚电压值如图
7 j3 ~, I; R* } 22-1.jpg ( h- o  S8 ?0 z/ g2 C/ m) `  G

6 N! o( d  @2 }是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* A( [  \7 [" h5 W
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6 o. T5 l* \0 v3 p
摘自   Obsolete Media - Forum
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  i2 u7 p, o' m3 Dhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ; v1 t# f) v* I2 `$ G; L
http://obsoletemedia.com/geeklog/forum/print.php?id=20253 K+ E* d/ S+ b& F: e2 l

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Chip CX-032B for Sony TC-558% \& _" p- u. E& n
Posted on: June 16 2008 @ 01:43 PM : V* x  z; i+ M5 u9 ]1 L3 l# x
By: RODALCO 2 i0 K6 {1 Y  `/ q
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Content: " l' w% x6 q( A6 L/ V
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.+ A* e1 x( O5 y4 T/ N
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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip./ u/ i. g0 Y- x  b6 x; l+ R
A rare Sony turntable TTS 400 has the same chip used as well." m# ~& F' N8 Q. s' u
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The supllier on this link has the IC listed.1 s  D0 v5 u- W6 W! \- G
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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0 M- P8 Y: t1 [9 R( e1 HThe 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�, Raymond4 @1 R- }) B. X# j% ?8 q, P! k
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM * E1 r, k" I7 M, E5 X% ~7 @
By: RODALCO 1 W. F% f& C4 `9 t1 _3 f

9 I! P- o$ i7 l! n+ Q! MContent:
# ^; u0 L( l: P, D- @  D2 c) H<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?; ]# u- H9 U" H

# h4 k' ?& l0 a% @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.
7 @9 \& K; [% Y3 a; jThis will help all Sony R2R users in the near future as well as our machines age over time.  Y( ^4 s5 U7 R4 t+ s- f) o
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Kind 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
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零件追蹤5 n8 q  U: [9 T3 i
http://www.globalsemi.com/productdetails.aspx?itemno=875032100/ L+ p* |- o+ z6 U8 D6 _$ U
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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