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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
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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。& p- @& B: K0 d: i* I, F0 A: H
控制转速的IC, SONY CX-032各脚电压值如图
# ?$ R& j5 E4 F% v; C' W0 y 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!: W5 t( ?) [0 J* j! T5 K
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 ! a. V: q/ ]! o/ T  R5 Y  u
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有人走過相同的路了
+ U( ?) y2 B  d5 L# h! d: N& ^9 V3 F摘自   Obsolete Media - Forum& f3 X; B6 v: H, M: d' c! |4 w
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 / v0 j) a3 m/ ?
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
( v* {$ q8 M  W4 w1 M% K" M% ~Posted on: June 16 2008 @ 01:43 PM
- H1 z) ]1 z1 M1 z- f6 tBy: RODALCO
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.; v' {3 }/ P0 T4 v" |+ `
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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.
2 d2 C" n& h& e9 H1 c  |- @A rare Sony turntable TTS 400 has the same chip used as well.8 M5 N- _- z( f3 b
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The supllier on this link has the IC listed.  N5 V; ^7 i) k/ S* Q& ^
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)- E* _6 d6 S4 m$ R' g  ~

$ }3 N- R& w5 V" c( K) \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�, Raymond9 v, _$ \( u. S

2 X" Q3 M* o( h8 ]Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
( I* ], ~; J0 r! {$ V6 fBy: RODALCO
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Content:
. C. ~. Q5 v1 q# ~9 A" n7 s<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?( J  y( x3 x5 r) r$ D  r

: i' L* G4 V! t$ i! MI 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.
2 Q8 |8 y1 i. B6 G1 W1 wThis will help all Sony R2R users in the near future as well as our machines age over time.3 \( k# j" I/ \* t. b6 G  D$ a
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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' P! D" I( v! W0 a" P8 n, S( ~

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零件追蹤9 F5 w4 W9 {5 e1 q, s* g; D
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
' c9 W  N5 A. i: T39.99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9 a5 l+ d9 I8 w" f' u# J* D
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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