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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 ; x( X9 C) I) |
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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。
. j, T' U9 M2 `控制转速的IC, SONY CX-032各脚电压值如图6 I8 j9 m( K- F$ B' k
22-1.jpg $ J$ @2 ^. k; B

/ \% I! r2 R  w% S2 `是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' m0 T1 n& R. C: j$ 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 # M* Z' Q& `$ ~7 x7 z% H% x
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有人走過相同的路了
8 E1 H' w2 Z; i: M摘自   Obsolete Media - Forum4 m4 B* t' d' ~$ Y* g9 g8 j" }
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 0 y9 z. U9 h* a, l. {* |0 I$ d& x( X
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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/ B# k5 h: g4 Z3 P! q: Z! \Chip CX-032B for Sony TC-558
0 z# a3 `- ^8 F% wPosted on: June 16 2008 @ 01:43 PM
5 r2 K/ x, U: N8 p0 C# |By: RODALCO
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Content: 8 b/ }! u8 c" W

! o# u/ _& V' O6 VHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% C% v+ j- ~2 E+ W) P; [
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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.
# @* G$ B: F1 N2 W. o* eA rare Sony turntable TTS 400 has the same chip used as well.
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8 x; B2 E+ h. L/ |( ]The supllier on this link has the IC listed.! i7 S+ T6 n" g7 ]$ S! E
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% a: L6 m5 L: x. I+ N8 g( \7 F

( Q9 ]+ y3 N( q* m5 e! G: XThe German Bandmaschinen Forum thread.
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9 _- b6 @8 ~2 k5 Bhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效), |! A6 B7 d9 A

& v7 ?9 ]( [$ h" D1 xGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ) a- J6 w5 G; O/ H3 W# L0 s- p
By: RODALCO $ J6 c% C, X) V+ s

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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?8 \3 b3 F6 U$ z
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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.* o- u2 D2 ~; c2 w9 c
This will help all Sony R2R users in the near future as well as our machines age over time.( `1 {& Y6 {: e1 ~4 L" q' {2 ?
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Kind regards, Raymond9 w/ Q3 C- }! [& U  F' W
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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  }1 ]- H5 e: m2 Z3 {5 K$ w+ C, J. C

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零件追蹤
! l% Q& Y" f' p% I* rhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
; c0 N6 I0 W1 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/ D% u# K! n' z( o+ W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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