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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 4 F. w+ M, X' V5 H3 q( [
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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。
) U( A; H+ f: N控制转速的IC, SONY CX-032各脚电压值如图8 ^# s9 {  l1 d2 F/ b
22-1.jpg
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: K8 Y1 b% K, d5 _! y是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!# G* B" ?* \6 U4 D" }
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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, ?9 \7 f- {' L  ^有人走過相同的路了
3 w4 {9 O2 u% }5 W! H5 E摘自   Obsolete Media - Forum  e7 \! N9 h- v) W# x7 \7 _  c( K& W

* ?7 t0 E9 R& y" j9 {- ^http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 , {! {" m6 ~* @6 N. a3 X% A3 w4 Z
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558. u1 o, K" t' L2 E6 |0 m7 O
Posted on: June 16 2008 @ 01:43 PM , f* A% B7 D' o. M
By: RODALCO " ]. U5 [" a! ^0 N% @6 L; ]

9 H& o/ f: b& c* @+ V, M! DContent: 4 p8 ~' \* k5 Y4 P3 N

3 l4 _! T4 O4 P! M0 F8 w5 x2 wHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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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.- o  F) p% b5 k3 J3 N( n! {5 A
A rare Sony turntable TTS 400 has the same chip used as well.
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  D% C- n3 k+ d' a9 j+ }: c: QThe supllier on this link has the IC listed.+ h  ^' o: ^8 T
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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8 z7 k5 H4 }/ _. e( y7 nhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond& n; l2 `, h* q1 G( ?' \
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 9 }6 \! [/ k' u/ l
By: RODALCO
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5 J( K0 J3 D1 ^+ G% x  ZContent: ! y2 l) c8 n+ G6 I' G
<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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$ o% _, T5 `& _  A8 `" FI 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.( p+ C' t+ N% o( H( {5 n; T$ l
This will help all Sony R2R users in the near future as well as our machines age over time.
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3 l. \( a, B/ M: a- q  ZKind regards, Raymond
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, J! b/ ?8 g  E" C有沒有用零件做出等效的主軸控制還要進一步追蹤6 ^1 U- d  U; r
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! }+ {" E0 _* t+ W5 V2 `2 @零件追蹤
! Q& v- Y  I, b: @, }' o" khttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
( X9 J7 W1 P9 E; u9 ^' V39.99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0 }: M; N: ?- m( C0 f$ V9 C5 e
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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