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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。( |& G4 T) E2 D! U
控制转速的IC, SONY CX-032各脚电压值如图1 Y$ M% J& y  W, L1 v
22-1.jpg
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$ O: c: W+ T" K, J( z4 r' a( i# @是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!
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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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* A3 |4 x. ^2 w$ r& @) P- N3 N9 [有人走過相同的路了
1 n; Z$ O! z. ]% ^' N9 n( h摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 , q8 g& P  N+ ^
http://obsoletemedia.com/geeklog/forum/print.php?id=20258 Z2 l# ?& j. x* |( r0 X

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5 }1 \# }+ e2 h& @8 ]! UChip CX-032B for Sony TC-558
# U7 q: t* _$ ePosted on: June 16 2008 @ 01:43 PM ) w: P6 L% O% c8 X2 x$ P
By: RODALCO
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Content: 1 S+ Y. C  @* _1 _, C. L) h

5 u  W* j! [' _* Z1 BHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip." Z: o! r! H7 ]" p- P5 |% Y: o

0 @' P: p' f+ G- w* d  V) cLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
; z+ S$ Y, s- z6 y# pA rare Sony turntable TTS 400 has the same chip used as well.- _- g; K( I+ W& L- q

1 C$ p* n4 W' Z1 F4 q' cThe supllier on this link has the IC listed.
7 k5 w0 f8 V# J2 e, }8 }http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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5 T! P! q& m1 C% X9 kThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)% J4 R& h7 j9 }, _/ ^
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Gru�, Raymond
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' B5 S5 ~  ?5 w7 R7 Y2 K; hChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # w% U- t7 S1 z  T) ]# `
By: RODALCO % i% g( N& h! q& _) g3 M
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Content: ; `0 n* w. a; m
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?* G5 y  F0 h2 |8 a

* L4 k7 z2 n  z3 U6 \. p3 ]7 Z  N9 \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.
9 n2 w9 b) L2 r- w- J$ rThis will help all Sony R2R users in the near future as well as our machines age over time., |* y5 O# Q- e3 d' Y( U# p+ _

% r- h, ?  U# F: e7 d6 ~/ Q( NKind regards, Raymond
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9 O+ [! s! D7 m* r有沒有用零件做出等效的主軸控制還要進一步追蹤+ a% l, x, c* _7 \  U6 ^6 F

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8 h+ l& S$ T& ~! h' A零件追蹤5 k. g8 d, E# s; w+ j) M
http://www.globalsemi.com/productdetails.aspx?itemno=8750321000 t0 j$ e: w) I  Y
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: G5 n- r4 {* G% }- {# Q( V
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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