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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。) Z- n0 H, q6 j9 \4 X
控制转速的IC, SONY CX-032各脚电压值如图
; Y+ ^5 T3 ?5 a; o5 |- r 22-1.jpg
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' ~4 p* x; G3 ~0 @; i# e是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!1 |% C. L1 V3 G* C6 u
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 * S; j& D+ m  ?4 [8 A+ x# m' Y9 ]+ q

( v6 }  E: c+ b) {# |有人走過相同的路了
8 o% m9 X" W+ u摘自   Obsolete Media - Forum
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/ G( e5 H5 f) G" b( U" F' H' jhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ! ~7 W. L0 d* z/ B5 o! d
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
- i' f! K% X5 V7 `Posted on: June 16 2008 @ 01:43 PM
2 H" h/ f- L3 N; z6 MBy: 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.  m. j$ v8 e9 h/ n/ i
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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.
; c0 j# U  w: VA rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.
; O- `8 o( q) B5 K/ V2 Hhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.  Q2 P, g0 H  Q

6 B" d) {. ]7 k+ w* m! a' Z2 F$ dhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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& o7 G3 w8 h1 h/ @Gru�, Raymond& y) Z( E3 _: m8 L
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # ^4 K0 r9 M. U+ ^4 q
By: RODALCO
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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?
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6 k1 Y1 q7 l0 a, |0 S6 w1 m$ ~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.
' d8 O9 ?! C5 Y) \1 _This will help all Sony R2R users in the near future as well as our machines age over time.
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; N/ ?" L! U+ R) S+ o( JKind regards, Raymond5 u% V7 d% s  A, d
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- J4 s, i3 G$ O  k% K* O4 \" M有沒有用零件做出等效的主軸控制還要進一步追蹤# n$ J0 S9 q; Y  T) |% |
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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
" |# `% n! `  s5 g. s+ Z$ a39.99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! q! g( a% [$ k! l- |1 }: i1 A
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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