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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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4 K, @: K- U$ a8 Y+ J; W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。# S# q+ G2 Z# ?2 I. q9 {
控制转速的IC, SONY CX-032各脚电压值如图4 H) m/ A5 W8 f4 p
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* n& F0 A( y2 S! F* ?9 U  N  C
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 ( d& T9 g. y3 b# `

" V5 ?0 r% e* I4 ~; k+ C; `& N有人走過相同的路了% t/ p! `' f" r) p
摘自   Obsolete Media - Forum# M7 y6 G6 s# `3 w8 Q2 L
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 a2 h; J: \- b: v
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
/ V& U' u% Y5 Q( J) r  L( gPosted on: June 16 2008 @ 01:43 PM
8 d) ~) N% h. A6 L* O+ D  `+ |By: RODALCO . X. z' Q( i) X' E/ u& I. t

9 u, ?5 F9 D/ X# Y! ]& a6 D1 f* KContent:
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# _- C0 P9 v! r* ]+ n. wHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.0 S% I, u0 S+ u. l" z& C

0 W) J9 {  [* n! M3 y% Z7 jLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
8 [9 q# j  {) R5 H" IA rare Sony turntable TTS 400 has the same chip used as well.3 R- e. w. ~* Y7 n1 N

2 p: w" o4 n* R2 n/ i5 k  J: b1 J; ?The supllier on this link has the IC listed.) ]  y7 _3 q8 @6 v( G
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)/ i! b1 K3 P* @$ N
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The German Bandmaschinen Forum thread.$ V0 d/ N* x, u: |% n

, d" X( I8 c8 B1 Y& \http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)/ ?3 \; A5 d; a

# y: o6 p2 E  c# K, q' tGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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?. M6 G7 [6 ~6 w/ d$ z

" o2 J: l3 d8 B  pI 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.# h: L+ D. [+ p* g
This will help all Sony R2R users in the near future as well as our machines age over time.2 p; s7 x8 k% s+ d& {

1 o6 Z% c: }; p8 P7 ^8 o  `Kind regards, Raymond  ?2 ~' |0 l" ~, u- s! t& c
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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  g( ~1 p) S1 n

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零件追蹤
8 h3 M  ~7 ?% H9 c9 khttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
! v' S& r" @. b; O2 r5 x, B39.99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
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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