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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。, t- a  ]3 x" I6 F: h
控制转速的IC, SONY CX-032各脚电压值如图
7 I" j2 Q2 q# ?; ? 22-1.jpg + r6 F* {; |8 b  _) w; v9 h

5 G) ?. m! c! k4 Z6 p7 q是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!8 E$ G9 g2 B) y3 R6 b$ `- ]
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   z9 g* r4 ^; k7 U( j/ `: z
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有人走過相同的路了
6 R0 O" N4 H  T  X6 q: _( k摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
! Q: d8 a# w" C# Mhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025' f: H4 n6 f( J2 ^& g! n, j) m" t

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) c% U$ W) U$ ^Chip CX-032B for Sony TC-558
6 P) X9 M* q% o+ c2 KPosted on: June 16 2008 @ 01:43 PM
4 D' e6 I3 R. c2 ABy: RODALCO : u" {6 F# Z  Y4 K' M% W
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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.7 N$ ?5 Z* M( b: a3 e

+ G& l. P4 n* X# QLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
0 @8 S1 k/ m9 x/ aA rare Sony turntable TTS 400 has the same chip used as well.( N4 a: {  {: }4 j2 L& G* l% i& z; E
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The supllier on this link has the IC listed.
1 B# }0 C) N, K  v. w. bhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)/ E4 j1 e% G+ K# F

8 C# u  m6 H& ]+ C1 GThe German Bandmaschinen Forum thread.5 Q# m. o+ H& A2 e. c% T$ h

0 m" C2 |! \2 N7 e# d0 Thttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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" S9 r* y# M7 R, ]5 EGru�, Raymond- F5 r3 K; r  r
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 7 t, P7 o: n' p/ [; H
By: RODALCO
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Content:
2 ]& h! v2 p6 a, w<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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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., {) P* F* O& s7 i4 A$ o1 K
This will help all Sony R2R users in the near future as well as our machines age over time.
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4 u7 h" M9 A; R  DKind regards, Raymond
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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
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7 |+ e& ]2 ?9 \零件追蹤
7 [# R/ \; x2 D/ r! }http://www.globalsemi.com/productdetails.aspx?itemno=875032100& @$ `; i) h$ _6 s
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% H4 [- T$ g" |% w+ w  Y
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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