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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。% X$ m& {  @2 e0 \" T" ?: A1 b
控制转速的IC, SONY CX-032各脚电压值如图
9 H/ {9 m5 Z7 h$ c8 u 22-1.jpg
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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 8 r& H+ \' f2 B; g
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有人走過相同的路了2 N0 T3 F* C: h+ g) s
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 1 m# X8 g: f- S
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
% k: M4 M- ]( L" a3 T; QPosted on: June 16 2008 @ 01:43 PM
5 Q" J  I6 q7 P, j( e  m# _! p6 aBy: RODALCO & G! k# m4 _+ w3 C& P; a

/ J7 j. u: [& {& S8 P" Y0 j/ j6 ]) G- ^Content:   S! D  l  f$ K7 q, E
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Hi, 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.
7 B5 h* B( w# [$ }1 J* HA rare Sony turntable TTS 400 has the same chip used as well.! t( c4 b2 `% P( V$ }8 w; r

# e, B2 y4 r6 X3 `5 {' DThe supllier on this link has the IC listed.& j- ^. f8 k. D
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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6 T! [- d( }3 P: _1 s- Shttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)3 G! B6 ?  w7 p9 d- ?! J: \) Q
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Gru�, Raymond. h1 W+ ~5 d2 c! d+ ~. i3 U

: g/ W- Q* h' L* vChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM : M7 j1 O$ h+ a
By: RODALCO ! E# O8 x: \* k8 Z

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' _; d( w# b! j- V. s+ w8 N' a<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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( U% _6 q5 v/ p6 B8 \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.
+ x5 v$ ~1 c8 f! ^& Y) XThis will help all Sony R2R users in the near future as well as our machines age over time.4 s- `( ^! f* `% p4 R* Y0 Z

( l( ?$ _# v$ V; o7 nKind regards, Raymond
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* i5 ^3 `7 v0 m1 N3 Q% X# K有沒有用零件做出等效的主軸控制還要進一步追蹤: c) M2 a$ ?  G, b  S* M

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零件追蹤
4 z6 p0 [5 @3 {1 ]; O4 Z& {' m- N5 ], ehttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
$ L$ p' O3 h1 A0 J4 N39.99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+ g- {" F0 D1 W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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