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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 " h. G! f' ~& W$ u* @  @2 ^
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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( t1 W- U) @( E控制转速的IC, SONY CX-032各脚电压值如图
' y1 j3 l& P: [. L7 r; e) @* | 22-1.jpg 2 y+ _/ F6 Q( T' H1 H
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!! ]) J. w4 S1 B( |( }9 h( k
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 * z( ?9 {% Z5 T" ^( X! H

' d9 V/ ^8 u3 a4 Y8 c( g9 }) Q有人走過相同的路了
% V  l/ t8 W$ r摘自   Obsolete Media - Forum
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- C# a# l5 d6 }; j9 Qhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 $ e/ e, g$ s7 p" x1 G9 w0 k" o
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
+ e! n; q/ I. `7 j( J! LPosted on: June 16 2008 @ 01:43 PM
0 _2 a7 L% n, ?8 f+ \By: RODALCO ' ~0 }5 @, L& ]: m
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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.( o3 Y0 g' h+ z8 c) {: y
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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.
+ K% t& ~& a3 J% Q, U* @. y6 EA rare Sony turntable TTS 400 has the same chip used as well.
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: r4 r* Y6 {9 R. O- IThe supllier on this link has the IC listed.& `2 ^+ o2 j; s6 T
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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+ I) P- D2 i( ]9 O- Hhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 \$ a6 |- ~2 ?8 r: E% h5 \
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Gru�, Raymond: q, R" m' B( Z7 J
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! v+ K5 l4 z) m* ?4 fBy: RODALCO 9 o# d3 Y) W! B
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Content:
, A& n+ @4 b$ F; D" I<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?! F- }9 K) _2 U# E4 Z* m  T
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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.( O% ?: s) [& ^1 e* ?
This will help all Sony R2R users in the near future as well as our machines age over time.( l; g1 a4 n" Y
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Kind regards, Raymond
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: f; z* A1 G; G& r' d+ _. C9 R% l有沒有用零件做出等效的主軸控制還要進一步追蹤! ^( m& ^: r7 x+ n' e. S

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零件追蹤
) A8 X( \3 H9 [% S+ M. chttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
, {7 x/ L0 q9 ^9 ^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' c1 |; [2 r& Z, I5 L+ O0 o% V
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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