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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 9 ~4 M4 }$ n& D8 R6 h& G9 A

0 v' M/ x+ i5 b) g( Q6 }2 r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。
% C' [$ d* F. V& I+ e( w控制转速的IC, SONY CX-032各脚电压值如图) X+ F, Z" g" z" L6 E! m4 L  H# n' \. e
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!& F0 E5 |" m2 F( V5 _1 e! j0 r; D
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
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有人走過相同的路了
8 D' P' E0 E" x( S" `( {' n0 M& c摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * k0 m2 ]; u! K0 v: l
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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% q) w1 |# W* @Chip CX-032B for Sony TC-558
' s3 B2 r, C, z6 g4 jPosted on: June 16 2008 @ 01:43 PM
) @* J7 W! t5 ?: [9 U; DBy: RODALCO & e+ y9 L7 ^0 `9 b. z0 y4 L

0 }* n( ]% _: m' H3 R( t4 bContent:   R! g9 n" I  b$ j& b: _
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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.
2 d* G" `0 \: c. i' p  n2 V1 b; DA 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.
) V$ {+ d  T: f" a* h: l! Whttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% C6 T& z( v- a/ }- b' c
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The German Bandmaschinen Forum thread.; v; z. K2 T7 X; t2 P2 A

* {  A1 @( p" Ohttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond  h; Z$ `2 V! u& F

. V* J9 t( A6 u6 {* \+ KChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: 7 A: C- R# `- g: b
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?: k$ x) y8 F! n9 E. ^- Q

8 |% x" ?! d' F+ OI 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.  ]8 {1 x+ m1 P# Z
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond
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" |9 c* z' z6 r5 v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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零件追蹤2 {  Y" }0 P8 E; L# M
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
( g; v6 D4 G* {- A) C" P39.99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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