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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 ( V- a, Z. i3 f6 f: K: o/ c
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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。' [, |' ~& G) r: r
控制转速的IC, SONY CX-032各脚电压值如图6 L; Q  o3 G4 |/ v
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 , D% E9 O% y, g1 l" \  N1 [
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有人走過相同的路了
6 q* a. V# D' Y4 Q$ z摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * U3 {! Q- z' c: [) Q; n
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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7 N5 o$ q1 p- A( ?, lChip CX-032B for Sony TC-558, b: b; T  V5 x7 H3 `6 u
Posted on: June 16 2008 @ 01:43 PM
+ d1 C9 j0 M/ ^1 N: fBy: RODALCO
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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.
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, G1 O0 z) W/ h; t! b7 d% l" d0 JLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip., {% Y& w3 E# n5 @# t# s
A rare Sony turntable TTS 400 has the same chip used as well.- H) u) ?: K, x6 m4 e  Y& N
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The supllier on this link has the IC listed.- @' m& k( Z* E& e# w; A" J
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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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond5 y9 W1 Q. d+ b( u/ i3 J! @( [# Y

6 h: p! b: H0 \" u. ~& hChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
; e8 d7 }, i4 @7 D) Y! H<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.
! f3 o1 A7 |3 k3 ?7 oThis 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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有沒有用零件做出等效的主軸控制還要進一步追蹤9 L6 K' _, F" p' H4 |& }# h

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零件追蹤
) r1 ^" b2 p$ ?! k% Ahttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
* `7 G5 B8 r- w9 m3 v( e39.99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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