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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 ! O6 ^% Y: A0 y2 i) k
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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。3 ]+ D- ]2 \; o1 |$ B
控制转速的IC, SONY CX-032各脚电压值如图4 ?& T. X9 ?& f0 P6 J
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!2 W% R# E, r$ ^; A
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   ?: I- |/ L8 r1 a
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有人走過相同的路了* O! U0 I; V) X$ S
摘自   Obsolete Media - Forum
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) x+ O  C8 W. A; W7 X5 G# Ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 % I* f# H# n" p+ }( x
http://obsoletemedia.com/geeklog/forum/print.php?id=20259 b# W$ f8 X+ F4 y0 A, z

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Chip CX-032B for Sony TC-558
+ l3 U5 y: q8 u2 v; z! U% mPosted on: June 16 2008 @ 01:43 PM
* }* j4 R! e  r- P0 XBy: RODALCO
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Content: . q& O& Q6 f. p! y0 ?# a  o- A

) }* J3 W* H# _( w( rHi, 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.& p& {9 V# r% G5 N" R  V  I1 ]. Y! C
A 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./ o  y# T8 [: J5 j: ?0 j# O7 g
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)4 Q4 K8 e2 V! r4 I

3 {- ?5 U( L# }2 f. `The German Bandmaschinen Forum thread.0 `5 x+ G! y% O+ a/ z& Y8 f
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond& H6 O; x/ T! e" \& V
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 C5 |2 W  o# g7 T/ qBy: RODALCO
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<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.
; L- z1 A' K0 U. nThis will help all Sony R2R users in the near future as well as our machines age over time.
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; h+ @( K  O1 J& S9 y, OKind regards, Raymond  A0 ]9 ^# y0 Z% @' C" [
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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6 g0 L4 G  m* {
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零件追蹤/ A7 f( U7 q7 g" ?
http://www.globalsemi.com/productdetails.aspx?itemno=875032100/ L* z. Z1 O, g0 s2 P+ {. r
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6 o& h; [4 M; d
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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