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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 ) ]8 M0 Y' k; q; L

( h+ K  t. u$ e$ J, e7 n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& }) G8 T. g) |" t
控制转速的IC, SONY CX-032各脚电压值如图
4 P7 y4 A+ _" A2 D 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!6 A3 W) e0 T; C, Q! V5 w; R$ ^7 g* j
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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! G. g$ y5 P1 J有人走過相同的路了9 m: m& y: N* X5 z5 K9 C
摘自   Obsolete Media - Forum
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; n  H$ X4 r' }% \" rhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ' C8 H- C+ o& T, L% }) N; u- R% j
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
, m7 q' N3 B" S/ @% P8 g  k) L; K4 h! [Posted on: June 16 2008 @ 01:43 PM 5 q' p! ?4 T" q
By: RODALCO
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( {3 X# z4 M+ v& V& o  f( vContent: 0 Q" S. v0 b6 X5 p7 V, n( B

6 ?  ^2 D8 ?  ~+ W2 b( ZHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.# J+ F- j4 J3 w( b8 z
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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." n# d$ y8 l& [' N9 S/ u
A rare Sony turntable TTS 400 has the same chip used as well.
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6 D2 X' y$ N/ N  iThe supllier on this link has the IC listed.
7 O: x! N" ?/ A5 _: R9 X' @http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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* x' `4 Q: a2 [, e3 gThe German Bandmaschinen Forum thread.
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, i- h, C( l) t: g, qhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)2 g! g. @1 C& J: s( N/ Q

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2 J: t  {1 H# n$ S! z- [Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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.
, h. {- Z* }7 D: |. @! X# }7 a' y- ?This will help all Sony R2R users in the near future as well as our machines age over time.
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9 w8 u6 k" w& E6 Q0 ~Kind regards, Raymond2 Z& f- W" q+ N
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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
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零件追蹤/ A! g- }' w. F, R" U
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
- o. s6 y  \; O39.99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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