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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 $ x5 t; X, a% `: C

0 d! d! L2 J8 X' b  Z9 ~" j0 m6 P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。+ I' p" Z' d7 U- K+ Y
控制转速的IC, SONY CX-032各脚电压值如图
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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
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" i- t; P, \5 f% N有人走過相同的路了6 p+ i* G& V* p7 \& j
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 1 X& A6 b% N! [+ `3 l
http://obsoletemedia.com/geeklog/forum/print.php?id=20251 b. p" l" F  ]& B' B

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Chip CX-032B for Sony TC-558
5 u+ F6 u# L- ?) aPosted on: June 16 2008 @ 01:43 PM
& r* X1 L# V% m5 Y* vBy: RODALCO
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* G  k( ~, g9 @, f3 l( m" GContent:
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1 T0 K1 v4 i1 J1 A* E1 ]. XHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.4 _( M8 Y- T+ v/ E2 Z3 [

& h, w& U8 f7 g4 RLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
: y- T( }# D1 E7 X  l1 ~A rare Sony turntable TTS 400 has the same chip used as well.1 C0 [) f! J. u: s" k

" Q$ W+ {) E: ]2 TThe supllier on this link has the IC listed.
8 j. p9 E. x0 Mhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)) E6 R6 z& _% @! G5 M
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The German Bandmaschinen Forum thread." k( j/ \3 e5 T- ^
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond1 b0 H: c/ Z# B/ @% q3 i

3 A" m$ S6 l1 h6 w' eChip 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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6 O$ u4 L7 O3 S  h+ n7 VI 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.
; u( u, r2 f; P: f- ?$ x1 s# ]1 A. BThis will help all Sony R2R users in the near future as well as our machines age over time.
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7 }* Z: p2 Q0 v7 A0 J6 d# lKind 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
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零件追蹤
, f& ]; S9 s$ Q8 bhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
/ z$ R3 O3 B# H: |& z39.99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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