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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 ) u. f! L% U" s' k5 Z$ D- R) L* I
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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。
& R  F$ a+ w2 P控制转速的IC, SONY CX-032各脚电压值如图
% j1 n; A- g# l5 E" b 22-1.jpg 6 e9 t1 L$ w2 n

' r8 l5 Q" ^- }4 V是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!4 ~. R* z: F4 f4 f5 X1 c
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 1 {6 o' _6 |2 ], u: r2 n
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有人走過相同的路了" j8 N9 m) h5 K8 {2 z1 ~
摘自   Obsolete Media - Forum
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! F! U& l4 n+ v( Rhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
8 ^* z  q: m+ S" bhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558" S; A6 x6 I: L6 G3 M
Posted on: June 16 2008 @ 01:43 PM 2 w6 e+ K# a5 T) h+ w# w
By: RODALCO
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$ `# k3 U1 Z' s# `9 OHi, 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.6 J! Q; d& ^7 R2 ]4 g, L
A rare Sony turntable TTS 400 has the same chip used as well.9 e! Y1 i1 a2 I4 g; I

3 }! \, C$ R9 R* L' jThe supllier on this link has the IC listed.
# I, \1 f& L- |* Z) U% V  U) [http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料), @- H3 h3 Y- g

* ^+ R7 A' l" F# qThe 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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7 d- p. \* U3 e; b- @Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
4 L2 c7 V. G. b  r5 n$ uBy: RODALCO 3 u  W4 t, R7 H. u) o% r! S

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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?' u7 d, O8 g$ s
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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.3 r8 k6 Z6 R% p9 M
This will help all Sony R2R users in the near future as well as our machines age over time.$ y# H$ P- s& Z3 d  T" h' N

1 l* H& p: \' CKind regards, Raymond
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" e, M* z4 g" o5 ~% ]3 o  B; s有沒有用零件做出等效的主軸控制還要進一步追蹤- d+ X1 a' A+ k. n; [& L

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" k2 h  ~7 D, K零件追蹤2 r! d( f: e+ g3 @3 }3 V
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
$ u/ K" G' y# f) x1 V39.99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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