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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
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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。7 b. h0 q1 |: o; e1 \; A- M0 r
控制转速的IC, SONY CX-032各脚电压值如图7 B/ w% E. j& |3 ?* f
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
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有人走過相同的路了& H9 X  x4 I0 K9 h2 k
摘自   Obsolete Media - Forum+ h" {) E  ?( K3 G  q- ^) N* S' o
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
) |) }9 b6 U1 n, X, m) e$ U) S$ r; @http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
5 d; d* R4 q4 S2 F8 Y2 {3 l2 \Posted on: June 16 2008 @ 01:43 PM 5 _1 E8 u. Y8 m
By: RODALCO $ b+ ]% H! X$ A2 N' {- `
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Content:
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1 v- p7 G4 a9 g% |1 D- ^2 }Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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( C' J- V3 a- s% U7 e, B& |: ^Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
! X/ _4 c; c+ U; v( |$ bA rare Sony turntable TTS 400 has the same chip used as well." U' q/ H4 H# ?! t: ~8 x) x& @5 u$ l
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The supllier on this link has the IC listed.9 A% d( ?, `0 Y1 q$ }
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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0 T3 t) [1 F! |' n/ c6 x. k" RGru�, Raymond1 |$ Y0 w8 a& X6 p0 E7 G

8 v4 G: b$ v+ t0 D# sChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 3 b( z3 B5 K: X2 }; Z
By: 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& c: B% R/ V7 x2 Q; @( mI 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.1 A! Z3 b1 J% Q0 t' a! X8 a9 E
This 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# e/ Y# Z/ H/ h7 K1 w
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; T: Y* L) J( u  X8 A. O零件追蹤
, F0 O; a7 K6 O8 q8 d$ Khttp://www.globalsemi.com/productdetails.aspx?itemno=875032100) j3 C! f% w; N% U/ Q
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
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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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