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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 " D# @' X2 }' W# }  f) U4 [7 o
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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。
% F/ k, h0 v* _$ E2 l4 C/ a控制转速的IC, SONY CX-032各脚电压值如图
% f1 {, \9 Q: y3 I/ n 22-1.jpg 2 X4 N4 Y' i1 b& [5 b5 r" b+ x  W
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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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4 [7 A% t; Y3 Z2 q' h有人走過相同的路了
' T; Q$ ?1 y0 T8 B: W. @+ I; S摘自   Obsolete Media - Forum0 `$ T/ G4 a; K: ^9 j
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
6 s/ _3 J  p" P' `* N4 P. bhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558% A' ?+ h7 d2 Z
Posted on: June 16 2008 @ 01:43 PM
9 o2 a) N" @& u6 Z, g- ~By: RODALCO ' S+ A% K8 K3 y6 L" v& U. m, N6 w

" s0 y1 h9 Z9 Y# E* F$ I" B. L& ]Content: 4 x5 N: r) b) Z3 V2 O- [
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Hi, 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.9 `! o4 m/ i: V3 b  n# ]
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.
) f0 y/ |5 t/ r0 ~" g/ Y4 a$ ehttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)# e  N$ o* E! q. L9 |) e
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The German Bandmaschinen Forum thread.; _& m) |: h" ]' U
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 m* H! C6 Y; q+ N5 ]6 d

5 a* p0 q# }# K% h  H/ P! M5 NGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
6 Q+ h# F; F* d4 ^" QBy: RODALCO - @/ d( L* F$ ]% X# @* c

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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?4 Y3 o: f5 C2 h) O
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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.
; ^% i2 u1 R6 `# N; r- uThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond4 H  ^1 b2 B2 b

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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: b& U) l4 W5 y" L& z* @& i
http://www.globalsemi.com/productdetails.aspx?itemno=875032100" H! S! i7 q  j
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+ x( Y- y: R* I# J
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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