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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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; v$ V& T: s- @- ~8 f* m* 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。" m) E3 R3 e8 y' U- e0 y1 }
控制转速的IC, SONY CX-032各脚电压值如图
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/ l: {7 D: t  l* C9 w是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* x- L+ N2 }% Z4 Y5 ]9 k* }
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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/ z! _, }1 Z4 z' C6 d, m+ ?有人走過相同的路了
2 W: R+ s5 Q; C. J摘自   Obsolete Media - Forum
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; b/ f& M6 [$ C) s/ Nhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
3 z7 D2 E# ]5 E- ]http://obsoletemedia.com/geeklog/forum/print.php?id=20252 u0 R/ b; M  d' \

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& Z2 s! T. Z3 M+ G9 h6 a5 v- o0 bChip CX-032B for Sony TC-558
6 E; H4 o$ B9 Y, O8 ~Posted on: June 16 2008 @ 01:43 PM
" M3 q3 @. Z, \) K" YBy: RODALCO / e, i, b+ T" a2 {
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Content: - |/ x0 [! S+ ?' E  O( b
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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.
6 n$ r8 C# F# @7 V7 wA rare Sony turntable TTS 400 has the same chip used as well.5 }6 f1 B) k- [7 P* U3 f- j

% p2 R- |- ~  B5 B) E. EThe supllier on this link has the IC listed.
; ^2 t/ B( M/ I3 K/ thttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)" H2 |+ z9 K; a2 m
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The German Bandmaschinen Forum thread.1 a. ?6 J& U* o% k' W& }* x

4 K1 b4 N7 K, B& c5 x: Lhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM . a- e# R* B2 x" L) h& L6 a
By: RODALCO 5 v, G9 I, b* |+ I6 ?* \
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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?3 O. p* f/ m; ?; ?% M" L( w
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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.
: [, q3 e" k3 [' AThis will help all Sony R2R users in the near future as well as our machines age over time.
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  n" o2 K3 u" @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
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零件追蹤0 a" K- {3 V3 ^( G4 F
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
7 R  O( O3 V! h; ]7 e39.99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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