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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。' a. @) j0 \8 d) N0 s) X
控制转速的IC, SONY CX-032各脚电压值如图
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# v! W: r% A$ v0 Y6 i) e/ l) w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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$ [, t: H+ `! p/ z' K有人走過相同的路了3 ~& u0 M4 S* b( p4 P: b/ v7 l
摘自   Obsolete Media - Forum
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* b7 a  D5 e% K) l4 v) `# Hhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
3 r  _: G- `# P) U( M5 I$ jhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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8 G, _* O0 S0 [$ |8 m% sChip CX-032B for Sony TC-558* M; k! m0 u' ~; V  Q
Posted on: June 16 2008 @ 01:43 PM
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Content:
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: K0 k+ U; c/ T, O( U' Q) BHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.5 w6 r3 L6 D( Q- \% a/ Y
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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.# i/ I5 ?2 R( _. K! z& @7 L0 |
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.
" D& }3 q9 a$ A% Qhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 E. A0 o, @" Q: E# _1 `
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The German Bandmaschinen Forum thread.
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8 N( I2 B- d9 u2 Uhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond) ]( Z9 C" m. t
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 6 i- j- E' F: D8 e
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?1 V4 V2 G9 b% w6 B( X
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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.
+ E/ b4 e+ ]: Q( Y5 @: L3 N2 OThis will help all Sony R2R users in the near future as well as our machines age over time.9 x6 w+ o) q0 {" Z
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Kind regards, Raymond, }7 f6 E3 D, }& g! }4 m
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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4 u/ [/ A0 a+ y2 L! @. n, b
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
6 @: K3 W, F* E* G: G39.99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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