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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 w/ w7 H# W; D, @7 N
控制转速的IC, SONY CX-032各脚电压值如图
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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+ {- r! O" o" X# B3 y: C9 Z
摘自   Obsolete Media - Forum6 \+ g) |+ C" F% m  k$ r
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558
8 g7 c* B4 ]$ EPosted on: June 16 2008 @ 01:43 PM
& T# ~+ h; U7 I: H! c1 IBy: RODALCO
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.+ G! p7 D  g5 t9 T6 h) K$ b: Z2 p
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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.
, a: A. i6 v% L; g4 N4 M$ n3 yA 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.5 n8 z- i# X9 T$ }$ h' K$ K
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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5 [; E6 H* R: p* `1 G+ F: e/ DThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 u3 k" U: R9 z* I  M
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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5 e" F: ]1 i/ A0 S. B<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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) M/ ]* H0 O" h: u7 hI 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.
; b/ ?4 V3 N/ C8 D6 l, o0 w! BThis will help all Sony R2R users in the near future as well as our machines age over time., n( D8 ~7 W& h* P; N) }/ M2 r
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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* T3 p1 k7 B, f5 [( n

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零件追蹤
0 E' Z4 h# A& ^2 G0 dhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321006 n  X3 b/ Q) ^5 Y. {
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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