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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。1 ^( u$ f/ V: f
控制转速的IC, SONY CX-032各脚电压值如图3 c0 |4 w6 j3 O2 b! I
22-1.jpg . A% w' y- u1 y: ~' c$ r

2 L3 _0 N+ Q( r8 o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
4 W) k' k9 b3 l摘自   Obsolete Media - Forum
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/ P& {  e/ i# y5 Dhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025   m. Z/ g) Q5 r
http://obsoletemedia.com/geeklog/forum/print.php?id=20251 V) u* O6 Q) y( y! e. [4 [/ L0 K

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5 Q: m+ N4 V3 u, A* J; o1 cChip CX-032B for Sony TC-558* C7 ?; i8 g& M
Posted on: June 16 2008 @ 01:43 PM
( p+ Y* |1 ^. h9 |+ G1 gBy: RODALCO
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6 M: K  t( G& i  F; s' d+ U8 eHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.! M' q$ C, J4 D% p6 W5 F3 @: ?2 V

1 R, Z! |! B* r+ r$ L' M8 hLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
! C% {0 H1 Q' S0 L4 F, _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.
4 L2 b! F3 p: f( X( k5 w9 Lhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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9 ^( m! F' C; WThe German Bandmaschinen Forum thread.% t: Z! y( h. X+ i

, {9 u% D( q' A, ihttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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% c3 A* |# h8 E5 }$ Z( lGru�, Raymond5 F- g2 W% p/ `* e

( s9 g1 g; B) n' B3 X$ c& hChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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?( B6 }. T9 C) u
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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.  V" i3 `1 o+ i# ]
This will help all Sony R2R users in the near future as well as our machines age over time.- X, Y9 t# G5 ]
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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+ l) h2 k4 g/ [7 j6 x0 |6 X. ]! R
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8 W# L5 k- I. Y6 ?, w零件追蹤
! R' V5 h6 u+ h8 ~http://www.globalsemi.com/productdetails.aspx?itemno=875032100/ j8 P% w; M4 ?6 I8 O
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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