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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 ( Y. y2 N: A8 @$ _7 g
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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。
* _* u5 K' ^+ s* J5 v8 s" ?控制转速的IC, SONY CX-032各脚电压值如图
" w2 B  H6 D& o+ \" `; B 22-1.jpg   b7 K9 q1 K5 y5 t

5 W) @4 V1 ]% P$ u是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!$ T% B9 b' i% X# x
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8 a+ M  t, `" c5 I8 d
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 / w0 D% B$ Q+ I- d
http://obsoletemedia.com/geeklog/forum/print.php?id=20253 \# b3 p8 U, q9 C% t( b( w( }
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. X! S9 P4 {; a+ o& D" OChip CX-032B for Sony TC-558; A$ T9 Q9 B" s7 U7 m
Posted on: June 16 2008 @ 01:43 PM . l/ o+ H' h# i
By: RODALCO 4 d2 c4 O' h) {# i( Z' S" e

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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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8 o. q9 T2 X* zLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.9 L4 q/ t. z: y% ^. P! {4 A1 `
A rare Sony turntable TTS 400 has the same chip used as well./ f1 `4 b& j- q$ t+ A& q

" y3 Q6 P3 g. l1 NThe supllier on this link has the IC listed.
3 k' ^+ b6 Y: H; B) shttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料), I- \3 D7 P$ m4 J  ]1 K
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The German Bandmaschinen Forum thread.8 l$ V$ J: }+ `% f  t
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)" r: u. r# |, t0 T
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ' Q( W& |. _$ S  s
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?
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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.% Y5 x, w. o) Q( K. Q
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond) |. `2 m3 K+ K2 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) j" a9 T$ M- z' u- n

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零件追蹤
: A9 @; R* K# |  B, P2 o8 `8 B, lhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
- T% S* N: o0 J+ j6 P39.99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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