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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。+ q$ Q" I+ j: I2 }4 k. R, d) S
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 ! N: W% u+ s9 R: Q$ d7 a

9 W7 W% r$ S, w有人走過相同的路了! x8 ]/ Y1 F4 J. R" j
摘自   Obsolete Media - Forum* w; t7 p, ^: c" L' ?& O
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
7 C& m8 _. F& _* \0 \% G$ q6 @http://obsoletemedia.com/geeklog/forum/print.php?id=2025) [" X  J. o2 D* J* k% ]3 C8 g2 q, }
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0 H$ u4 Z* s1 K3 |/ D& v* ]Chip CX-032B for Sony TC-558: {5 C! Q1 |" m4 B* G' q/ d3 L6 V
Posted on: June 16 2008 @ 01:43 PM " A. p) F: `! p- e3 s7 {2 N
By: RODALCO ; x& Q# }; m( [3 T; @4 Y1 U9 A
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Content: 5 }: {! m9 D# ?6 H' R
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.5 S7 w9 i& b8 s7 g7 f8 a, ~
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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.) v3 Q# B7 |  _# v) j; i7 i
A rare Sony turntable TTS 400 has the same chip used as well.7 |9 Y% {) x7 [# `
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The supllier on this link has the IC listed.3 p: T' C4 g! w- q9 ]
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)) @  n2 R* h+ Y! c$ L
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The German Bandmaschinen Forum thread.% E- O) u" h% M. w0 P( M
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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  E  {7 f7 {  w, o$ hGru�, Raymond
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' X/ U3 H3 z5 {0 mChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 4 F6 w$ O8 W6 J( ?6 L
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 b  t8 b3 R; T$ D" S$ E2 a% _
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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.
$ U; O# M( _' n$ X/ c; @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
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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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5 G3 Y; |% U% y, p- [0 N4 J  y零件追蹤; a/ t, `6 g: n( }
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
8 b3 T/ F3 v5 q39.99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/ G) h  O3 Z1 J  w' t" Y: h8 P6 Y& B
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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