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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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% l& \% _0 F: I* N0 b7 `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。# x* R; |: E! X- J4 P
控制转速的IC, SONY CX-032各脚电压值如图4 h, n6 @7 c, S: o& ^% Q' P, `
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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 ! z) S( Z, \1 x  x" ^$ n

8 g' q2 i$ L5 T有人走過相同的路了) n# @/ b9 Z: |1 _
摘自   Obsolete Media - Forum4 X0 R3 U; m/ @- @. S1 W
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 . f" Y4 H: G+ u* R7 _, a- Y
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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5 |1 z/ H5 `' v/ N1 yChip CX-032B for Sony TC-558
+ i# R/ @) ^# [Posted on: June 16 2008 @ 01:43 PM
; [2 {% ~5 `( ^( s0 p3 aBy: RODALCO
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# e$ n- R2 V7 o( t& M2 p! A* pContent:
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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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' T  o/ y$ |$ o% `1 c% ^: r: x9 R( 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 Y/ X" Q$ c6 R- I9 C0 }6 ~9 r- f* R- }
A rare Sony turntable TTS 400 has the same chip used as well., A( |) r7 w/ z" k0 a2 o

5 ~2 P0 S; a/ M$ E; b% ^The supllier on this link has the IC listed.$ z8 h: y, N0 `3 ^4 K% F% w
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)* C) n; W: S: i# U
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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9 B; r! W& d0 }Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: 3 s; d$ j( V1 f6 y3 f- }* W
<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.
6 {. x7 q$ m  e, ?This will help all Sony R2R users in the near future as well as our machines age over time.
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1 r9 q$ x# _; m6 E* P- h  bKind regards, Raymond  Y5 U3 T0 |+ X7 C: {8 |/ Q- I/ s
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' b! W: D) l5 f( e$ G- S* A9 F有沒有用零件做出等效的主軸控制還要進一步追蹤$ i9 ]+ X* a) i( w, X, J6 e  P7 n
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1 c; c" S$ x2 S1 \零件追蹤  r. f6 n- ^  R
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 I6 N  B1 I' o39.99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" Y; [! f6 l' T3 c
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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