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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。
9 e, U* |- R* V/ X) T- B控制转速的IC, SONY CX-032各脚电压值如图6 s8 `; l& l( [
22-1.jpg
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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 ! }4 c# j+ ?( w; w
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有人走過相同的路了
! I6 i  W2 a- C' B: O' `摘自   Obsolete Media - Forum7 `3 B' H  y1 m+ ~. n, D, Y
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 $ Q% f& @2 a( [8 {6 N- W& L
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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# T5 B9 F3 |0 p% jChip CX-032B for Sony TC-558
3 @" i9 r5 e& S# O6 u" l" BPosted on: June 16 2008 @ 01:43 PM
: @' P+ _3 @2 _- L- |By: RODALCO . L3 x, N$ l$ ?' n; _+ _$ a7 k

3 h, l8 @1 e7 QContent: 3 }6 j6 g0 ~0 A5 s2 f

9 O5 P0 ?8 e8 k2 j# c8 L- d! e2 uHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip." W- n, u- p) g" b) c- A& b7 R
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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.
1 c( E6 K% b$ K, oA 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." V# f% J, |- B! Z! `, e
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)! D$ x6 ]6 w: a  \/ g5 A% w
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The German Bandmaschinen Forum thread.
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+ A4 X1 [0 E- m8 N8 ~5 [6 Zhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)+ t  p' ]: U  z& W- `

, N+ d; ]+ A+ M4 h. DGru�, Raymond! Z9 U4 D7 w; s$ {. }- I8 |, [

7 d- l# Q% C- uChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ( ]9 u3 g; K* _0 l: y8 }! N
By: RODALCO
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Content: ! B! c$ Y- a+ P1 v$ Q+ m0 d
<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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4 M# t. v' M3 H  Y; II 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.
5 q* l: {; B% o9 `6 L3 H. S, bThis will help all Sony R2R users in the near future as well as our machines age over time.
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3 x+ U) N3 V# U3 dKind 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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2 ]6 |# s1 _1 N零件追蹤; v* V+ R5 K$ M+ Y
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
$ b" P. v* l7 L% E$ I3 Z5 m+ 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
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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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