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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 , V& K% |/ r" }% C0 c8 a) e

4 n) N# Y# H! {# q7 C: R8 q. _) g! X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。: r7 z6 q' Z7 g6 l' c
控制转速的IC, SONY CX-032各脚电压值如图
% x3 k+ _; c. j! A' { 22-1.jpg ) z' q  c: Y3 J+ x) c

+ E* R, V/ y$ T7 H0 r% E, f是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!7 A) U) p) C& ]3 v
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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* J, Z, z8 K9 `7 s& [0 c有人走過相同的路了. k# I% k- D. s  v
摘自   Obsolete Media - Forum/ [1 i; u$ r! o/ `$ i  m
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 : i6 ~: f* T, o$ @+ K9 J+ X5 E
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
+ h* H( g' `) g# M( w- ^  VPosted on: June 16 2008 @ 01:43 PM : Y2 P. E3 ^' u+ l  i& r' z
By: RODALCO , M9 D# ]# z  C( F4 `$ W7 G

* K6 [& t& H/ J4 y7 R3 `Content: / T  f4 F' E% j$ J

8 s8 r! C# H& ^% u2 YHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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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.* Q+ a4 w; D9 D/ L6 W
A rare Sony turntable TTS 400 has the same chip used as well.6 P# O0 x  x2 B& n

0 N0 z8 X4 V6 a2 ?  O- T0 oThe supllier on this link has the IC listed.
1 ]2 w8 g6 Z: f. hhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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0 }" m" H$ Y! _5 v: I! o8 {http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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2 t2 o. L2 L5 |5 [4 c! H/ kGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # w& B5 k% P$ H1 _
By: RODALCO   ?2 _& \1 O, U1 M7 H

1 Z- |# K  G. l, x7 M# BContent: ( h4 N2 N# Y% n: i8 U2 A1 @
<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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2 k: @! F! ^# T) t  gI 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., I: U6 Z* ]9 X+ j2 i
This will help all Sony R2R users in the near future as well as our machines age over time.
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0 w$ f. Y) S& LKind regards, Raymond
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' u$ o/ r: g( B/ x* }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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零件追蹤
/ F0 J! U6 D/ m4 f1 F+ U0 Phttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
( s* G: @+ x% V39.99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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