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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 ) ^% J% F5 ~/ B" V$ t  V1 a! y$ _

8 x# u* W7 N. j/ l+ n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。* L3 B! S+ O% h: l) U, U" u5 b
控制转速的IC, SONY CX-032各脚电压值如图7 ~/ z' e' ]; F3 R( y) u
22-1.jpg   |2 h) C2 k" [9 a  M& G% w7 H9 {% S* c
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!( h  z$ J! X# c) H6 s4 |
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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  g0 C( b$ L8 C7 s/ X# o有人走過相同的路了
. N4 ^3 `7 Y9 s3 l: M" D' o* M) L摘自   Obsolete Media - Forum: e* ^2 |2 \2 P$ W- g- ~& B/ |
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
% \6 \# c5 V0 l/ W2 u4 Xhttp://obsoletemedia.com/geeklog/forum/print.php?id=20250 h* g7 b6 s1 X$ D# ^

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Chip CX-032B for Sony TC-558
# [/ I4 U5 j' ^9 x; e- `, _* w6 uPosted on: June 16 2008 @ 01:43 PM
  \( t. }8 W  v" t3 ?; jBy: RODALCO
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Content:
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: I2 @: t2 Z# @, s" A& u& YHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip." w0 `' e: B/ Z% l- k& H5 \- @3 k( K
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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.
4 I! g! n" F' ?" W& T5 l/ YA 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.* l, u2 p/ I: R- A* ~- r4 _
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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4 e6 ^- D" c8 l) U2 o1 `8 c( RThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)1 A: y; {# X) P

" a. R1 ~3 Q. \4 g1 }6 O, P# `Gru�, Raymond
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, \4 E& c. V' i1 X% y1 D- EChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 J3 i( e- Q8 d3 [3 v* YBy: RODALCO 5 _0 m; K$ X! {+ ^! J: E

3 v  I& Y3 z! f; eContent: 7 a7 w0 t( X4 u- \# G
<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.
% t0 {9 W* F* s8 K4 ?This will help all Sony R2R users in the near future as well as our machines age over time.
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+ h: D# d8 V. b% E; `5 y* K4 LKind 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$ l5 Z- I1 b7 N7 G+ B+ Y

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零件追蹤
: i3 D! `& z# T0 S6 Ehttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
1 J4 I1 z- L: F' K$ r$ B: [. Q' s39.99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, E+ w* T0 y* s" n
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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