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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。
& t- Y. w/ x3 b1 b/ U  W控制转速的IC, SONY CX-032各脚电压值如图
) _3 E: J; g: `. _$ f- s6 W  I0 _ 22-1.jpg 8 P7 M5 x+ v. G7 P# I$ r9 w4 i9 X1 {

" x* n) N* E5 V$ s7 s) L9 e5 K是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!4 {9 q& z6 q# k
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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有人走過相同的路了
% v+ G9 ~, f6 X摘自   Obsolete Media - Forum6 N. `" j  n. t8 X, v
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
7 B: d  g2 N: m' [9 O: m! V2 {/ Dhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025' W% Q: m) n$ N# @! r

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Chip CX-032B for Sony TC-558
" y3 `) i# N) \/ {/ b; DPosted on: June 16 2008 @ 01:43 PM
$ K% X% B! S  b  v' zBy: RODALCO
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, ?" U# N  j, s) p2 D  OContent: " f6 I. I1 q& ~4 B7 k# W8 T

8 d4 j4 N& O- y/ I" l% c0 S/ AHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.0 S( c/ z! t6 A- j& o) f

  s1 [" o9 r6 _Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
/ M, q. e# H0 N- c! s. Q- V$ UA 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.
& ^& ]9 Y+ W; c6 H' b- q% [http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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8 m$ ?1 D! o; C8 gThe German Bandmaschinen Forum thread.& X; R' J, A0 V4 J

% {, P" H2 z; A# v" Fhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)- [. |- _, ]& j! a4 G

/ D% b! K7 g. rGru�, Raymond9 ]1 @# {5 m  ^" C  i& ^+ Q

0 `1 G8 U1 l0 @Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 1 a) I7 ]9 ?- v& ?
By: RODALCO ( K* n1 `2 a  u- d$ Z9 b
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Content:
" g0 ]; a4 @. G8 t  X, l<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.
( T1 q! T1 P- e; P( U4 Y4 @: I; w! h0 HThis will help all Sony R2R users in the near future as well as our machines age over time.
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% U3 ]8 u+ i" aKind regards, Raymond
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* d$ t3 J6 T- w7 L% T+ Q) 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
$ v$ D2 W  W: l3 khttp://www.globalsemi.com/productdetails.aspx?itemno=8750321002 {1 n* Y9 A6 {2 N7 V
39.99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2 ~# x# ?/ p& W% S. l) W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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