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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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7 O' @7 z$ E9 x, e' V! 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。
% I. N1 O8 k/ ?7 Y2 T控制转速的IC, SONY CX-032各脚电压值如图
3 N  b# u$ [) }6 Y" Z0 X9 y 22-1.jpg 4 @4 v7 C8 u+ _( v0 w+ X

5 R& Q; d  Y3 s: F2 z是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* D. j! J) [3 X6 T
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 9 \. x( H4 |  D, B' W- c
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有人走過相同的路了
  N% \$ O/ e6 ~# F+ `1 Y, T+ Z2 b摘自   Obsolete Media - Forum/ s, N# N8 o, P- ?4 c

  H+ C' L. @3 ehttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
; J, [+ `3 x1 {% }http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
& C& x% f! _+ ^( ~6 YPosted on: June 16 2008 @ 01:43 PM 8 w! X) E+ R2 K5 b1 H
By: RODALCO . A5 T. W6 x5 f

. r$ \1 u( _0 f* U* IContent: - L) u3 F/ E: |3 n5 p; e' h) ?

% [! u0 G6 \9 ]/ aHi, 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.0 P' w$ D; d9 D
A rare Sony turntable TTS 400 has the same chip used as well.
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; ^: @3 B* u4 o, |0 }2 _! A. g. V! bThe supllier on this link has the IC listed.8 C8 X+ T" h( r. b' z- F1 N: a9 c
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% w8 a) W" Z7 k. o# D

" n) |: i" i  |! z$ _The German Bandmaschinen Forum thread.
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7 W" N/ M0 }# S: e9 e9 zhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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, m, U' W9 s; N7 ^5 pGru�, Raymond
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1 r: r, B) [  N- lChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / d/ V1 v3 E8 n+ F
By: RODALCO
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3 F. I- U( W3 Y/ mContent: 6 I, S( ?( q5 N2 G" g1 R8 S2 J
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) w1 W5 v; m: u! B9 N
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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.
$ X: i( a% `/ yThis will help all Sony R2R users in the near future as well as our machines age over time.
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5 }: C* D8 l" I: F$ NKind regards, Raymond2 U: W2 s: P2 r& \$ k# L3 K9 g8 Y( j1 `
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: b- O% w) F4 A* \2 U有沒有用零件做出等效的主軸控制還要進一步追蹤) t3 K7 J* S7 J" ]& n( k+ b

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, e6 b8 R! g: q零件追蹤' T. ], f+ h* H) u7 N
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 d6 O6 ?, w8 b; z' x6 b0 R39.99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0 ?6 q  x  _- _4 J% L3 s) {
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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