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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 - g- e6 s% g5 {8 k/ }

) j4 c! c9 G7 s- m- f; s. M  Q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。
* X! n2 I/ P5 J0 W: M控制转速的IC, SONY CX-032各脚电压值如图
% j/ o2 V$ i& T+ C- O 22-1.jpg
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' w0 G$ V2 N. O' O+ B4 r9 c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 : R: j3 d5 c  J

  g) u+ A& C2 D3 X/ _2 K  |有人走過相同的路了- v) r7 Y; o( Q( a
摘自   Obsolete Media - Forum5 y4 D+ m: \0 }$ `
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 : c+ Y/ f0 C) G9 `3 E0 S, j# b0 {
http://obsoletemedia.com/geeklog/forum/print.php?id=2025! c- }% p$ `2 o; d) f  A. Q1 ~: Y% L

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Chip CX-032B for Sony TC-558
1 {' l0 b: b  z. }% p: U  q7 APosted on: June 16 2008 @ 01:43 PM
3 h5 w. R% r1 a, h) {  N5 |- OBy: RODALCO
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Content: % X: i; v5 s  o; D7 K

: F; J( ^- @/ `" |) D% }5 G" o# FHi, 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.
& l0 w; c2 d" GA rare Sony turntable TTS 400 has the same chip used as well.! f* r, I/ D0 L. P, \, z0 U3 \. e

2 C: s* O" L- j( g( q- Q  pThe supllier on this link has the IC listed.+ A0 b9 ]( l5 W) K
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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" A3 ]. q; X/ {5 |. b( y* oThe German Bandmaschinen Forum thread.
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) u; J3 b& D" c/ c! l) \# ohttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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! g& ~8 R+ W5 nGru�, Raymond: F% y1 g9 h( G- l8 J
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
+ M4 ?! U, r" I; VBy: RODALCO
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& \# S8 e4 ?! h! m" gContent: ; U! W4 a8 [/ \! O
<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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, x+ w2 K7 a1 ^0 @' |/ aI 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.
+ {; s3 R- ~- _5 fThis will help all Sony R2R users in the near future as well as our machines age over time.
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" ~6 T5 A. k+ ?8 Y6 t3 K( ^- PKind regards, Raymond
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3 p  e) {9 U% b, ]) G7 ^) W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  [# @+ |! y- _' P; O
http://www.globalsemi.com/productdetails.aspx?itemno=8750321002 n5 F' h5 a) y9 W. K, v. b
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: p2 t! ~1 V8 B) q
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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