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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。( g; w: P! a% B) j
控制转速的IC, SONY CX-032各脚电压值如图
& E9 I6 A2 R  r% R& x 22-1.jpg
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2 n5 t/ u: C: t+ p' ?- d是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!( E, L0 l# q6 ~# W1 x! l
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 ( k$ Y) G+ E; m7 \
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有人走過相同的路了
( [- L; Z, T+ o' N# r摘自   Obsolete Media - Forum4 b$ l- A- I, U; c* W' s) w
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
* {& B# C2 s; ^) Xhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025" Y' C0 C6 ?# v

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Chip CX-032B for Sony TC-558& X; O- z1 m* P' }
Posted on: June 16 2008 @ 01:43 PM
2 ?4 `4 b. l1 M9 SBy: RODALCO
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Content:
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0 R3 L. @7 V: t' d; n: Y' OHi, 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- E" x- l: t2 N$ SA 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 N3 M, U1 }4 E2 J- U% N: J
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料): z7 k) I  j, I1 S3 A0 b8 i6 _! q

1 G; S0 D5 I; s% G0 S  |The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)% P( Z* D9 t, G) A0 J

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1 G& A2 `; i/ a$ m! q! k' V. nChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 3 u% E  {1 w! @( M$ t( U; `
By: RODALCO 0 p5 {$ J3 ]2 u3 ^7 g

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<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?% o8 |" T5 E; A3 {+ ^& l$ T

2 L& X( f; S% jI 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.: U9 o) i* s8 p
This will help all Sony R2R users in the near future as well as our machines age over time.& h4 b( y0 @3 x0 Z: g0 v( F

- R# @; a* J1 |% nKind regards, Raymond1 G6 Q2 J; m" b( }# t+ x$ f+ b6 b

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; U, h0 W5 W# I有沒有用零件做出等效的主軸控制還要進一步追蹤' E' V; @, m# W# S! a. j$ U

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# u; ?5 r' p; I) d$ Q8 V" ]2 O) }http://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 A! _: g, U  y# @; H. W( `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
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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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