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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 : q2 d+ @" d7 o4 b  {

. H, |# V2 O$ k- i9 e# _0 c2 V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。8 L# @# ^# l0 V$ ~$ k, f+ i
控制转速的IC, SONY CX-032各脚电压值如图
( b7 t6 N' G, T 22-1.jpg ! ]/ f- x. A# F5 c0 c# n. e! Q

; {, ~: j4 }" B! A% l- Z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 + B2 O" C/ q' [" a/ U9 f
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有人走過相同的路了
6 T3 l/ N6 h6 Z" g摘自   Obsolete Media - Forum
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2 D+ V) T! T& R9 z" T7 ^http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
6 K8 u( M0 P* y. u+ C: ]4 ?  y" \http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
* \) r' [, T4 yPosted on: June 16 2008 @ 01:43 PM 0 A% U, Y2 i# |8 W) Q! m
By: RODALCO
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: X1 Z2 d$ Q6 M: K' C* {: UContent:
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4 d1 w7 y8 Z6 w% A& s' ^Hi, 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.% b2 @, B6 |& s9 F- ]
A rare Sony turntable TTS 400 has the same chip used as well.8 ~! {4 x/ w5 ]" e. ^5 T  u# e

- `: H4 H: O7 J( p+ oThe supllier on this link has the IC listed.
" K9 {5 b% s6 vhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.5 m+ C9 r; ]; R8 k1 l8 m$ I* H

( k% J! `( _) q. C' N/ dhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)- ?/ D! N2 Z4 D+ ^: d

. }: k0 I' r3 `# y. rGru�, Raymond1 `0 F$ k0 R+ y

- T7 {, y8 t3 _; Q/ w' N( wChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM % z; j6 I+ ^+ @6 G: ~
By: RODALCO
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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?
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( H% V' a1 e0 D5 L6 l/ oI 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.7 S. p; r6 D0 l, l5 W+ D1 C4 w
This will help all Sony R2R users in the near future as well as our machines age over time.; N# P1 Z9 A! A

9 Z; X0 }: z; X% \Kind regards, Raymond
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; \' @. S* ]) q: M- o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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7 S! U2 R7 B* [& E4 X零件追蹤$ B) L. B" X& O* @8 @
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
; f1 T6 N- |9 q: |5 C1 \) ^) o39.99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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