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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 7 [3 Z5 C: b" J$ f4 d" H

( Q% y0 g% D  H% i6 W, V; w, l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。! S; o" i! d4 m( i
控制转速的IC, SONY CX-032各脚电压值如图9 b( Q' f9 L; V1 {- o
22-1.jpg
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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
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( i2 a4 ]2 x+ n4 Y. _( B& F' p% p有人走過相同的路了
! ]# r9 @( a# C2 O# r) Z  N+ Z2 M摘自   Obsolete Media - Forum/ G+ R; ~& j& K  k3 M( E  X0 X7 w

! ^3 R1 S0 q9 S! {/ Whttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025   q6 ]4 H+ H# F( P
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
  y- k& t) v: hPosted on: June 16 2008 @ 01:43 PM
  Y8 N9 w# d- [- P# B3 k4 W3 A& NBy: RODALCO
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Content: & u' j0 W$ N& P. G$ D9 s
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% K; [! d7 _6 V! e/ e4 P
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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.& Q8 {$ G/ X9 n3 y) P' i
A rare Sony turntable TTS 400 has the same chip used as well.& f  Q1 S& e, e3 h4 v# l: t) {
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The supllier on this link has the IC listed.& s. [3 J* T4 o& i2 L8 e  O% q
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)0 y3 N9 ^7 H; j. W0 M

+ B, S/ a4 B, JThe German Bandmaschinen Forum thread.
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, t+ ]$ N5 q4 ~http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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6 a! `( U# b2 @3 AGru�, Raymond
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% @- _+ W# C' Y! L# jChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM - u* K* }. s) }3 q2 \$ ]; p6 ?' d
By: RODALCO
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Content:
- P& [4 n+ q  c5 r<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.
/ F. I& j2 o9 D  u# J1 \This will help all Sony R2R users in the near future as well as our machines age over time.# x% i7 d8 q- U" l
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Kind regards, Raymond
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有沒有用零件做出等效的主軸控制還要進一步追蹤$ ?/ {/ M( x% ?' V$ v  d7 t

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零件追蹤
* L% l! }1 Y3 H: Y! z" b7 p4 G) shttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
7 [" W1 g9 a* W  ]5 S% j$ V39.99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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