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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 3 W6 o' o  g& f" m9 i! P

% e& ^# [" e6 X2 P/ P' b, o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  E: K+ A% y. A; t! Y
控制转速的IC, SONY CX-032各脚电压值如图
, H) d9 y+ C5 h% w9 V 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!# S+ i3 A6 ~; W& J% ^, t5 c+ f
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 % G: \* b7 L9 i& t

  Q2 U& Q$ d% N有人走過相同的路了3 H$ z3 d/ v/ E/ H) S) E5 n
摘自   Obsolete Media - Forum
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$ w( y' Y! C; n, k& L# h+ y% q, ?http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 8 n7 a# |2 p3 f
http://obsoletemedia.com/geeklog/forum/print.php?id=2025( H2 S/ a9 ^8 R8 P! v  T- Z
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Chip CX-032B for Sony TC-558( @7 a$ ^3 l9 {# Z
Posted on: June 16 2008 @ 01:43 PM 2 U- t4 \4 i  Y- _; L- K
By: RODALCO
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  ]: ]1 x% L) Q* ^, D4 E5 AContent:
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' }$ X& {- |5 M+ bHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.7 g! S$ t' w3 `2 R( t& h; q  i8 f/ ^" U
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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.9 f, L5 S" K8 H' [4 B! \
A rare Sony turntable TTS 400 has the same chip used as well.
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  F. ~+ k8 g" U! d$ T" w5 C& SThe supllier on this link has the IC listed.1 C. w# ?3 e% C% }+ L
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)' `* u) g( U5 i! m5 q) i/ [
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond2 M) e) ~* e/ u$ E

  \9 Q0 V3 P& h, B, CChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 U/ @! f& Y" P/ H3 cBy: RODALCO ! `0 X; M$ c  U0 m4 ]3 s
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Content:
! M9 h+ V6 @5 v, y<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) v. j% Q4 L: i+ l( r. o

1 {' N) l+ w" N: \  @1 ~1 UI 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.
" k- b/ D. @4 j0 b* ?8 HThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond- b$ i  M2 ~% ]7 {* y3 i8 ?( z
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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  q8 J/ M5 u2 x
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零件追蹤
: B$ h6 N1 |" C% [http://www.globalsemi.com/productdetails.aspx?itemno=875032100
. S/ {/ Z7 k6 d; c; M' a39.99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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