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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 + q# z# u2 r) Y8 ?; r( W2 M& h

! T* C+ d7 U) S4 H, X% [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 `. ?* G  m. ]& ?控制转速的IC, SONY CX-032各脚电压值如图
! T/ ?0 ^" k; p. h2 i1 V 22-1.jpg
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. o* q) U! W' ]3 Y" s6 I3 B是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!7 j. M: B( E4 P! g% D2 [
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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% T/ }. L* p; M6 F有人走過相同的路了
0 y6 B4 b- e3 H摘自   Obsolete Media - Forum/ l9 z* f5 [# B0 u' u3 y3 \% i: ~! B

* f: R$ \  M; k) Z# W" hhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
8 b* e% Q+ R" Y) Whttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
4 u$ s- \5 s( P  t) e( _6 fPosted on: June 16 2008 @ 01:43 PM
0 M) Y8 W/ E3 W  Q) n6 D5 H# V$ r+ w8 RBy: RODALCO & z3 Y5 S+ d+ e/ W0 r7 o, W4 i
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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5 T( x7 ]; a# m, m6 ]Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
- O9 V2 \& @1 v* j' l0 o+ SA rare Sony turntable TTS 400 has the same chip used as well.1 Z1 P6 p3 C4 }' Z0 x* J4 C
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The supllier on this link has the IC listed.  u8 m9 j4 T1 Q& |% v# ~/ h5 `  c" B
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.: O4 g2 V* P7 C: r" W
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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. j7 ~: a5 e; M% a# }  kGru�, Raymond: P0 O+ G3 C) U& f
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
( m5 {8 [! |, W  I4 JBy: RODALCO
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, x5 v$ t: z5 b' D# W: }Content: * D9 D7 ^7 B+ p- s% \+ {$ Z
<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.
( @' w; {# e2 A& h4 R6 bThis will help all Sony R2R users in the near future as well as our machines age over time.
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  c1 g. Q& B* l$ XKind regards, Raymond1 k$ e( n8 Q5 p+ {

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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5 e0 g; Q& p, z

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1 T3 M2 u) d$ e2 N* Y零件追蹤
$ D4 N" R  c8 S* l, d& vhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
, c8 L9 _7 l! ~4 Y39.99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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