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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。4 D% Q6 `4 W, v5 w  p
控制转速的IC, SONY CX-032各脚电压值如图
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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 5 t9 u5 c8 X: \1 z+ ^/ i

4 F; k5 b9 p% g- j6 p' \2 n有人走過相同的路了8 H8 A4 O3 \& w1 [8 y" ]
摘自   Obsolete Media - Forum
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- t8 t# o2 H" Phttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
$ G3 ~  I# t9 x8 B5 _4 ?& @http://obsoletemedia.com/geeklog/forum/print.php?id=20259 d8 Z! G+ n7 Z8 C/ V& c4 V* ]; _. Y
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$ E  [( {  \% ^5 a7 \3 ^Chip CX-032B for Sony TC-558
; k2 K9 n4 O4 e% R: r( @, lPosted on: June 16 2008 @ 01:43 PM 6 x  ?) Z; ~6 V+ {- T
By: RODALCO
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+ o8 C/ h/ ]8 f% H& UContent: 0 s* m4 D' K" n; O4 @$ t

* K4 B# j- K; o  t4 ^* MHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.. A* a: H* t- K" E! _% Z% |3 m

! R9 o1 A8 g) r- E: NLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
. H* S0 W8 l% I% lA 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.3 z2 c4 f5 V' V% F. S" I
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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5 x6 y4 x$ W- lThe 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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; F: B2 O6 w) c& @Gru�, Raymond4 n+ |8 L1 L' X$ H7 Y  N
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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?+ @* {  @0 D5 U; X; b2 {: W( y
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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.
: H' t$ |5 Z1 ]7 zThis 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
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6 h' C/ {1 \, Y: O& B: q: ^有沒有用零件做出等效的主軸控制還要進一步追蹤' s) V1 e. }& z6 L* e/ U- @% e' `
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零件追蹤
  L+ g$ S5 ^! h# chttp://www.globalsemi.com/productdetails.aspx?itemno=875032100: b! P" w' d& {4 u
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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