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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。
2 I7 f8 u! ^6 p控制转速的IC, SONY CX-032各脚电压值如图
3 u; d7 N8 v0 F; | 22-1.jpg . s( ~+ _) |4 J2 h0 {5 b/ H" t

3 s; _, U! @7 G! K& [" H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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有人走過相同的路了
# o8 {. Z$ d- j2 E$ n摘自   Obsolete Media - Forum
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, w- [& E" Z7 ^) zhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 6 g7 E/ r$ H8 Q) O0 ]( h! L
http://obsoletemedia.com/geeklog/forum/print.php?id=2025" h  w& Z3 M2 h/ U
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Chip CX-032B for Sony TC-558+ A! ^* f8 _. j% F
Posted on: June 16 2008 @ 01:43 PM ' t3 i4 e6 J) O5 o; ~& K( _7 G0 l
By: RODALCO
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7 u* z. I5 D) \; j) ZContent: 4 k2 s6 f8 n- R- i; J2 Y( u5 o: U
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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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; h9 [% ]# k8 ~Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.+ `& Z% y/ a5 O4 c; F- G2 S; {
A rare Sony turntable TTS 400 has the same chip used as well.' O! ?; a, |* y; @4 r7 ?% r. o- m& }+ o* \
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The supllier on this link has the IC listed.
) W  u$ w6 F2 m/ H! k$ |% ~0 ohttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.+ M  c0 D2 V% u$ L/ ^

$ G: X/ F6 `. Yhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)1 c& M' w! _  W2 E

( ]# v5 V* }" S; F) ?Gru�, Raymond3 I: [. g8 [8 G: b

' O) h" k1 `  O8 s+ |Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM , J# N# p) b* s7 O
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?+ [0 x4 E" N  s, M1 G- k  h$ i

. X7 Z, W% H. z/ P8 L8 lI 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.
; C& |. _4 ?! V! f5 }This will help all Sony R2R users in the near future as well as our machines age over time.6 P0 I7 f. W4 S) Y; u

* K( U& [- a! W1 |& ^+ UKind 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* d& O5 }1 o5 W* W4 N
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% @5 `; C, L+ @2 _" F- F& b零件追蹤+ U0 L1 s8 S+ P* e4 C" ^
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
% \% T6 ~8 y$ [. e6 C% @5 H) Q39.99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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