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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   V' w+ S1 ?# ?6 v) f, z

% }+ q* v) Z# [' 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。
# ~3 |: N/ w9 j2 i1 D8 S/ T控制转速的IC, SONY CX-032各脚电压值如图0 @/ `2 g* e! b0 }, C8 F. \
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 & T* p8 ], L+ `5 n5 N+ E
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有人走過相同的路了
4 x" U( V# N7 h+ k2 d# B9 ?摘自   Obsolete Media - Forum. i) [5 D, f! h$ ?5 Q7 R- L9 n3 w+ o6 Q5 n

: T/ j/ X; @- y/ `9 j8 u: d; _! Lhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
3 B; Z( L- F& u. ]+ U0 C* ghttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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0 k9 i5 L) }% X' T; _: e' C9 VChip CX-032B for Sony TC-558. o* ]0 {* v9 [
Posted on: June 16 2008 @ 01:43 PM
1 g) o& j. j' F0 \8 P, i1 SBy: RODALCO
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  G! K% q; K- mContent:
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  N: ~" W7 W& z9 E  p4 S  JHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.$ c. h0 `( g% B% m# B' w4 Q6 K

( }+ h& a" _! eLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.! J" C2 q/ a6 @9 P- I& {
A 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.
9 h+ ?* J: a, [. \) j/ Y. I9 shttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)" m# m: f0 G; c2 L4 y7 K& i  T
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The German Bandmaschinen Forum thread.
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( _. Y  a% z; Z; [http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond9 s# h8 ^3 H! \0 I8 [; D
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
$ A7 T) `/ B" d+ R2 }By: RODALCO 7 ?5 z9 c  v7 d* {6 E: _7 W+ Y. U
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Content: : P( H$ F  D' 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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4 Q/ h6 N( R* v+ pI 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.6 A( [! N6 d5 b0 k+ I( p. i( h/ G( E
This 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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# O( F2 m+ T7 U1 t有沒有用零件做出等效的主軸控制還要進一步追蹤! j, ^5 @. S# J& t, H9 x
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零件追蹤
% w+ s& O) ~- u+ x4 j* Bhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
) Z0 i# M! i: i39.99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- {9 e3 j0 l! D7 x0 c8 y
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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