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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 & T. Q! ]. ]) b  F6 U; Y
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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。
: r! M8 v7 w1 F; f0 D- l控制转速的IC, SONY CX-032各脚电压值如图# k: y' q% U" ]5 ^3 m
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 $ }. S: w3 @9 z2 T

7 E6 a2 w9 O( A3 k, ]/ O. R有人走過相同的路了
3 y& A7 X$ ]3 j) z摘自   Obsolete Media - Forum  k% i. s! J5 ~8 j. n& y! O0 S
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558: g3 m3 Y7 l9 _
Posted on: June 16 2008 @ 01:43 PM ; M( o0 D/ n8 q) X0 n$ O5 G
By: RODALCO . G1 ~$ d& O4 k* v! {9 n5 L( {

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) P- w/ g$ Y( e! uHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.( v! z& S! a/ Z6 d# L5 W5 E" k/ j. I
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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.3 Q3 a( f9 ^9 P1 x; B5 w
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.8 w# V) h8 D8 z  _) e% J( V
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)" `: _* \5 r4 P3 M: d( W: o( R4 d
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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)- Q* Q/ q$ O* R& t! ]- d& ?) v0 E

! }! j( G! z9 T0 F( M& N* N* aGru�, Raymond) t! q9 `# f, ^4 }

1 a9 G2 ^+ E; G* x5 RChip 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?6 m- J& |- ^. u( h$ 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.+ U3 k+ g5 f, 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; X+ T$ ]0 J/ a" [- A$ G% E
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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
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零件追蹤
$ G- |5 a5 p% h9 F7 q. Y& Ghttp://www.globalsemi.com/productdetails.aspx?itemno=875032100: }8 I( u% O  f6 {
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% h( M1 N1 ]) E3 N0 v7 [
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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