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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 s0 Y1 j( `( v7 |7 P' a控制转速的IC, SONY CX-032各脚电压值如图, n5 a/ k2 ]( N, 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
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有人走過相同的路了. I* u7 L2 K  D* t0 B/ N. L
摘自   Obsolete Media - Forum, T3 M7 ^  Y: P; O: r1 L

2 f5 a6 n* v1 i9 ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 8 e* n  B9 E1 i. M! p
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
8 t( s3 S* p9 F# w/ y4 H2 L8 Q, uPosted on: June 16 2008 @ 01:43 PM ) O; Q3 G% j" T1 r$ M2 d
By: RODALCO 4 {  H# C; X6 p/ _% D. ]+ q9 o: E
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip., r3 M; b7 Q& j( J; c% n) _* b4 _

; @5 D$ D! h# MLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
. O3 t0 v' |& v% F" HA rare Sony turntable TTS 400 has the same chip used as well.
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# U; \; u7 X( Z* Y4 K2 a9 nThe supllier on this link has the IC listed.: Z) c4 W0 B6 [4 f5 `! Z3 X( t% S. s
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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' R( s8 u: _3 }( QThe 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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. e, N5 m1 n' K4 ~Gru�, Raymond
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& J; R5 r' e* o5 d& ?& `Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 6 T* V$ T$ m' K' |( n
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?& p7 R( \/ C, s  E( _! r9 F

& Q% e7 ?: ]! D  YI 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./ ^( E! c' u2 |4 ]' A; R( P  {
This will help all Sony R2R users in the near future as well as our machines age over time.0 T! x( i* n4 ?& d- g$ U
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Kind regards, Raymond) N7 T3 @9 [: _$ a+ R

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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 h$ f" {* Z" m; f3 V! u

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零件追蹤
- g2 Y0 h7 \- M8 B" Fhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100' Q: S. V- p0 H% G! M+ ]  a& ~9 i
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% e% r$ q7 r0 `1 R3 E# X7 C- ]8 u* d
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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