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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 2 |; H5 u( N/ q  j7 {
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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。+ c! I' }8 b0 ^1 S! ^
控制转速的IC, SONY CX-032各脚电压值如图
% i4 I) w! R3 }9 @  C# _6 W" T" k 22-1.jpg % `3 [, B' R. B$ W, F# S3 {0 @" P

' K; L5 B* z3 O5 u是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!$ w" z+ m: @0 X) Q' u4 f/ |
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' F; f5 b) ]2 t2 @+ y+ P" W  p
摘自   Obsolete Media - Forum% [/ I/ n# y: a) i- S7 }( ]
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558
) N% o2 d! h* T( J8 wPosted on: June 16 2008 @ 01:43 PM
7 c/ w( H& F3 D+ z8 hBy: RODALCO
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# O) _) z7 z: [Content: + t7 z! Y; X+ G3 w* g8 {6 t! ]( y6 U

$ |5 K# n2 t$ o) EHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.: d( Y! T5 H* e2 H5 Y; V( x+ J9 U

1 `& G9 G" }+ a; ?/ A/ }8 G5 w1 ?6 NLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.0 e5 f) f+ G& 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.) H. t* L  g9 Q2 s6 q4 t% F
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料); g2 h' e+ ^% ^5 s+ X% W! Y) _

/ {2 Q6 C4 c/ o- b$ OThe 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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Gru�, Raymond
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# C2 ?' E8 }6 [5 pChip 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?
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8 K2 W& w1 O9 L2 r  Z& OI 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 {( s' p5 E$ x3 `8 C& w% UThis will help all Sony R2R users in the near future as well as our machines age over time.# A  F: F4 Y1 {: [( D; C* M+ u* Y6 @
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Kind regards, Raymond) P6 C* K! ~. I" P
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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
- }/ X* s6 L, K* @1 y$ Zhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
. `; C9 f: F6 {. O' E' I$ A, x39.99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* y: X- d4 S2 Q7 y3 `2 y8 {0 L8 R. x
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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