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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 # h- E1 g6 I+ W3 p  A6 \( z- O

' W7 x: g6 [3 C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。
- L' M$ Q0 u( {( o" O控制转速的IC, SONY CX-032各脚电压值如图
- f5 t: _3 X# r5 e5 W0 v' J1 v 22-1.jpg
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2 Z$ k1 B1 Y4 ]5 v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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0 v* J; o0 _8 }+ D9 n有人走過相同的路了6 [: B  _, ]1 d
摘自   Obsolete Media - Forum; t! n3 y) `( u- v# R

& B  A% E6 L  `4 k4 Q& bhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 x6 u+ `" h% M. a% n3 Y8 `% `
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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3 Q# b% t% u0 L. V/ p. fChip CX-032B for Sony TC-558
* ~9 y8 I* H" @3 ]9 E2 YPosted on: June 16 2008 @ 01:43 PM ! p5 }" m2 B4 V! S8 v$ t" g( J
By: RODALCO 0 A8 ]* \% _. C& n! K0 M2 |

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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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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.7 j5 b2 |5 J6 ~+ }. M4 m# g
A rare Sony turntable TTS 400 has the same chip used as well.! J$ p: M/ V5 I- D  n

$ F; s6 w* v3 ~The supllier on this link has the IC listed./ u! b7 [  v# V! V! k5 @- e
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)! t2 Y8 w  i  b5 d( p

  K/ a0 F6 Y" k) d1 N* sThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效): z7 s. _9 U5 ?
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 5 B3 _7 l! M0 C+ R/ p
By: RODALCO
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Content: ! a, X0 D) q4 s
<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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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.+ c; _2 d# W  I) _9 z! d
This will help all Sony R2R users in the near future as well as our machines age over time.
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( c1 X( U, D& O* M. _" FKind 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
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零件追蹤/ x2 Q# T( N* N4 h2 ~
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
; Z, t0 F( }& M5 }# V# F7 o3 l39.99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4 S' W5 v- [# X. g
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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