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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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6 o: {! [5 O# s3 f  ]- T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。: \' \0 X: M/ f& z' f7 f* \! F
控制转速的IC, SONY CX-032各脚电压值如图+ ~! ^* K/ W5 E4 B3 o
22-1.jpg
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  B' L- o: f% V6 E  Z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9 g5 I8 N6 @/ `5 l
摘自   Obsolete Media - Forum# B" u: m1 Q) _; m8 y( R9 I/ x

5 t' X5 Q" P2 _7 _http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 " A$ o& V" e; o5 `3 c' _) g9 S4 D
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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! a) y1 H7 o# J, {9 j8 m! O7 C: bChip CX-032B for Sony TC-558
  e! m" E! t  E- f, L: x6 yPosted on: June 16 2008 @ 01:43 PM
- k1 g0 ?+ j4 ]: W# rBy: RODALCO
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Content: 4 c; T* v) Q/ f: a
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.9 F+ ^) e, l9 {9 a9 s
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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., [1 N6 X$ V( x; f5 T6 J0 i" R- i% C
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.% [4 Y8 B, {) |% `
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.7 O2 H2 k+ E( A* A% H. I0 D
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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8 @% `  }9 I/ _: V9 ^$ gGru�, Raymond( V" X* o5 S# s0 \
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / [' f' X  y' }! T
By: RODALCO
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Content:
' o4 C! K2 g9 ^<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.' x  P( O+ L2 X: K
This will help all Sony R2R users in the near future as well as our machines age over time.4 [  M# m" V) B& y

: |" k) i. G8 z1 e' bKind regards, Raymond
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- p+ J$ g4 F1 m有沒有用零件做出等效的主軸控制還要進一步追蹤& F6 {& g* h# B* Y

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零件追蹤
. |/ ^* `2 G5 l# [/ T. [4 Xhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
7 B, x, u& R7 v- A% R/ F; K$ u39.99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
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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