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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。
; {) }1 A0 C/ k1 V- g控制转速的IC, SONY CX-032各脚电压值如图
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!# l9 _# ^' {( T/ `, @
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
) d9 S, o7 s8 E摘自   Obsolete Media - Forum
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& @0 I- t" o; i; vhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 % q; |  J1 Z' X9 U( {) G6 |
http://obsoletemedia.com/geeklog/forum/print.php?id=20251 @7 l, q6 `. E1 C# ~! k
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Chip CX-032B for Sony TC-558
0 _/ J0 k# |7 T" g8 o( C/ VPosted on: June 16 2008 @ 01:43 PM * n, h& b# Q( c
By: RODALCO ! w+ Z9 n9 Z+ C0 X/ W5 p

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1 s& C+ U  ~4 @# I  s6 Z$ [Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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. I5 p+ j$ ~) hLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
  c$ x: P' F/ M( I* w! W: a2 Q. sA rare Sony turntable TTS 400 has the same chip used as well.
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' J6 S8 |* F" q, ?. K  \$ X" mThe supllier on this link has the IC listed.. d* d$ M& \. D1 ?8 F4 u) i; J' l
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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. L, M8 f. |8 i- J+ B5 UThe 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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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 0 [  Z( x9 F9 Y( u* ^" a
By: RODALCO 5 E- X6 }4 s7 I, w
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Content:
- q+ \2 B" Y5 l. G<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?0 e; n# K8 D- Z% i. \8 R
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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.
- ]: Z6 ]% b7 N3 TThis will help all Sony R2R users in the near future as well as our machines age over time.& m1 P0 j5 w: `3 n2 Z" |
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Kind regards, Raymond' n9 t5 h& I* M; w6 o9 F# Z
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$ Q( B1 S& u1 C9 u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/ v- Q3 }  Q" q3 [; Y
http://www.globalsemi.com/productdetails.aspx?itemno=875032100& X7 a/ d2 q. ]; G. W' S. Z
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2 \3 j" @5 G& k4 t5 i* |
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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