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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 8 _5 P. t5 g4 B: w/ A. C+ g

- E9 t0 \' n5 n3 u. w! s5 u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。
  Z6 G" i: }; _6 [- H1 b; G# d控制转速的IC, SONY CX-032各脚电压值如图
& R+ I' D7 v! `5 p8 } 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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1 c* X4 v8 p. G. p% V有人走過相同的路了
, j! q1 ?- H/ O1 j摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 9 P' a$ j( H, ~& f* d/ e# b
http://obsoletemedia.com/geeklog/forum/print.php?id=20253 C& Y* @2 o: G6 K! x+ u. f

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Chip CX-032B for Sony TC-558* B8 B3 \$ M2 m  s4 C9 P3 }
Posted on: June 16 2008 @ 01:43 PM
3 J( J/ m& M9 m6 xBy: RODALCO
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" k& ?9 P" C  W1 X& }- M  iContent:
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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.
+ u+ `& r/ O. U$ L' eA rare Sony turntable TTS 400 has the same chip used as well.) D  h' J4 N; N5 s2 ]* s* E
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The supllier on this link has the IC listed.
2 H* M( u( c. F/ t- A5 q7 D" B- I2 Uhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)" C5 Z" Y* O7 ^$ e( e
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Gru�, Raymond" w1 Q9 x) R: S

1 H5 f2 @* D+ ^! {: V/ AChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: 4 H1 }* p, O  G  }! s9 O
<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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0 Q3 m5 o+ _! J3 h. \- fI 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.
! f( Z: l) n/ |* }+ B' ?This will help all Sony R2R users in the near future as well as our machines age over time.
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; B5 a4 C- }( ZKind regards, Raymond
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% B/ X$ L/ R0 p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
' w( _0 ~- Z7 q# Hhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321007 t8 g6 X! V! {8 T( Z( W
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
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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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