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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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: L5 V1 s: }2 Z# g9 p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。
) b: ]. J" a" K* R  `" R7 m控制转速的IC, SONY CX-032各脚电压值如图  ]' S8 u% j; ?4 w* |) Z  Z
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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 $ c( Q( j  M7 w) N
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有人走過相同的路了( l7 w' L; R* O* O, \/ C
摘自   Obsolete Media - Forum
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9 t2 M: k) U$ q* t) P1 ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * q! o2 z' y2 J1 ^. ^3 ]6 Y
http://obsoletemedia.com/geeklog/forum/print.php?id=20254 I' }" R# O. d; g5 `' P# c

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0 q: }: g: E* o& xChip CX-032B for Sony TC-558
  H* z- a+ z" L* APosted on: June 16 2008 @ 01:43 PM
/ l; H; D" _( R% }By: RODALCO
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.: n6 e9 P; C( ^8 e5 ~; l2 J: E9 k

+ V: k# o& Q! i: L0 [Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip." P% U0 G# r) }" ?3 L
A rare Sony turntable TTS 400 has the same chip used as well.
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# u7 J! A& }) j1 t9 N0 B- XThe supllier on this link has the IC listed.
, i2 j( W9 j/ P: o( K, c9 \, }http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)! z8 W4 Y; n5 m) f/ ^; H

: P3 L; V, n( k' J  q8 J# V. yThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)  k8 i. `4 F0 A. K! u) M4 g
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Gru�, Raymond7 w/ M  Q% j6 ^- u

! S7 `( `! x, FChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 6 [' C, i  m! o3 M9 ~7 A. E
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$ M- d' @- x  h4 i( q<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.
* E5 A) G) @5 W$ r3 wThis will help all Sony R2R users in the near future as well as our machines age over time.+ s8 T3 ~! Y; R

& _2 {5 I: h# \! c+ S% RKind regards, Raymond1 z. G; D3 V6 N/ j8 U6 n! h
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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
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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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