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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。
# e0 u- w  @3 p1 g% x/ n控制转速的IC, SONY CX-032各脚电压值如图
6 J9 F( `  |, f: M; U 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!; E* O" y* m' o5 Z$ f" 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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* L8 v, m) {( P3 [: q& q有人走過相同的路了# u, S' w: b8 T, q6 I
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 ~% `7 C7 X* Q4 y
http://obsoletemedia.com/geeklog/forum/print.php?id=2025# @# x: B3 M& w9 Y* B

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Chip CX-032B for Sony TC-558. [/ Q" w  z6 b; p  k
Posted on: June 16 2008 @ 01:43 PM 3 P1 q' A! I0 _% ^) M) @
By: RODALCO
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6 b4 Q* S* r+ q$ p7 h* FContent: ! o7 _! |7 t! u- ~$ o, ]! M8 z- A

' Q9 B) Q6 M$ B; ^9 wHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.' j* {  v8 z4 o6 I# q) v  Z
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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.# j: x! t0 q3 m# C+ J
A rare Sony turntable TTS 400 has the same chip used as well.4 I7 ]; H  N0 k

& B& L9 D* }  lThe supllier on this link has the IC listed.; j. [5 z3 m* @
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)0 Y  ?! k( U/ D+ a

2 M- x3 v8 a- N  A- l0 bThe German Bandmaschinen Forum thread.7 C' G/ T- ^/ d3 p8 B
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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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9 v. z, P* s& bChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
0 [! L) p, O7 x1 r% @9 I; UBy: RODALCO
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Content:
. o% [0 T+ a8 N% V* y7 v<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.
4 Z6 J* m. p  L8 Q* V3 n" I# fThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind 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0 N( x; L- P9 c

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零件追蹤) ?/ ]+ J3 @  ^5 p8 e3 p  q) B
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
* T1 k  s3 q% I4 _. j8 N7 k# W) h4 k# [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6 |" ]' @4 ?& w
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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