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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。
- J" C4 c6 C# K4 _6 s8 @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!7 l; r# ?4 a+ l
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 : C8 S3 W2 i/ g
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有人走過相同的路了6 U9 p7 y' A1 n, g$ p1 `! \2 `
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
9 L5 o$ M; T1 |& k& xhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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3 l7 y0 f$ a7 E; A4 D6 @Chip CX-032B for Sony TC-5588 c, D: v9 w; Q
Posted on: June 16 2008 @ 01:43 PM ( m+ M, ^6 N9 Y" o6 a4 o0 Q2 p
By: RODALCO
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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.' h) h/ }8 c9 E6 m+ l$ |) N8 E
A rare Sony turntable TTS 400 has the same chip used as well.
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" M4 w: P( c" ^9 N' P# M# H1 FThe supllier on this link has the IC listed.1 Q& f% ~( l! D% e5 N
http://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)
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3 ^8 \- Z  J9 fGru�, Raymond# I1 ?/ I. w, ?% b7 U

9 G/ {/ B) _/ W  p- d9 H; k: OChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
% E& J% L: C! k1 l( m) VBy: RODALCO
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Content:
% X+ \. w& ?* d4 d2 I. g3 S7 _2 }<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.
# [+ Y+ S: r. U. EThis will help all Sony R2R users in the near future as well as our machines age over time.) c2 F0 d6 w1 m, u9 Z
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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
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零件追蹤2 N% R. j  O; C; t$ n" ^
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
) h5 F& D2 \1 x9 ]( n# t8 B7 H5 Y39.99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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