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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。
! P. Y1 S9 Q9 Y$ s控制转速的IC, SONY CX-032各脚电压值如图& y+ Y$ h- s( N2 W7 L  `1 y
22-1.jpg
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4 H  m5 p  d4 A$ g# e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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有人走過相同的路了5 A3 `) A- F; t  a
摘自   Obsolete Media - Forum
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- U) \( {( Y# Thttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
4 `  G$ H5 F2 n1 J+ i6 nhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558( `7 }/ p; W0 N/ q5 m
Posted on: June 16 2008 @ 01:43 PM 3 A7 \1 g, [6 M6 N  e' Q( Z
By: RODALCO " v" N2 R1 n. z: U8 ?3 z( x
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0 \5 x8 F* I: h; HHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.& E8 X& F, E2 y
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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.
! z- u& y# D& `; z8 e8 SA rare Sony turntable TTS 400 has the same chip used as well.& a: ?8 e; J- ]# |0 T7 U2 R

9 Y( z9 H. l* |$ m+ r$ wThe supllier on this link has the IC listed.
% `, u7 s$ w0 e& ~9 W$ e1 ehttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)) L, m3 L9 [" ]6 N) ]" P* K
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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)/ R$ F" i, w2 R$ g; a+ e) p
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Gru�, Raymond$ _8 u+ ], d+ O' q, G; M
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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<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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+ ~8 j) p  I3 |: [$ g5 YI 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.
; x: X/ S& D4 U$ w+ y1 V" IThis 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' m# T, q- R. e8 V  y9 f: N8 ]

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' ?  S0 A- t5 K- l3 i7 F有沒有用零件做出等效的主軸控制還要進一步追蹤" ?2 j4 E1 m' I/ [

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零件追蹤
( e& q1 l8 m" Q; g% ~2 i! u' {http://www.globalsemi.com/productdetails.aspx?itemno=875032100* d: A3 u: `5 K9 _) t
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' G( L- _, g* {. w+ \* W1 j+ }
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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