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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 5 h2 X4 Q( t& u8 J

1 ]. L$ F8 }7 O$ `( N' T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。
# `. ?! g) j4 l" q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!: V' R# p+ \; c2 d8 h" a2 s
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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( c+ @& w, q8 X- R; B$ F有人走過相同的路了3 d5 Y0 _+ u7 G
摘自   Obsolete Media - Forum
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/ W1 I# n" n) r  K( @5 v8 K4 l+ ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 6 M5 b2 }: R' O. S8 b9 P
http://obsoletemedia.com/geeklog/forum/print.php?id=20256 g- ^+ n5 b# J

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+ Z3 P% ^5 M' U0 }Chip CX-032B for Sony TC-558
( f) `% \, m; ?! ^Posted on: June 16 2008 @ 01:43 PM
  o5 N8 F: }- {) I. U- lBy: RODALCO
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7 F1 Z" ?/ V3 Q9 f) Z) [Content: & V. k2 ~, c' a
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip., C) W$ F* R" A2 V% s
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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.& m, e  T8 [1 f- R& k
A rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.7 y: ^- h' R/ V; T- Q
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)9 Y- U* s$ O- Y" K, A

$ |$ e4 M0 U/ L2 rThe 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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! a# D! Z1 u# K1 j$ R0 v! QGru�, Raymond
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/ R0 a3 A0 \# {, s6 d" {Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: 1 Q" Z+ v9 S* i% |" x' l
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?& G) C3 @) z9 \2 C! B2 e
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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.) ^, W: _1 d) }+ r/ i' e8 l
This will help all Sony R2R users in the near future as well as our machines age over time./ C' g5 P7 a; \* {- _

4 v! D0 ]9 T( z0 N9 y0 uKind regards, Raymond
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/ W8 D. G3 f/ `$ ], R$ M有沒有用零件做出等效的主軸控制還要進一步追蹤8 @5 U% o* H6 [% v+ _: ^7 k
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零件追蹤6 V" W# ^$ C# Q2 ~6 E. x
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
' L$ n6 X) }" K* d) p39.99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; L( W" ]9 n3 s  J$ v3 W& L, Z% w3 Z
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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