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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。# A, n" j3 n, q% }' b5 l7 J
控制转速的IC, SONY CX-032各脚电压值如图
4 }2 }" P, W6 k- v4 o 22-1.jpg 4 D1 X: m7 @& ]( D0 l! o; n
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* Q2 J& V  l' I
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, P3 j. c& ?1 c
摘自   Obsolete Media - Forum2 e# i% W5 B# |2 Z1 P  f" O
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
# [. I0 l/ k: ~/ Y7 phttp://obsoletemedia.com/geeklog/forum/print.php?id=2025& ?' R2 H  M6 i$ S: A: }! ~

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Chip CX-032B for Sony TC-558
! P8 o1 ^' p8 _1 ~/ FPosted on: June 16 2008 @ 01:43 PM
) {- b; k8 p2 G" B. P1 H9 z5 C  XBy: RODALCO
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Content: " C+ t! b: U. v" }6 I
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.9 u, R: ?4 L( a# L1 v3 E5 W
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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.+ L$ r1 v' R. J( {
A rare Sony turntable TTS 400 has the same chip used as well.
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4 N1 |: Y! K9 I  EThe supllier on this link has the IC listed.; b; d4 ~( |* ?; y- `. {* w1 e
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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& f. |/ X+ [1 x* G. oThe 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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Gru�, Raymond( n/ V2 \4 O+ L: o" C% T/ `" _

' K  q* F) h9 \  j( v! u7 h( oChip 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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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.
9 n, B8 h4 X: RThis will help all Sony R2R users in the near future as well as our machines age over time.
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9 F+ C- j5 i' t# r0 M' x, hKind regards, Raymond1 j" a/ k+ I( ]  a: f: n* l

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( Z! W2 L4 P( R" M1 n有沒有用零件做出等效的主軸控制還要進一步追蹤  D* z. w% P# r3 l2 `! P
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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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