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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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( H4 e$ U6 Q6 ?1 o* `1 N8 e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。
" U% S% A; |# q% n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!
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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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" x4 X( w) T4 M2 C有人走過相同的路了) x; r# f! L* b5 d6 s
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
6 o2 Q* o, t9 T& k  F& I! \http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
6 P. M) @+ M. @" A3 M1 WPosted on: June 16 2008 @ 01:43 PM
( w9 f' p) A. {6 qBy: RODALCO - i! y/ f3 `6 v0 m- O
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Content:
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& \  x% ~6 ^6 K( JHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.1 i% c( X: u8 Y/ W# R; A
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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.
9 f) J6 Y7 X5 n0 R; mA rare Sony turntable TTS 400 has the same chip used as well.4 a* X2 z, U+ ]' o% C; U

# a" T3 ^; u" a: ^; SThe supllier on this link has the IC listed.
& a- H4 A+ }+ c3 R% E! ?http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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5 w# p! ?+ a& W. tThe German Bandmaschinen Forum thread.
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# ]! \' q- o# phttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)7 y$ N* q+ r# U9 K/ n
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Gru�, Raymond- k5 Z" ~6 Z. f( V: J; }' L2 `% L
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ; w# O  |3 v3 c* z8 f( a! j2 K5 G
By: RODALCO
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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?1 r8 q. Q; x- e6 Q

: q' U( v3 Q: y- _3 B6 rI 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.: l7 g3 g! g/ Y: ^
This 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& C8 a# @" _, ]+ G. ?
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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8 b2 g3 M+ W( M: k8 d# w' ^
http://www.globalsemi.com/productdetails.aspx?itemno=875032100! k; P# J, \# s- l
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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