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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。6 F' z, \: U1 r7 c
控制转速的IC, SONY CX-032各脚电压值如图1 k6 f& [' }! z5 Q* w
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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 d- B( Z3 W& N5 K1 t$ x
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 6 {; L4 W# L6 t& m; d& A
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有人走過相同的路了9 W! ~" q5 B" U# v, o) M
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 # l: B; {+ U- _4 B+ [+ v
http://obsoletemedia.com/geeklog/forum/print.php?id=20254 @9 s5 q8 ?' ?" b4 v

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Chip CX-032B for Sony TC-558
" }0 [# M3 V% [$ m" {1 n3 RPosted on: June 16 2008 @ 01:43 PM ( z: H( c3 Y6 g1 W
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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- @# s, W% f; J& YLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.0 Q. u% @4 Y4 `8 T3 P  @" R; g3 O
A rare Sony turntable TTS 400 has the same chip used as well.
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9 c1 D1 S4 G! c$ ~The supllier on this link has the IC listed.
7 \2 s( D- n* n( }( O5 P0 y, X: L4 Thttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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, n# T% B$ R8 \: Z2 {' YThe German Bandmaschinen Forum thread.
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. f2 i; N* {9 e& Ehttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效), p, i/ W5 k( G! k
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Gru�, Raymond
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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?: D+ _2 ]: l& f  X0 e7 c9 T
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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.
' D% Z) p) c1 i- FThis 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
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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0 U* d. ]6 l7 h! K

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零件追蹤* M3 q/ P4 o1 V: C, s* j: o; N% t
http://www.globalsemi.com/productdetails.aspx?itemno=8750321004 \+ m$ m# ^6 p) p1 u& y8 a- V
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* {2 ^! y9 ]; I8 M/ A$ J
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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