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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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3 _2 u. ^2 R- \% N0 f" o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。
4 m8 m! ~  \! ~5 S7 w* [控制转速的IC, SONY CX-032各脚电压值如图
0 Z; T" J& B0 S5 S) Y) L3 I1 s 22-1.jpg
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! d# ]; t& `% M' J是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* T& i+ ]: G; R) J1 q! {, t7 z
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 0 i$ N, N" q6 A2 X

+ k7 O' x/ `* H3 a7 `. Z4 N有人走過相同的路了  [  [4 d- P  i0 X, R2 R# p3 D
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ) c6 u( f* I3 P7 M/ v
http://obsoletemedia.com/geeklog/forum/print.php?id=20257 U3 @. l. I9 ~' e+ Q8 f7 i" X

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Chip CX-032B for Sony TC-558
0 G* e) H0 q9 ^; A$ ]Posted on: June 16 2008 @ 01:43 PM
. |5 Q+ \# i. j& qBy: RODALCO - h/ t; X- J6 Y- y% [
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Content:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip., N5 e0 I# j8 f( c+ C
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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.7 Z* ?  L  b3 |
A rare Sony turntable TTS 400 has the same chip used as well.
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% T$ V9 @+ @0 N; E- IThe supllier on this link has the IC listed.
/ i( X3 x$ j# [$ D( e; Lhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)2 U" z$ s5 M- c, w
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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)
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Gru�, Raymond& H& G6 y# g& Q- N+ D1 [  R$ E
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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?7 J1 x6 r$ l  S& {5 B/ ^: G
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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.
0 N' H, {2 i! {- |# |This will help all Sony R2R users in the near future as well as our machines age over time.) @7 E- Y% Q! m3 g% v( w
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Kind regards, Raymond- v# z/ X) u4 b; H( ~; u! k2 U

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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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, D1 X, Z. _$ A* X/ b5 O零件追蹤
( K! B1 {) X( v, d! M2 ]http://www.globalsemi.com/productdetails.aspx?itemno=875032100
5 A- a4 W0 s; W4 Q2 [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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