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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 Q: X% Y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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' y8 z# D- M5 O! |0 _7 H有人走過相同的路了; z7 c& f6 `5 Y, P, S7 u5 t
摘自   Obsolete Media - Forum
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4 P. |9 @1 i# w" C2 c( Ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
! o6 F3 K$ @- D+ e% I" }5 dhttp://obsoletemedia.com/geeklog/forum/print.php?id=20256 b; j( l# j- m! Z/ P: x

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Chip CX-032B for Sony TC-558
/ ~; j$ V6 t. FPosted on: June 16 2008 @ 01:43 PM 2 N5 i7 l. ~) U( j1 \
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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( d$ c0 [1 v3 A/ z/ uLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip., {. N3 X/ w7 {3 v4 X. N
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.
8 \3 U. \5 U: |3 j. d, i& Qhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% f% `; w/ ~' r
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The German Bandmaschinen Forum thread.
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7 ~* S. Y4 ?: R6 bhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)# u( B" ^  h- @% J+ K: G- m
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 4 `+ S0 c1 {9 _2 o
By: RODALCO
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Content:
% E" u8 y0 U$ `  t- P+ n<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?9 N9 h. e. T" ?+ `2 r3 I

# s2 |' f2 h( ~( I" C9 pI 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' q7 \$ x& [! a+ ?) UThis will help all Sony R2R users in the near future as well as our machines age over time.
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) Y1 s# S8 y. e3 V7 n" W3 d& q( ]Kind regards, Raymond" i3 G" P; S, b* C9 H: I8 J+ }% |0 R
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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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http://www.globalsemi.com/productdetails.aspx?itemno=8750321004 Y8 I$ K% Z# R+ }( a
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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