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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 : E$ ^, ^+ M, a5 E. B& \2 G

& T8 ]% F4 O+ |. {) D5 ^% 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。8 k  U6 a& I( m$ a5 Z
控制转速的IC, SONY CX-032各脚电压值如图* X' J$ f( w2 G! J8 n' j2 o% \/ E, O
22-1.jpg
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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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有人走過相同的路了
3 y5 E4 w" l+ [, x0 p摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 : _7 S& ]6 g6 B$ q7 e+ V- E6 w
http://obsoletemedia.com/geeklog/forum/print.php?id=2025$ V  M# H) z4 g; h+ V3 w

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Chip CX-032B for Sony TC-558
1 `1 V7 b+ T' B( G* D( XPosted on: June 16 2008 @ 01:43 PM " r' D; b! }4 I$ ~
By: RODALCO
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3 K( @, `. P' ~) E5 aContent: 6 e/ X% H- G& d

/ x/ Z/ Y- W+ [; k6 D+ ]4 ]. U9 N) NHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.' i3 N8 R, Y# i* o* z7 y
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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." A% c( d- a0 y1 E- ^0 i( `# l. S
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.
: f0 @6 i+ w, e1 J0 zhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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8 B8 Y  K) \1 Z# P# K# MThe German Bandmaschinen Forum thread.
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6 V4 X: L# q) z5 C- M; `http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond( U% C. o' I2 K% g2 z4 s4 q& {# X* _

% E5 U0 D7 e( cChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
/ @% c- b, ]; E) Y0 m$ I* bBy: RODALCO
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0 U( o$ b4 @$ h  ^- G& R- ?Content:
) O& j6 s2 h$ E: j! f$ b5 x- @<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.
, \) b& }* l. H! N. n: d( ~! v9 X! ~This will help all Sony R2R users in the near future as well as our machines age over time.
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/ ]. e! Z& K, c9 ]Kind regards, Raymond
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- `" A( T3 u, u' C' j7 b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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% f% Z. S. `; D8 D7 V5 S! a' S零件追蹤8 m4 i7 I' ]& b+ n% i' n
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
4 h9 P6 x2 o$ b39.99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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