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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 7 a: a/ ?, ]; [$ o/ _( q  P
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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。
2 d3 u$ G0 m& Z控制转速的IC, SONY CX-032各脚电压值如图* {* [5 f8 f2 g6 ]! q
22-1.jpg 2 ]# X/ D& _9 D( z9 p, c0 ]

/ F0 R0 O( ?& s, i. B4 N是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!5 `; A4 K% I1 L9 {. E7 f
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
. s2 V& t$ A" [. N5 y7 T; \摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 - s  E% J, a& Z" u) n5 I
http://obsoletemedia.com/geeklog/forum/print.php?id=20258 `; k5 F# U# P# v9 P4 q$ Q

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Chip CX-032B for Sony TC-558( i6 D- k& Q5 o
Posted on: June 16 2008 @ 01:43 PM
$ u1 s+ T5 M; n! A1 A, F. wBy: RODALCO
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5 U9 U, C7 d, {1 IHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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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.
& i+ s+ G- V8 Q. ?1 G( KA rare Sony turntable TTS 400 has the same chip used as well.; N! _# {- s! P( S# T1 C

- e7 E& k( d% ?% L7 D; U6 pThe supllier on this link has the IC listed.) E! R4 f+ e. t: B" e  k* M
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.! r% [7 `! h7 u9 O0 _0 w7 T

; X& k+ e5 ?+ i6 ^2 g- jhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)( l" u4 O/ G! A1 j$ v

+ v+ `/ K+ Y7 M0 B" LGru�, Raymond1 @8 C& V) A/ R9 H1 ^
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ' G6 J/ {% k* p. D5 f3 b
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?( @# s% a# ]3 I3 z
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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.! W" _- o8 j) }. E6 r& z
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, Raymond1 Q0 ~% @; M6 A) H) r5 Q: e

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. w1 a! w0 n2 y8 U1 l. h有沒有用零件做出等效的主軸控制還要進一步追蹤, X* R0 m! J& O& O1 ~! y
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; I5 X0 U5 L$ m+ P, a, }零件追蹤
5 u5 j" h( ~) n0 [http://www.globalsemi.com/productdetails.aspx?itemno=8750321009 `4 P4 [. d! X- F- }/ \
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/ ]+ D( V9 o1 k9 n/ q* ?
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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