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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。
/ @* t! F* R) L控制转速的IC, SONY CX-032各脚电压值如图+ M' [4 q# x  k/ Q7 j, g4 E
22-1.jpg   p. o, S2 N+ i  B$ F

  e8 s. r% |0 Z" I2 j  E0 k9 n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 0 b7 F+ I- M  L
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有人走過相同的路了
' }( ^% }2 Y" F$ h( k* q摘自   Obsolete Media - Forum
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5 T& C; m. _" E: Zhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
1 F3 b% C# m* Bhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025; `* v0 X4 U: m, g/ j$ R5 i

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Chip CX-032B for Sony TC-558
& b( H9 L! ]- X2 H1 y9 x9 e* |Posted on: June 16 2008 @ 01:43 PM
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Content: + S( E+ i" _( L* ]$ z7 ]* h
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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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- e2 @+ a% s6 L0 V! B: A: x. L; uLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip./ }8 o# u& x6 R( K$ d. U
A rare Sony turntable TTS 400 has the same chip used as well.) ^8 D# U. _. a# l

9 y6 h: c5 V8 V2 V; |+ AThe supllier on this link has the IC listed.
% B) @- s+ h! n  H* N5 d; g& Ehttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)& p* [1 }9 Z/ ~9 E/ h& l5 T+ `
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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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" @+ h0 h( @% l% a9 xGru�, Raymond. b5 Z# F- n) g9 q+ p( U$ o; k
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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?
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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! r/ Q$ C9 j  H7 l3 S6 m( H" Q' |
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, Raymond8 g; H& k# _3 W5 O" A; j& h
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* g& L& q" W1 D% e% K' M有沒有用零件做出等效的主軸控制還要進一步追蹤' |" |) Q8 I% n8 [: l. f& D
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零件追蹤0 ^4 n7 c7 C2 w2 w  y
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
. _  q8 T! o; Q/ y+ C39.99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- M( G3 |, K. S- M
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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