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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 & T" [% W/ @' X9 Y
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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 L& R3 G/ F( r/ Y' Y( w
控制转速的IC, SONY CX-032各脚电压值如图$ `% q  c2 B( h# k' ]3 i# c$ t  u
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 ( t& ?% E+ ]- A; D

. t! ~2 f7 ^$ A6 Y/ Z有人走過相同的路了9 |1 G3 n( d3 W3 a6 Z
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 h1 ^: x* o# M5 F5 m- ^! T
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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7 w# r$ T; W$ aChip CX-032B for Sony TC-558
) r" N( I. y7 g, D1 GPosted on: June 16 2008 @ 01:43 PM
0 b; L2 J& y* B2 v$ t2 H: t2 VBy: RODALCO # k7 O) r6 m! y) A

7 O7 C% i( [- k0 T; A) c# t* CContent:
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: T" C. m, l+ b' |' \7 @. tHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.- J! b" r! ~8 O' v# \

) i( Q) P# q* Y, _$ c+ c7 ]$ {/ z1 m) J1 ^Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
2 z5 I+ O% M; h! d8 {* C' N* Q' QA rare Sony turntable TTS 400 has the same chip used as well.( c" C8 ~- J- j: \0 ^% O3 r
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The supllier on this link has the IC listed.' u$ \0 u2 L; ^- e4 c
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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8 X. I  b6 D' w8 bhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)) L7 ^" g% N' n4 f$ V

4 Y2 I3 x. d- a& M( H" qGru�, Raymond( b  {* [& J0 w# t

5 d9 B2 h4 A' \8 b3 W: U+ v. a! YChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ; B; x6 I( [5 l' ~% r$ o
By: RODALCO
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Content:
7 S- I0 f! i7 Z8 a2 P( O/ K; i<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?. b5 }+ l8 e; y

2 b  r; a# R- BI 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.5 _$ J5 l7 S% J, u. K% K
This will help all Sony R2R users in the near future as well as our machines age over time.8 F# d6 z  Z  `5 k: h4 l" z" }8 m
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Kind regards, Raymond/ ~- {8 S# Y8 Q9 `& u% K
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# l! I1 y2 V0 f+ ^7 \- B  H有沒有用零件做出等效的主軸控制還要進一步追蹤, G9 V- k& @" a$ _, V" Q+ x& y
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零件追蹤
% f# u/ t6 f  b: n% G1 w! ehttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 j. W1 O+ \4 p$ T9 s9 J2 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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