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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。  S( D: l. h& o4 C  D
控制转速的IC, SONY CX-032各脚电压值如图
/ @$ j/ ^  S. r+ w* I3 U 22-1.jpg
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% s6 d  h2 R' g* K& T0 U是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!& r" {$ C, C/ y' g" [/ x$ M. |
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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* I+ E( P8 O% b3 }1 \. d有人走過相同的路了% N0 l. z# u8 ^" _) ^
摘自   Obsolete Media - Forum
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! c9 W0 t9 j' [4 ^http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * Y7 ?, y) ?. I; X* G# g. W! y
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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2 D8 ^6 w! _$ o) ?* @7 AChip CX-032B for Sony TC-558
: Q+ K! d7 ~8 v$ B8 o/ q3 ePosted on: June 16 2008 @ 01:43 PM 1 F9 R$ S( ~* k, j! y
By: RODALCO
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.9 m$ q; Y2 Q7 u6 |7 O
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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.* m+ |5 o4 F3 d6 D2 b) ^* C
A rare Sony turntable TTS 400 has the same chip used as well.
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) ^+ |. S" U( V( {4 z, z) pThe supllier on this link has the IC listed.& \, ~' L6 q" ?  Y- F
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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5 A0 s! H$ k/ b8 Q  H. ?http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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& C0 @0 A  h/ m6 E; TGru�, Raymond" S3 m: N* W' _9 J% z  `; ~% _1 ]
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
% C8 y! A" i3 ~  nBy: RODALCO   ^5 U- `3 D7 E$ `, l- `4 B- d3 E- O
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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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& \' u* k  P/ p9 s* I( U8 dI 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.
* w0 V: D2 B& v/ x: T8 j1 hThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond
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% n$ K/ W% L* H( W: a3 d5 f有沒有用零件做出等效的主軸控制還要進一步追蹤* I2 |. j1 I/ A

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零件追蹤
' o0 z! q. n9 |/ X0 C) }0 W9 Fhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100: Q+ N4 }8 ~) {* s2 Q
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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