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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。
6 R$ Y$ T. P$ a' z# K' c控制转速的IC, SONY CX-032各脚电压值如图( t2 ^" e! o7 I
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!) f: Y9 [3 f7 l
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 : m) C# G0 \5 s5 l* k, e
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有人走過相同的路了
- p5 [) e$ t" P( m5 l摘自   Obsolete Media - Forum5 O0 o* U5 Z, I$ L3 J5 \9 _
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
* r9 Q( k  ~# q! Dhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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' T# }8 m4 |2 l* W; u  H- `Chip CX-032B for Sony TC-558
! P) ~8 V/ G! M6 }Posted on: June 16 2008 @ 01:43 PM ) g. v0 [, w2 E5 N
By: RODALCO ( A0 |$ k9 @0 U( |
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Content: 9 H0 S- \6 u$ i1 \

6 l9 x* k& ~% B4 S8 _0 @) R7 hHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.4 g; ~" i7 z$ Q  T+ m! I- F) @3 l
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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.
1 S3 q$ e# ^" g$ s- f6 t4 kA 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.6 E' I4 {. b+ Z+ z! c7 ]/ _" s
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料): K1 h1 P9 K* g4 B( O% z0 u

5 |9 J* ^$ T- |* Y& D' D" m0 aThe German Bandmaschinen Forum thread.1 d( _  P- n( X$ d" D) p6 c! x

' \6 W3 F4 k# ^8 F4 Nhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond& l$ h3 D+ o4 V! q& s) R: H2 r. l8 N
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM " f( `: P% B) r/ `
By: RODALCO
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Content: % a+ ~% Q9 R% \1 H* F0 V
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?/ Y! u7 k8 s: @- ]7 F6 a

' \) u2 \& D0 ?' r; I( x( `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.! ^+ m( C4 Q. P* ]; g, k
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, Raymond
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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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零件追蹤' L" N) T( D) u# l( k
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
* }. |4 _+ X2 C9 B. V* p39.99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- v' x3 r9 \0 H9 c9 V
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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