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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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4 }; N9 }- [% {0 E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。
. N. Y! N3 f; |2 ^/ \; A控制转速的IC, SONY CX-032各脚电压值如图
( A) h! ]( \) c+ n( `# E 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 6 D* y3 M2 n- @6 H( ^# G
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有人走過相同的路了% n, p/ r- e1 [1 I$ e- x
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
5 }, `1 x9 ?$ g; V- vhttp://obsoletemedia.com/geeklog/forum/print.php?id=20252 V1 Z! ^4 Z5 \( e8 `% z

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Chip CX-032B for Sony TC-558
) m% \5 l/ `) m7 D4 v6 kPosted on: June 16 2008 @ 01:43 PM
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. S1 C3 ~" p+ V0 t+ N, t4 p% TContent: 8 }) z# z) V& x4 \4 p7 J

: V2 v, r& [5 m& u# e0 P1 \# W/ @Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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: B8 J& P. X9 j! b- K6 s3 b# X; _Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.* @( {$ u! f7 }9 r
A rare Sony turntable TTS 400 has the same chip used as well.
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7 J9 W+ F) }# M, |' g3 H/ @The supllier on this link has the IC listed.7 l! V: l: C6 h9 s# X2 |' g
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% p8 v1 N5 ^9 a4 ^2 |% w$ ]
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The German Bandmaschinen Forum thread.( \, M3 ~4 h, H/ |) r7 m, D
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 E1 s8 j% o1 X, a( g6 R" N: Z

4 `( B! \7 {: z# uGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 2 y: O: T6 E# A% E! s$ s0 L
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?
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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.$ y# |( @( h6 L) |* i9 j) S7 V) H
This will help all Sony R2R users in the near future as well as our machines age over time.( F+ r6 g8 g6 ^% @' u4 o; n' O  O

+ q. J# g# F" C. @/ Y) Z1 X# qKind regards, Raymond* S. L9 ~) d' V) _) G2 p6 Z  g6 _. }& h

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& h  X: \* K; ]  v& L+ H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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- w; J7 f7 G2 f- j# a7 F零件追蹤
6 R) l* B3 q/ |2 R" }: ?http://www.globalsemi.com/productdetails.aspx?itemno=8750321007 O4 i- u% b; @( q+ P
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7 Q" c3 i* e; d; K9 p5 `( V5 F
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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