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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 0 h7 O0 n1 ~- Z' M% l* z) T/ r/ `0 C
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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。! a8 j. c* Q3 R* M( k: `7 ?
控制转速的IC, SONY CX-032各脚电压值如图  {9 @! A' V  _! n% O
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 0 L4 e" N/ `- |6 M- Q! J" I

( \5 v2 k0 T2 |2 M( n/ Y" T4 g有人走過相同的路了7 h' r! @0 u  N( l# p
摘自   Obsolete Media - Forum
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% A* U- w9 g/ E: y$ e+ Rhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 X7 u) q; g6 B3 p
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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9 P! g! I3 S2 M: p+ _Chip CX-032B for Sony TC-558
3 f9 |6 f% V, K4 d& `Posted on: June 16 2008 @ 01:43 PM ; b0 m# a/ N7 y+ N4 h$ |: T: @
By: RODALCO
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% X/ d8 r* y4 @4 XHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.: J" I* b8 T, E" d: {/ N  S6 G

' t( y0 @1 `# I3 lLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
, u; e/ L! `- n% q: W% y/ @A 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.. b; q4 q* i- ?: A; o
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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& J2 n2 j' E7 J, h5 r; |3 P0 zhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond: Y; ]8 P- L* K) K9 Q- f
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
' W1 [. ]6 |5 h5 f! V* ^0 Y0 eBy: RODALCO
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Content:
8 V& v7 V7 l3 q/ t' g<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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, E/ I/ b( O+ P: y9 P; CI 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.
: c% F7 U: \3 R! CThis will help all Sony R2R users in the near future as well as our machines age over time." W& S- o+ p; ~3 u+ M+ V! l

2 w0 N$ [* g8 f7 O; cKind regards, Raymond
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! F  y1 I. W7 H6 G, R* s$ O有沒有用零件做出等效的主軸控制還要進一步追蹤/ z& f  D3 [! O1 u

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零件追蹤+ o3 P8 V, I% q3 w# H# G
http://www.globalsemi.com/productdetails.aspx?itemno=8750321007 f) W! M/ e+ l! _2 e+ V
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2 K$ |& P+ A/ O: N* `; ~5 e0 S8 H" U
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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