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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 4 a8 g, m5 B2 O

1 p) ]; h% {# t' X3 c; R3 i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。
* J1 `5 J' E* H- M$ e1 ]控制转速的IC, SONY CX-032各脚电压值如图' @1 N( w/ E, _% i& x; d: z0 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!2 G1 H% x& M: 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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' h& `! N  X  r$ |: i' p  U* x6 U有人走過相同的路了
$ `& Q. r, D4 C2 e摘自   Obsolete Media - Forum
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# ^6 @& o4 K0 F4 hhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 F) Q$ B) Z2 ]; e, V
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
2 H6 q5 e/ W. J9 `8 m7 V3 b' E& `Posted on: June 16 2008 @ 01:43 PM ! {5 v: T0 X( U+ B9 h
By: RODALCO 8 |/ p0 _* p1 x

  m4 Z, z( M1 J1 d' K* n3 }Content: $ D2 T5 i" u2 o& w
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip., G: F' V2 O# {* ~4 E6 H
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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; U, e# X. r8 s/ h$ J; }
A rare Sony turntable TTS 400 has the same chip used as well.
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9 u9 w$ v0 m9 P9 l) iThe supllier on this link has the IC listed.
4 |0 C1 I1 m, C2 \7 v) f/ V+ thttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)8 u; {3 s2 z9 o1 J$ W( M. g7 J

4 T5 z9 f5 {* L: O/ zThe German Bandmaschinen Forum thread.( T, j$ ?5 f' D& R5 `' Z1 l/ U
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)( X) \# `* A9 E
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Gru�, Raymond
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8 f; t" M# |3 h9 [5 e2 Q, CChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 4 C2 s% J& W- \# ^$ x9 p- [
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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; h6 E) r0 C2 V" HI 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.. o4 J2 i& n$ d) J; O
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' J; }/ i/ A4 i; D$ T7 z1 G
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, N1 _2 l3 P+ ?! X# Y有沒有用零件做出等效的主軸控制還要進一步追蹤4 ?& L/ R7 j( q/ p
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1 i. I8 ^; \2 V+ Z2 R9 ?! [- r零件追蹤6 r. u; t# `5 P: v
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
% n8 T+ ~& Q) ~7 A9 n. O  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6 j# J1 Q6 K, g' l) j5 N
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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