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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。
" A' b3 I9 j$ d: e8 D控制转速的IC, SONY CX-032各脚电压值如图
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# Z0 }! W& w4 y5 o是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!8 \2 D( m, m/ K% l8 {' ]3 r
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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9 O3 h  G; ^5 q# e有人走過相同的路了
- T+ T3 u- G2 X8 s/ f* G) a摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558
; |+ I8 b% j0 `" l; dPosted on: June 16 2008 @ 01:43 PM $ s# g0 X1 z5 S8 O  n
By: RODALCO % X7 r# I$ V3 J2 P, d$ X

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  _# J# ?+ z8 AHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.' ?6 b# S) c$ x+ J5 i
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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.: z- H7 j' s7 L* g7 _8 D+ N' D
A rare Sony turntable TTS 400 has the same chip used as well.; k( [0 \7 _- M5 g. @  d
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The supllier on this link has the IC listed.
+ n7 A) b/ |! j0 R; @http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)- x) Q! ]# `7 D& I

, h0 ~! N/ ?& o5 O' dThe German Bandmaschinen Forum thread.$ _; [" u* C( E, Y

+ i5 g9 b( ~# o% I1 Z# p3 X9 mhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)* P% I) Z- h) q1 Y
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Gru�, Raymond8 K9 r/ p! I5 x* e7 j
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM + i1 ^& l& b& Z1 C
By: RODALCO
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8 p, C' L3 R+ ~7 a2 I" Q$ n<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.
- f: k# |0 p/ O- {* k( U- SThis 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; F7 O  n/ G1 `

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& X( Z: J( A7 K3 a" i2 u有沒有用零件做出等效的主軸控制還要進一步追蹤+ V% X/ Y# A$ w  R6 P
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零件追蹤
# f2 f6 T: c( ^http://www.globalsemi.com/productdetails.aspx?itemno=875032100- P# ?' x& f5 l0 H
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$ }6 D& }8 y9 _$ j) i8 _
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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