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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 ' |, r8 n  F4 d8 y

4 [1 V8 ]9 K  N# t2 `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。
. x$ {4 u5 Y" J8 ~" [控制转速的IC, SONY CX-032各脚电压值如图% E; i/ q$ R; A" Z9 L& V
22-1.jpg " J% I( r0 k4 l, I! B" {" M$ n

4 G* {5 k, n! S' J& v是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* D  i7 x7 I. S& W# B. s
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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有人走過相同的路了
# O" R7 ^/ x" A9 _2 Z! U摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 H' T2 G, e; Z+ v6 m; e
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
0 d+ S' O  g, c- _  xPosted on: June 16 2008 @ 01:43 PM ) O! d; o3 [/ \+ C& Y7 P
By: RODALCO ! |0 X( M3 l5 ?- Q
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Content: 2 Y* Y$ t9 V5 \4 V! o$ |; O5 `
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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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.7 ~! R; k! y+ P+ F
A rare Sony turntable TTS 400 has the same chip used as well.7 B4 j  C% G2 ^9 C" A9 T
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The supllier on this link has the IC listed.; i2 @9 Z0 A1 ^/ q2 ?; L# b: _
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)7 x7 L$ H# f$ p  c6 T- e
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The German Bandmaschinen Forum thread.
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$ {" p* A2 L* Hhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)2 E% x4 \9 z3 ?* g/ W8 E! ]

2 A" r) G. {5 c; H5 |, jGru�, Raymond3 w$ _# `. ]5 S1 g0 D( \& V" P* m

; V; S$ E) w* O# r, C1 D8 s+ }Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
6 @8 A! O$ G2 ^- u& f3 |By: RODALCO / X' Z: Q+ {, `& n- @, ^

6 G# M) l4 _6 v% T5 A: nContent:
7 \: _& X: F$ m+ Q0 B- t<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?/ g3 _4 f  ?% t

. C, o1 Y* F: b- D# \' bI 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# A$ X5 o+ ~This will help all Sony R2R users in the near future as well as our machines age over time.# m# T" t* m# S: d
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Kind regards, Raymond0 ^. |) a' A+ U- ~9 M0 s) R, d$ H+ g
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1 f- U6 Q3 K& L" ~; U* L有沒有用零件做出等效的主軸控制還要進一步追蹤1 w* G* u, v+ }' h* `/ R# z

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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
& g. _/ x  W" B# ]- r9 k39.99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! G" ~+ b% @; `" F! r
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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