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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 , K$ H2 l( Y0 B- x: v
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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。
9 ^( x2 m2 `# b# m- D9 M$ ]控制转速的IC, SONY CX-032各脚电压值如图
. Y- n" I2 |4 I& x: I. y 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 e1 n0 R& m' _" P6 Y0 W6 x
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 ! z3 q; E$ A% m3 G

) I3 Z9 d  A: b) o( j# |. v* O有人走過相同的路了
1 [% r- H1 ?/ }) D7 F摘自   Obsolete Media - Forum* t# s. a7 `( l; P& q
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
' v% ]/ X" t; n. W! l8 |http://obsoletemedia.com/geeklog/forum/print.php?id=20252 @- n$ h/ t* K$ k4 Y3 T: R# w

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+ {9 V  h7 k1 t6 B1 g+ X% e+ }4 ~Chip CX-032B for Sony TC-558; d& k7 n2 T1 Q; D" P8 a2 }
Posted on: June 16 2008 @ 01:43 PM
7 G& a8 t. Z* Z9 SBy: RODALCO
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Content:
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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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" U% c1 Q7 N- q* n: R) X0 ]) wLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.  [5 u* e" @' k! e1 n
A rare Sony turntable TTS 400 has the same chip used as well.
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1 s+ l( [) x; [7 S2 ~& Y6 K! g; R0 [The supllier on this link has the IC listed.9 t- L7 U) W. M0 X- W: z
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.( U* Y" f0 n, o9 _
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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# z# f" L8 {+ J6 s" FGru�, Raymond
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. H  Y" }8 Y2 [' ~3 L) f8 zChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 5 k' h% \& t; s
By: RODALCO ; F' j$ B# d2 B- ?8 U

" V4 M. b. \/ |2 P! y6 Q1 g8 R3 a7 gContent:
) e2 `! [/ S; m+ [( p, y<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?7 Z! R4 m% Q' N* D8 \0 f3 C

2 g" ~. P; _8 s% 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.! Q0 u# a" ^' G3 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: R# n% U: Z: F8 V& I8 @( S2 i! j
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. u. N5 p# I0 A2 ?有沒有用零件做出等效的主軸控制還要進一步追蹤& t5 U' f# f/ t) f2 I
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零件追蹤
* P( ^4 Z1 Q6 Q+ hhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321000 z8 Y, n4 Y/ G! w
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
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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