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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 # j* |* P+ j9 [* @4 _: J
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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。. X9 I5 a& Z& q( M. y* X4 ?. ]( `; w6 Q
控制转速的IC, SONY CX-032各脚电压值如图
# N8 j7 b5 k9 `  m  Z) H 22-1.jpg
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7 n8 m+ w: F: Z% `$ T( B是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!, C. }# d; m$ Y1 [3 ]
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
' q6 s; r/ c8 T; n摘自   Obsolete Media - Forum
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7 Y7 ~. D* Z& d/ dhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
# o9 G, \, z- m* b4 x+ Qhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025$ a* h0 x, I/ G2 p
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Chip CX-032B for Sony TC-558
/ f& U2 F/ y) y1 TPosted on: June 16 2008 @ 01:43 PM
4 q/ ~0 |, F' kBy: RODALCO # ]$ V  S. q1 i; ^

0 U, V9 F3 G! R0 [! M8 }Content: " o/ c2 I$ n+ h" e7 l' x" a
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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.; T1 l) x3 t+ l" Y
A rare Sony turntable TTS 400 has the same chip used as well.
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* J$ W8 J0 {+ U4 _1 L; h' ^The supllier on this link has the IC listed.0 v1 V* Z6 f  G& r2 ~" ~
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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& G+ t# E/ _8 t2 \The German Bandmaschinen Forum thread.
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. X: M5 }# u1 m" C  B. H: Phttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)  B1 A- T; N3 ~8 E3 `* l* P
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 4 j3 k( ~1 n! t% G( z( Q
By: RODALCO 6 L# o$ q" }5 P& r- \' X9 W

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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?. q) z; Q# ~" |8 o* }0 D

0 R$ @! f: F  aI 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.
4 i% e! O) K8 h4 g* F; Y" h5 F' n8 aThis 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) c& g  t7 U3 k$ w4 S0 p/ G0 q
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有沒有用零件做出等效的主軸控制還要進一步追蹤+ c) G* k+ E* K7 Q8 |5 P. e

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1 o5 l; F3 \: b% P; ^9 yhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 p0 l) S) v1 S- |3 D. u" u39.99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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