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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。
' N4 {( }5 g( R; O& Z控制转速的IC, SONY CX-032各脚电压值如图+ f/ V5 e6 d/ H/ Z
22-1.jpg
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( k. g" X6 s1 R" Y是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!
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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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$ v) e9 B8 `' Y1 A5 N! Q有人走過相同的路了" w) x! r4 Z' K% L+ @
摘自   Obsolete Media - Forum4 F! V: I' P. h2 n& ]* e

6 P4 J% g" f8 W) ~http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 * P3 p" T% O% D' B1 G( j
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558$ o- ]4 }* J7 k
Posted on: June 16 2008 @ 01:43 PM 9 Z  }3 {* ^' t1 w8 L' u
By: RODALCO
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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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6 k0 B& i* N0 F9 X  KLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.# v; i& H8 _% d. `
A rare Sony turntable TTS 400 has the same chip used as well.2 l' L! f, Y! g3 i+ e
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The supllier on this link has the IC listed.( X9 ^4 ]- ~/ n
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)" s1 U& o7 }& n  E. b
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The German Bandmaschinen Forum thread.$ [5 \2 k, g! G# f4 K8 m; ^# a
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)) g0 B: E5 d( n0 ?, [7 e% Y7 {0 d

2 S. i5 Z" Q7 a, x7 ?. `Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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) o* C1 q6 {( X7 {( \6 p, C<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.
( h* ?' P7 T& P; m* F0 L- r( oThis will help all Sony R2R users in the near future as well as our machines age over time.1 W5 k) V  |, i7 Q/ g4 p0 V
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Kind regards, Raymond
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9 t1 I- h/ a8 S有沒有用零件做出等效的主軸控制還要進一步追蹤
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零件追蹤* q2 i; v- g+ |% A8 t
http://www.globalsemi.com/productdetails.aspx?itemno=8750321004 J: q; c% {) \
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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