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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。
' y, U) ^2 Y8 f控制转速的IC, SONY CX-032各脚电压值如图
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!4 s0 Z0 B( m" F6 j
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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. Q, f( J9 l' o有人走過相同的路了5 J% r$ {8 d5 A+ g
摘自   Obsolete Media - Forum) Q7 N/ v, G3 S

1 @! P7 U4 }7 M$ S  D) \- H" mhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
# R" W3 @9 o, lhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
: M  V# I' q" ?+ g, h# K" qPosted on: June 16 2008 @ 01:43 PM
3 B1 r6 r  u6 V4 ZBy: RODALCO 1 ?8 w; k* j/ D% ^! o; ~
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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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" h5 V/ B# y4 h, T7 m% _0 j( PLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.9 Z% H: Z( m/ x  c7 ~
A rare Sony turntable TTS 400 has the same chip used as well.( y2 e. n7 g1 V) B' e2 L

- X( _# Z& q2 f, W* q$ s( _The supllier on this link has the IC listed.- V, D3 h  k- n3 G
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)0 W# w( y# u7 p/ Z! L  Y- ~0 K- {
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The German Bandmaschinen Forum thread., Q3 O5 O4 t0 J
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)+ g% ~4 Z1 O8 \- g' S2 b8 ?5 _

, u6 R) w8 v3 B. KGru�, Raymond& E2 J, h4 q9 l. m

: f# i3 F, f1 L( ~. @: m% F0 x2 _# eChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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& _5 H6 E6 m7 X. K( V2 |<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?7 D/ F6 E/ j6 q' I  K

! L1 Y2 I) [; zI 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.! d9 r  U. N+ M" w- |' `
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
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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
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零件追蹤
/ Y3 X$ I/ ^( o' _; z: g6 Jhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
# e; s" `" P$ o5 h+ S39.99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9 `7 `' `- ~0 i
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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