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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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. W0 e' U, H( }) b9 z; d2 o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。
# z2 {0 Y( g0 ^4 ^, i( a* S控制转速的IC, SONY CX-032各脚电压值如图$ K: i* W6 [5 `
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!
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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 # l8 D* k" ?6 K6 c

. \: y5 H6 n! q4 r& o有人走過相同的路了0 a" {( c* {, ^5 ~! Z6 ^" s
摘自   Obsolete Media - Forum
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' K) Q% J1 U+ e/ |) i9 ahttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 1 }3 T4 o) Y, K( A) V1 |/ r) w1 C" n. \
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558% i9 `6 a9 i1 [1 ]* S; v
Posted on: June 16 2008 @ 01:43 PM 1 ]- d( ^9 e  m, h" [/ Q+ A- g
By: RODALCO
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7 u0 u& _& U& d8 x- Y6 aHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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6 C1 a- @$ g9 Q0 _Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.* _4 g/ X! R4 `/ E5 L% q# c+ o
A rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.
8 ]1 O( Z! k% o7 Fhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 y7 K$ t& n9 I, g6 G% k# L/ ]
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The German Bandmaschinen Forum thread./ n" |% H( a; L, V

/ T- }+ H/ }1 h: w$ h/ n& shttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)% \2 E% ]  }6 ^& O5 _% H9 W/ _
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
- w* F' f+ X& W) S. ?By: RODALCO
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Content: 5 ?$ i+ b9 h  ]1 G3 f+ ~# `; S
<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.
) f& O/ ?8 @, ~4 k" D* OThis will help all Sony R2R users in the near future as well as our machines age over time., x6 X# }# Z1 x$ a
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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
4 k" m% C) I, G2 r1 I* ?http://www.globalsemi.com/productdetails.aspx?itemno=875032100
: v$ `4 w& b$ B% z8 N4 Y1 G39.99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. s, s3 H& v+ T3 S2 u) \% Q
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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