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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。, V1 y: z) z+ e# b+ o7 Z
控制转速的IC, SONY CX-032各脚电压值如图
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$ k; ^7 X& o9 D( N- u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 . q' n) \6 O& I, o; Q+ {

2 U  T- k1 x6 ?* a有人走過相同的路了
* D" w8 U' d+ u7 _  R! }摘自   Obsolete Media - Forum4 _, I; Q- o  ~

+ ]% i/ u9 l/ N& p- u$ {http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
( b7 @4 ?3 A# H, z% ]4 ]. j3 `http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558* R9 _$ u6 |3 s3 F- w( u# n# t
Posted on: June 16 2008 @ 01:43 PM ( u# o% g& m  B  ]: c
By: RODALCO 3 ~4 W6 i, E9 L& s

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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.( [  |( Y7 Q" g! W9 [

6 r* S/ a2 c! c9 ~  uLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.+ u- c3 A+ x& B
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.
- H0 q9 u$ C( V) T8 f  n7 S2 ahttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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0 M; W7 h, e3 o" y& @The German Bandmaschinen Forum thread.
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8 P" ^# Y  h7 v. A$ T: shttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)5 I9 R8 i: a) H, Y& l; u# }

3 R- F. P& G' mGru�, Raymond  m0 M* O. d4 t8 }6 N
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ' j8 h: w" ^& W  A# _
By: RODALCO : P+ ~, O  s" C; E5 J5 B
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Content:
0 A# R4 Q4 H; s, L, H! Y<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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5 `7 S: @3 u# R! |1 s& TI 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.! B* G  k8 l) h. n0 J
This will help all Sony R2R users in the near future as well as our machines age over time.% w! j3 ^5 x6 Q5 z9 j
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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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7 C& @! v  q# v) W  {2 {# X零件追蹤9 ^5 [- Q0 X) O: t% m& l* [
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
4 E4 Y5 G' G" m- T4 z6 h39.99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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