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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 4 c5 @% _, v+ D  D/ c/ i8 ]
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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。
/ s; Z  A2 \$ q, _, X) z! x/ y控制转速的IC, SONY CX-032各脚电压值如图
: M5 u' }$ w) K- ^' s5 l 22-1.jpg
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  p7 d4 o* o( N+ p2 Q5 a是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!) e. }% j$ Z' Y% U- u7 B
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 % j7 W% H4 E5 h5 Z

8 B5 c# r$ L; b( k% r有人走過相同的路了& V1 T8 x  x9 L" r
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 3 S5 ?5 ^8 }0 \! @$ g/ Y
http://obsoletemedia.com/geeklog/forum/print.php?id=2025$ A% |7 w  ^( P" E  D9 q' j% Y
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Chip CX-032B for Sony TC-558" e; c8 l2 d$ J8 E+ N9 Z
Posted on: June 16 2008 @ 01:43 PM - ]+ }# J8 J, o) [& y% c
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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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 W9 w4 c1 A# e7 O7 D+ s9 C& ^A rare Sony turntable TTS 400 has the same chip used as well., `; j3 [+ N+ z9 Q0 @: F3 V
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The supllier on this link has the IC listed.
- \2 j5 W- R, V' {http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)) p3 I5 v+ Z8 a* Z- l% |
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)4 R3 h( `( G9 C4 f+ C

, G5 e9 L4 H- {4 V. J8 w* ]Gru�, Raymond
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' V- J4 @5 {- K+ F3 IChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! j8 g8 B) z. r$ c/ xBy: RODALCO
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Content:
6 K* Y: D8 Z% N$ o9 Z+ }: R<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?8 l( d2 u/ {0 r

  A2 U& [3 q$ l2 t  UI 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.$ c/ K2 m% L6 I+ G" a  f
This will help all Sony R2R users in the near future as well as our machines age over time.+ H% F. O, a% U

- M/ L8 H& }& H$ ^7 B1 ZKind 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4 i  N* s9 i* t& a5 P: [
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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
+ d4 ^6 x; k+ R) m! n39.99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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