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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。. f  b, S4 a2 N. C
控制转速的IC, SONY CX-032各脚电压值如图
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/ d( X" d. [6 q( y0 ?7 k/ C是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!$ Q( y# ]9 T- j# d. d9 v
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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) w; P- H- X2 @+ M4 z/ X4 F9 C' Z有人走過相同的路了
7 k7 F2 ]4 q( v摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
& t% Z7 J( {* Yhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
( R$ k+ Y" O0 c) {Posted on: June 16 2008 @ 01:43 PM " _5 w: b/ a: k4 E0 \
By: RODALCO 2 {$ [6 u7 C$ B! ]
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Content:
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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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0 i  ~& F/ N5 C2 QLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip./ J/ D8 F6 K6 o+ C0 w+ H
A rare Sony turntable TTS 400 has the same chip used as well.  `4 s% {1 ^# a" u0 W/ v- x+ Q  c2 @
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The supllier on this link has the IC listed.# ~. h! z& w# E7 O
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)4 |/ O8 c( U% g* k% t

8 S, b8 @, T( N. I5 e2 y  y7 }The German Bandmaschinen Forum thread.5 p" U  k6 T: V4 x6 J  W+ a
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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2 j' J! T5 i/ g. ?2 D# i% mGru�, Raymond2 T' E- Y+ M8 `! Q( W3 h6 }6 t, P
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 0 P0 ^! ?* A: E& t
By: RODALCO % M. C2 z1 [6 q- s9 g
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<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?* o0 g% b+ g2 H6 O
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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.& E4 U- |+ i. P4 {
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- M+ p0 N0 P, R

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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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; j1 o% v/ Z5 ?零件追蹤
4 f8 S. Q* o& L8 ^7 o4 Dhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321000 E  H) U' B4 M' B9 q
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7 }8 E% y% u2 S) w, q6 {0 h: y
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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