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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。; i2 B1 K1 K+ }/ f8 K! p1 [. K
控制转速的IC, SONY CX-032各脚电压值如图; e& w$ p! u3 x* R3 }- ]2 c% e8 m
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!. {+ ^8 Z% f. D9 q
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 ' k' P% E- }6 E6 O( b! x; i! j
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有人走過相同的路了- z# i" i5 ]! J& F9 a
摘自   Obsolete Media - Forum+ W5 L0 J( _& j. P: n. @
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 6 _1 S7 J  g& W
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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+ [: q: o$ x1 S( W+ I4 AChip CX-032B for Sony TC-558
$ ?3 w% u$ A+ j# sPosted on: June 16 2008 @ 01:43 PM
; w' I' o. `& J* i8 LBy: RODALCO $ o" E5 F. O0 b$ d( t+ D  @

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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.) @6 P: w0 f7 U" l* W! L1 z4 }# N
A rare Sony turntable TTS 400 has the same chip used as well.. z0 I/ g# J8 d* {2 P! W2 K0 \  n

9 M* E: ]. @; ]3 K3 F9 {4 M  SThe supllier on this link has the IC listed.
$ N" d, |  z/ jhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)- J/ k- C1 \7 R; f* x1 ?% e

, t1 l/ p  [7 _* TThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond% E& ^# \) O/ ?
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM * Q% I. y8 W- c1 U( _# T
By: RODALCO ; j4 {) {- _8 Y: }- [0 p
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Content:
4 P+ D, e. V3 _) J# r<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.
8 e+ c: G2 S4 R, [This will help all Sony R2R users in the near future as well as our machines age over time.7 i7 [0 w/ z7 P
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Kind regards, Raymond0 S8 O: l7 N. i' R( ~/ l
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! O8 u" F9 x4 M- L3 }有沒有用零件做出等效的主軸控制還要進一步追蹤, q% ]  Y- s% E  s' g
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零件追蹤
4 ^' |# f1 ^& P. r5 Y0 o# L8 R) R6 ihttp://www.globalsemi.com/productdetails.aspx?itemno=8750321004 e+ k7 t7 D- `
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. B. g0 ^  q( k* u7 o" J0 m" S. B
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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