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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。, R& U, |, L& @$ p, v) G+ m6 N
控制转速的IC, SONY CX-032各脚电压值如图
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! ~6 T- d8 L' x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
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0 d) x5 ]# b  f0 T6 U! U+ m有人走過相同的路了2 |' _! E7 y+ I
摘自   Obsolete Media - Forum
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- A% b- ?" P+ _http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 9 ?, s+ I- B0 o: B5 D! Z
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
6 |# A- Y. P, nPosted on: June 16 2008 @ 01:43 PM
0 q9 t4 l: V2 Z8 n# XBy: RODALCO
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Content: : S( e, L, f1 Q; `5 u6 w

9 N: b# t7 I# p" d, Y7 yHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.- O5 {% Q  n! `. @* ]

6 U8 Z6 }: r8 X8 j! aLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.8 {8 W# h+ Y; y3 ^' r$ c7 l
A rare Sony turntable TTS 400 has the same chip used as well.; x' _( U1 Z) a$ I

' U# |; z9 S0 O3 k9 a) |. mThe supllier on this link has the IC listed.
) q: A# T4 U/ F9 t% _http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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)
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% p9 O, b$ [8 g) i1 {. \9 g5 {Gru�, Raymond
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0 D! ^) W; d" [. M/ \Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
& J, V! e  v! \- d" UBy: RODALCO
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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?
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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.' j) a; P  b0 O7 J( d+ n' W
This will help all Sony R2R users in the near future as well as our machines age over time.# w5 T  z% w& R& [

, C8 d0 U" A0 ^. o. |0 oKind regards, Raymond* {0 S; k. L% l& E! A/ A

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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
( J! p( s: @4 L3 m" Y$ Y# Nhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
+ Y' N2 g4 I7 P& ?" u39.99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+ S5 j: f; T& S( o
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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