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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。
9 d2 l6 M, ]7 I5 \7 D2 n6 F控制转速的IC, SONY CX-032各脚电压值如图
; {% h; @; O" z! Y) ~% J 22-1.jpg   U! v" }- ^) b; {5 F$ n; Q7 f
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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 9 H: k$ l* w1 Y) @

5 ?( g9 L/ |/ D有人走過相同的路了3 {3 r7 v' l$ L+ L8 D6 W
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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1 d$ a8 `" {0 w, KChip CX-032B for Sony TC-558
, k' X- b% R. o9 ^Posted on: June 16 2008 @ 01:43 PM
& i" g  R) x  B/ s/ v+ _By: RODALCO
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Content: 9 H, z1 W$ [: Z
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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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# z  g) q+ Z3 l% |+ q+ W4 g( HLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.: [8 s) m3 {4 D# l9 F9 U, Y
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./ A- h2 ~% L* r
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)8 U0 `& r. `+ T7 @
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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)1 q4 K/ K% V" q5 D

7 q* b, C/ [0 XGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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4 j4 U2 E* e7 f  \7 q9 ~5 t<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.6 c" Y2 [7 w1 b4 |4 c- ^( Q" M- y
This will help all Sony R2R users in the near future as well as our machines age over time.
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! I$ r2 U8 h& bKind regards, Raymond5 N3 i$ w1 {6 I  n# p' y8 I! J7 J

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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
2 |* w  I# G/ l3 P3 j& dhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321005 i1 V( k' a" R7 `
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4 m. k7 q  @: `
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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