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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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$ ]/ u8 D# H' o* u8 V; w5 }3 i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。  |1 ]- \5 l1 s& T: k( c& Q
控制转速的IC, SONY CX-032各脚电压值如图
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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 6 c4 Z# c, ~. B% [/ m, r
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有人走過相同的路了
9 D9 E9 x  K$ l- T) v摘自   Obsolete Media - Forum4 F3 e' v7 ^, l7 U
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
  Z$ @( m3 w9 f# t+ Z% w$ bhttp://obsoletemedia.com/geeklog/forum/print.php?id=20254 g& U' g/ G0 v2 ~

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Chip CX-032B for Sony TC-558* F" D8 {7 T$ \0 F
Posted on: June 16 2008 @ 01:43 PM 5 o) Y* F9 ~& Q
By: RODALCO % G# H- _6 u, V

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' g4 D1 ^% j# m9 RHi, 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.
; ^( G4 L8 J& dA 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./ L, l0 T/ O2 {! H& |3 K# 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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) Y" c3 _: _# ?, H$ x3 [http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)+ ^9 Y- F; L$ b+ g( M# S: z7 `

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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / X5 H3 k2 l8 ]% X/ I
By: RODALCO
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Content:
: Y, @" A7 h1 B& @8 j<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?# ^3 ]5 S+ {2 @

1 S7 x" k. S! B+ DI 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 H7 O3 ^# ], U5 @' M- o  \This will help all Sony R2R users in the near future as well as our machines age over time.9 ?- `& J1 Q9 i3 V! d$ F

/ f+ q0 Y- r! Y, ?! @! nKind regards, Raymond/ j; D0 T8 `/ P: x# v9 i5 ~/ d
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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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( `: v" H# v" q8 ?5 \. o零件追蹤# W' ^- p8 P( e9 b. h1 Z/ ?/ s& g
http://www.globalsemi.com/productdetails.aspx?itemno=8750321007 D2 j/ T) @" t' O: M
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; j4 I# K8 ?. {1 X+ n
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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