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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 * Q, y& [, @* |6 ~1 [1 }7 D

4 Q4 `% N, n$ b9 ]* o. u5 s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。: ?0 b5 u  _1 {! }9 T8 p- Y
控制转速的IC, SONY CX-032各脚电压值如图; `  l: C7 Y' i* s: i
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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 2 _' s3 g* I9 i9 P1 S- A, h  N
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有人走過相同的路了
& ]5 b3 g3 N) q9 W7 x; X: h% Z摘自   Obsolete Media - Forum, M, n' r( a" U' T$ h

# Y3 G, m( D" e! r, `$ mhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
( D  M' t/ [4 [3 xhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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# d$ `8 u' h& JChip CX-032B for Sony TC-558+ l: M. V& _; l
Posted on: June 16 2008 @ 01:43 PM
. g$ o8 Y6 J. [8 B* t0 LBy: RODALCO
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  y5 F/ U' V, ?Content: 2 V6 T8 X* l! N. U& q
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.+ q: @8 q! T' `8 D$ A1 Z% b
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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.
% p5 ?5 y# O1 [+ D3 SA rare Sony turntable TTS 400 has the same chip used as well.
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9 e0 c  Q# J9 Y- ?0 J; P' N8 fThe supllier on this link has the IC listed.
3 ]. a6 ]. s0 q- yhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.1 v9 N- I4 k" \% N- I
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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: p+ _/ j# Y. Q, [( t* z
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # L! |; E8 O3 Z; I) X
By: RODALCO
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, x1 ?6 O1 r  H; r. h3 i/ N* ?, I' U; NContent:
  g. R' ?7 z! c/ O4 X9 Y  p6 }<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?; [+ ]; m9 D/ b- v! o7 i- w1 o

  ^1 L& ~0 \5 _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.: N6 E# C! S# s6 `( M; i; |
This will help all Sony R2R users in the near future as well as our machines age over time.+ \; x6 f: L4 Y( v

! w7 D+ H+ W) P0 L, P! dKind regards, Raymond' P" p0 Y4 L6 p2 L( k! e
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7 @; J# K6 @: M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! }9 F& D: d9 @5 Z8 l# Z
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 K6 k& z! w+ M# ]7 W" ?/ }! v39.99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
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 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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