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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 1 }/ ~  E" n/ C. Y7 d1 K
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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。( j1 s. _8 U3 r+ d; T
控制转速的IC, SONY CX-032各脚电压值如图" C% }4 o5 C+ q4 T+ X, D# v: Q
22-1.jpg
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!5 }9 {$ `$ W, Y0 K* `: P
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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有人走過相同的路了
  S/ D/ m, Y: c摘自   Obsolete Media - Forum
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7 h0 \! u* z4 c' z" |% T+ @) k. Nhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
; K& y9 g) Q& ]8 uhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025# G0 ]: H# s% q' G( @
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% b5 k; j" V0 q, ^7 WChip CX-032B for Sony TC-558; E, q; r0 b' H7 y3 `
Posted on: June 16 2008 @ 01:43 PM 4 ]5 T: K0 p* [( G2 w7 f- m
By: RODALCO ! e; B' N, @3 ~: b4 G; A/ A
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Content: 8 T0 e2 M( ^/ d7 s5 D! n

, a7 t. Q9 k3 [( YHi, 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.7 A+ c' S7 ^, `/ z
A rare Sony turntable TTS 400 has the same chip used as well.' V( r0 a0 u* ~

7 ^+ }$ }( k# ?' L6 N4 w* HThe supllier on this link has the IC listed.
) W; W& N8 b1 I/ n+ Thttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料). p( r8 w6 o  L9 P. C" F# y
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The German Bandmaschinen Forum thread.
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5 s2 d/ v% A3 E  R, M+ W1 `4 Xhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 c) \; H4 B. `2 g7 ]  R
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Gru�, Raymond
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2 j9 N1 _: n. ~( d+ j" {Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
- H6 a8 \$ P1 zBy: RODALCO 2 E' a' R  O- F3 X8 Y

2 }6 e( S# V( [; `1 A. l0 o- ^Content:
0 _, n* i) i+ A# d- o. F<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?  }% u( r3 W9 L- E! a5 Y
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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.
1 g6 W* g( W- F9 f2 LThis will help all Sony R2R users in the near future as well as our machines age over time.! f3 p* K9 }5 ?
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Kind regards, Raymond4 a& c: r! X  z; n
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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
7 V9 y  W5 ^& B% \2 E4 Zhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
. }1 @! i/ ]: G  y$ y, }' _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
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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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