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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 " B' n1 o- l/ ?: a% u, n3 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。; C1 X, r. T9 ]; P$ V1 R
控制转速的IC, SONY CX-032各脚电压值如图& L: {2 r! F% O( n* x/ U0 y# R
22-1.jpg
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3 n5 Y# Z4 a, l1 ^. {+ @8 @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 " c' h7 p: i* w/ _8 n
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有人走過相同的路了9 j0 \( N( w- T: m$ A* v5 T
摘自   Obsolete Media - Forum
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, I, q2 v8 D/ w/ Y) Ehttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 1 a+ I" J# z2 m4 a+ ?% \6 Y% W
http://obsoletemedia.com/geeklog/forum/print.php?id=2025, ]2 J- X8 ]  Y. _  I# L8 R
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4 i# ^/ h6 J/ \  x* g5 NChip CX-032B for Sony TC-558$ H+ L8 }5 O2 S; B1 |- d" Y, j
Posted on: June 16 2008 @ 01:43 PM ( E: ~! Y% T) o' [/ U
By: RODALCO 6 b7 L" N: o4 f* P& `* [

& |  C8 i0 {5 ?  Y2 p2 a# UContent: $ N2 q- B; Z- r* p
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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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) \# w! h0 \0 p* \7 m; C  P' l# _) rLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip./ y$ v5 S/ x4 e1 D; @: V; U% J
A rare Sony turntable TTS 400 has the same chip used as well.( V" L3 x, L; {/ u+ L

, A( m3 o, r% `% A8 _& _The supllier on this link has the IC listed.
8 l7 Z) y" R0 y4 ?http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)6 t, H3 l; q( R- |  I) N

1 b6 r2 ]3 v$ }1 }3 fThe German Bandmaschinen Forum thread.4 W5 s" C$ s5 C

9 c9 e0 y, |$ P! f1 x2 Dhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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1 |9 `# R5 T7 ]/ cChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM " J3 f. G/ ^& g3 e. F
By: RODALCO
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7 `# j5 i( E* }& O; N( VContent: 8 G' C! ^# z$ r6 f- T1 ~
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?7 G2 n0 i. `, e3 \# j

6 C% B- \, S! ~2 U% \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.
# l. _; {; Y. D# z! JThis will help all Sony R2R users in the near future as well as our machines age over time.
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4 p) _) I+ i3 @: H, DKind regards, Raymond  U5 i  h$ j" B, ?# ?1 b
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& ?% [  f8 J7 z1 Y, {1 l# `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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5 N4 u4 U9 r* L零件追蹤+ T) |5 h' R2 x, u. z0 _7 ?6 i
http://www.globalsemi.com/productdetails.aspx?itemno=8750321002 y! o* A* q( @0 z# N6 }% l
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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