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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 - i$ i7 Y2 g+ i

  U& j; L3 P6 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。
' k0 ^/ o% r1 G! S, v3 n/ X* ~控制转速的IC, SONY CX-032各脚电压值如图/ `. F+ i: Q$ L4 @4 a
22-1.jpg
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# L8 P+ @5 k+ j4 Q# H7 V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 0 m2 \- R1 |8 |3 D. Q; U) S
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有人走過相同的路了
# Y4 x- p8 w9 F; D3 |" A& H/ u摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
8 h1 v+ R% m- X( Nhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
& K- t! H) C, c2 g" s8 BPosted on: June 16 2008 @ 01:43 PM / J) i) o( q" O( Y5 b5 A
By: RODALCO
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Content: / ?% \# j" l. K. ~+ @

: U5 k5 q2 c4 AHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.4 {( K4 P# R( M6 K& P+ o

9 [( k4 P# w# A/ GLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.6 ]) x4 e. N, F$ J5 V' w
A rare Sony turntable TTS 400 has the same chip used as well.) ~& n1 x5 f! V: j
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The supllier on this link has the IC listed.
( ^! ~  z* o! j& Qhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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)7 \. e. L1 l( c% Y- X
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Gru�, Raymond
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) O3 [+ U& P( R( k1 oChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
" y' o4 y! a" C2 l  M, X: t$ GBy: RODALCO * B5 M% F: H5 V! S6 z# ~, c
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Content:
1 u* O+ `, f) n# t0 s0 W<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) l8 H1 H& x. y+ m! o' A1 ?6 s

$ [3 C$ f" T5 j$ z8 F, m7 RI 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.
7 K: {6 O0 H; V# a4 oThis will help all Sony R2R users in the near future as well as our machines age over time.0 }! M' B# x) j, x
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Kind regards, Raymond
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& w! c+ s! h2 S7 \# b, ~有沒有用零件做出等效的主軸控制還要進一步追蹤7 J( f. R# L( [# Q; [. y: V
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零件追蹤2 z, R" F. P, D
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
/ a3 R6 j: ]6 p39.99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, l4 N# ?3 ]: x% w
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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