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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 # h8 @6 n& |& [: h& o

4 Q" q7 r6 U  a8 d' l9 H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。
# B- s0 h  G' b" v控制转速的IC, SONY CX-032各脚电压值如图
! g2 J0 s- J* I& L7 r1 Y 22-1.jpg 4 k9 R; N  n! P9 q! a! C, ~

6 m3 k2 s6 w7 G是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!2 h- K1 b' k& F0 Z$ D
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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) H8 e" m+ L; H' P有人走過相同的路了# s6 M+ |) Q  s+ y3 J
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ! d# }9 M( G1 Q2 \
http://obsoletemedia.com/geeklog/forum/print.php?id=20252 v- q' a) Z5 n6 L1 ?) s
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( c7 `7 |! t, }6 u4 x$ Z: LChip CX-032B for Sony TC-558
6 K' ^0 R  W/ h* F$ }. x/ u& JPosted on: June 16 2008 @ 01:43 PM / }' G3 a4 ?1 k0 b" `) A1 R% z
By: RODALCO % C4 z7 _% r. l5 q2 c* m% m

- `( m/ @( M; R" ]* nContent:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% P) f% f* I! E3 X) u$ O" Z( V- @

3 w; V/ \" r! K& pLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.5 |2 |7 [  ?* _* @3 |4 J
A 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.  w) @2 R. Q6 O" O. C+ \3 O
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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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond2 s% p$ I$ E9 @, A% @; X  Y

, \% Z: \3 V8 e* t/ tChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM   ^+ `) _7 l& ?" i" R) c1 p- p
By: RODALCO
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Content:
7 m  c- }1 a" d+ z* ~1 K3 w<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?+ R* v- `7 v- C  @8 W" Z

$ w  ^9 n8 g6 |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.
) I; k8 H$ D4 |. I; mThis will help all Sony R2R users in the near future as well as our machines age over time.( \' L) H( z. a, _, }$ e

6 |$ c. B# A0 u( H; KKind regards, Raymond9 i; S/ F; v3 K
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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; j+ C3 H# b- V$ }; k. ^

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零件追蹤
! T, e$ ]6 ^6 Q6 d' O# hhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
& g4 u: R. C4 A39.99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8 p; ?" Y8 V0 h% P
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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