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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
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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。
4 u1 l% m4 q8 n& d% z( k控制转速的IC, SONY CX-032各脚电压值如图3 Q" \3 A7 u, j0 V5 |8 k: `
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!0 p  w4 Y  U$ A6 Z( ]
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 8 T8 {0 v2 d; [, T& u

! m! F6 y7 u0 d2 K4 j; [" l( X( A有人走過相同的路了! ^2 t& \6 [/ I6 O+ G1 \
摘自   Obsolete Media - Forum
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, b" G' s7 G" z; Q$ Yhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 . j/ ~: z9 F0 X) A. o
http://obsoletemedia.com/geeklog/forum/print.php?id=2025( C7 w/ x/ v/ U" u" i8 t

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Chip CX-032B for Sony TC-558
% Y- m6 D" n' X' E- d: r: h* oPosted on: June 16 2008 @ 01:43 PM # |9 v" c. J) m' b
By: RODALCO
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Content: $ d. z+ o- s9 f7 |; R5 f" L8 N

# d7 T; Y! S( c/ ^& ?% IHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip., i2 S" c  k4 s
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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.
0 W: z+ \& W1 v% d! xA 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.
* e" T2 ]8 [' G+ M" nhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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! u" `; r$ Q' X3 Z( A* ]' s+ nThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)# y! m% r# d. s9 j6 g7 g
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
6 j" Z9 Q3 W5 \: C( M( d" J6 Z+ [<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?0 a& h5 s1 |9 D$ D8 E7 m

/ N2 B# u6 A, s1 f8 SI 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.6 k6 q  D7 ^$ e8 y( G# I6 K+ `
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond" y! k$ z$ Y6 I

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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/ J9 v4 f9 u  {& H" w/ k
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4 x* U7 H2 Q- B- D零件追蹤$ T6 O/ a4 x5 R
http://www.globalsemi.com/productdetails.aspx?itemno=8750321005 l. t  H9 m& k: U4 \
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+ R' g0 P3 {% g' l9 ^/ ~$ A  T) S
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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