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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 7 M& x. W! J' p0 d2 U
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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。2 _7 {% ^3 n* f  {
控制转速的IC, SONY CX-032各脚电压值如图  w2 ^" y( }7 ^
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!8 W, i' O7 ]  K/ U8 O5 I
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 l& L- b" M, A9 C* f* R+ k8 a
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有人走過相同的路了
) E8 Z5 k2 \) P: W, L' Y摘自   Obsolete Media - Forum! N$ i- E* a8 T  b
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 $ v3 J8 m; F" r, \
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558: {7 T" K$ _  a
Posted on: June 16 2008 @ 01:43 PM " J. Z. h: X  f. t$ J" Q3 y
By: RODALCO : _& \  j. {2 l' o3 d4 u' m

3 g7 B2 {# U- T  _+ R/ nContent: % X4 B: U8 Z9 I. s7 ^1 D1 y% W

( m2 U' A) }7 E! z/ BHi, 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.3 Z# A( W* x3 j. W0 T
A rare Sony turntable TTS 400 has the same chip used as well.
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# }0 z* w$ K$ E* C* |  T1 i9 f- ]The supllier on this link has the IC listed.
3 B3 y7 L- Q2 s. y3 V6 a2 @http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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: e* t% A. n8 c$ d) R& Z# d- A# |The German Bandmaschinen Forum thread.5 w8 q6 {# k7 v" q0 j

- k$ F- z) G- u- s0 Y' U" Bhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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. e' I  G3 V4 ?+ O1 K! _9 _5 y, q5 ZGru�, Raymond
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' [6 l6 M7 X; x: \0 \, ^3 \Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
. Q) G$ h! I; w  nBy: RODALCO
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Content:
6 [; E8 G4 N3 I<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?
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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.
% d9 ^% K# Y' e9 D& Y( ZThis will help all Sony R2R users in the near future as well as our machines age over time.( F/ G! i- x. g7 e
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Kind regards, Raymond
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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% ]: n9 `3 L3 W) w
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零件追蹤
, t. K& z1 Q- V" nhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100( Q# n2 \1 h* `. g9 E
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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