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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 4 V" k$ i) @  `/ Z0 c+ J

! f/ o" U. Z9 f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。
6 E6 A9 M$ k* F0 s) f: K控制转速的IC, SONY CX-032各脚电压值如图9 K; f( j$ P/ O( D$ e+ F
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!
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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 / E8 T  {$ P% x" W. e

& K, b, r6 o2 ?1 p: c8 [  v; H' ]+ r有人走過相同的路了' ]: x$ i! g+ C. H% P8 D7 u
摘自   Obsolete Media - Forum
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' t3 j& D" n8 U) ^1 Zhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
& Y6 w: c  F+ v5 o3 ]http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
" \: w# l: L, x/ a* J9 N# {Posted on: June 16 2008 @ 01:43 PM $ w$ h" G3 ?3 g$ `; C
By: RODALCO   C/ ^, t6 \+ H+ C6 s2 q- _
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Content: ; P! I6 T+ ^- d$ P# L" ^
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.8 w4 `+ Y4 m. o$ v0 d- f
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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 P: R, z. y8 J3 `" P1 W" n
A rare Sony turntable TTS 400 has the same chip used as well.
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' D" V! o0 U! E. ~& V+ @The supllier on this link has the IC listed.+ t9 H- v# V1 P) e0 ?
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)6 b# F- z! g9 C5 q  }+ Z6 d: E9 _
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The German Bandmaschinen Forum thread.! t" F6 B& W4 n* Z4 O! R8 u
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)) l/ I- p$ @& O3 ]7 G

% E% R, M: Q" S: X. _: d6 ^Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?* g+ ^2 _9 Z  y" i9 h7 c

3 w& r7 q2 L" ]1 V& tI 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.
5 g+ }2 Z& m, ?. z* f, l' @- vThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond2 S$ e- {7 ]9 _5 B3 a
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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
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" Y+ D: G. m' u7 |9 i零件追蹤
: ]  w: Y/ z1 D, Thttp://www.globalsemi.com/productdetails.aspx?itemno=875032100( \8 w6 x; c" y, i- i: V! W* [6 j( A) U
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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