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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。
" G6 |( ^0 W. J* a! l控制转速的IC, SONY CX-032各脚电压值如图# Z) s4 w- M9 l7 i2 ]( f( H& h
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!% P- J7 n) Q0 Y1 A5 U
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 7 Z) M5 `# P" T8 [& o& `7 I+ l

" O4 g& L, e$ P+ o: g2 D0 J有人走過相同的路了
6 Q7 x$ h& |8 `. Q5 A摘自   Obsolete Media - Forum
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$ W; Z' K& P4 Z$ N; shttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 3 ^" t. u. z' W9 |0 C6 |
http://obsoletemedia.com/geeklog/forum/print.php?id=2025& s; S) c/ c9 p- ^; x8 |# F
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Chip CX-032B for Sony TC-558
: @' o) s0 h3 u  o) vPosted on: June 16 2008 @ 01:43 PM
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/ m- v, n: c& O' ?5 XHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.* P, M9 q  d* z5 a; Y- \: |

8 q; b3 U* J  c; ?Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.5 x3 x/ ]" E$ E5 M7 _
A rare Sony turntable TTS 400 has the same chip used as well.8 E7 }/ N. Y: l; |2 Z" o% l9 d
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The supllier on this link has the IC listed.
1 N8 A5 ]0 N+ A9 T9 `+ mhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)5 Y+ C5 J" C, ?* a2 G

, F/ T% M, s- WThe German Bandmaschinen Forum thread.# x# D- p$ L% ]$ j! v& g# v

: |6 i# R8 e, h# ?" U3 b$ yhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 [' O  b; H$ }, \# J& N
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Gru�, Raymond. ?: R$ l5 T* D% J, N9 p
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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?
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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.8 k! E  Q5 c4 M" Z
This will help all Sony R2R users in the near future as well as our machines age over time.
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4 W) B) d; n" D( e6 QKind regards, Raymond; ?: ]/ R# B9 P- ^: Q  z
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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- z% N: g) R: q( u7 h! Q

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http://www.globalsemi.com/productdetails.aspx?itemno=875032100
, v& e( ]+ W4 ~' S& x# @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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