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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 ; E3 ~$ G) q! B% 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。8 e6 L8 Z7 a8 [) I7 v! B, c
控制转速的IC, SONY CX-032各脚电压值如图* s4 r0 ?4 Z9 ?  _" u
22-1.jpg $ k- Q. R8 T# j, a! W/ l

3 q/ @, a* Z5 Q+ u9 |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 9 n% b1 R% Z0 k' ~% k* J: G& I
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有人走過相同的路了
0 e" D) D9 ?7 }& m/ i摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
  C( y" v% K" }/ d/ K: B6 _0 m  _5 _http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
2 B% \0 h# D' E6 I: @; FPosted on: June 16 2008 @ 01:43 PM
1 ~1 |7 s, o/ [- @, t. s; ?5 ~5 _By: RODALCO
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: l7 ~. x4 a3 g' `4 f( CHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.- M# h) V; w. k
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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.! I; m. r5 K! h# i+ p: d
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.8 z3 h$ ~- ], s4 o/ v6 x/ x
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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' N2 `3 X0 H5 u# j  W9 _http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)9 g- F9 w- |: F% H7 ?
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Gru�, Raymond. U( F6 t# K, e: Z& R& G: x/ V: e
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
8 M( ^) |! |& U7 R- MBy: RODALCO % X& {3 I" F7 b1 A& U. i0 |1 p
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Content:
) f+ ^5 q8 `: c5 w4 E9 l) Z; @<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.
$ t7 p/ w# i/ x/ I7 i$ A7 v- vThis will help all Sony R2R users in the near future as well as our machines age over time.7 k# n5 @' _+ ?5 m) t

7 \6 J) z+ h8 x- a8 c  JKind regards, Raymond2 M+ U2 G$ v, ?

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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) _+ O- Q' c; v: z

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- h* S0 L% z0 I3 \* F+ N9 F2 Z  x零件追蹤
. p9 d0 \7 G; `8 X; E! R4 `$ Ghttp://www.globalsemi.com/productdetails.aspx?itemno=8750321007 \  D# b2 n0 h. z
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) K0 [' _8 o7 }# `3 D+ w
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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