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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 5 r8 X5 e& I. J% u8 p
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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。, @& ~& q; Z  O0 q- |% \
控制转速的IC, SONY CX-032各脚电压值如图
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!  N  h6 G5 F% H: v' \: S1 v* l
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 / Z. k. N4 C7 X" _9 X
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有人走過相同的路了- X6 T# A5 B' y9 {' R
摘自   Obsolete Media - Forum
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- v  q8 G6 ^! {% u5 q1 _9 |7 _http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 % b+ I! ~7 h7 ]: N) u/ n
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-5589 F5 C( X! w; C1 k* f8 I/ b8 P
Posted on: June 16 2008 @ 01:43 PM 6 l4 |6 W( p& z( P6 ^0 T
By: RODALCO - D: d4 X$ k$ o3 S7 S

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6 s$ [+ k: Q6 Z( x' ^8 ^7 x9 VHi, 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.
* \% _, C7 g0 O4 @" u8 MA rare Sony turntable TTS 400 has the same chip used as well.% w+ [% r% R0 g4 a* r! A

2 K: Q: j9 D' y5 |7 FThe supllier on this link has the IC listed.
! J  o1 P3 S3 a) q4 O1 \http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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; M$ f4 F$ M7 s% ]The German Bandmaschinen Forum thread.
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# N( b: o8 O1 Ehttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)7 c- p" N0 Z7 v1 s: f, x4 d

0 a$ ]* N' S  j0 m* S* H) oGru�, Raymond
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" }1 L$ ^. c( }, T; y. B4 PChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ) D0 C8 m. Q' d; d' B' h- L' E/ K
By: RODALCO
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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?0 k$ v: G2 y! Z# W+ e
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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.! a" M) B3 y& N: I5 o
This will help all Sony R2R users in the near future as well as our machines age over time.: y# B; N- c4 b; ^' q
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Kind regards, Raymond# A* A5 e/ Q1 V8 M

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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/ c7 G1 w. E

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8 g5 b# c# E! ~http://www.globalsemi.com/productdetails.aspx?itemno=8750321000 d5 K' _" V0 G: {! w/ c: t
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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