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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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! {5 R# M: ~4 X4 l: a  ]* P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。
$ C: b8 ?# f2 \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!. a2 P) N2 }! r. Q8 c* C  ?
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
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2 K, ^0 @5 h3 B7 y有人走過相同的路了
, t1 N% J# n2 O8 i( P( T" ^摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 . P* q5 t# N( u& \4 H6 m. M
http://obsoletemedia.com/geeklog/forum/print.php?id=2025: G4 V7 G0 c7 T6 ^5 F
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Chip CX-032B for Sony TC-558
% a. H6 `* s! ^; e5 l0 }' ~Posted on: June 16 2008 @ 01:43 PM 1 @  q5 v) a7 i7 d# R/ F
By: RODALCO 8 d% i' |& t$ b2 O- v: Z- [
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Content: : U+ S2 W5 m4 \& [* Y+ H

8 L: r( F: [. w! H7 ]5 xHi, 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.
/ O5 F$ t! R  B5 dA 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.
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The German Bandmaschinen Forum thread.; j5 ~! w" p1 u( O4 s. g1 u+ \' f
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)/ E: h7 m: T  K3 A7 M. |
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Gru�, Raymond
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$ x) A2 B, c) B& O% c9 B* IChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM * p( P' |9 x6 o9 t: s2 B/ c, i& H3 ~
By: RODALCO 6 m6 L% d0 i5 x4 q& n: p- o5 U. ~

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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?  m, e( W5 l, h& Y+ }' o6 S9 ]
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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.; l. _6 i5 L! I
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond6 v8 {0 |9 U6 d: S
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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5 }* R2 p9 A1 S
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零件追蹤( w* ^; p  @1 A' e6 s  w
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
( D+ R% Z" ?1 @1 J' ]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1 e  N: w$ T5 j
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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