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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。$ q3 B8 c8 s" |, i. K, k
控制转速的IC, SONY CX-032各脚电压值如图. H* x  R9 \* V/ Y
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!) J! H- q6 y& p8 \! x7 }6 T9 P5 j
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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' f; Z; d  @! h有人走過相同的路了
8 o9 ^0 k- Q) I4 i摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ' S5 v5 x9 W% B
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558# r3 p* k: V7 Z8 J8 o5 G
Posted on: June 16 2008 @ 01:43 PM
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Content: 1 u3 c* T: l2 N0 n4 O/ u/ P7 |
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.; N' n& ~8 w( \- C1 C3 D. h/ g
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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.
6 I1 q9 K) \9 G. `, z6 NA 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.3 P' G- d" b% s. o
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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2 M6 j1 t" v( u6 g4 KThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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* H' c5 L0 i$ Q) U2 {# Q; ?Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
! j( d: k( O# G) R; J<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?* T: C7 r' N2 @) A4 w. [& d! d

7 ^7 H) N' S* l/ J4 U1 x6 [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.
6 @& i; I! m& w, x$ U+ }This will help all Sony R2R users in the near future as well as our machines age over time." h. ]# {6 f* I( X/ }

! Z& Q, o. {) D6 Q# ~) RKind regards, Raymond* e, X2 A. K  T/ }8 Y* L3 ]

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7 z2 t1 O+ {' B" u$ \4 C# d1 ?有沒有用零件做出等效的主軸控制還要進一步追蹤( L/ A0 u3 }6 d' A

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零件追蹤
4 U' a6 j/ i: t" Lhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100, V" J) H5 |3 O+ }
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. F1 |6 _. f, _
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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