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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 ! n. H4 v, `' C. z

  ~% B* O$ J+ ~# R% m4 `' y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。5 x: ?( t$ l- _
控制转速的IC, SONY CX-032各脚电压值如图2 k- x8 m/ i/ c& n) e3 z
22-1.jpg 0 m' h  x" b# u& R7 U

) n5 a: f9 c( B) ?6 U8 ?* E# Z是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!+ @! N. g9 H  w# Q
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 , W& U8 T+ q. l# v; A4 _" g

: \5 p% J& u) y9 t+ ?+ M有人走過相同的路了% q  Y  H4 u. j. r
摘自   Obsolete Media - Forum7 C* J! g" L: d! E2 C0 M
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 $ ^* m4 f1 x6 N% o6 V4 X
http://obsoletemedia.com/geeklog/forum/print.php?id=2025; X8 K7 u9 v+ A. G; x' s' k- ~4 @
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' R7 O* o! \( s6 o* g. w2 h( t0 EChip CX-032B for Sony TC-558% F; l9 D- b7 B6 r2 T, ]. G( B
Posted on: June 16 2008 @ 01:43 PM : _$ Z$ e& s; {3 k5 N, C
By: RODALCO
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.3 `& W3 @6 L9 ?0 z( U$ t
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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.
) e# `2 d6 x, S8 `1 w8 c3 o; q) EA rare Sony turntable TTS 400 has the same chip used as well.. [! L  l. ~: C! k

: K+ B; }) ^) R, a) m' g8 x% j- T1 JThe supllier on this link has the IC listed.
6 v. D8 ?  \6 z$ c$ K& Vhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)% m" |3 ~7 j$ y/ G4 p- e/ I3 ?

+ o3 ^! [& ]0 b% GThe German Bandmaschinen Forum thread.8 ?  i( E- }0 @" i: m* f# A  g
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)3 ?8 k7 P) i+ y0 Z# f+ Z3 x8 H1 l
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Gru�, Raymond0 H+ x! \% a3 }- S5 x9 w
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ) n; k3 T# h" E8 V2 y5 |
By: RODALCO : E9 x+ s' h1 U! I! W

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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?% E/ F8 J' ^2 O$ B8 X* w1 @
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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.9 \1 ~4 K# ?7 h! \8 k. m
This will help all Sony R2R users in the near future as well as our machines age over time.
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0 N  c! [8 o2 p) t2 `Kind regards, Raymond  H6 V4 F* A4 O: u1 A; J: I; \+ h" e

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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
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零件追蹤5 e) y) n% C( @; o
http://www.globalsemi.com/productdetails.aspx?itemno=875032100$ G& ^( p+ V( l- n/ \+ K
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' z( y2 X4 y  F& q/ c
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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