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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 ) R7 V/ w, t1 c6 r

0 j7 A3 t4 C0 ~. e1 [+ 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。
  t- B* F- X4 M/ u控制转速的IC, SONY CX-032各脚电压值如图  q& A' n" e' o6 e/ Q5 f
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!% y# j5 a& l1 }+ q) n
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 3 v0 p; P: E. R& d; N' f5 x

2 o9 c7 F+ n- f  Q1 s有人走過相同的路了
5 Q" c$ A$ j9 [' y& y& v% E6 Z摘自   Obsolete Media - Forum' V/ M3 Z* B8 w1 m% A% }
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
7 B/ I+ l# B' x4 M/ q& |" whttp://obsoletemedia.com/geeklog/forum/print.php?id=2025( O" R/ v  L% `* G
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0 {9 b7 a5 H5 J2 y! o" z4 Z- C- kChip CX-032B for Sony TC-558
! E* K* }4 }1 v; c8 Q2 M/ X/ VPosted on: June 16 2008 @ 01:43 PM
) Y  D: L3 u6 a. l/ k! qBy: RODALCO
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/ A. ^; B# m& tContent:
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Hi, 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.* C' S5 u. E' [7 \8 A
A rare Sony turntable TTS 400 has the same chip used as well.
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' y6 S2 T- J4 X' T: ]The supllier on this link has the IC listed.
( E4 a: w  q6 _0 u- ahttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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4 o' u0 `( a, \( u+ ?The German Bandmaschinen Forum thread.8 \  X) Q' x/ Y) |8 \' r* |! q
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 2 N- N# g  g& }5 j7 Q
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 Z2 d% `; J) C0 @* N
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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.
: K- I+ v. I+ B1 JThis will help all Sony R2R users in the near future as well as our machines age over time.1 a1 S6 e( M1 |+ D; G* Q4 @

+ C- K" ^/ e. ~% hKind regards, Raymond5 b; w& ]1 P$ z: b7 \7 e. v
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, ?7 a* X" J) [& M: V* h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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: a7 \! k$ [! ]. q' G+ F零件追蹤, U& y8 [7 X4 y4 P& a" |, L
http://www.globalsemi.com/productdetails.aspx?itemno=875032100. [9 T; [; `  n& u) e) 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
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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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