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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 : E6 Q0 ^3 `+ z- Z% @
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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。
% }/ F/ g# Y' j6 D+ ]- z控制转速的IC, SONY CX-032各脚电压值如图7 R8 @% {$ ^, a6 H9 d
22-1.jpg
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, q% {0 z. B! G  t3 z9 Z是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!3 x" R$ Y/ |6 c. 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 % l: g; i, X% _! I( h" K

# r3 K' t) R* Q% Q# z1 f1 d有人走過相同的路了
- o! ^8 ^* t+ y% O6 D8 {摘自   Obsolete Media - Forum+ Y$ Y1 a4 D" L+ G0 V8 j

' `1 ~/ H6 U7 }, |! bhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
! c! G6 [( {! ^# m( [/ C) Q% qhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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0 _6 f6 _# S+ [5 b: iChip CX-032B for Sony TC-558; M- s- X, ?4 P, C. s
Posted on: June 16 2008 @ 01:43 PM 7 L/ @* x4 z/ {0 C9 U/ z
By: RODALCO
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Content: ) Y  l& l6 \" T: k- a) G  d
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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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8 B6 v8 `  w( K" C/ J8 fLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.5 H3 f/ |$ ]) Q6 J) g1 N6 K
A rare Sony turntable TTS 400 has the same chip used as well.. N$ {+ ?" Z. c+ F2 \9 e  ?3 N

  x* e& l" g# O  z+ p( wThe supllier on this link has the IC listed.  i* A8 F+ h) I0 E/ b5 b( p
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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8 t; \( `) n& j5 ?' p$ RThe German Bandmaschinen Forum thread.$ R$ K- T9 R! J- b+ S
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效): H2 m+ m! l8 R: [2 {+ a0 ]

8 E0 [% C, o/ _) O$ X! LGru�, Raymond
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; s: \) S; d& A+ ^" \Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM , a$ Z; S6 d1 k# x, b
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?
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8 a! [3 f+ X5 U& ^0 k$ fI 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.
; H" p( J0 n: U6 F. u% O0 aThis will help all Sony R2R users in the near future as well as our machines age over time.9 _! G* k" D+ C9 K7 F% ]

- V2 c6 ]; ?, sKind regards, Raymond
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1 H* h- [& s5 u! N& `9 p9 Z有沒有用零件做出等效的主軸控制還要進一步追蹤$ L9 I" y$ r! Z

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$ O; @( O% t" B# f零件追蹤  S6 k/ x4 \, [" I, W
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
; X% b) D+ e3 M39.99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2 ?" {, R+ {3 d7 U3 n
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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