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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 0 _$ ?  ^% \; N# M. _6 \+ L# F

0 }5 w) v' l8 W7 n3 Z& d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。
7 M  S2 O- s3 {, G控制转速的IC, SONY CX-032各脚电压值如图- z7 J2 g& b: y8 Z, R! ^9 ~: M
22-1.jpg
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1 ^* ?0 @, x3 F. B! Y# G& s+ ]是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!2 W& h! ^; q8 p3 B# v" E
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 % [' Y6 |) R; x; A6 {* e

( p- q9 z- R) B7 I有人走過相同的路了
0 u( u: X. S, U6 A" J5 f/ S摘自   Obsolete Media - Forum
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' U! [9 `7 t5 R$ Zhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
  f* h( w/ l) l7 Ohttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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! H+ J. [/ K( {/ z; m& Q6 _% ?Chip CX-032B for Sony TC-5589 M7 S. P+ R% o' t2 j# _0 D1 C
Posted on: June 16 2008 @ 01:43 PM + q3 Q- W8 v1 d+ B" k1 }
By: RODALCO 0 r: H% s& J0 k5 S

' @4 G0 S8 }* P6 D3 uContent:
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$ n2 {% q4 T; `" o. i% o- }Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.) L. M; _# Z- \. e5 n* W
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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.
- i. K# d5 e- a" s; BA rare Sony turntable TTS 400 has the same chip used as well.% Z! d, `2 P' L8 X+ Y5 t

3 L8 _. ]* q7 d& A+ V4 DThe supllier on this link has the IC listed.5 [6 h0 _9 D/ q8 d! f  [
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料); g! G# E$ e1 E0 c+ E5 o% b
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The German Bandmaschinen Forum thread.
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7 \9 \- t; J& q* yhttp://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
0 ]& k+ j1 w; @/ S. ?. `9 O2 SBy: RODALCO
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. }9 q! R' L6 p/ c; }& K* x7 `& lContent:
; v# B8 Z4 Y3 X- X2 N( F. J<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?2 _/ l& s% g, X, Q- d& b9 b
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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.  U6 h6 O% q1 u
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, Raymond) |3 _' G; [# _

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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4 r0 S& c9 N9 c' U1 ?
http://www.globalsemi.com/productdetails.aspx?itemno=8750321005 U( z) b# O5 w: N# z) e
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; F; ^6 J: u( o/ D' D
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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