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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。7 r; z! U4 Z" P& V$ ^2 s. O
控制转速的IC, SONY CX-032各脚电压值如图, P- F* r9 {# Y- S* A" J. O1 n
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* r* o: s1 `- u  V
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 # [8 W" R  [  U

, H) M4 Q, h: f8 S有人走過相同的路了! I6 i8 g0 V8 `+ y1 O! Y, l
摘自   Obsolete Media - Forum
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# o6 a3 A' N& P) k' a8 dhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
8 \: i+ d. E3 L8 Khttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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4 ^$ x6 _1 Q* l5 V$ t3 yChip CX-032B for Sony TC-5588 n0 f$ Z) [* h# ?0 Q- M$ m
Posted on: June 16 2008 @ 01:43 PM
% o8 ~9 \1 \5 p$ p% E, R; W4 [By: RODALCO
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Content:
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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.: B* {7 T: V0 i  O1 ~
A rare Sony turntable TTS 400 has the same chip used as well.9 K- F& O* l* [: m8 V
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The supllier on this link has the IC listed.
! z" V6 Z4 W9 p7 vhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 d/ ]+ ]) w* u- ~- B' T
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The German Bandmaschinen Forum thread.
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- p3 t. L1 c! Y( r" O4 ^1 Fhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)! Q3 y, {- h7 \0 @6 F
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / r$ ?4 w- k) u
By: RODALCO ' K, W- Z6 Z/ L2 b7 P

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) U, s) P( X- V- [# c, f<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?4 \# _( d* K; x; G8 p

9 l' l  s, R7 Z! y6 kI 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.0 }- a. o1 d5 E' g4 e8 m
This will help all Sony R2R users in the near future as well as our machines age over time.. q; L, x8 V8 V. Y4 p
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Kind regards, Raymond% H' @4 e) R6 a4 r6 l6 U3 q% [

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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
& ?6 l! z! k% V3 |7 g5 s! c! r: Hhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
6 l) C1 D. Z7 @, ^8 D2 T5 @$ \/ J39.99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& n9 @- I* x8 H) H. t
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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