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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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9 `$ }- u( ]  \' i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。
1 Q" o5 h/ c' V* m控制转速的IC, SONY CX-032各脚电压值如图) r' z* ~: W( _1 ^& v* v- m
22-1.jpg
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* t1 M3 W! b" e/ G, L3 p5 F: e/ i是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!
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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 ' W3 O5 w% g7 J) h
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有人走過相同的路了
: g4 M7 U3 S. }! r; S4 @摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
& V# @# }% r! }+ [( rhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025; I; T/ Z+ ?1 ^

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Chip CX-032B for Sony TC-5582 B0 w: r3 Y$ m/ _" @5 r
Posted on: June 16 2008 @ 01:43 PM 8 Q/ y* L2 ~' r6 b  f
By: RODALCO
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3 f2 @9 q% V* Y8 {4 C/ z1 q) AContent:
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, c- Q6 e5 V0 I6 J* AHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% N" Q0 i! D6 d  K2 g+ N0 D

, A& O# @* ^2 Y, dLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.( {" u" e6 [/ E7 P) p0 ^$ y6 J
A rare Sony turntable TTS 400 has the same chip used as well.
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+ E, m& l/ n) V) d$ {6 z0 q% f6 bThe supllier on this link has the IC listed.: w& x# V- o7 T, _
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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1 v% p8 q& q9 Z, ?* z" Ghttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond5 a7 `2 ^) k" J, r

, e: h9 e. q% R! a; PChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 8 n& T, d$ Q6 X% m' B
By: RODALCO / \( T. n! O) u! Y! X
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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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: m) {" \+ i0 t) n1 d1 [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.
( }% Y% L# p$ lThis will help all Sony R2R users in the near future as well as our machines age over time.8 ?% H* M9 m) @* Y) n, R
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Kind regards, Raymond/ |2 w6 l2 v: f% A. |

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9 F  Q" [! d% F- l% i( {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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, {  K2 g# P- g零件追蹤2 K1 r) }7 J& w" D3 @; t) H+ K
http://www.globalsemi.com/productdetails.aspx?itemno=875032100$ A* ]0 l, a3 k$ b" }
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  R1 d! a# Z1 l3 A% v
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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