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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 5 f! Q5 [2 M, F8 ]" ~* |
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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 x- _$ E2 z& _- z6 H控制转速的IC, SONY CX-032各脚电压值如图( c0 O; T; X/ n$ W
22-1.jpg
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' U9 b) u/ o; L! B! U1 @+ [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 ! w: m; X/ B* I/ N2 ]/ P

7 m2 K) `, U" J% Y( q* c有人走過相同的路了
$ h) C  U* K2 s/ J8 Z8 p% F* }& @摘自   Obsolete Media - Forum/ w! T5 Y: h0 n+ ^; K+ m

) I# ]9 g% j( mhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
0 E8 ?' `6 O0 ]& c& n4 {! Ahttp://obsoletemedia.com/geeklog/forum/print.php?id=20254 s+ ~) P8 j: S6 D) J- {
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6 H6 R- }9 t! j/ Y2 A1 U& MChip CX-032B for Sony TC-558! ^9 h: z* k5 o+ b& c0 f) @
Posted on: June 16 2008 @ 01:43 PM / W; u: n+ u9 S, h7 h
By: RODALCO
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* ~0 \1 P( X" L% B; j7 JHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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# J$ {, f. H4 p2 R+ PLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
( }  `" F$ j2 c4 Y0 \% [A rare Sony turntable TTS 400 has the same chip used as well.
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The supllier on this link has the IC listed.- R6 K$ u! ^5 ]1 P" j! _9 _( c5 n
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)- a  T5 B, R% m+ P& y( B
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The German Bandmaschinen Forum thread.( @9 p. ~: R' A. P1 N7 i

; T4 y3 h  K3 ~; Shttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond0 w! w( Z1 G) @7 M* T
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 6 J2 Q9 p$ V! z# M; R' U8 t5 Y
By: RODALCO 9 A+ f" m2 I; A: p
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Content:
/ ]  S7 `3 Y4 I! f0 Z- a0 y<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?/ q1 `0 w+ A6 d& V; L
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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.
- s$ Z1 \$ T3 @! j3 bThis will help all Sony R2R users in the near future as well as our machines age over time.6 Q+ |1 ~0 i1 |/ \, Q
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Kind regards, Raymond
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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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( N8 ?6 H7 g4 e2 G6 S零件追蹤4 Y, y* a& i$ e# z
http://www.globalsemi.com/productdetails.aspx?itemno=8750321001 L0 N; _1 g4 E" D1 w/ @1 t+ c3 X
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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