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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 ) n# S0 {, }' {0 v7 J8 p8 W1 ]

7 ?; v' b0 Y( I* 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。
: A9 _; _6 ^0 q3 g- ]6 Q控制转速的IC, SONY CX-032各脚电压值如图$ ?- ?% [$ j$ d- z% q. M
22-1.jpg
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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
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有人走過相同的路了
" H6 l* x" ^- X4 m摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 3 H3 |* A! M; V. R3 Z  B! T& L
http://obsoletemedia.com/geeklog/forum/print.php?id=2025- n/ e% H* O) g4 `( C6 t* A
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Chip CX-032B for Sony TC-558
3 c6 K1 f& ?7 Z& E( {Posted on: June 16 2008 @ 01:43 PM
6 V6 I8 M7 \. g3 d$ `8 B" lBy: RODALCO
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, `  [0 t+ O/ o: g3 S; zContent:
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. R8 f' k' {/ G$ y6 {+ N5 lHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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1 p+ ~2 C1 k1 ^5 g: N# L" }Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.% l/ x) ^* F$ J7 ?1 U
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.# Z! Q2 T  I' W
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)7 |0 ~  E7 c5 p; z& x

5 R- @6 W( M: J& L: Q' }The German Bandmaschinen Forum thread.# B4 w& y- Z1 G' q. \

! b# Y1 m# i. @1 a+ |4 rhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)) a: }: z5 h& ~6 G4 Z1 b/ r; l
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Gru�, Raymond2 \  r( m$ ]9 V- {. f8 Z
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM * Q: n7 x) m* i" j4 [3 W
By: RODALCO & H1 |- L7 ]" v/ L# ~& u

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- R% u& j# y; V, Z+ K6 G; ^<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?4 ~7 A+ A" [& y: {( ]% d

8 _: b+ [. O! @" g+ U9 G% MI 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./ P! Y3 B8 C; ~! I3 J# [
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, Raymond0 F& D& O! i% @: n+ I
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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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3 w$ k) U. ~5 u( F零件追蹤' f- ?9 V+ k/ p$ a# \: c) E/ I
http://www.globalsemi.com/productdetails.aspx?itemno=875032100& H+ I. P9 a$ v' `0 ]0 w, {8 P
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1 z  D. o9 x0 m' f$ G; N# l. l- `
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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