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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 / y' M, @1 a* y) {
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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。# p9 G3 n& V) C& h( B
控制转速的IC, SONY CX-032各脚电压值如图
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( j, k7 B) V! J( t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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% m  H! s5 o1 b3 y; ]" c有人走過相同的路了8 A: v* i" y: L  f* v8 m
摘自   Obsolete Media - Forum4 @, n! w& s" z

; d% ^/ r" z" V( C/ s7 Mhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 0 f4 n: a2 ^& s7 A8 H1 M' O
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-5585 |0 `& j) e" u7 R# o& D% t
Posted on: June 16 2008 @ 01:43 PM ' f! D8 W9 h$ V/ w$ z9 Y% N
By: RODALCO
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8 B( n2 ?& c2 ]+ o) w4 _4 {% c* PContent: ; b/ S: e* N, _! Q; c# K" K

& M/ b' `6 w* D4 W6 ?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.
3 e% E" e, n, vA 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.
2 w* k$ ]% k* x2 U* K+ N* bhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)1 p; f! K6 N: O& `+ D  O

- I+ B* r3 T, s% dThe German Bandmaschinen Forum thread.% e2 `5 w7 O5 A; {4 D
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)* Q% [: G% E% v9 M
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Gru�, Raymond
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5 \& E2 k% \: V2 U. }0 NChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
1 T: W. e* P8 @* t" m) kBy: RODALCO ) ]9 e5 t. e1 {: j! c6 O! W% P
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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?; ]0 w: E; q* e( s

0 {9 N5 d$ K6 m- @* H; T( F2 zI 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.
  ~) X; c7 Y& O# yThis will help all Sony R2R users in the near future as well as our machines age over time.
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2 Y) U1 z  G$ BKind regards, Raymond1 u8 D9 h# ]5 c$ p1 M

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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
: N! H. S  g) e3 Xhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100  y% o) U4 h8 |+ G8 g: m; O% \2 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
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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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