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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 6 e' d3 `! N4 }
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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。
# x- q& V" I1 z6 ~3 y- q控制转速的IC, SONY CX-032各脚电压值如图8 Y. J- f/ B% t5 S- |& i6 {
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!7 f  ]$ C/ P6 N( e
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 3 K; T  ~5 |* [7 v
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有人走過相同的路了. ?# k  g/ \& X" P9 O7 f
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ( k1 K/ h& a" o% u1 ~6 u' n
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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$ k. H  [" U* B) W; LChip CX-032B for Sony TC-558. d& K& i8 p3 M1 J  X$ O
Posted on: June 16 2008 @ 01:43 PM
0 \4 ?' A4 s9 J& g  k4 p  HBy: RODALCO
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Content:
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! B6 [; b% r: j8 w8 hHi, 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.( E" E$ F' \3 v+ H1 X5 A; g
A rare Sony turntable TTS 400 has the same chip used as well.  K% y2 b7 h; m  s' [. L7 W) M
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The supllier on this link has the IC listed.
$ R" ]0 m, u+ S5 c3 E) C. t4 Fhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)' z4 E" u$ H1 {; L

2 E4 c3 ~  x9 S% p' E2 NThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 X, g, @2 h0 t4 v; s
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Gru�, Raymond
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. P+ j6 ^( E' p. n, E. X% r: @2 |2 L7 MChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
/ L: b, e' [7 C; h6 a% G<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?0 m: Y  L5 }6 \7 \; l

  L8 v" E% L9 l. B  iI 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.
( [5 M  r" |8 H7 p8 B8 ]# NThis will help all Sony R2R users in the near future as well as our machines age over time.
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; i6 l8 F8 d; B- g3 }1 k  VKind regards, Raymond
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; j8 v" h0 Y* R0 q3 C7 H有沒有用零件做出等效的主軸控制還要進一步追蹤& ]* x3 B: S* d# |$ y' M& B; r7 o

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9 M: X7 I: k4 t+ N* U零件追蹤
6 O1 o) x3 w7 U1 C1 n0 |# J: T7 a+ [http://www.globalsemi.com/productdetails.aspx?itemno=875032100
' ^4 }6 ]2 Y0 ]1 z# A& s: Q6 M& ]/ ~' [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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