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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 , a, X/ Y" g1 X
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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。
0 y9 g5 V& ^9 x; m5 T控制转速的IC, SONY CX-032各脚电压值如图
; M" Q& r4 |5 J$ x2 | 22-1.jpg   e% C# Z2 V8 K2 ^! e7 z- u
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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 X7 n3 V1 R3 U& R; L! T/ M
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 ( C% l2 m, h8 G! y+ j8 F

8 N2 w+ H9 r# O8 K$ f7 r4 J8 O有人走過相同的路了
8 u" P3 B+ A1 I  r, ^8 g3 X8 f' A* B摘自   Obsolete Media - Forum4 f  f3 W" W. m( v$ W; K
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
. U3 y/ I7 S) v& E' n1 {http://obsoletemedia.com/geeklog/forum/print.php?id=2025) W) T+ ^5 @% y( W4 ^$ N5 n6 u# y1 b
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/ Y- `( E' x  D/ K3 _8 [Chip CX-032B for Sony TC-558% p, C: b& U0 n: s& J
Posted on: June 16 2008 @ 01:43 PM 4 g# M, o8 D- W5 q" V. k
By: RODALCO
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Content:
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  k( \: g* T' H! ^: D) XHi, 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.1 H7 s$ t3 h. [
A rare Sony turntable TTS 400 has the same chip used as well.
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$ k6 G3 b3 S! v) h0 P. U8 CThe supllier on this link has the IC listed.2 c  ~+ `5 w; }8 B1 T) |
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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) Z2 O" q2 K  l6 m9 y, c3 I! c) N5 wThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)* U$ D( N; S3 |) r0 _/ a

$ F' b; _2 I+ O% R  H5 VGru�, Raymond
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) {- V5 v* L  @9 _" AChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / [# p4 A) F4 `  m( C" h! r
By: RODALCO
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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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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.
* a) I" o% l0 {% h6 a' ^, iThis will help all Sony R2R users in the near future as well as our machines age over time.% d! t- \/ V" A* O, n. X
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Kind regards, Raymond5 W# l8 X) c* V% h: [

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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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* r5 y& U0 c# R* w. i1 d5 c: ~零件追蹤
. ^6 d$ n, T: W3 E1 Ahttp://www.globalsemi.com/productdetails.aspx?itemno=8750321001 P3 i. |" x3 _0 t+ m4 D3 H
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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