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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 1 [4 T3 x# |* Z% Q
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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。
2 ^8 A- U4 J6 F/ H控制转速的IC, SONY CX-032各脚电压值如图
' {" S5 u1 _, B; h. H7 q 22-1.jpg 6 u: `: [( F/ s* J5 f; _& y

# ?3 f& b" W: [4 F; n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
/ f& m: l; @5 q6 m4 Z9 x* I摘自   Obsolete Media - Forum6 E, W$ z8 _' h; U

" {7 G& D+ n: C0 c: z" `http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ( d8 ?; }5 ~+ @3 k2 X7 w
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558( B9 ^1 f- v/ v; g" H& s
Posted on: June 16 2008 @ 01:43 PM 4 f3 ^7 q& B' o" p. ?
By: RODALCO 7 M: y* I+ e) c; F$ K

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5 g+ Z9 D( O* U! g0 F+ ^0 RHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip./ \# H' E; O3 }0 H3 y

. u7 T) c( m) O- A; X- RLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
5 i& `( G4 Y2 ?, R8 CA rare Sony turntable TTS 400 has the same chip used as well.1 z7 @0 n8 q' _& L

5 Y+ l' w0 ~/ H. L, qThe supllier on this link has the IC listed.3 ~/ U1 z* c* c9 u+ H& P
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.- ?0 x+ a4 g, \6 j8 N2 K% ~

! @2 v, @0 Q" S8 A0 Hhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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" d4 F! D$ A7 c, f. C+ HChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 5 A  v! y5 t+ H) ^2 _+ P
By: RODALCO 5 u# g- f$ Z* [

8 u5 l3 b/ }  Y# OContent:
* G/ Y4 t# ?5 g$ q( S1 A, y<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.
7 \, S7 p  ]( q5 M$ v0 p9 `This will help all Sony R2R users in the near future as well as our machines age over time.: @6 E4 s# N! _1 ~/ ?6 E

5 }* a7 r, T' NKind regards, Raymond4 o" {# r+ a2 D- f# F0 @

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, j2 N6 \! r- ]. d( \有沒有用零件做出等效的主軸控制還要進一步追蹤; X4 Q8 _4 ^( t4 w. y

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http://www.globalsemi.com/productdetails.aspx?itemno=8750321008 A% ^. @# [, R7 p) Y
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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