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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
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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。
& J" y9 D7 e. E2 ]2 E$ W6 v1 A5 x8 P控制转速的IC, SONY CX-032各脚电压值如图% @' `( \0 ?! o1 ~
22-1.jpg / p! h% Y+ ?. j

) H- X% ]8 P) ^. D是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!+ Y. Q+ e4 t$ \' L
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 - I- y4 A  S. [# g8 O

8 [# Q& ^8 |6 T2 f; G1 X6 g8 e有人走過相同的路了
) ]( }: B( r( z: j* H" y摘自   Obsolete Media - Forum
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, Z) E0 r/ k; M$ R  Chttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 / f: R' _0 ^5 z/ J7 M+ R
http://obsoletemedia.com/geeklog/forum/print.php?id=2025- Z/ P  b1 U' m$ x5 B( S
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Chip CX-032B for Sony TC-558
5 H2 e6 S* q, C: Y& }Posted on: June 16 2008 @ 01:43 PM & T& m- m/ I' d9 I- B+ O. {" _
By: RODALCO
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+ X) {1 Y7 }; O4 S- ]: A9 EContent: ( w" i" i8 G% F+ ]% G! q

8 U9 K8 T& h( \) W4 {0 q$ D  kHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.! {7 g2 F$ i2 ~$ [9 q  ^

4 D+ ?2 s/ a% L- h8 m% mLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.9 j) @0 v  s1 E
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.5 l$ [) A* N+ j9 t( J
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond9 j& y5 L& f( D; _. G9 O

+ Z0 O, q$ h2 C. xChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # C$ T3 u4 Y5 Z' {7 a8 b, V
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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* }7 H+ h! v! Y9 NI 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.
- E6 r6 e4 x4 Y3 VThis will help all Sony R2R users in the near future as well as our machines age over time.* {; C- }0 }1 e0 j/ N& ^

, f/ r7 f8 R& k* Y4 hKind regards, Raymond% u1 g4 U. f/ Y7 J5 z

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8 R9 b  M" u7 K, ~有沒有用零件做出等效的主軸控制還要進一步追蹤5 \- q# t2 p8 O/ x
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( P1 @4 _: u: V" {0 R零件追蹤) G1 @, D1 u$ o1 v, ~0 m
http://www.globalsemi.com/productdetails.aspx?itemno=875032100$ [2 R* d" H" ^) s7 R
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* `+ h# _# J2 G. f
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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