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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。- W, o. l# \' V: C, F+ C
控制转速的IC, SONY CX-032各脚电压值如图  b  M* C$ T+ I. g6 E
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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 ; O4 r& B4 N/ p7 g! H/ [
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有人走過相同的路了; p: j7 @5 ^6 T6 x! o2 u$ {
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 + n# ~' Q) j0 b9 [( K) x; ?. X( ]
http://obsoletemedia.com/geeklog/forum/print.php?id=2025+ }, x/ I! H  J6 `8 S

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# D: m! ]2 b! m: _( _+ g5 HChip CX-032B for Sony TC-558
4 Q% ~, F) B7 f0 E7 F# ^2 CPosted on: June 16 2008 @ 01:43 PM # t4 @7 I' ]! O  O5 A
By: RODALCO
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.; n% k# R* ^- l. f
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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.
$ |9 {  P8 H* I1 j4 u+ a" [8 X7 eA rare Sony turntable TTS 400 has the same chip used as well.+ a* @6 `- p- K6 `$ w6 ?

7 P% d6 B9 T! FThe supllier on this link has the IC listed.' K" R, y% q! u0 {0 C5 D
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)# q2 d( G) O1 K. ]! u
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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�, Raymond2 a( D5 b) k, V+ N/ T. k/ g
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM & D3 ~- E  b3 h5 C7 c; S  z1 h
By: RODALCO 5 H7 o: ^* u+ n$ 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?
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4 ]9 d% V# O$ h# U9 j2 VI 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.
$ B' s- \2 A1 A, K  q2 G& r- o7 OThis will help all Sony R2R users in the near future as well as our machines age over time.0 f4 f( |" _5 ~" w+ |) ~  ~

9 D' {, x9 a9 X( M& p3 TKind regards, Raymond
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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; O- A% P. |4 t1 c! c
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' D5 B8 t  J' b" Y% b) t零件追蹤# V* f+ T  H$ b% p: [1 r3 N
http://www.globalsemi.com/productdetails.aspx?itemno=8750321008 ~. A5 m* ?( }) e! r) Z
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: Q" k3 ?- Z' Y; F
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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