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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 . V  ]/ \0 K1 l6 a! Y
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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。1 L: u% T* |- l- e0 V. o
控制转速的IC, SONY CX-032各脚电压值如图  C* ^0 x/ L  z
22-1.jpg
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% `/ ~1 O- S1 r+ z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 8 ~- n4 K/ `  z) X, \. B

$ V+ C, N7 c  ?8 K; n( m, q" u有人走過相同的路了
- ]  Z, M% ?) P" l: F摘自   Obsolete Media - Forum' Y$ a, L6 w- G: x

* v( k1 E- B/ bhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 5 q& k- g1 {$ M: z8 Z% r
http://obsoletemedia.com/geeklog/forum/print.php?id=2025! D0 P' n; ~: b1 W
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/ Q. w/ H1 O  m0 v8 v7 y; VChip CX-032B for Sony TC-558  C$ t& R8 z0 c! K
Posted on: June 16 2008 @ 01:43 PM
# y3 c- ~) a: u$ T) V+ xBy: RODALCO
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Content:
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Hi, 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.' c; i- i( W: x# g# `& c/ J3 L
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.
$ m3 p, p% O8 i: I: c4 V; T. Lhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.3 p7 u. r, ]. X- C/ q+ j

1 [( J( J2 f, k' lhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
$ K9 f6 b' G0 g7 q; tBy: RODALCO 9 s2 n/ u5 v* D
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Content:
3 u' h; x. G& P; U$ B; k& k% V' m<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.  z- Y% ^& [) n: G
This will help all Sony R2R users in the near future as well as our machines age over time.9 l6 N- y, I  W7 s2 ?* F% l4 d
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Kind regards, Raymond
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! ]0 {6 a% A5 |) q! H; [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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零件追蹤5 X, C; D5 B1 [) ?- O
http://www.globalsemi.com/productdetails.aspx?itemno=875032100! A0 @8 p9 Y1 x9 K3 R5 E# I
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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