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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 6 S2 U3 Q1 U3 z) i7 R8 c

" h* V; N# }- R9 f2 b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。: l8 h- C6 H- v/ R% Y
控制转速的IC, SONY CX-032各脚电压值如图
- P% ^* N- c4 G. c/ } 22-1.jpg
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  n. d1 q  w2 `; B) A/ ~( R是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!9 N! X/ Z8 I% E! D2 U) [+ d, n
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
& g/ P, k, A. ?; D9 b  b/ O摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
4 S1 O! D7 ?0 K0 A3 }* Thttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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7 c* q& \# H- P" T. dChip CX-032B for Sony TC-558! k) F/ d7 L, T  r0 f
Posted on: June 16 2008 @ 01:43 PM
" W; l: c# J" s, ?& L" ?* U: QBy: RODALCO
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Content: # R( T. p: f& t' b
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.3 F/ Q  `1 X; v) h/ W+ A6 t
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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.
. F2 a# m4 {" UA rare Sony turntable TTS 400 has the same chip used as well.. ]! l" s' x, U+ X$ S
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The supllier on this link has the IC listed.
: f/ i' W6 x6 P8 H# vhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.2 x( }" ^& |, P/ z( P$ g( H! t
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond- c1 w* T5 t7 d5 ^- U2 D% f

; |  W8 e8 r1 l  F+ a; yChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM * u7 k: n- J( `3 n2 m9 I; }
By: RODALCO : o6 T  N' H1 Z% l, Z1 p, ]

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: n1 j8 B- k* p& C4 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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4 N; e8 r4 ]4 u: {: BI 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.
3 E$ s0 T1 d5 G, a1 x. C; R$ QThis will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond  L9 g7 s# P$ b3 ~
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8 c  ?/ h" G2 X  z! I: y" e有沒有用零件做出等效的主軸控制還要進一步追蹤$ N$ J+ ]* `% [+ l) j# u  K1 |

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零件追蹤& s, m; X# k1 M" Z1 w5 F( H
http://www.globalsemi.com/productdetails.aspx?itemno=8750321001 f5 r( |* {* _- L; C5 ?
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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