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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。
( C5 F# L4 `' t( ^8 u控制转速的IC, SONY CX-032各脚电压值如图
6 z" Y9 h! w; p5 r+ n) x, U 22-1.jpg 8 H- l# t: F. ~- {; ^
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!/ k, ]* B" M$ B1 v% Y! 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 ( I1 A6 X" f+ W( C
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有人走過相同的路了+ f: r: ?3 g8 E7 ^' V8 i* Y1 B% b% x
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
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Chip CX-032B for Sony TC-558
! P$ j% D# E. v' N# U- T! G: F0 YPosted on: June 16 2008 @ 01:43 PM
; [2 l; @( q4 p; O4 R1 o- Z4 tBy: RODALCO * E( q( l- O7 x2 l

- F* e8 C. w! P5 ]- g/ UContent:
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  s; d; N7 n$ R( ]4 `Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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6 ?9 v; V+ }! _, G' qLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
( Y  S) O. ~# g6 ]% V! _3 @( ~/ P) u) HA rare Sony turntable TTS 400 has the same chip used as well./ y8 ~) c* }, y4 N. `

$ R( o; P5 H+ |The supllier on this link has the IC listed.* u& @& B8 N5 {. H' l1 F  P
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)( h# A, S( `5 l
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The German Bandmaschinen Forum thread.
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1 a: @8 X8 V$ }% Q2 K  ihttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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3 m- x0 b4 S; ZChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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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- t" U( D8 m6 N! u2 Q. zI 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.
6 v. L9 H4 N  YThis 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
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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" L( f! u6 C4 M5 O' A8 c- Z
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零件追蹤
: k; s6 m! ?7 E' U/ nhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321003 x7 x8 K( D$ j
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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