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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 ! a5 [# _& r( _4 q0 @0 Y& Z
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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。% t/ w/ O2 u9 i
控制转速的IC, SONY CX-032各脚电压值如图
! G$ p1 I2 {- j 22-1.jpg
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7 `  x) }  ]  D+ W+ q; m! J6 ?+ E是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' I* d# V' Y) r% o) p
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9 b4 p# C" W/ ~
摘自   Obsolete Media - Forum; v& {8 L) q+ x8 C; Q2 e: i# F0 |

; }( u' `& l1 P0 y3 Fhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
; z. s* x/ `/ {http://obsoletemedia.com/geeklog/forum/print.php?id=20257 }/ Y0 O9 c, S8 E! r) z1 N6 v0 s

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, @5 Z# I8 s4 X$ U( lChip CX-032B for Sony TC-558
: T5 ]* V- g% o1 z8 E9 x  X7 EPosted on: June 16 2008 @ 01:43 PM
5 a) i) c7 D# C* D, IBy: RODALCO
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& v* ^* U) P+ y& }Content: * i  J. O6 p# A4 S- r

8 D1 `. _5 b* Q3 ~* f6 P# UHi, 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./ k3 m% h% g% B2 S, }! _
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.! I) H" W5 u7 x, [
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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2 F- g: e8 _3 D( ?; yThe German Bandmaschinen Forum thread.3 Y- j9 K' h$ z3 g

0 c  x: l  L, N/ p7 N, k4 O% K$ Jhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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: |4 B1 X2 |' Q2 k' h% eGru�, Raymond& g' p4 p8 R4 Q& s

$ J* H: ~7 H0 O9 n8 a, Q! h7 N5 [Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
( E& x. ?2 O, h- h* g- c9 HBy: RODALCO
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Content:
8 ^% w, _7 @' r4 L( [<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.
' K$ g' `. M/ ^* s4 ?This will help all Sony R2R users in the near future as well as our machines age over time.4 P9 i# ?, J3 t7 W8 q: [' c) k

$ O$ [; m( l3 W# {3 `, L  d1 \Kind regards, Raymond  K2 X7 V# V' I$ w' ~
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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$ A6 j: T) r( }( ~' D) ^
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# m4 q% r/ I) \零件追蹤
0 n; K" u6 q; yhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100( Q" S( H5 k: d# 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
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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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