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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   b( u' X* N7 u$ m2 Y! I

7 K% R' _  z/ l  C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。
/ g' b$ F9 s- j; ?& k2 q7 \; H控制转速的IC, SONY CX-032各脚电压值如图8 y$ q9 o% g) U- |. ]2 ^% ~. }1 L# f
22-1.jpg # z5 S/ i' x# D( h$ @, w

$ v; `1 i8 _0 x是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!' b2 F0 A$ n( h$ F
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 . U9 D3 ?( h! ~
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有人走過相同的路了
6 W, C: }4 i; m* V7 G( n+ F3 N摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
# A$ P$ E, z4 m6 dhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
: I/ L" H( y" Q. \; CPosted on: June 16 2008 @ 01:43 PM . m3 C& t* x8 N/ k6 h
By: RODALCO $ \; }1 l/ e' U, {  @( |
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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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4 ^9 O4 _; q( o1 n( A# ELuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
( _+ X1 E  s4 J* c3 H1 E) n2 v* gA rare Sony turntable TTS 400 has the same chip used as well.6 T( Q8 F' R& E3 u& U

) F4 g- z+ H4 s* r" @  u$ FThe supllier on this link has the IC listed.& v5 B4 Z2 z. Q' v: t# [* A
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)7 Y- p: g% ]7 s/ h& V

) x5 y8 Q% ]1 y" I7 r1 H" YThe German Bandmaschinen Forum thread.
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- ]2 _0 g, L, ~http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 b2 A: R4 p* Z  u0 B% N4 `5 \( d) t
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Gru�, Raymond, {' _% i* Q  ~3 m" O4 x

4 n1 _4 b- n$ I+ _4 C7 y% P" QChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
& w- |, u9 D/ Z! ~By: RODALCO 5 a$ }) Q1 N* w- e4 t% y2 I; X

9 N" ~3 R* R" O( B. Y" k" L& J% pContent: ! P" c/ x& {# w. z! p. f$ J
<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.9 D- X! i# {6 n0 Z& z. b! F
This will help all Sony R2R users in the near future as well as our machines age over time.% |5 K% D! Y8 l5 D4 |( r
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Kind regards, Raymond# u' V  v# \; E

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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
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零件追蹤6 }  e. A" _' g9 ?4 i% u# C8 G
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
. L8 k7 k2 x, L4 Y  D( @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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