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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。8 i8 W' ?2 S/ k1 Z# p; x% y! v
控制转速的IC, SONY CX-032各脚电压值如图
: Y# ~& d. f. J 22-1.jpg
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!; G" }" \$ |# [7 y, h0 T
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
+ K' [7 W( D1 c3 A! Z摘自   Obsolete Media - Forum6 i: r- J- n! [1 C- G
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
6 c' [7 {+ n( y, |/ ]9 Phttp://obsoletemedia.com/geeklog/forum/print.php?id=2025/ {7 Q  M( F) Q

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' h0 L! A5 y. V. N( `& a4 OChip CX-032B for Sony TC-558
4 d+ c+ N* O  P+ @% M  e0 cPosted on: June 16 2008 @ 01:43 PM
( H3 i( F/ Z2 q4 l8 T9 H6 n; ?By: RODALCO - v& |0 I8 Q9 g5 E! X

( C4 p3 `0 y5 c6 L3 I/ ]4 AContent:
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.; X8 i: h- a! z* l& ^

# k- f1 K5 s7 ?Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
+ |+ _+ ~) r& M# I: uA rare Sony turntable TTS 400 has the same chip used as well.* C2 r8 d* M5 H$ `# Z+ a
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The supllier on this link has the IC listed.
3 K6 z3 N) w! f! l) phttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)- i7 F6 d" n4 y& X; Z* r! ?
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The German Bandmaschinen Forum thread.
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1 P0 E: A, c; M6 N  uhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效); @; A' t1 Z- \: V$ g) z- n) y

9 n: x$ m( @+ D/ s6 o' \/ y' r0 HGru�, Raymond7 ]; ?, n4 S% m" K5 M: y
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM / C6 D/ z# l2 Y$ X/ n+ i  h
By: RODALCO " P/ I1 H! e$ l4 ^# K
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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?) ~0 W/ X# B  P, c  N3 @

5 m4 p9 O5 X/ S! f* E# G5 n) Y/ pI 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.
8 r& o/ G' r$ x$ O' \0 `& U( MThis will help all Sony R2R users in the near future as well as our machines age over time.1 Z7 D$ z4 [2 E

5 f( v' @" ]/ O/ KKind regards, Raymond
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) I3 m' V) m0 A+ Y* m7 l$ ?有沒有用零件做出等效的主軸控制還要進一步追蹤6 c& z9 R$ E$ y' ]: ]% {  [1 _

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8 p) E# D9 Q2 n* f零件追蹤
! x' u1 I, g& p5 B" ^http://www.globalsemi.com/productdetails.aspx?itemno=8750321008 i/ n* ]7 J9 o, i7 \. _
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1 D* O* C2 N8 c6 `9 z
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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