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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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# V, Q. f0 ]" X, ?: l0 c" g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# p6 o: I( z: Y" s# T控制转速的IC, SONY CX-032各脚电压值如图2 S+ I5 `9 }) P$ G4 v
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!1 M: l  E6 C0 l3 W! z- p) 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 # ?4 S9 E  r/ Q

0 h2 I% ]1 n2 E2 ?1 g有人走過相同的路了
; T# y% Z' w" |. @  e. c+ G摘自   Obsolete Media - Forum/ R3 h/ |8 L" `5 X* K2 C+ F
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ; H( I1 Q; D% U% A! Y
http://obsoletemedia.com/geeklog/forum/print.php?id=20253 o( V9 B# J/ ?, k
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0 [2 U* S" {, @) l5 ]3 c4 W% UChip CX-032B for Sony TC-558
) ?* s! ?8 x0 m% G* g5 F& V9 F! ^Posted on: June 16 2008 @ 01:43 PM ( `- G# T/ ^; n# A
By: RODALCO 8 K, L5 D2 m% x* e! c
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Content: ) R& H: v3 b' B$ Y! _8 b) `
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.( E9 Z: a4 S, h1 H
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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.
, }, A. e0 V5 V0 PA rare Sony turntable TTS 400 has the same chip used as well.6 D8 c# Z5 v$ q/ y% s& B

" f5 ^1 h( P; ?3 bThe supllier on this link has the IC listed.4 |; ]5 D- T! v4 }6 Q
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)  L9 ]* n) P6 I! W) W) B/ L
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The German Bandmaschinen Forum thread.
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  x& t8 o$ y7 rhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond
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2 d4 H( K# l* T8 x8 o* IChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
; X% p! F/ s* s# q4 I! SBy: RODALCO # R/ U! [3 r2 m. t% ?

: J. Y4 Z0 ?2 V+ p7 lContent:
) M2 q0 ?& d4 B. k# v4 a  |3 {" D+ ?<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?! c' m& X# V, B/ b

/ K  N- r$ W4 _$ [. II 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.( W8 [, J, Q& L+ V; P+ O4 \" _
This will help all Sony R2R users in the near future as well as our machines age over time.9 r! S6 e# Z# C; ^9 h# U
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Kind regards, Raymond
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' }  ?7 M- i3 s7 B有沒有用零件做出等效的主軸控制還要進一步追蹤5 c: ?7 O0 M; q: @
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4 ]! p! T8 ?+ h* s3 p& ^& D7 Z零件追蹤/ C. Q) m- U4 y$ a" }/ R' ^5 ]
http://www.globalsemi.com/productdetails.aspx?itemno=8750321006 |+ B$ r3 A8 A
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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