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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 4 c7 M/ N, ]. ~1 A0 j

# J7 ^9 l9 a" W% ~+ w! i$ ^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。
& {. i3 u( g# w! l% I. ^; ~0 j; d控制转速的IC, SONY CX-032各脚电压值如图$ x- E: n  T: \- i
22-1.jpg * n5 y6 A2 p: g

6 x5 @& S8 m  I5 k* l- P是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!, J' F+ _& J9 O* s% A; `
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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- p8 r9 X+ `9 b4 ^有人走過相同的路了! n: l% k5 `8 A, G, S1 X9 k4 M6 t2 F/ C
摘自   Obsolete Media - Forum
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3 Z2 `6 e1 @! t3 G: S# t  Fhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 + `2 S7 i1 Q) q( q+ E3 R
http://obsoletemedia.com/geeklog/forum/print.php?id=2025' P8 j) a" n/ P( g& E: K) E6 |

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0 c! B5 ^- V" n- r, @Chip CX-032B for Sony TC-558
4 O7 d( H: l* g9 T" mPosted on: June 16 2008 @ 01:43 PM . `) c2 I. H% _# u$ m: C) k6 F$ `
By: RODALCO
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5 j1 ]( d" Q0 ~5 t5 h  rHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.7 ^( p+ ^! Q/ \* V0 p8 v- t# J% d; O
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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.7 p; i9 O/ G; S9 A( l
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.
" J) X. n* ]1 G1 Fhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)3 ]1 m# i6 J" P8 k
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)+ u- G1 I% j+ Z/ X) J' i; h9 M: O
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 B* I, L  P! g, h3 y' HBy: RODALCO
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Content: % Y& z: f& `! y. o: y% u
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?0 f1 r$ ^( z) _3 B
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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.) Q5 S3 F9 n3 V! _
This will help all Sony R2R users in the near future as well as our machines age over time.
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6 A/ v$ L0 l0 F7 N% v0 n( [Kind regards, Raymond# `- @( E. R& }0 k7 d" t& C

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. ]/ h3 A* H4 t3 o7 @有沒有用零件做出等效的主軸控制還要進一步追蹤, [6 s" C  D* O! v+ f
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零件追蹤
7 H' n1 L9 u+ V  V4 c; Qhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100/ ?2 `# h# l+ ^% ^- Y
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6 a4 U) B* P3 W+ G9 ^
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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