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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。2 d- u8 @' D& r* S$ y
控制转速的IC, SONY CX-032各脚电压值如图3 }2 \: I" _% D% ]" u
22-1.jpg 4 r, \* G) m" k+ D9 B# I

( W6 C) N& e3 a7 Y/ D- z. O是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!6 ~4 [) _4 v) M3 M
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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: w7 o5 ?+ z9 K" n3 L; l' w有人走過相同的路了
. h: R: Y" C" N8 W% _摘自   Obsolete Media - Forum! N' Y' S+ @4 ], H4 V
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 + k8 [  r9 D; {4 e- r4 u! u# V
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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! b' y# C2 e  c* W! J: ^7 e" nChip CX-032B for Sony TC-558, O5 g+ w; z9 T3 E- @% y( {
Posted on: June 16 2008 @ 01:43 PM
' ~( _* t+ f3 x, y9 u1 T% D, e& cBy: RODALCO
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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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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
1 D7 @/ k0 g+ K$ J, tA rare Sony turntable TTS 400 has the same chip used as well.. i. p  b( `" V7 B6 l& ]
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The supllier on this link has the IC listed.) ~& G0 M* w' i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)4 B6 i# m5 L# x" ]5 I  W
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The German Bandmaschinen Forum thread.
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" @+ p  w2 W9 A$ ghttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)$ k3 a, W0 }4 G$ R0 N! |6 ]" N% v
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Gru�, Raymond
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* o* G% \* h, w' R2 Y) F  rChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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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?4 j! ^6 H% o) P+ x

' a$ V- D$ ~  c' C. SI 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.
! B4 O# X2 i8 H# I+ ]5 L' zThis will help all Sony R2R users in the near future as well as our machines age over time.' U/ D& {9 [; I" }
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Kind regards, Raymond
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  b8 ~9 h5 H' Q2 C) R. h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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8 T+ {* a' u1 t3 d) j; E, l零件追蹤- J  j# V. r* p8 V2 _+ l+ ~
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
# C& M" b" c4 F+ X39.99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; j, I, n- d" p/ m
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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