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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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. D0 S  K- D; Z5 E: T2 j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。
/ L# g7 B* K! q0 W5 W, `2 D控制转速的IC, SONY CX-032各脚电压值如图* t/ {( \9 X5 F9 G* u
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!
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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 9 {/ _2 Z  I7 ~; n( T

# p  A- j( I  o+ n7 E* j有人走過相同的路了. X5 ~  v, I3 N- \! V- V( U" k
摘自   Obsolete Media - Forum6 W/ l$ P1 D2 X4 c- {

8 \" X. Q2 W4 X& s( N8 |! Shttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 " m. G- Q- Y0 h% P9 A) F
http://obsoletemedia.com/geeklog/forum/print.php?id=2025( q  }$ x! _! h/ K

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$ e& @* M! V7 m+ Z6 l/ a: zChip CX-032B for Sony TC-558
& s6 e7 q8 j- J2 ^7 O; cPosted on: June 16 2008 @ 01:43 PM ( a* S# c# C) {, K
By: RODALCO
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6 `# H) t. q9 G8 d0 n- T( oContent:
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% q0 L$ w$ j1 n& n4 J$ ?6 IHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.& J& o/ w, d) ]+ O; U- t
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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.: c, f" U! O2 X; \/ F3 v7 m% {
A rare Sony turntable TTS 400 has the same chip used as well.# I7 S2 a& @+ R8 g
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The supllier on this link has the IC listed.( R1 H8 @& O: Q# [- i4 H7 J
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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0 Q) V1 K. |, D. a  g, A9 hThe German Bandmaschinen Forum thread.6 D2 x  `. _- M6 O
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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' k4 C& |% y9 |/ [0 H; N/ s  gGru�, Raymond
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8 c8 o! S8 G) e: }- wChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 3 x; j, G' f- E( |8 W
By: RODALCO ) X- k; T/ y& }4 f) P6 f, B
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Content: % P& I5 r0 I- W1 O9 ~- s
<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.7 Z9 D& ?- j6 Y8 q
This will help all Sony R2R users in the near future as well as our machines age over time.
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1 x# p3 W5 r/ m0 I2 S! ?Kind regards, Raymond6 v: R/ U% Z8 P  S4 d% x6 I9 Y
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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
. P& h2 B0 u" {9 ]# khttp://www.globalsemi.com/productdetails.aspx?itemno=875032100  j) n- K" u! T/ o
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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