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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 : M% z) P) H9 G5 e6 {' A  B
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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。
5 I) t7 F" s0 T& R9 W+ M' o  K控制转速的IC, SONY CX-032各脚电压值如图
1 o# b1 I( X4 M3 M  J& | 22-1.jpg
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0 B1 R8 w& k/ N: F6 r6 V是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!) r- c1 p: f7 z/ y+ B
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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" U$ Y- s& R" k/ w, w1 U  ~有人走過相同的路了5 }2 S, Y* a( S7 ^4 U. ~5 e
摘自   Obsolete Media - Forum/ F' t9 d$ i* V; T+ k9 V
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 3 T+ O- i6 ]9 `  p2 H
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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& d" \( a: _; d3 r. J. {4 ]5 IChip CX-032B for Sony TC-558. V: M  `4 Q* h6 J% [- D
Posted on: June 16 2008 @ 01:43 PM 1 L& N$ Z; ?1 C: a0 X* }: D' L
By: RODALCO
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Content:
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$ r8 {; x' ?5 I* O" EHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.  J. i( N; B! r5 D2 a: ~) A
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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.
% s: u' w- g: ?8 ^  kA rare Sony turntable TTS 400 has the same chip used as well.
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4 [$ p% G. ]9 T$ b: LThe supllier on this link has the IC listed.$ H: C- ?  u9 Y) Z9 P9 }; f
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)0 @  p* _7 m$ t+ ~

) |! B/ ~' e& L6 hThe German Bandmaschinen Forum thread.% _* g2 d4 y) `* s
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)0 f% G' h* ~: ~. d, R" N# N

. k( {7 \6 ^6 o6 e* m5 {2 yGru�, Raymond  n) l7 w5 A' w6 _: W- d, d( [" V9 J. `
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ! f/ F2 b  E: W( x
By: RODALCO 4 Z/ j+ ~  {* A! J
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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?
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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.
. D7 `7 I' F: l7 i/ MThis will help all Sony R2R users in the near future as well as our machines age over time.5 B& W$ m7 W) h( ]3 q

7 _6 g/ E4 I) R+ d% x3 @3 j4 rKind regards, Raymond
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0 R* c7 s/ ~9 A* M) ?# B有沒有用零件做出等效的主軸控制還要進一步追蹤. \3 H& k, J0 M$ v4 O2 I

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零件追蹤
$ i; Q6 O8 Y; y6 U- Xhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100, z& S) D8 B8 |
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  z+ b/ Q4 b! b, _1 {( p
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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