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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 1 x4 a3 o/ Y6 |
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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。
% a+ \" h1 J2 P控制转速的IC, SONY CX-032各脚电压值如图
( S# f- n* D& X# ]4 J, T 22-1.jpg 8 w( F% J" D, s) L% f

+ l! e2 I8 G  t  g是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!2 {: C* ^3 ?7 B7 N6 j3 O
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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有人走過相同的路了
( O. r3 J3 {2 G( w; t+ ~# j+ B摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025   [. Z, S9 i' Y, I  U" |
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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$ r5 z" i: w& r$ WChip CX-032B for Sony TC-5583 a1 Q- w; {0 P+ [" T
Posted on: June 16 2008 @ 01:43 PM
2 s/ x. K" E4 Z/ h/ h* q! ]' aBy: RODALCO
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Content: 3 C+ j) k: |7 I/ T

& e* S" `7 f% dHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.; O0 r& Z- J/ ^! _7 [
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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.- l9 P* R  o: }2 r
A rare Sony turntable TTS 400 has the same chip used as well.
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0 B4 W9 p' n" M$ X7 AThe supllier on this link has the IC listed.+ e# M# L3 H/ }6 v4 I
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)3 d, a8 Z: _3 |& O

! B& ~6 ~9 |) v0 r- pThe German Bandmaschinen Forum thread.% a9 `2 e5 \* }) Y
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond4 c( [5 `- m0 u+ \; W8 C
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! N" G) N0 ^0 E3 o/ |0 QBy: RODALCO
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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?/ g/ b# f% Z! E- z$ T

/ H1 Z  `4 R7 i$ V  cI 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.
1 [* }( G: |1 iThis will help all Sony R2R users in the near future as well as our machines age over time.
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7 }8 q; V+ e" {) K5 kKind regards, Raymond6 D6 D7 L$ o7 O+ j. P

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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. X  j( t( q! R

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零件追蹤' c" e- ?9 m$ j: q0 h: D% X1 f8 E
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
: j( F2 u" ^0 \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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