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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。
7 L* }. z- }1 j. G' r$ I2 [7 k控制转速的IC, SONY CX-032各脚电压值如图4 i" j4 x9 Y0 r- q1 G* T) v
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!& w$ [, ]  g3 I+ B7 N9 X
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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% R4 q6 X. V4 f- @1 x, b3 i( A/ q2 P有人走過相同的路了$ W% R, ]- j/ k( `
摘自   Obsolete Media - Forum% K4 ~0 D0 }" P# j8 a& M7 n' e" u
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 % B5 X4 T( k$ w
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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4 |1 Z9 O* V0 H; UChip CX-032B for Sony TC-558
" M# f5 V& k. \) h, NPosted on: June 16 2008 @ 01:43 PM 1 R8 U+ d) R' t* Q3 g
By: RODALCO
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5 u6 ?" D8 b) a; b/ u# DContent: ; \. o" ?+ G! R- {2 ~
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.+ W$ O+ P' O9 w9 L2 S" P

% ~. h" r1 n& h4 V: GLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
) b' J9 y8 ^7 R& d$ x( r, J  fA 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.
" U: u) }  @6 H1 ~9 {http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)5 o2 U, Y, J6 Y* _2 d" h
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The German Bandmaschinen Forum thread.8 _- [8 h/ G4 a' \/ |* P
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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6 r$ d! [+ y( q+ X) T1 M; z- {( uGru�, Raymond9 a. l' s& a2 q  d2 e6 g: o

3 c: l" s1 V9 s3 \Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
/ {: U5 p7 c: gBy: RODALCO 0 _/ |9 {( Z! |) Z
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Content:
: v1 f6 R$ q8 ]/ i  T& n<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.0 }" |! K( B& A+ o2 P0 z. t6 \
This will help all Sony R2R users in the near future as well as our machines age over time.
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Kind regards, Raymond
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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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9 b8 Z& }6 Z' b& h; v" R零件追蹤
" K& E, U, V# O! l- Ahttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
- i. M7 F+ Z3 v0 g  r0 w* V# 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# [, X3 d; k3 y) I  x' W
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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