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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。* p6 _: `# d5 I. j
控制转速的IC, SONY CX-032各脚电压值如图( E5 |) j2 D) j% v3 |' m
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
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' @" k' o  n9 C( u! \( O有人走過相同的路了
  _' B* q$ A- V1 O1 H: ^4 T1 O7 |摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
' K  B+ B5 }* L2 z! Z7 r2 zhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025
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( R6 v! i8 X/ R) ?+ c. h! Z0 N2 {Chip CX-032B for Sony TC-558( i9 s! V7 m# }1 b" L" d$ e
Posted on: June 16 2008 @ 01:43 PM
: k. Z7 p* Y, K# b+ fBy: RODALCO
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( ], e% j0 W% L% N# v3 e2 s4 B/ J2 DContent:
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. {4 h4 c- r" r8 B* s3 ?9 [Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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$ q) v' F3 v; d- V9 M2 J$ ]/ eLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.. V" A, M. x; W; {: M: g3 j
A rare Sony turntable TTS 400 has the same chip used as well.( ]: [7 `" Y+ R4 z2 K6 ^% [
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The supllier on this link has the IC listed.( h6 B( e5 ?; }8 _: i! y
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.6 m% k$ A5 x0 v0 b' I

; s+ K# H6 |* g. }1 ohttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)/ S& N, l9 T3 I. f8 c

$ `- q7 g+ q5 q; n6 k& r7 L  }Gru�, Raymond
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! \7 K# e6 s$ B0 f4 V$ V% J" OChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
4 J; u+ H3 V# n% Q: K1 \6 DBy: 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?2 P1 b$ [( W8 A. F  }6 i" f5 G- O7 w

2 {# {) _4 F& \* s8 K: g) vI 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.
  l! z" ?7 g& mThis 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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# T, d6 |6 d' r: _4 \6 y有沒有用零件做出等效的主軸控制還要進一步追蹤1 {8 h  S3 u1 k7 F* j, J# M

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零件追蹤
* k" ?' z2 n* i0 @4 W& ^5 Jhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
. L9 H* B  W  k) F& k7 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* F8 U& w1 M/ ~2 ]) ]
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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