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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 3 I. G7 L, d9 a
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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。
! E1 k+ F# c: |, Z, U2 F控制转速的IC, SONY CX-032各脚电压值如图7 j) s; q9 o! L0 c: \
22-1.jpg
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+ `: I# R+ v  @: Q/ w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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有人走過相同的路了
5 Q2 G8 m9 W- P摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 2 L; J# y5 G* O' U
http://obsoletemedia.com/geeklog/forum/print.php?id=20253 E" B" i' @" X" p8 |: K

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Chip CX-032B for Sony TC-558: I" x' }2 a% M* y( j# D
Posted on: June 16 2008 @ 01:43 PM
: o7 U9 e/ @7 S6 n. Z3 f) U2 eBy: RODALCO 0 C; N2 k5 b9 A

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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.3 F3 g& `: I6 a& [

1 G1 t6 f8 x0 y! v5 ^/ JLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.2 x5 T! x; ^" z0 ]
A 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.
- N: Z3 E8 C$ M/ ~- chttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)& ?8 {. @; M1 Q/ [- G+ }; ?
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The German Bandmaschinen Forum thread.5 p& g! k& O! h

. _, }+ O- j+ }2 H9 }5 C/ L# ehttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond2 J! Z- Y! g  A" ]( U/ o
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM : d+ w) p+ p) }% n( i' w
By: RODALCO 4 u5 h3 q, S4 T, @
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Content:
7 {2 w. \9 S7 ^/ Z# U. r* i<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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( o6 ^' S& c$ [* ]; SI 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 l* H/ q9 K& s
This will help all Sony R2R users in the near future as well as our machines age over time./ v) m9 ~& @5 s  V
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Kind regards, Raymond
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  G7 [' A; X/ l$ t& q有沒有用零件做出等效的主軸控制還要進一步追蹤0 R& e% ~9 m2 i0 D

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8 d: H( X% o1 B% |零件追蹤. M9 ]3 i" a3 K( ]* N7 |
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 h- p5 y- r5 n0 v3 l7 N39.99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8 T% O& H2 w0 H. }; T8 {9 V
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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