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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。/ v3 O/ I' A" G5 R6 O
控制转速的IC, SONY CX-032各脚电压值如图
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# T; R" C- |! y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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  K9 r7 ?% [! P' q4 G* I有人走過相同的路了
" e$ R' d9 u) {4 [摘自   Obsolete Media - Forum4 D& @# t, _/ l8 z4 m9 D3 `7 o
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 # O! [* I* F2 w# Z) z0 K
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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7 s/ m! \2 ?- N  fChip CX-032B for Sony TC-558
- K# @" R7 t1 v0 K! q# Z; w, dPosted on: June 16 2008 @ 01:43 PM # n% D! B3 W! r: |
By: RODALCO
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2 M; H* J% O8 N; |4 j5 FContent: 7 T6 c3 g+ ^3 b8 P6 r7 ~- r
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.! o7 L, l, e1 p! u# i

* f9 S7 g4 ^: I0 QLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.* V  |! E6 O' H1 p% t3 S
A rare Sony turntable TTS 400 has the same chip used as well.2 J; I3 ~5 i" H7 Q: A9 _* j
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The supllier on this link has the IC listed.6 H8 x8 w  X" o! L0 o
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.5 \' E5 {; i& g. N: S
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)) S4 v, d6 W3 D7 r9 K
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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM 0 ]6 {% I8 p9 _
By: RODALCO
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Content:
4 ]4 i6 W) M& C( `  A  F' {. d8 s<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?9 ^4 t) [4 @  C- m; x9 E

# K& S+ L6 P; S7 u. D" N& E" `3 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.
# O4 {( X/ r" f4 k) uThis will help all Sony R2R users in the near future as well as our machines age over time.
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4 y) p& S- f4 Y) b- Y4 A# wKind 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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零件追蹤
: e; k! ]/ B. \: Zhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
3 q- M  e8 T( M3 W8 s  |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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