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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 - J% K3 r5 q5 o2 d( E. c

; _0 k! j2 P' {: t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。+ U- k9 [) S- ^- a
控制转速的IC, SONY CX-032各脚电压值如图+ q1 z' w7 V  _6 _; C% Z. V
22-1.jpg " ~$ I! f: b% _7 G
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!+ ~' d+ A# R( _; h: H7 S7 e9 q
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 * O, T$ ]- U) ]2 t" z

# @, j1 q, y4 E# \& {有人走過相同的路了
# }. R; {. a/ a摘自   Obsolete Media - Forum& A# ~1 _) [- }, t6 _8 K1 Q6 z
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 8 ~8 D) E. \' m+ l+ R
http://obsoletemedia.com/geeklog/forum/print.php?id=2025- C, I  \5 |7 ]3 O; I  x; \
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Chip CX-032B for Sony TC-558
- P$ y, w) u' \: Y* UPosted on: June 16 2008 @ 01:43 PM 3 k; F' S2 L, s: [" [# C
By: RODALCO 0 p5 c% T! D. k, ^6 i+ [0 w

7 ~, X" ^/ X& X' LContent: ( h) @' ^+ {' Q2 b) N

* z( U( U& M9 jHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.- S2 q6 r) B5 z

! B3 ^- @6 t7 L( mLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
* X. Z6 w4 n$ @A rare Sony turntable TTS 400 has the same chip used as well.8 u/ }, ]' f% u+ M  y

3 G  ?- g; I! M: MThe supllier on this link has the IC listed.7 P- N3 u9 H: P6 h. x' V% q! i
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)4 e+ T7 U7 ?! U+ R3 X3 G

' T$ U: x9 q+ w3 DThe German Bandmaschinen Forum thread.
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: }4 q3 b) x( f& M2 r( m3 [. {http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 |7 w' W" A2 l* L

# ~+ u3 D7 u# F% ?; B" }Gru�, Raymond8 Q1 t9 `  j5 h, W6 N
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM $ w3 H2 o, k. C' o/ r
By: RODALCO
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Content:
7 B/ w5 g  ?; K' [9 j9 I4 v<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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2 ~: z: J! ]8 h9 k8 JI 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.
9 D: r7 {' I, 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( ^! i7 S' c; [8 T

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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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- V5 u+ j' D1 V零件追蹤4 U- E7 t6 x' G) U
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
' f5 @$ O& [' Y  [0 J39.99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% A, x0 r+ z: e- L* [* |
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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