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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。9 e  \; A0 h$ C8 A
控制转速的IC, SONY CX-032各脚电压值如图
' J& e/ C+ d8 v 22-1.jpg 6 ]$ o% G5 g+ x/ T5 D

$ F" W/ b* a' a: r# M$ n$ J# M是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!2 W& a/ I1 r* N4 Z  ^4 ~0 m
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 % J2 p( H3 H7 j! J# L" U( A$ Z

+ l2 U' }6 f& v" \, c6 E4 e6 _有人走過相同的路了7 j+ r: Y0 }5 P/ J9 Y- K1 t
摘自   Obsolete Media - Forum
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4 C4 w& c/ X# y0 b5 H. ]' w5 h/ F2 bhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 7 b; T8 O% |; y8 p  h. `
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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2 h( f% r' U. N8 K  A' J* k; kChip CX-032B for Sony TC-5583 Y# L  ^2 S0 {' X
Posted on: June 16 2008 @ 01:43 PM   e4 I, j0 M) U* N
By: RODALCO 4 e  P$ \5 M! |& w/ R% a) B% N
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Content:
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' \1 Z$ N, T3 ^7 Q, u  U8 B, VHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
! u2 C- h7 P  Y+ Q* K1 K7 gA rare Sony turntable TTS 400 has the same chip used as well.' s8 j6 ^2 n. ?7 m1 s
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The supllier on this link has the IC listed.8 t5 w4 ~) \3 y' @) u' p. _
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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The German Bandmaschinen Forum thread.) m9 O) j! x8 N1 |! }7 I, B

( ?$ \2 K2 Z- `% e* ?+ s  U" Ihttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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Gru�, Raymond2 P2 x3 w, Q. u# J" k

9 O4 C2 x4 p$ J  i, P* VChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
# H- f. y. t4 U* o! QBy: RODALCO
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5 Z, W0 x8 M3 |( I, wContent: ' G/ n2 H9 H0 H$ R1 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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9 g- [$ v( w0 F; DI 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.
( x/ R7 M" i8 p8 p, W! IThis will help all Sony R2R users in the near future as well as our machines age over time.+ ^, l* ~+ C' J" \& G+ `* K

7 r0 P/ Y( q0 e2 w% V+ k8 a' pKind regards, Raymond' @. d3 F% ?. {# |6 c
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& J; u! `% n0 d2 i! A( Z3 I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
& s+ `( s9 n+ V2 M3 qhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
  U6 {6 u* o9 O  I; E39.99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) c% T: M- x: d: P+ g- O
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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