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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。) G, r5 V! e6 F7 f% \/ i2 C8 W, }% B
控制转速的IC, SONY CX-032各脚电压值如图
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!% z3 i$ `6 h7 Y( w4 d
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 ! e' }( ~% e7 z1 Q

: _0 o, [/ F* G7 k# b7 v有人走過相同的路了
, w) T2 D, _) l  K' _摘自   Obsolete Media - Forum
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3 F9 S( N6 \. Ghttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
# }) B' `& Z. l0 X" Mhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025+ i6 v* Z# m  R& G2 C6 ?

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Chip CX-032B for Sony TC-558* Z9 q/ m2 J- w1 k& l
Posted on: June 16 2008 @ 01:43 PM , n. L, D" P) V' q/ D
By: RODALCO 4 _2 v' l: v6 L0 p: ~2 b) ^
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Content: 5 N: h/ b' i/ f; q: x& r' W

. u1 T; v( c+ ~9 X5 S; PHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% f) d) q, H; w  Z  ]* _1 Y3 i

1 Y9 L4 e6 e, a9 jLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.' {& J9 b  U) z- }! [& K9 @  A( Q
A rare Sony turntable TTS 400 has the same chip used as well.) F7 a) D1 Q( X  u+ Z2 d

6 Q/ t* R% |; d2 h% j% \; jThe supllier on this link has the IC listed.4 s6 s9 _3 @1 V3 }  P
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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6 g3 x8 ^3 u" OThe German Bandmaschinen Forum thread.7 h  i+ w/ \1 h

1 C/ s3 f8 n: J0 T- s0 r6 ^" ^  Ahttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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: H1 z; {, F+ l8 ~Gru�, Raymond
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' ~* r* b+ U- ^3 G, Z  g. S% nChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
! m( h% G# S- n2 V( uBy: RODALCO
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Content: 5 M+ |( f+ m7 P8 |% U: f
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?) _/ {  y9 {& S: n" q9 T

. E  K+ B2 F8 \: R8 u. ^1 V  _( @I 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.
7 z. F3 H4 f# @# yThis 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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. ?  L7 e  T6 c7 K- [0 s有沒有用零件做出等效的主軸控制還要進一步追蹤" _% V+ I3 ~, f" Z, s( B4 |+ Y5 h
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零件追蹤
* N* B+ }' y7 _+ m/ Qhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100" ?5 c  A0 s* D( k" l' E' p% f
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/ K) `# E3 U% q8 T( c
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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