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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 - h0 o1 U: \6 z' t: c
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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。
1 C& X& S/ U: c, I) H# }& n' D控制转速的IC, SONY CX-032各脚电压值如图
1 K7 Y# q6 Q6 y2 J 22-1.jpg 7 O6 L! X2 Q- D
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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 9 m* d' l" ^! d0 }7 m& x; I  v

0 z4 W0 \& [/ Q, z9 y有人走過相同的路了
7 J3 q( ?8 A, ?2 l9 S摘自   Obsolete Media - Forum+ B& G* D* o& f

- C6 w* o8 }5 M6 w' Chttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ( a+ a2 `! a$ _# o
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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Chip CX-032B for Sony TC-558
( I1 z8 F6 v, y. C& W& EPosted on: June 16 2008 @ 01:43 PM
# W; {5 n$ z2 t( l- @By: RODALCO
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Content: 0 \; R% N4 F) V0 z' ?, }) p( G

4 k4 J6 T7 r% x8 s' k9 JHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% _" g3 A0 q8 F9 n7 a# U1 c

% ~4 U8 O6 ^1 n* j2 j9 g8 {4 a; MLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
6 @! G' w$ o; Y4 E  t" `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.
2 s/ F, j9 v  ihttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)! ^6 K. y. P0 ^
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The German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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3 c: s5 O+ M5 v3 A' P2 uGru�, Raymond+ X: G5 `* H0 H) L6 e" s

2 V: t) r, v) g- BChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM , O8 Q5 h% e* S. D, o
By: RODALCO ! Z/ Z' |$ n% `
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Content:
/ n" c; r, E# d; j  _<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?" E8 Y. D- a/ p: g

: A* R9 K) I' l" k* X' j* Y, `$ ?) NI 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.
" @1 s; I1 l6 h4 UThis 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. P$ |/ k& _( c$ F; i+ f6 K( ]
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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; R- c* K& K. E7 P; Z
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
+ ^8 @3 P- v4 X) O39.99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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