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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 & [; i' M- B" R9 R! n

) w- o: |, f: [0 M) e- a- C$ x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。+ T: X4 i* r9 A  u1 C* o: P
控制转速的IC, SONY CX-032各脚电压值如图
6 t, x1 ]/ ^; m# P! ?6 j 22-1.jpg
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是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!3 `5 k% t6 ?6 r1 H" v9 t" t
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 # @/ C+ L( d- V. E8 [; o

( W. _, S) `' o0 j; Y有人走過相同的路了
# J7 e3 |2 Q8 Y4 J! T% \. r摘自   Obsolete Media - Forum, o7 X2 R, k5 {$ L! M7 Q

6 G: O( o9 r9 G+ Q  |http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 / i% _: Q  [! h  b2 m8 A8 k
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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: e6 S5 E% H  j- R$ Q5 D, a9 sChip CX-032B for Sony TC-558$ J4 l. P+ [3 U- N7 p
Posted on: June 16 2008 @ 01:43 PM $ H/ A- F- G& w( p
By: RODALCO ( P: U  S: G6 I6 ~0 c& r, h

8 c% o+ M! e+ b) {2 |, U7 w4 H. UContent: 5 E% d( y  `2 @- V7 m* ^
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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.# D. S" Y* A' G
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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.
0 \" O6 _6 y4 q" P  b% xA 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.
& U; K0 u) g, i& J/ j- Dhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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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)8 Q4 j8 a, s3 I- D' z2 C

& ?. A. g& _/ c% E% L4 ?/ p: }Gru�, Raymond3 l& P. d. a. F9 c! V+ d, j
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM . j% c$ P! T& _0 C0 E8 N$ o
By: RODALCO
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Content:
4 q5 ?/ v8 G6 d; U/ \1 f<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?+ y" v: i8 a: A

& Z9 d3 m( u7 f7 _7 [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.
6 i% I# S; P; I3 `8 [) D- u  YThis will help all Sony R2R users in the near future as well as our machines age over time.6 }3 ?7 f% C- o5 L* M- I- I) [

$ r- q: t4 P: A$ fKind regards, Raymond2 }+ ^: N) |! p! R: G

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7 r5 @+ k. y2 K- Q3 w8 ~有沒有用零件做出等效的主軸控制還要進一步追蹤2 Y2 c; [) g6 Q6 j1 Q* P8 [) ^

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零件追蹤* x* ]* {' Z( k$ F3 m) V, @
http://www.globalsemi.com/productdetails.aspx?itemno=8750321004 C+ p' M& J0 @- S! q% c
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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