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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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3 Y( f: a$ n* h; H+ v) `% ^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。& c! l" p6 h- `3 s
控制转速的IC, SONY CX-032各脚电压值如图9 r% B4 [! g" X
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!/ F9 i9 q" Q0 J
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
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有人走過相同的路了5 Q$ o$ B$ e8 U% j  \5 ~- }1 x1 ^
摘自   Obsolete Media - Forum0 b* b8 @1 s$ S0 l. k2 a8 `( K9 z3 _

: m0 {. q8 {" Q7 A% O$ x% Fhttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 7 o1 n7 L& `! x7 b/ V
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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* V" J* c, n. rChip CX-032B for Sony TC-558# ?3 c  N) Y' l% v) p1 T
Posted on: June 16 2008 @ 01:43 PM . Q! I2 d5 Q# H  N
By: RODALCO - [7 w7 n4 K; \4 K
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Content:
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* W( s7 ^) S6 J' }$ m! B4 XHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.8 J9 k. k# U% S7 P: x$ j+ H

% M3 B5 l- g: @# ALuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
5 A7 [& g) W' C4 j. ?9 I/ |8 DA rare Sony turntable TTS 400 has the same chip used as well.. N& r9 `% M* u0 W" Y# z5 \& t6 \

+ ]2 W, W1 r0 W' U  u1 {2 bThe supllier on this link has the IC listed.
5 x- Y9 E$ W* b+ ihttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)' ~2 m* ^/ D$ M  w0 C! R

( n( f# \. c! k4 X8 g. I4 [0 ]  VThe 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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Gru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM # ^/ G2 |. l4 x" f% c* k0 X
By: RODALCO : k+ m" T  D3 I- `0 m% l
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Content: 6 l8 \& g) T$ r) 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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$ s/ G0 \( R: k+ K9 _3 L- n0 h2 MI 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.* K+ s$ E: k; f. C; `1 G
This will help all Sony R2R users in the near future as well as our machines age over time.
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4 ]! s2 U* R% K# }+ w7 fKind regards, Raymond
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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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9 u: g$ e0 p0 L$ C! S零件追蹤
( _1 B+ M  t$ _http://www.globalsemi.com/productdetails.aspx?itemno=875032100. N$ |9 p1 }0 o9 ]
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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