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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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, w+ p  j4 d) v- s5 C* d; {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。
# w% b2 E# n4 p% N" \0 R! O( }$ O控制转速的IC, SONY CX-032各脚电压值如图( ^( \, @. v3 U
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!4 H9 b4 t$ u. a7 T' W% g4 a7 K$ \" s
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 ) M9 e! h) k' l4 Q+ z) u

% m# k' M' N) b# a+ r% y* ?3 g有人走過相同的路了( I) S+ N4 A7 H" F2 _
摘自   Obsolete Media - Forum
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; M! X( x! t- ]2 T- n+ }http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
+ h6 ?4 `: w& F+ G! khttp://obsoletemedia.com/geeklog/forum/print.php?id=2025$ E& L; V; L2 G6 P7 _1 _6 e

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8 x  n8 |2 K5 |. ]* VChip CX-032B for Sony TC-558( ~& [$ [% @2 E: X4 E4 i
Posted on: June 16 2008 @ 01:43 PM
8 @% X6 ]( k; P, z6 k/ r6 X: |By: RODALCO
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Content:
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. G" |& @8 F/ jHi, 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.8 U% E# Z" W$ m9 \
A rare Sony turntable TTS 400 has the same chip used as well.
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6 U- j; y) P# c* a. A% AThe supllier on this link has the IC listed.
' w- {8 Q/ h! n3 xhttp://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)% c+ c- Y, d$ ~; E$ M1 n. D
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Gru�, Raymond
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, @: u& J9 f; M& ?* y+ vChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ) L. x; W! x) Y* p; \& N9 ?
By: RODALCO & @7 Q( N% D" O

8 S2 L3 b$ ?( M8 n5 GContent:
2 z0 Z5 t. z7 v9 }- }0 [) V' D  i<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?9 m# h& _' L6 {! g5 x3 B9 P

: [8 M; v6 t/ r7 YI 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.5 C1 v2 h8 M) N) m
This will help all Sony R2R users in the near future as well as our machines age over time.( ?$ y4 V7 ^, j, ]2 S, ^) h
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Kind regards, Raymond7 p, j& W1 ]9 b. |# q
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* S2 |2 m& i* D; m* [6 U/ z) \  c有沒有用零件做出等效的主軸控制還要進一步追蹤6 b: O- |. v! M$ D4 l' J0 p  M
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零件追蹤$ T6 @" j: W* I' Q: x
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
" E* a9 @! K0 g. d. z39.99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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