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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   ]. A/ m4 J8 `* [

: q5 ?1 X: Q' b9 p% o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。) B+ R$ j3 d* r7 c
控制转速的IC, SONY CX-032各脚电压值如图) k& u. e5 M, L/ h  l) t0 z
22-1.jpg
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; W4 \' D5 F3 h' k/ C是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!* p% D! b* K: U0 X4 Y# }
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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! v1 Y+ X7 o9 a) E$ j有人走過相同的路了& t  ?  ]) s+ e6 T; e
摘自   Obsolete Media - Forum
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ; L) O# F; y  Z6 H+ J! ~
http://obsoletemedia.com/geeklog/forum/print.php?id=2025! |$ p2 c( F5 ^  m

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Chip CX-032B for Sony TC-558
- e$ x( A0 C$ q6 r' ePosted on: June 16 2008 @ 01:43 PM & \' r7 n' ^3 r6 V2 c
By: RODALCO   i% J& m0 H+ e

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Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.1 j- c: V( P2 L! W( a! O0 R

2 D5 J; U/ z5 h2 ]Luckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.& d6 y  z( U' j
A rare Sony turntable TTS 400 has the same chip used as well.
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& H5 p1 v, ?3 @" K8 x& a: p8 K: q$ `! tThe supllier on this link has the IC listed.
0 q' ?% M' Z: {3 vhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)& z( `- z2 L0 w+ ~
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The German Bandmaschinen Forum thread.4 a- `& b  I5 x  v
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)
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4 v6 o" l1 ?. K& m  O4 L, YGru�, Raymond
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7 U) U. k  a% ], V1 _* IChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM ( X3 g8 e, D9 m8 l0 _/ x" d
By: RODALCO ) y3 Z8 E3 ^) S1 H- q& `9 ~

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+ w/ m3 }" Y5 K: I, B- P8 h<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?, ^6 Z* f2 Y  N

* ^# C; s' x: h! D+ kI 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 L$ |: R4 ^! X7 @, P/ u
This will help all Sony R2R users in the near future as well as our machines age over time." O( X0 N1 r: c8 ~* l
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Kind regards, Raymond
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' t8 Z# k3 q6 D  _: n; C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
# Q: s' w1 A1 y, b! Q% }# thttp://www.globalsemi.com/productdetails.aspx?itemno=8750321002 ], ?5 F6 [; t2 X  X! s2 V8 Y
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7 q; L, D* |9 U
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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