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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 / c% Z4 D, d" c& Q
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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。% j- q' }5 }6 V% W0 y
控制转速的IC, SONY CX-032各脚电压值如图
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! Q. {$ w* ?3 N# z% r是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!7 s# g. v; I+ a6 b# V5 F; X
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 }3 {" R0 f* i

" ]$ ]; W6 V' Z4 Y2 w  A有人走過相同的路了# A. G" [( n1 u& ~2 d1 `" Q
摘自   Obsolete Media - Forum% Q/ b4 V3 d5 {6 }8 y
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 ) V$ Z1 g4 l  y% [8 }5 F. e
http://obsoletemedia.com/geeklog/forum/print.php?id=2025
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" X$ T: P' X' e! i1 sChip CX-032B for Sony TC-558' \* H% h. b: S- s( r0 H0 @
Posted on: June 16 2008 @ 01:43 PM ' X0 s2 o) Z" [/ \% v
By: RODALCO - t  J1 ^% g: X% O3 k' K; `3 N+ O
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Content: ; \+ \4 A8 t; j! P7 N
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Hi, 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.: D/ D6 \! v, P1 K/ Q
A rare Sony turntable TTS 400 has the same chip used as well.
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( F, ?8 V. [7 a! A3 bThe supllier on this link has the IC listed.
0 g. R/ n  s) u- Ahttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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$ ^  X9 T; A& Z$ _+ t  ?+ }The German Bandmaschinen Forum thread.$ z8 o% O1 W! x! J4 r" P

2 f/ G) S) A' Q1 }1 yhttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)8 F& }- r% P3 A: g( i1 I' \
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Gru�, Raymond3 O2 h& R! w2 [) E0 E+ B% w. X* L
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content:
8 ?. [6 q& e! n/ B: e<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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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.
9 `. ^/ q( z% r. O$ rThis will help all Sony R2R users in the near future as well as our machines age over time.' G$ H6 P3 X( A3 M4 |4 c: ?5 k
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Kind regards, Raymond: s3 I# R$ J0 @9 B0 ?! A' K5 Z

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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$ D$ m3 i5 S# C9 H$ a6 C

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零件追蹤
0 f$ c0 A+ j) z/ mhttp://www.globalsemi.com/productdetails.aspx?itemno=8750321000 U; G2 s: d1 @& |2 b, X& L1 K
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4 g# T. k6 }. N
 楼主| 发表于 2012-1-4 12:59:13 | 显示全部楼层
谢谢!
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