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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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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。4 i7 A: n8 W  a3 V
控制转速的IC, SONY CX-032各脚电压值如图
- o3 d" ^' }7 ?' H% K 22-1.jpg
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1 M0 \: n" k3 B是IC坏了还是其它问题?如坏了,求着IC一块。谢谢!) M6 y9 d! n5 y/ c# k
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- k7 p+ E1 y% `4 M  g" w
摘自   Obsolete Media - Forum
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7 m4 v0 {4 `" T5 U# t- khttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
6 Z' P) S9 B3 r# Y7 J$ v5 Bhttp://obsoletemedia.com/geeklog/forum/print.php?id=2025# d1 Q% T% g' k3 U3 ~

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$ o% C. m3 M: Z: K9 _5 z" WChip CX-032B for Sony TC-558) e- S3 B5 D3 u) |& i
Posted on: June 16 2008 @ 01:43 PM 5 [7 H$ c  g, d& M" q) u7 {
By: RODALCO 8 S! e7 u5 S$ I8 _0 j9 m( \

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2 e* H+ A, M9 x! h# mHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.! R; c) A" [1 t5 ]; [
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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.; y" ?8 R% B2 M) x; U; Z4 K
A 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.7 f$ L# `) D+ f  u2 a* }, z: b
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)5 y, g% {* {5 }7 U

# m7 Q3 N+ D; b4 D! 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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9 @! g: d& r0 M; _/ T' i9 }, iGru�, Raymond
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
# F: L  z* D0 f- {: h1 x+ yBy: RODALCO ! L3 g( I+ b# S
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Content:
& s- K( G5 \4 ?$ r; q, j<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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. z1 g1 V8 E( B, \6 xI 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., r( w4 {$ m% p
This will help all Sony R2R users in the near future as well as our machines age over time.4 B1 w2 R, }, |7 ]* N. [

& B& r0 V) m; O' RKind regards, Raymond8 O6 ~) k$ b- L# {9 r$ _
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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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零件追蹤
% {0 y4 k2 c4 U3 N: _! [0 Uhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100- t! F: t' d2 _. E7 i4 ]4 ?9 P
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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