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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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8 C, {9 C" m: R' r8 F0 t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。
" z) ~- J6 t. d" Q控制转速的IC, SONY CX-032各脚电压值如图
1 [4 S0 j7 |* f  s 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!
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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 # l6 M7 N; i$ u+ d
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有人走過相同的路了
6 e5 u+ D/ m( V" M& _; I摘自   Obsolete Media - Forum1 @* h( W; K6 T6 r' v
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025 , B' q6 N6 W! ~
http://obsoletemedia.com/geeklog/forum/print.php?id=2025& q; J" M& B- P) A, @
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9 k' c, n- M' r9 E3 w  V- a4 {2 x( cChip CX-032B for Sony TC-558
; o) v+ @9 p: C0 i$ R& A0 g2 YPosted on: June 16 2008 @ 01:43 PM
. v0 I1 Z' j3 w* f+ l% F) FBy: RODALCO ( a6 x9 {# E8 k$ R' `# |

. H; @! a9 g+ O& Z. T3 S, X7 @3 rContent: ' O  G2 `4 q& y2 E% N6 g

( L5 x! J6 I* Y( r' B& Z. UHi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.% @% p5 }+ Y$ F3 n5 y( @/ R- b

( j# J7 a, C( z- p) s9 a* tLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.; ^+ |9 U( I2 U; D* w
A rare Sony turntable TTS 400 has the same chip used as well.
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& C/ d5 }4 C0 j2 yThe supllier on this link has the IC listed.
. ^* Y$ v7 ~7 n6 M3 ohttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)2 v# }9 t8 e: `# F5 u* W: {

& L5 O: Q( X3 \7 bThe 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 F4 z, p* C8 p0 DGru�, Raymond
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2 q# w( i# V3 e1 cChip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
$ ]: f9 F) C8 H* n* [, U; dBy: RODALCO 8 v& R# u4 X7 w. s% K
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Content: 6 ]6 M1 t5 p0 d; l% C
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?6 v  w4 Y" ~+ |
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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.7 {! m, P( v: h3 m- s" x
This will help all Sony R2R users in the near future as well as our machines age over time.
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' x- w- p1 _2 C) h  N3 x! E, zKind regards, Raymond$ I; y1 y/ z* w6 x& T3 z' J

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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: m# i) \0 V5 i6 I& _% B
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零件追蹤: \  C$ F7 Z- _1 O0 b, c
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
6 F; Q4 w1 q% T) G: N" i39.99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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