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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 9 m7 s/ [- X+ [" g- x  G% O3 o

# ?2 m' L3 x1 `" A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。, p) G+ H8 a! ^$ f! ~3 E* k; a+ R
控制转速的IC, SONY CX-032各脚电压值如图
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! Y. C: {7 z# F, C, Q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 ' F7 z+ E, q3 i" T1 g9 s

/ H5 |: `# w$ a有人走過相同的路了0 @  y. G" ~" R
摘自   Obsolete Media - Forum
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+ A; Y6 K2 S0 M& y* Chttp://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
* i3 O1 U8 n' L! j* s3 ~http://obsoletemedia.com/geeklog/forum/print.php?id=2025$ A: I& C! k3 h8 h

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8 ]" m% B5 W( G; VChip CX-032B for Sony TC-558
+ P+ w4 I' C* R% l; ~Posted on: June 16 2008 @ 01:43 PM
  G" w  G0 a7 l0 Q- sBy: RODALCO " [  z$ R. j5 k; D8 g9 U
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Content: # q! r1 }6 x, V$ L4 e4 `

1 n8 _& `4 ?8 [: W* X5 ?Hi, did a quick Google and found this link on a German Forum regarding the CX-032B chip.
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$ M4 Y" Y( S" b% I4 v1 XLuckily I can read German and donor machines could also be a Sony TC 440 and Sony TC 580 which have the same chip.
* M, G0 M; [; ~* x( xA rare Sony turntable TTS 400 has the same chip used as well.& j1 b0 y* y2 }4 O. a

0 Y/ ]9 }: a1 ?The supllier on this link has the IC listed.3 @6 i; d$ O- k2 e" E+ L
http://www.prelcoparts.com/sony.pdf                                             (沒有相關資料)
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' P6 L, a" x/ i7 {9 QThe German Bandmaschinen Forum thread.
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http://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效)4 x4 _) c4 w" M: Y$ r
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Gru�, Raymond% L# S& e7 F; N- [3 {* Z( q. J
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
5 F' \8 D! s  ^, EBy: RODALCO
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! J" V. ?% o. V2 K3 k3 W* kContent:
# {7 H& J/ `7 r$ n4 `<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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7 ^: e4 |& Y* J+ bI 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.
' D. V! y  H5 |* \6 _This will help all Sony R2R users in the near future as well as our machines age over time.
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1 {6 D' H; [7 a. _6 X. Y0 m5 k1 }Kind regards, Raymond
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' z0 l: `4 S' w+ w& F有沒有用零件做出等效的主軸控制還要進一步追蹤9 t/ g9 B& r! v9 k8 _

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零件追蹤5 g0 N( b. d% B! ]! `$ G
http://www.globalsemi.com/productdetails.aspx?itemno=875032100
- f! q( E- {4 r3 }3 k39.99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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