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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 & F, A/ X, s, r7 j0 V  c  c

5 X. j7 s  F5 f# p( P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。7 H0 V1 T/ x( X: u# F
控制转速的IC, SONY CX-032各脚电压值如图1 |8 s" b4 T4 G8 A# ]
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 6 ?* D7 N! d4 V' l$ U! q; m
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有人走過相同的路了0 Y6 {. J' ?1 _1 q% X: W
摘自   Obsolete Media - Forum& N, [! V: I+ f4 E) N6 ~% A  h
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http://obsoletemedia.com/geeklog/forum/viewtopic.php?showtopic=2025
: A" {6 k! C5 n* f" s8 R7 e/ |* Zhttp://obsoletemedia.com/geeklog/forum/print.php?id=20250 ?; M: p4 }0 M; Q+ o$ V2 y

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Chip CX-032B for Sony TC-558  C6 n3 @( f3 k3 R, _4 r9 w& H- d
Posted on: June 16 2008 @ 01:43 PM
! `1 J# a3 k) A! V" }) A6 J6 DBy: RODALCO 5 U$ _4 W+ X5 p

7 @# ^% m% W* ?, S0 MContent:
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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.5 s2 b; ~, `4 f6 e$ ]2 X+ z
A rare Sony turntable TTS 400 has the same chip used as well.( k- x: m0 C; ?& I4 D  r6 ?; h

( N/ h6 i: P; E- v- `& I6 s$ X: D; e5 {The supllier on this link has the IC listed.
5 p, A9 {7 K5 v, K; J, Xhttp://www.prelcoparts.com/sony.pdf                                             (沒有相關資料). H0 O: D. `# a

3 E( I/ K9 v! e( DThe German Bandmaschinen Forum thread.- X1 }0 [1 A7 v5 v, X/ V5 m& {

! Y8 Q% \' E2 m: phttp://mb.abovenet.de/forum2/showtopic.php?threadid=7232      ( 聯結失效): y- [* N5 L1 a8 K2 n
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Gru�, Raymond8 K( {5 v( x! L" d$ B6 A& v+ ^
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Chip CX-032B for Sony TC-558Posted on: June 17 2008 @ 01:35 PM
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Content: % J5 |4 z/ J$ W  \8 ^
<b>visitorj</b>, can you make a photo of the IC and the board please ? and the schema if you have it?: N! D1 |3 Y3 y! o' Q

( L8 S0 u+ {; e! O8 n) |/ M+ c) fI 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.
! \  Z4 m4 M2 A8 `% L9 VThis will help all Sony R2R users in the near future as well as our machines age over time." d0 d6 y9 \' Q3 g4 ^/ Z" x

# V, U, r8 Q- w5 c  n. w4 sKind regards, Raymond
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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/ l4 t0 d4 D6 y4 v6 z
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8 a" @# {- g7 \9 h零件追蹤
- f  N3 \( X1 _- v0 u& fhttp://www.globalsemi.com/productdetails.aspx?itemno=875032100
0 q$ F  W! z+ N+ H9 r4 A- D9 z* y39.99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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