review33.com: 影音天地: Marantz 10B

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[#30] Marantz 10B http://db.audioasylum.com/mhtml/m.html?forum=vintage&n=151539&highlight=mr71&search_url=%2Fcgi%2Fsearch.mpl%3Fforum%3Dvintage%26searchtext%3Dmr71 剛睇到有鬼佬用led + photo resistor. 我都有咁想。		thomasc2 正式會員 58.xxx.xxx.8	2017-05-14 11:11

[#29] Marantz 10B
#28. 應該不成的。舊式的都是tungsten lamp (或neon bulb)跟CDS的組合，現在的是LED跟photo transistor(或photo diode的組合)。規格相差太遠，無互換性。

羅密歐

正式會員
202.xxx.xxx.10

2017-05-14 11:01

[#28] Marantz 10B
Thanks, wwt. 部機多年前比師父調，師父話果粒野壞左，佢拆左換了一枝固定電阻去提供U7的偏壓，結果是永遠都是stereo mode. 粒野見我都未見過，最近想試下可唔可以用時下幾毫子一粒的光偶合代替，但又苦無原裝果粒的spec.

最後修改時間: 2017-05-14 11:07:36

thomasc2

正式會員
58.xxx.xxx.8

2017-05-14 10:51

[#27] Marantz 10B
MR 71 opto-coupler

wwt

正式會員
1.xxx.xxx.50

2017-05-14 10:15

[#26] Marantz 10B
唔知McIntosh MR71 是否也是用它？

Thomasc2

正式會員
58.xxx.xxx.8

2017-05-14 09:27

[#25] Marantz 10B
所以我也買了一套給我的10B, 以備將來之用！

invincible

正式會員
113.xxx.xxx.4

2017-05-13 22:39

[#24] Marantz 10B
Yes, 就是這個！

invincible

正式會員
113.xxx.xxx.4

2017-05-13 22:32

[#23] Marantz 10B

可以在Ebay 买

wwt

正式會員
1.xxx.xxx.50

2017-05-13 20:47

[#22] Marantz 10B
那個零件叫 Optocoupler.

invincible

正式會員
113.xxx.xxx.4

2017-05-13 17:51

[#21] Marantz 10B
那三個光敏電阻外形是銀色柱形東西，像我們平常的大水塘一樣！盡量找一下那個零件吧！

invincible

正式會員
124.xxx.xxx.92

2017-05-13 14:41

[#20] Marantz 10B
我上一部10B 都出現過這樣問題，後來發現是因為機內的三個"光敏電阻" 問題，他的原理是當接收到stero 時，那個光敏電阻內的小燈泡即亮起來，然後那些光敏感的電阻接收到光之後，電阻值改變，從而控制立體聲，那個零件基本上是沒有生産了，但幾年前日本有復刻版零件出售，總之，沒有這個零件，是沒辦法修理的，後來我也只好另外再買了一部10B。

invincible

正式會員
124.xxx.xxx.92

2017-05-13 14:34

[#19] Marantz 10B
Any repair service for Marantz 10b ? Mine is changed to 220V

FLAI

正式會員
202.xxx.xxx.218

2017-05-13 09:59

[#18] Marantz 10B
整tuner,ModernClassic可靠!!!!

cat369

正式會員
14.xxx.xxx.72

2012-12-27 20:36

[#17] Marantz 10B
Hello 41450686,

I think no, it was connected to the plug of room tv antenna. I think the 裝修師父 just jam from the 客廳 one.

Is the antenna splitter can help in my case? Where to buy? Is it one end to the tv and one end to my 10B?

Thank you!

vincent4315

正式會員
42.xxx.xxx.75

2012-12-26 19:34

[#16] Marantz 10B
Do you have an antenna splitter?

41450686

正式會員
210.xxx.xxx.19

2012-12-26 13:58

[#15] Marantz 10B
Hello Ching,

I have an 10B too, and I was trying to connect to the public antenna. The signal is fine BUT....after that my TV have problem （screen freeze) and some 高清 channels disappeared.

Anyone can help to solve please?

vincent4315

正式會員
42.xxx.xxx.75

2012-12-25 21:32

[#14] Marantz 10B
Just received another 10B last weekend for check up/repair. This one has been modified to operate at 220v.

ModernClassic

正式會員
112.xxx.xxx.250

2011-07-04 07:11

[#13] Marantz 10B
I know how to repair but I am not do this as my job. I have a 10B too. You can use another multiplex decoder to confirm the problem is in the turner section or in the multiplex section first.

Mostly if the tube is not too old re-alignment may help. It is due to the value of the carbon resistor may change due to ages. I can say that 90% of tube turner and tube multiplex decoder in ebay need to re-alignment.

電台飄移的問題，結果搞了一輪仍是要寄往美國修理好.
電台飄移 mostly due to the tube is too weak in the RF amp and Local oscillator. Replace the tube first and re-alignment. You can find a screw to adjust the variable cap to fix this problem.

Don't try to repair or adjust by youself if you don't know. I am the one to mis-align a tube turner. As a result, I buy many books, Oscilliscope, Signal Generator, Stereo Generator... I have a lab at my home now.

最後修改時間: 2011-07-04 02:47:50

41450686

正式會員
119.xxx.xxx.222

2011-07-04 02:40

[#12] Marantz 10B

德發「偉利曾」。整tuner佢最出名x

好唔就見人見智

cokecokecoke

正式會員
112.xxx.xxx.224

2011-07-04 01:28

[#11] Marantz 10B
No Stereo is due to malfuntion of the " Opto-coupler" - 3 silver cylinders; not likely to be repaired but replace them directly.

invincible

正式會員
113.xxx.xxx.122

2011-07-04 00:37

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