歐洲 int Amp駁日本前級出 noise 一問

edlsang

smokeyduck 發表於 2016-1-12 09:49
yes i had but not jap with euro, it was my canadian av-amp with british pre/power amp.

after tried  ...

咁ching 認為第一步該先做乜先？
再如何 step by step 揾元兇？！

smokeyduck

edlsang 發表於 2016-1-12 10:19
咁ching 認為第一步該先做乜先？
再如何 step by step 揾元兇？！

i can only share with you what i have done.

i tried disconnecting one by one, sub, bdp, nowtv, tv aerial, tv, cdp, ps3, wii, turntable, left power amp, right power amp, centre power amp, surrounds power amp.  by only disconnecting the sub helped a very little bit.

after i received the "suggestion", with all connected as before but just secure an end of a thin cable to the av-amp chassis/casing and the other side to a socket plug's earth point, the "wee" noise reduced dramatically.  i can still hear the "wee" noise but only within less than 2~3 inches from the speaker unit (left/right).

from my experience, if i have another setup which have the same problem then i will try "CONNECTING" a ground/earth to the av-amp or which ever hasn't got the ground.

saw so many C-Hing suggest to disconnect the ground from av-amp, but what if the av-amp hasn't got the ground/earth?

actually, the 24th floor central (where i bought my av-amp) didn't suggest much about solving the problem but find out which one device is the problem.  found the problem is one question but solving is another and is far harder from my point of view.

edlsang

仲有無 ching 有意見比比小弟......

smokeyduck

edlsang 發表於 2016-1-12 17:11
仲有無 ching 有意見比比小弟......

oh, i forgot one more thing.  "the basement" said they used to sell an adapter (rca male/female) which runs between 2 devices which can eliminate the noise.  you may pay them a visit to see whether they still stock it.

by the way did you try giving the av-amp a ground?

edlsang

smokeyduck 發表於 2016-1-13 09:34
oh, i forgot one more thing.  "the basement" said they used to sell an adapter (rca male/female) w ...

其實琴晩都發現了問題所在原來是部 phono RCA 發出雜訊。

而家唯有聽先插，吾聽就抆左佢 ！

edison133

edlsang 發表於 2016-1-13 10:10
其實琴晩都發現了問題所在原來是部 phono RCA 發出雜訊。

而家唯有聽先插，吾聽就抆左佢 ！ ...

找到問題真係好! {:9_425:}

edlsang

edison133 發表於 2016-1-13 10:28
找到問題真係好!

全靠你的机智！

knul

edlsang 發表於 2016-1-12 17:11
仲有無 ching 有意見比比小弟......

我個CASE

http://post76.hk/forum.php?mod=v ... &extra=page%3D4


SETUP 同師兄唔同
最後用LPS 駁NAS 解決左

edlsang

knul 發表於 2016-1-14 17:28
我個CASE

http://post76.hk/forum.php?mod=viewthread&tid=223749&extra=page%3D4

Tks Ching 意見 。