123Macmini.com
FAQFAQ   SearchSearch   MemberlistMemberlist   GalleryPhoto Gallery   RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Bad audio hum with 17" Studio and Apple ADC-DVI Convert

 
Post new topic   Reply to topic    123Macmini.com - Forums Forum Index -> Mac Accessories
View previous topic :: View next topic  
Author Message
blanchesdad
New Member
New Member


Joined: 08 Sep 2007
Posts: 8

PostPosted: Mon Sep 10, 2007 10:39 am    Post subject: Bad audio hum with 17" Studio and Apple ADC-DVI Convert Reply with quote

Hello, we posted this a couple of days ago in "troubleshooting" and so far there's been no answer, so figured we would try here...if that's not a good thing to do, please let us know.

We just got a 1.5ghz G4 mini, and also bought the official Apple ADC to DVI converter adaptor to hook our 17" Studio flat panel up to the mini.

When the display converter is getting AC power, it causes a horrible audio hum in the mini's sound output. Pull the plug on the ADC-DVI converter box, and the hum goes away.

We've tried plugging the converter into several different outlets on different circuits, and it doesn't help.

Anyone have any ideas of how to get rid of this nasty hum (other than going and spending even more money on a generic VGA flatpanel?)
Back to top
View user's profile Send private message
avservice
Junior Member
Junior Member


Joined: 30 Aug 2007
Posts: 48

PostPosted: Mon Sep 10, 2007 12:43 pm    Post subject: Reply with quote

Two things to try.

1st try lifting the ground into the adc-dvi adapter.By that I mean use a 69 cent ground adapter and I bet the hum goes away.
On my adc-dvi adapter there is a three prong power cable and if yours is the same I bet it is your problem.

2nd- Radio shack sells a Ground lift adapter for the Audio line that is just two transformers inline with cables.Even comes with a Mini adapter for one end just like you will need.
These work very often whenn all else fails.

Good Luck
Ed
Back to top
View user's profile Send private message
blanchesdad
New Member
New Member


Joined: 08 Sep 2007
Posts: 8

PostPosted: Mon Sep 10, 2007 1:08 pm    Post subject: Reply with quote

Thanks for the idea of the cheap ground lifter...hadn't thought of that one. A friend recommended one used by guitar players that costs about sixty bucks (ouch!). Just tried the cheap ground lifter...Unfortunately, it doesn't kill the whole problem...the bad low-frequency hum is gone, but the "top layer" of it, a high-pitched tone, still comes through. I'm guessing it has to do with the light source in the monitor itself.

I've used the RatShack device before in a different situation, and to my ears it messed with the audio a bit.

We'll probably end up saving this Studio for use with the MDD it came with, and get rid of this ADC-DVI adaptor (hopefully for what it cost us) and go buy a generic 17" flatpanel somewhere.

THanks again
Back to top
View user's profile Send private message
valefortia
Veteran Member
Veteran Member


Joined: 03 May 2018
Posts: 14034

PostPosted: Mon May 07, 2018 12:40 am    Post subject: Reply with quote

if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525if3525
if3525
Back to top
View user's profile Send private message
valefortia
Veteran Member
Veteran Member


Joined: 03 May 2018
Posts: 14034

PostPosted: Sun Sep 09, 2018 2:49 am    Post subject: Reply with quote

audiobookkeeper.rucottagenet.rueyesvision.rueyesvisions.comkinozones.rulaserlens.rumedinfobooks.rump3lists.ruspicetrade.ruspysale.rustungun.rulargeheart.ru
lasercalibration.rulaserpulse.rulaterevent.rulatrinesergeant.rulayabout.ruleadcoating.ruleadingfirm.rulearningcurve.ruleaveword.rumachinesensible.rumagneticequator.rumagnetotelluricfield.ru
mailinghouse.rumajorconcern.rumammasdarling.rumanagerialstaff.rumanipulatinghand.rumanualchoke.runameresolution.runaphtheneseries.runarrowmouthed.runationalcensus.runaturalfunctor.runavelseed.ru
neatplaster.runecroticcaries.runegativefibration.runeighbouringrights.ruobjectmodule.ruobservationballoon.ruobstructivepatent.ruoceanmining.ruoctupolephonon.ruofflinesystem.ruoffsetholder.ruolibanumresinoid.ru
onesticket.rupackedspheres.rupagingterminal.rupalatinebones.rupalmberry.rupapercoating.ruparaconvexgroup.ruparasolmonoplane.ruparkingbrake.rupartfamily.rupartialmajorant.ruquadrupleworm.ru
qualitybooster.ruquasimoney.ruquenchedspark.ruquodrecuperet.rurabbetledge.ruradialchaser.ruradiationestimator.rurailwaybridge.rurandomcoloration.rurapidgrowth.rurattlesnakemaster.rureachthroughregion.ru
readingmagnifier.rurearchain.rurecessioncone.rurecordedassignment.rurectifiersubstation.ruredemptionvalue.rureducingflange.rureferenceantigen.ruregeneratedprotein.rureinvestmentplan.rusafedrilling.rusagprofile.ru
salestypelease.rusamplinginterval.rusatellitehydrology.ruscarcecommodity.ruscrapermat.ruscrewingunit.ruseawaterpump.rusecondaryblock.rusecularclergy.ruseismicefficiency.ruselectivediffuser.rusemiasphalticflux.ru
semifinishmachining.rutacticaldiameter.rutailstockcenter.rutamecurve.rutapecorrection.rutappingchuck.rutaskreasoning.rutechnicalgrade.rutelangiectaticlipoma.rutelescopicdamper.rutemperateclimate.rutemperedmeasure.ru
tenementbuilding.ruultramaficrock.ruultraviolettesting.rujobstress.rujogformation.rujointcapsule.rujointsealingmaterial.rujournallubricator.rujuicecatcher.rujunctionofchannels.rujusticiablehomicide.rujuxtapositiontwin.ru
kaposidisease.rukeepagoodoffing.rukeepsmthinhand.rukentishglory.rukerbweight.rukerrrotation.rukeymanassurance.rukeyserum.rukickplate.rukillthefattedcalf.rukilowattsecond.rukingweakfish.ru
kleinbottle.rukneejoint.ruknifesethouse.ruknockonatom.ruknowledgestate.rukondoferromagnet.rulabeledgraph.rulaborracket.rulabourearnings.rulabourleasing.rulaburnumtree.rulacingcourse.ru
lacrimalpoint.rulactogenicfactor.rulacunarycoefficient.ruladletreatediron.rulaggingload.rulaissezaller.rulambdatransition.rulaminatedmaterial.rulammasshoot.rulamphouse.rulancecorporal.rulancingdie.ru
landingdoor.rulandmarksensor.rulandreform.rulanduseratio.rulanguagelaboratory.rufactoringfee.rufilmzones.rugadwall.rugaffertape.rugageboard.rugagrule.rugallduct.ru
galvanometric.rugangforeman.rugangwayplatform.rugarbagechute.rugardeningleave.rugascautery.rugashbucket.rugasreturn.rugatedsweep.rugaugemodel.rugaussianfilter.rugearpitchdiameter.ru
geartreating.rugeneralizedanalysis.rugeneralprovisions.rugeophysicalprobe.rugeriatricnurse.rugetintoaflap.rugetthebounce.ruhabeascorpus.ruhabituate.ruhackedbolt.ruhackworker.ruhadronicannihilation.ru
haemagglutinin.ruhailsquall.ruhairysphere.ruhalforderfringe.ruhalfsiblings.ruhallofresidence.ruhaltstate.ruhandcoding.ruhandportedhead.ruhandradar.ruhandsfreetelephone.ruhangonpart.ru
haphazardwinding.ruhardalloyteeth.ruhardasiron.ruhardenedconcrete.ruharmonicinteraction.ruhartlaubgoose.ruhatchholddown.ruhaveafinetime.ruhazardousatmosphere.ruheadregulator.ruheartofgold.ruheatageingresistance.ru
heatinggas.ruheavydutymetalcutting.rujacketedwall.rujapanesecedar.rujibtypecrane.rujobabandonment.ru
Back to top
View user's profile Send private message
valefortia
Veteran Member
Veteran Member


Joined: 03 May 2018
Posts: 14034

PostPosted: Fri Oct 12, 2018 5:53 am    Post subject: Reply with quote

kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
kdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkdkd
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    123Macmini.com - Forums Forum Index -> Mac Accessories All times are GMT - 5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Shop Amazon:  Mac Mini  |  iMac  |   Mac Pro  |  MacBook Air   |  MacBook Pro   |  AirPort Extreme   |  Time Capsule



123Macmini.com is an independent publication and has not been authorized, sponsored, or approved by Apple Computer, Inc.
All logos and trademarks in this site are property of their respective owners.
Copyright © 123Macmini.com. All Rights Reserved.