New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Volume buttons on iMac keyboard dont work when audio jack plugged in


Post Reply New Thread Subscribe

 
Thread Tools
MSH

 
Member Since: Jun 26, 2012
Posts: 3
MSH is on a distinguished road

MSH is offline
Hi all
I recently bought an audio cable (Toslink to Mini Digital Optical SPDIF Audio Cable) to connect from my iMac to my surround sound system. The 3.5mm analog end of the cable goes in to the computer's audio out and the optical/digital end goes into the speaker port. The wire works fine but once i connect this "analog-to-digital" cable, the volume up and down buttons on keyboard dont work. Also the volume icon on the menubar on the top of the screen is shown disabled. Can anyone please suggest me some solution to this situation.

If you need to see what type of wire it is, you can check the wire here.
StarTech.com THINTOSMIN6 Toslink to Mini Digital Optical SPDIF Audio Cable, 6-Feet (Black): Amazon.ca: Electronics

Thanks in advance
Sazzad
QUOTE Thanks
MSH

 
Member Since: Jun 26, 2012
Posts: 3
MSH is on a distinguished road

MSH is offline
Hi all
I recently bought an audio cable (Toslink to Mini Digital Optical SPDIF Audio Cable) to connect from my iMac to my surround sound system. The 3.5mm analog end of the cable goes in to the computer's audio out and the optical/digital end goes into the speaker port. The wire works fine but once i connect this "analog-to-digital" cable, the volume up and down buttons on keyboard dont work. Also the volume icon on the menubar on the top of the screen is shown disabled. Can anyone please suggest me some solution to this situation.

If you need to see what type of wire it is, you can check the wire here.
StarTech.com THINTOSMIN6 Toslink to Mini Digital Optical SPDIF Audio Cable, 6-Feet (Black): Amazon.ca: Electronics

Thanks in advance
Sazzad
QUOTE Thanks
dobby

 
Member Since: Jul 15, 2009
Location: In front of MY MAC OR LINUX BOX
Posts: 211
dobby is an unknown at this point
Mac Specs: Mac Pro Workstation Airport Extreme ATV 2 Ipad

dobby is offline
I might be wrong .
But if I search for that cable on the internet it is standard optical cable .
So once use it from optical out to optical in
Controlling the volume happens on the analog side of the optical in
QUOTE Thanks
MSH

 
Member Since: Jun 26, 2012
Posts: 3
MSH is on a distinguished road

MSH is offline
Thanks Dobby. Although i am not very clear on what you said. the cable is optical for sure. but the two ends are different. the audio out port (not optical port as imac does not have optical port) supports the standard 3.5 mm minijack. the jack at the other end is optical and also goes into an optical port. Its like a cable without having to use a converter between analog and digital ports. But i dont get how that disables my volume option in the computer. once i use the normar RCA cable, the volume option comes back again. Please let me know if i am missing something and is there any way to fix it up.
QUOTE Thanks
mrplow

 
mrplow's Avatar
 
Member Since: Oct 01, 2007
Location: UK
Posts: 6,701
mrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond repute
Mac Specs: 27" iMac i7 (2011) 10.9, iPhone5s, iPad Air, AppleTV2

mrplow is offline
That's because the optical signal you're sending isn't modified by your Mac. It's a fixed, un-amplified digital stream. It's just data. It's down to the receiver to interpret, convert, amplify, output the signal.

External hard disk acquisition addict - but admitting the problem is the first step to a robust backup

Please use the reputation system if you think you've been helped - top right of this post
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 39,031
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

chscag is offline
@MSH

Please do not cross post or double post. Post your question once and to the same forum. Be patient and wait for an answer. Thanks.
QUOTE Thanks
mrplow

 
mrplow's Avatar
 
Member Since: Oct 01, 2007
Location: UK
Posts: 6,701
mrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond reputemrplow has a reputation beyond repute
Mac Specs: 27" iMac i7 (2011) 10.9, iPhone5s, iPad Air, AppleTV2

mrplow is offline
Quote:
Originally Posted by MSH View Post
the audio out port (not optical port as imac does not have optical port) supports the standard 3.5 mm minijack.
Your iMac does have an optical port, your using it. The 3.5mm jack is both stereo analogue and digital optical. It auto switches depending on what you connect to it.

Optical cables can have two different connector types - a 3.5mm jack with a tiny hole in the tip for the optical connection and the small square jack with the two angled corners that you typically find on receivers/amps/cable boxes etc.

Quote:
once i use the normar RCA cable, the volume option comes back again
That's because the analogue out from this cable is analogue and pre-amplified by your Mac - hence you have control over the volume

External hard disk acquisition addict - but admitting the problem is the first step to a robust backup

Please use the reputation system if you think you've been helped - top right of this post
QUOTE Thanks

Post Reply New Thread Subscribe


« iMac dvd/cd drive broken | iMac (Late 2009) RAM question »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Summary of all the Audio Apps available for OSX robduckyworth Music, Audio, and Podcasting 35 08-02-2012 10:52 AM
MacBook touchpad and keyboard don't work DennieMeister Apple Notebooks 9 11-02-2010 04:18 AM
Safari and Facebook Problems MrTissues OS X - Apps and Games 7 02-26-2009 05:01 PM
Is it worth to switch from iMac G4 to iMac G5?? Mainyehc Apple Desktops 12 03-13-2006 06:21 PM
Imac HD not audio recordable volume? dvr music Apple Desktops 0 12-31-2005 04:03 AM

All times are GMT -4. The time now is 02:08 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?