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A sound card (also known as an audio card) is an internal Computer expansion card that facilitates economical input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces that use software to generate sound, as opposed to using hardware inside the PC. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education and entertainment (games) and video projection.
Sound functionality can also be integrated onto the motherboard, using components similar to plug-in cards. The best plug-in cards, which use better and more expensive components, can achieve higher quality than integrated sound. The integrated sound system is often still referred to as a "sound card". Sound processing hardware is also present on modern video cards with HDMI to output sound along with the video using that connector; previously they used a SPDIF connection to the motherboard or sound card.
If the stereo jack works, then there is no problem with the sound card or its drivers. Your speakers have played their last, most likely some internal wiring broken as speakers themselves rarely just quit.
Steps to be followed:
1. check whether audio driver is installed properly ? if not install audio driver & check 2. check audio setting in control panel & confirm 3. connect external speaker in laptop and check whether sound is coming? if sound is coming then ur laptop internal speaker need replacement 4. if there is no sound in external speaker then need to check ur motherboard or sound card. All the best.
If the Internal speakers are working fine that means your Sound card and settings are fine. Just check the Cable, pin and the port you are plugging it into. Or else try connecting a headset on the sound card port to diagnose clearly.
if u mean to say u plugged in an external mic then internal's not workin, then its a simple sound setting game..
Look when u plug in an external mic, the internal one freezes...
Now go to Control Panel, Select Sounds & Audio Devices Now select Audio As u select Audio, U'll see a mic icon.. Expand the tab & select ur internal mic.. Now apply it & click ok.. Now check whether ur internal mic is working or not.. I guess it wil work..
If u like my post, please rate me up... I really need some good ratings... Thanks !!!
If the sound is working through another device then it seems that the internal speakers are bad. Because if the sound card was bad you wouldn't have any sound whatsoever, same goes for drivers. Probably just some bad speakers. If you have some other external speakers try plugging them into the headphone port and see if that helps.
It sounds like the audio jack itself has internal damage. Depending on how it is mounted on your laptop case, or possibly on an internal circuit board inside the laptop; it might be possible to repair the jack or replace with a new 1/8" audio jack. Some soldering skill may be required after disassembling the laptop and getting access to the jack.
Your problem can be one of several. 1/ you have lost / deleted / corrupted the voices on your SD card. if there are no voices then you won't get any nav instructions. 2/ Your speaker has stopped working , if faulty it will need replacement. ( not unknown and common on early tomtoms ) . On other tomtom models that have an external speaker socket the socket becomes faulty. This socket has a switch that switches the internal speaker OFF when an external speaker is plugged in. If this switch is stuck OPEN then that connection to the internal speaker is lost. However , the Tomtom drums sound is connected to the speaker via a different route so doesnt get switched off by this socket switch so the drums can still be heard.
It is possible that:
1. You may have recently installed an add-on/external device such as a multimedia keyboard which changed the audio output from internal to external;
2. The laptop's internal speaker might have gone dead (highly unlikely but still a possibility) - try plugging in external speakers or a headset and check;
3. Most if not all laptops uses a female stereo babyphone jack to connect to external speakers. This jack has a built-in switch that cuts off internal speaker if an external is plug in. If you are using eternal or headset from time to time, it is possible that the switch might have locked to external and does not switch back to the internal;
4. You may have a hardware issue specifically the sound card/chipset. This of course would require an inshop repair which may be better off with an authorized service center. At worst is have the entire laptop replace if it is confirmed to be a hardware issue.
Hope this be of some help/idea. Post back how things are or should you need additional information.
Good luck and kind regards.