My acer aspire 3680 has. my acer aspire 3680 has a sound problem, the external speakers I use only

Question

my acer aspire 3680 has a sound problem, the external speakers I use only work sometimes , Usually works in the morning but if it is shut down during the day sound is only available from the onboard speaker when the pc is restarted,,,dosnt matter how many times it is rebooted there is never sound from external speakers or headset until it is restarted next day