Usually just the stylus assembly has to be changed on a ceramic or moving magnet cartridge. However, if the cartridge is damaged, corroded or one or both channels do not work we have a range of replacement cartridges.
The cartridge does affect the sound quality, so if you have a good turntable and amplifier and speakers (not a ceramic record player), it is worthwhile upgrading the cartridge to something better.
There is also a wide range of phono cartridges on our decibelhifi.com.au site. If in doubt please phone or email for advice.