LG 60PM670T User Manual page 19

• When the TV is turned on after inserting a CI Module, you may not have any
sound output. The Smart Card may not be compatible with the CI module.
• When using a CAM(Conditional Access Module), please make sure it
meets fully the requirements of either DVB-CI or CI plus.
• An abnormal process of CAM(Conditional Access Module) may cause a bad
picture.