-37-7-1-2. When No SoundA. OverviewCheck StartDo images display on screen?Cancel Sound MUTECheck the connection of Jack(LCD and AV device)Check the connection of SpeakerPerhaps IC601 ProblemReplace SUB PCBIC603 & IC604 ProblemReplace Sub PCB1. Check AC connection2. Check Power S/W ON3. Check Main or other PCBsCheck Sound Mute Off?YYYYYYNNNNNNIs the Sound input Jackproperly connected?Is the Speaker connectionCorrectly connected?Check 11th PIN of IC603and IC604?Check Sound output atP601 and PW602?Problem of SPEAKER or Sound Cable.Replace SPEAKER of Sound Cable.