-55-TroubleshootingNo SoundCheck IC5001 and peripheral circuit.Check 5V_AUDIO, 9V power supply.check if the audio sig-nal is observed at pins10 and 21 of Ic5001.Check audio output circuit.Check speaker, connection of the terminal “K8F”YesNoCheck following steps.Check IC5031, 5V_AUDIO and peripheral circuit.Check the Mute signal at pin 1 of IC5031. The Mute signal is output frompin 9 of IC 301. The OUT_DET signal is sent from Audio Outterminal.Mute-On: H at pin 347 of IC301, L at pin1 of IC5031check if the audio sig-nal is observed at pins 5and 8 of Ic5031.YesNo
