LG LAC550H - Troubleshooting Common Issues; Unit Operation and Power Problems; Audio and Subwoofer Issues; Remote and Connectivity Problems

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8. AUDIO PWM(1/2)
FIG 8-1. PWM IC 3.3 V FIG 8-2. PWM IC 1.2 V
23 24
FIG 8-3. BCK
25
FIG 8-4. LRCK
26
24
25
26
23