Samsung LE32B53 SERIES Service Manual page 40

4. Troubleshooting
PC_S L/S R_IN
SIDE_AV_SL/SR_IN
COMP1_S R/S L_IN
S C1_S R/S L_IN
MAINBOARD(B)
S PEAKER_OUT
SOUND AMP
MAINBOARD(T)
4-23