Read LG 42PB4DTH-UB / CHASIS / PA72A Service Manual online
TUNER(TOP)
SIDE A/V(TOP)
CONTROL(TOP)
PRE-AMP(TOP)
PRE-AMP(BOTTOM)
CONTROL(BOTTOM)
SIDE A/V(BOTTOM)
TUNER(BOTTOM)
DIGITAL(TOP)
DIGITAL(BOTTOM)
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