LG 32LX2D Service Manual - Page 23

Push the POWER ON key Turn OFF the Mute Increase the Volume Correct them No Audio FAIL Is the Set ON? PASS PASS Is Mute ON? FAIL PASS Is Volume level Of the set 0? FAIL FAIL Check the Condition of all Connectors, wafers, I2C In corresponding Signal flow? Replace NSP Replace IC907 PASS Power Error FAIL PASS Check 5V at pin 16 of IC603 FAIL Check the input I2S signal across R632-634 of MSP PASS Check the input HDMI_I2S at pin 1,3,6 and DTV_I2S at pin 2,5,11 of IC603 PASS 2. IDTV/HDMI-Audio - 23 - Check 3.3V supply across L305 and 2.5V at L304 FAIL Power Error FAIL Check 18V supply at pin 55and pin 30 of AMP PASS Replace TAS5122(amp) FAIL Check the PWM output of NSP across R325-328 PASS Check the Amplifier output level At L300-303 FAIL PASS There may be some error in PC input. PASS PASS Check audio output at MSP across R655,656,657 And 605. FAIL Check the SiI9021 or Digital board accordingly. FAIL Replace the MSP Check the supply voltage 8V across L601-602 PASS FAIL Power Error