Read LG 32LT360C-TA / 32LT36WC-TA (CHASSIS:LB2AC) Service Manual online
- 17 -
7. Audio of All iput
Check the speaker menu
(menu - > sound - > TV speaker)
Check the voltage of AMP IC(IC501)
24V, 3.3V
Check the Mstar Audio_Master_CLK signal
R148
Check the AMP I2C Line
R140, R141
Check the Mstar I2S output
IC501 9, 10, 11pin
Exchange the Mstar(IC101)
Or Main board
Check the I2C signal or
Exchange the Mstar(IC101)
Check the I2C signal or
Exchange the Mstar(IC101)
No
No
No
Yes
Yes
Yes
Yes
Check the Audio output signal
IC501 1, 2, 3, 4pin
Exchange the Audio AMP
IC501
No
Yes
Check the connector P501
Exchange the connector If
the connector is defect
No
Yes
Check the Speaker resistor or connector
Exchange the speaker
No
Yes
Menu toggle
No
Exchange the AMP IC or
Main board
No
8. TV Audio
Check the RF cable of RF signal
Check the voltage of Tuner 3.3V : L3703
Check the voltage of Tuner 1.8V
IC3703 2pin : 1.8V
Check the IF_P/N signal TU3700 10/11pin
Implement the “8. Audio of all input”
Of Malfunction guide
Exchange the L3703
Exchange the Tuner
No
No
Yes
Yes
Yes
Yes
Menu toggle
No
Exchange the L3703
No
Click on the first or last page to see other 32LT360C-TA / 32LT36WC-TA (CHASSIS:LB2AC) service manuals if exist.