TCL L28B2500-MS306D-LA - Page 27

3、 Abnormal sound：
Y
N
N
Check the mute
function
Abnormal sound
Check all sound
source
Individual sound
signal source
Check the sound signal
link to main IC
Check the peripheral
circuit of main IC,SW
Check the power of
sound IC
Check sound IC
Check wave filter and
speaker？
Y
All manuals and user guides at all-guides.com