LG 26LE6500 (CHASSIS:LL01A) Service Manual ▷ View online
8. All Source Audio
Check the TV Speaker Menu
(Menu -> Sound -> TV Speaker)
On
ok
ok
Check Output Signal P7800
1, 2, 3, 4 pin.
Replace Audio AMP IC(IC501)
ok
No
Check Connector & P7800
Replace connector
if found to be damaged.
if found to be damaged.
ok
No
Check speaker resistance
and connector damage.
Replace speaker.
ok
No
Off
Toggle the Menu
Check AMP IC(IC7801) Power
*24V, 3.3V, 1.8V.
No
Check Regulator IC7800(+1.8V_AMP)
Check Mstar I2S Output
R7801, R7802, R7803
No
Check signal line. Or replace Mstar(IC101)
Check Mstar AUDIO_MASTER_CLK
TP7800 or IC7801 PIN 7
No
Replace Mstar(IC101) or Main Board.
ok
Check AMP I2C Line
R7804, R7805
No
Check signal line. Or replace Mstar(IC101)
9. Digital TV Audio
Check RF Cable & Signal
Follow procedure
‘8. All source audio’
trouble shooting guide.
ok
Check Tuner 3.3V Power
L5003
Replace L5003
Check Tuner 1.2V Power
IC5001 2 pin : 1.2V
Check IF_P/N Signal
TU5001 17/18 Pin
Replace IC5001.
Check Tuner 5V Power
L5002
Check IC401
ok
ok
ok
ok
No
No
No
No
Replace IC401
No
Bad Tuner. Replace Tuner.
Replace L5002
ok
10. Analog TV Audio
Check RF Cable & Signal
Follow procedure
‘8. All source audio’
trouble shooting guide.
ok
Check Tuner 3.3V Power
L5003
Replace L5003
Check Tuner 1.2V Power
IC5001 2 pin : 1.2V
Check CVBS Signal
TU5001 11 Pin
Replace IC5001.
Check Tuner 5V Power
L5002
Check IC401
ok
ok
ok
ok
No
No
No
No
Replace IC7511
No
Bad Tuner. Replace Tuner.
Replace L5002
ok
12. Component Audio
Check Component Cable
for damage or open conductor.
Check JK9800 & Signal Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open conductor
Check JK9800
& Signal Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Follow procedure
‘8. All source audio’
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open conductor
Check JK1104 & Signal Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.