LG 60LN54XX / 60LN5400 / 60LN5420 / 60LN542Y (CHASSIS:LB31F / LB36B) Service Manual ▷ View online
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7. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode No. 872 , pattern No.83
(1) Please input 3D test pattern like below.
(2) When 3D OSD appear automatically, then select OK key.
(3) Don't wear a 3D Glasses, check the picture like below.
8. EYE-Q function check
Step1) Turn on TV
Step 2) Press EYE key of Adj. R/C.
Step 3) Cover the Eye Q sensor on the front of the using your
hand and wait for 6 seconds.
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data(Sensor data, Back light)”. If after 6 seconds, R/
G/ B value is not lower than 10, replace Eye Q sensor
Step 5) Remove your hand from the Eye Q sensor and wait
for 6 seconds.
Step 6) Confirm that “ok” pop up. If change is not seen, replace
Eye Q sensor.
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TROUBLESHOOTING
1. Power-up boot check
Check stand - by Voltage.
P401 3, 5pin : +3.5V_ST
Check 18pin Power connector
Main B/D 3.5V Line
Short Check
Check X201 clock
24 MHz
Replace X201
Check P401 PWR_ON.
1pin : 3.3V
Replace Mstar(IC101) or Main board
Check Multi Voltage
P401 9, 10pin : 24V
/ 13, 14, 15pin:12V
Replace Power Board
Check IC402/3/7 Output Voltage
IC402 : 2.5V
IC403 : 1.15V
IC407 : 1.5V
Q403 : 3.3V
Replace IC402, IC403, IC407, Q403
Re- download software.
Check stand - by Voltage
L404, L408 : +3.5V
Replace L404, L408
Check LVDS Power Voltage
Q409 : 12V
Replace Q409
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board
ok
ok
ok
ok
ok
ok
ok
No
No
ok
Replace Power board.
ok
No
No
No
No
No
No
No
Check DRV ON Control
P403 2 pin : High
Check Power Board
Change Module
ok
ok
No
Check URSA5 LVDS Output
Replace URSA5(IC6101) or Main Board.
ok
No
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2. Digital/Analog TV Video
3. AV Video
Check RF Cable & Signal
Check Tuner 3.3V Power
L3703
Replace L3703
Check Tuner 1.8V Power
IC3703 2 pin : 1.8V
Check IF_P/N Signal
TU3700 10/11 Pin
Replace IC3703
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
ok
ok
ok
No
No
No
No
Bad Tuner. Replace Tuner.
Check URSA5 LVDS Output
Replace URSA5(IC6101) or Main Board.
ok
No
Check input signal format.
Is it supported?
Check AV Cable for damage
for damage or open conductor
Check JK1702, CVBS Signal Line
R1722
ok
ok
ok
No
Replace Jack
ok
Check CVBS_DET Signal
Replace R1713
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
No
Check URSA5 LVDS Output
Replace URSA5(IC6101) or Main Board.
ok
No
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4. Component Video
5. HDMI Video
Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK1702
Y/PB/PR signal Line
ok
ok
ok
No
Replace Jack
Check COMP_DET Signal
Replace R1712 or R1713
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Check URSA5 LVDS Output
Replace URSA5(IC6101) or Main Board.
ok
No
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
Check EDID
R832, R833, R834, R835 I2C Signal
Check JK801, JK803
ok
ok
ok
No
No
Replace the defective IC or re-download EDID data
ok
Replace Jack
Check HDMI Signal
Check other set
If no problem, check signal line
ok
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Replace Main Board
No
Check HDMI_DET (HPD)
No
Replace R803, R801, R826, R807, R817, Q801, R819, R818, R830
Check URSA5 LVDS Output
Replace URSA5(IC6101) or Main Board.
ok
No
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