LG 55LF6000 - Advanced Picture Settings; Advanced Picture Controls; Additional Picture Options; Energy Saving Feature

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LGE Internal Use Only
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TROUBLE SHOOTING
1. Power-up boot check
Check stand-by Voltage.
L413 : +3.5V_ST
Main B/D 3.5V Line
Short Check
Check X101 clock
24 MHz
Replace X101
Check P401 PWR_ON
1pin : 3.3V
Check PSU DC Voltage
P401_5,6,7,8 pin : 13.2V
Replace PSU
Check Inverter Control
P401_11pin : High
Check Power Board or Module
Check DC Output Voltage
IC400 : 1.15V+5V / IC404 : 1.5V
Q406 : 3.3V
Replace IC400, IC404, Q406
Check Micom Voltage
L206 : +3.3V (AVDD_NODIE)
Replace L206
Check LVDS Power Voltage
Q405 : 13.2V
Replace Q405
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board
Change Module
ok
ok
ok
ok
ok
ok
ok
ok
No
No
ok
Replace IC405 (DCDC)
ok
No
No
No
No
No
No
No
Re-download software.
(IC102, IC1300)
Main B/D 3.5V Line
Short Check