Service Manuals, User Guides, Schematic Diagrams or docs for : LG LCD LG 49UH6100 WebOS 3.0 Training LG+49UH6100+Training
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LG
2016 UHD Training Materials
49UH6100 webOS 3.0 TV
IN-START
IN START SERVICE MENU SCREENS
LG
2016 UHD Training Materials
49UH6100 W bOS 3 0 UHD TV
WebOS 3.0
POWER SUPPLY TESTING
(Using a Simple 3V Jig)
49UH6100 SMPS (Power Supply) Drawing 49UH6100 (2016) Power Supply Section
To Panel Backlights (Dim to Bright) Can not use Smart Test Jig on this model for
P801 "SMPS Board" To "LED Backlights" Backlight Power 169.0V~163.6V pin 7 SMPS test mode.
PIN LABEL RUN Diode Pin 1 goes to Backlight Driver Q801 (Back of SMPS)
1 LED- 78.4V~55.78V OL Can not run normal Panel Test by removing
3 LED+ Pins 3-5 shorted
together on SMPS OL
P801 Vx1 cable on T-CON and supplying 12V to
D802
D803
LED- L801 Gnd T-CON fuse. It will not work. Can not use
D201
5 123.7V~109.4V 13.12V Smart Test Jig on this model for T-CON test.
7 LED+ 169.0V~163.6V OL Gnd
Backlight
In Out Dim to Bright Power
Gnd
D204
D206
D205
No Stand-By Voltages Backlights *0% to 100%
D202
D203
Pins 2, 4, 6 are n/c.
13.12V
80V Gnd
Pins 3 and 5 are jumped together T101 P201 "SMPS Board" To P2502 "MAIN Board"
Direct Lit Backlights (LED Array Strips) IC102
PIN LABEL STBY RUN Diode
36 Total LEDs. 4 Strips with 9 LEDs per/strip.
IC103
Secondary P201 (3) 12 P_DIM1 0V *0.18V-3.24V OL
Primary
23.40V SMPS (2) 11 MS (Drv_On) 0V 2.03V OL
IC102 IC103 D107 9-10 Gnd Gnd Gnd Gnd
1) 11.54V 1) 1.10V
P/N: EAY64388811
4-8 13.2V 7.90V 13.11V OL
Chassis 2) 10.52V Chassis 2) 0V D101
Can't Read
3.15A / 250V 3 Gnd Gnd Gnd Gnd
Gnd Gnd Run: 400V D602
Hot Hot D109 STBY: 186.7V
(3) 2 N/C n/c n/c n/c
Gnd 3) Hot Gnd Gnd 3) 16.87V F101 (1) 1 PWR_ON 0V 3.29V 0.87V
200V 400V
4) 1.50V 4) 20.96V
+
*Dim to Bright
C611
460V
68uF
107.2V
-
CX101
SMPS TEST: Forcing SMPS On. (1) PWR-On Pin 1: Turns on 13.2V to the Main. No
This test requires simple 3V jig. See below.. D601 backlights at this time. Backlight Power is 160.8V.
106V L601
LF103
TH101
(2) MS(DRV_On) Pin 11: Turns on the Backlights.
Remove AC Power. CX102
Disconnect P2502 on Main Board. LF101 Backlight power goes to 169V.
Test 1: Using a 3V jig, Jump 3V to pin 1 (PWR_ON).
BD101
(3) P_DIM#1 Pin 12 and P_DIM#2 Pin 2: Will vary
Apply AC Power. (No Backlights in Test 1) AC
F100 LF102 according to incoming video IRE level and OSD Backlight
(Pins 4-8) rises to 13.14V. Backlight Power 160.8V.
Remove AC Power. P_DIM will be 10.12V
5A / 250V setting Output from the Video Processor. It is then routed
HGnd out P2300 to P201 and sent to the LED Driver IC on the
Back of the SMPS.
Test 2: Using a 3V jig, Jump 3V to pin 11 (DRV_ON). The Range is: 0.18V~3.24V.
Apply AC Power. All Voltages should be produced.
(13.14V to Main and 149.7V to the Backlights).
This will also force the Backlights to come on. SMPS MAIN
All 6 screws are M3X5L (Silver)
P_DIM will be 10.12V P201 P2502
Label Pin Pin Label
P201 Note: SK100 AC Hot Gnd
P_DIM1 12 2
Test 2 11 12 P201 still inserted. P2502 removed. (Shock Hazard)
Use P2502 side to insert resistors. MS 11 1 DRV_ON
2 AA (3V)
Note: 7.90V (Pins 4-8)
VOLTAGE LABEL Gnd 9-10 3-4
Must be present when AC is applied before
beginning test indicating Standby is OK. 12.2V 4-8 5-8, 10
3 MODEL LGP49L1U-15CH1
Gnd 3 9
INPUT AC100V~240V~50/60Hz. 2.5A
3V JIG: Made from 2 (AA) batteries. N/C 2 12
Test 1 1 2 Jump + to ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo