Smps Board - LG 55EG9600 Training

55EG9600 Power Supply Board Component Layout

SMPS BOARD

p/n: EAY62992602
POWER SUPPLY TEST
(Using Multi-Gender and Smart Jig):
Use the Smart TV Test Jig and the
Multi-Gender Board and follow the
procedure. See Article 9267.
Using the above Jigs you can also
perform the OLED Panel Test. See
Article 9268.
POWER SUPPLY TEST
(Using 3V Simple Jig):
See Article 55EG9600 Power Supply
Testing.
12VM TO MAIN TEST
OR
1157
12VT TO T-CON LOAD
TEST:
Solder two leads to the
terminals only on a 1157
Solder
auto bulb.
Place one lead on 24V
and one on Gnd.
24VS TO MAIN TEST OR
24VD TO T-CON LOAD
1157
TEST:
Solder two leads to the
terminals only on a 1157
Solder
auto bulb.
Place one lead on 24V and
one on Gnd.
DIODE CHECK CONNECTORS CONNECTED.
3.5V_ST P201: 1.13V (Blk on Gnd) 0.20V (Red on Gnd)
12VM P201: 1.02V (Blk on Gnd) 0.12V (Red on Gnd)
24VS P201: 0.77V (Blk on Gnd) 0.39V (Red on Gnd)
12VT P202: 0.47V (Blk on Gnd) 0.37V (Red on Gnd)
24VD P203: 1.0V (Blk on Gnd) 0.22V (Red on Gnd)
November 2018
F102
5A / 250V
Both Fuses
Stby: 170.8V
Run: 394.6V
Also C620~2
+ Leg
Primary
Solder
IC102 IC152
No
Solder
No
Solder
Solder
VOLTAGE LABEL
MODEL LGP55-15OP
INPUT AC 100V-240V
3.5V = 1.2A To Main
12V = 3.5A (12VM) To Main
OUTPUT
12V = 6.0A (12VT) To T-CON
24V = 1.0A (24VS) To Main
24V = 10.6A (24VD) To T-CON
L602 L601
L604 L603
Can't Read
IC501
IC502
F101
3.15A / 250V
IC506
Q501
D254
D253
T103
D252
D251
Secondary
Chassis Gnd
P202
24VD to T-CON
D254
P202 "SMPS Board" to "T-CON" CN5
PIN LABEL RUN
D253
1-7 Gnd Gnd
8-15
*24VD 22V/23.95V
D252
* APS On/Off (DPC Controlled)
D251
P203 "SMPS Board" to "T-CON" CN11
PIN LABEL RUN
1-6 Gnd Gnd
7-12
12VT 11.96V
13 N/C n/c
. 50/60Hz. 5A
14
Gnd Gnd
Page 02
55EG9600 OLED (2015) Power Supply
RL101
Normal
Open
RL101
12V
Hot Gnd
P102 "SMPS Board" to "Filter board" P102
PIN LABEL STBY
14 ACD_Line
IC104
12-13 No Pin
8-11 B- *Hot_Gnd
5-7 No Pin
T501
1-4 B+ 169.7V
B- (Hot Ground) Pins 4~7 ( Referenced – Leg BD101~4)
IC503
B+ Pins 11~14 (+ Leg of BD101~4
Pins 11~14 referenced to Hot Gnd (B-)
P201 "SMPS Board" to P2399 "MAIN Board"
PIN LABEL STBY
23-24 Gnd
19-22 24VS
(3) 12VT_ON
18
16-17 Gnd
11-15 12VM
9-10 Gnd
7-8 3.5V_ST 3.56V
6 Gnd
5
3.5V_ST 3.56V
4 (4) ACD
(5) DPC
3
2 (2) DRV_ON
Diode Check
1 (1) PWR_ON
Gnd
Main Board P2399 pins are the same as shown here.
1.05V
(1): Pin 1 (PWR_ON): Turns on 12VM and 24VS to
the Main. It does not turn on T-CON 24VD or 12VT.
If the 12VM is missing, the set will click on and then
click back off. (Shows up as 5VMNT on the Power
Off Status).
(2): Pin 18 12VT_ON): is (Panel_CTL) from Main.
Diode Check
This turns on the T-CON 12VT, (which is T-CON
Gnd
12VT P202 pin 7-12).
(3): Pin 2 (DRV_ON): is (INV_ON) from Main. This
0.50V
turns on the T-CON 24VD, (which is also T-CON
n/c
24V P203 pins 8-15). This 24VD is then routed
directly to the Panel.
Gnd
(4) ACD (AC_DET): This pin monitors the AC input.
If it is missing the TV will not turn on.
Power_Off_by_AC_DET is registered in the Power
Off Status.
(5) Pin 3 (DPC): Places the Power Supply in Power
Saving Mode when APC in the Customer's Picture
Menu is turned On. (0V Off / 3.4V On)
RUN Diode Check
22.14V 22.18V OL
*Hot_Gnd *Hot_Gnd
111.6V OL
RUN Diode Check
Gnd Gnd Gnd
0V 24.59V 0.82V
0V 3.52V OL
Gnd Gnd Gnd
0V 11.99V 1.03V
Gnd Gnd Gnd
3.54V OL
Gnd Gnd Gnd
3.54V OL
0V 3.32V OL
0V 0V/3.40V 1.20V
0V *3.12V 1.20V
0V 3.42V 1.20V
LG