55EG9600 Power Supply Board Component Layout
Page 02
55EG9600 OLED (2015) Power Supply
November 2018
LG
SMPS BOARD
p/n: EAY62992602
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)
(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.
This turns on the T-CON 12VT, (which is T-CON
12VT P202 pin 7-12).
(3): Pin 2 (DRV_ON): is (INV_ON) from Main. This
turns on the T-CON 24VD, (which is also T-CON
24V P203 pins 8-15). This 24VD is then routed
directly to the Panel.
(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)
(1)
PWR_ON1 0V 3.42V 1.20V
(2)
DRV_ON2 0V *3.12V 1.20V
3
(5)
DPC
4
0V 1.20V
5
Gnd6 Gnd Gnd Gnd
3.5V_ST
11-15
3.56V 3.54V OL
Gnd16-17
12VM
18
0V 11.99V 1.03V
19-22
Gnd23-24
Gnd Gnd Gnd
Gnd Gnd Gnd
P201 "SMPS Board" to P2399 "MAIN Board"
LABELPIN STBY RUN Diode Check
24VS 0V 24.59V 0.82V
0V/3.40V
(4)
ACD 0V 3.32V OL
3.5V_ST 3.56V 3.54V OL
7-8
9-10 Gnd Gnd Gnd Gnd
(3)
12VT_ON 0V 3.52V OL
Main Board P2399 pins are the same as shown here.
3.5V = 1.2A To Main
12V = 3.5A (12VM) To Main
12V = 6.0A (12VT) To T-CON
24V = 1.0A (24VS) To Main
24V = 10.6A (24VD) To T-CON
AC 100V-240V . 50/60Hz. 5AINPUT
OUTPUT
MODEL LGP55-15OP
VOLTAGE LABEL
RL101
12V
Hot Gnd
Normal
Open
B+
5-7
1-4
P102 "SMPS Board" to "Filter board" P102
LABELPIN STBY Diode Check
169.7V
No Pin
8-11 B- *Hot_Gnd *Hot_Gnd
No Pin
14
12-13
ACD_Line 22.14V OL
OL
B- (Hot Ground) Pins 4~7 ( Referenced – Leg BD101~4)
B+ Pins 11~14 (+ Leg of BD101~4
Pins 11~14 referenced to Hot Gnd (B-)
RUN
111.6V
*Hot_Gnd
22.18V
Gnd
8-15
1-7
P202 "SMPS Board" to "T-CON" CN5
LABELPIN RUN Diode Check
Gnd
*24VD 22V/23.95V 1.05V
Gnd
Gnd
7-12
1-6
P203 "SMPS Board" to "T-CON" CN11
LABELPIN RUN Diode Check
Gnd
12VT 11.96V 0.50V
Gnd
N/C
14
13
n/c
Gnd Gnd Gnd
n/c
* APS On/Off (DPC Controlled)
460V
120uF
+-
460V
120uF
460V
120uF
Both Fuses
Stby: 170.8V
Run: 394.6V
Also C620~2
+ Leg
L602 L601
L604 L603
IC102
IC152
P201
P203
P202
P102
460V
120uF
+-
460V
120uF
460V
120uF
460V
120uF
+-
460V
120uF
460V
120uF
T101T102
Can’t Read
D603
Can’t Read
D604
Can’t Read
D251
D252
D253
D254
D251
D252
D253
D254
IC506
IC503
IC502
Q501
IC501
Can’t Read
F102
5A / 250V
F101
3.15A / 250V
Primary
Secondary
Chassis Gnd
IC104
D601
D602
C620C621C622
RL101
T501
T103
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.
1157
Solder
Solder
No
Solder
24VS TO MAIN TEST OR
24VD TO T-CON LOAD
TEST:
Solder two leads to the
terminals only on a 1157
auto bulb.
Place one lead on 24V and
one on Gnd.
12VM TO MAIN TEST
OR
12VT TO T-CON LOAD
TEST:
Solder two leads to the
terminals only on a 1157
auto bulb.
Place one lead on 24V
and one on Gnd.
1157
Solder
Solder
No
Solder
24VD to T-CON
12VT to T-CONTo MAINTo AC FILTER
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