LG 55EG9600 Installation guide

LG
55EG9600 WebOS 2.0 OLED TV
2015 4K OLED Training
Power On/Off Status
In-Start Service Menu Screens
Published November 12th, 2018

LG
November 2018
Accessing the In-Start Service Menu
To access the Service Menu.
1) You must have either Service Remote.
p/n 105-201M or p/n MKJ39170828
2) Press “In-Start”
3) A Password screen appears.
4) Enter the Password.
Note: A Password is required to enter the Service
Menu. Enter; 0413
Note 1: Older sets used 0000.
MKJ39170828
105-201M
Accessing the Service Menu
Note 2 webOS Models: While in the In-Start Menu,
the Cursor Right or Cursor Left does not work with the
105-201M remote on the Left. Use the Customer’s
Remote Control Cursor Keys.
Page 01
55EG9600 (2015) In-Start Menu
Close
Enter Password

Model Name: :55EG9600-UA
Serial Number: :508RMEN3C828
S/W Version : 04.05.60.01
MICOM Version :V2.21.0
BOOT Version :72/3.00.73-73
URSA Version :OK(0x6212)
Chip Type :LM15U
Wi-Fi Channel :1
Wi-Fi MAC : 4C:09:D4:CD:15:8E
Wi-Fi Speed : USB 2.0
MAC Address : C8:08:E9:1E:3B:86
IP Address :192.168.50.78
SFU Key : OK
Widevine : LGTV15CMSD002116399
ESN Num. : LGTV20154=41011841353
HDCP2(Miracast/HDMI) : OK/OK
DTCP :OK
RF Receiver Version :1.2.7.80
Wi-Fi/Magic Search :OK/OK
Camera Ver. : NULL
Debug Status :RELEASE
SIGN Key :PRODKEY
Eye Check :OK
Control Key NG:
Access USB Status: 1/-1(T)/-1(C)
UTT : 25
OLED Last Compensation Done UTT:20
OLED Compensation Count : 7
APP History Ver : 2142
PQL DB: OLED SI2178B_BE_XXXXXX
Video : NULL
IN START
1. Country Group (Press OK to Save)
Country Group Code
Country Group
Country
2. Area Option
3. Tool Option
Tool Option 1
Tool Option 2
Tool Option 3
Tool Option 4
Tool Option 5
Tool Option 6
Tool Option 7
Tool Option 9
4. Adjust White Balance:
5. Adjust ADC(OTP):
Component
6. EDID:
HDMI1
HDMI2
HDMI3
1. Adjust Check
2. ADC Data
3. Power On/Off Status
4. System 1
5. System 2
6. System 3
7. Model Number D/L
8. Test Option
9. Spread Spectrum
10. Stable Count
11. SDP Server Selection
12. RF Remocon Test
13. OLED
14. Access Code
Adjust Check
Bring up the Service Menu using the Service Remote and pressing “In-Start” enter password 0413.
ESN: Electronic
Serial Number
Unit Total
Time
Country Group
SW
Version US
Selection Plane This section will change dependant upon which
item was selected in the Selection Plane
WiFi Board
Communication
Adjust Check
Note 1: Many of the Tool Options are “Locked” in 2015 models
EZ-Adjust Menu.
55EG9600 Service Menu First Page
Page 02
Note 2: While in the In-Start Menu, the Cursor Right or Cursor Left
does not work. Use the Customer’s Remote control cursor keys.
02
US
US
22282
34406
5140
665
64774
18598
2378
44651
512
OK(0)
OK
OK
OK
OK (0x49,0x7b)
OK (0x49,0x6b)
OK (0x49,0x5b)
Status Plane: (Snap Shot) Not accessible
55EG9600 (2015) Service Menu
November 2018 LG

55EG9600 (2015) Service Menu
November 2018 LG
Model Name: :55EG9600-UA
Serial Number: :508RMEN3C828
S/W Version : 04.05.60.01
MICOM Version :V2.21.0
BOOT Version :72/3.00.73-73
URSA Version :OK(0x6212)
Chip Type :LM15U
Wi-Fi Channel :1
Wi-Fi MAC : 4C:09:D4:CD:15:8E
Wi-Fi Speed : USB 2.0
MAC Address : C8:08:E9:1E:3B:86
IP Address :192.168.50.78
SFU Key : OK
Widevine : LGTV15CMSD002116399
ESN Num. : LGTV20154=41011841353
HDCP2(Miracast/HDMI) : OK/OK
DTCP :OK
RF Receiver Version :1.2.7.80
Wi-Fi/Magic Search :OK/OK
Camera Ver. : NULL
Debug Status :RELEASE
SIGN Key :PRODKEY
Eye Check :OK
Control Key NG:
Access USB Status: 1/-1(T)/-1(C)
UTT : 25
OLED Last Compensation Done UTT:20
OLED Compensation Count : 7
APP History Ver : 2142
PQL DB: OLED SI2178B_BE_XXXXXX
Video : NULL
IN START
1. Adjust Check
2. ADC Data
3. Power Off Status
4. System 1
5. System 2
6. System 3
7. Model Number D/L
8. Test Option
9. Spread Spectrum
10. Stable Count
11. SDP Server Selection
12. RF Remocon Test
13. Access Code
Power Off Status
Bring up the Service Menu using the Service Remote
by pressing “In-Start” enter password 0413 or 0000.
55EG9600 Power On/Off Status (IN START) Screen
Most Recent
0. POWER_ON_BY_REMOTE_KEY
1. POWER_OFF_BY_REMOTE_KEY1
2. POWER_ON_BY_LAST_POWERON
3. POWER_OFF_BY_LOCAL_KEY
4. POWER_ON_BY_LAST_POWERON
5. POWER_OFF_BY_ACDET
6. POWER_ON_BY_SW_DL
7. POWER_OFF_BY_SW_DL
8. POWER_ON_BY_REMOTE_KEY1
9. POWER_OFF_BY_LOCAL_KEY
10. POWER_ON_BY_LOCAL_KEY
11. POWER_OFF_BY_REMOTE_KEY1
12. POWER_ON_BY_LAST_POWERON
13. POWER_OFF_BY_ACDET
14. POWER_ON_BY_LOCAL_KEY
15. POWER_OFF_BY_LOCAL_KEY
16. POWER_ON_BY_LOCAL_KEY
17. POWER_OFF_BY_LOCAL_KEY
18. POWER_ON_BY_LOCAL_KEY
19. POWER_OFF_BY_REMOTE_KEY1
20. POWER_ON_BY_LAST_POWERON
21. POWER_OFF_BY_ACDET
22. POWER_ON_BY_SW_DL
23. POWER_OFF_BY_SW_DL
Power On/Off Status
Select Item 3
Page 03
The WebOS In-Start menu now includes the Power Off/On Status. In other words, the
reason the TV turned On or Off the last time.
Example: POWER_ON_BY_LAST_POWERON indicates the TV was ON when AC was
removed. When AC was returned, the TV turned on into the Last State in was in before
power loss. So just below that entry should be POWER_OFF_BY_AC_DET.
Note: You can scroll up or down to reveal the last
126 reasons for Turn On or Off.

LG
November 2018
55EG9600 IN-START “Power Off Status” Details (1 of 3) 55EG9600 (2015) In-Start Menu
Page 04
MODE Contents Action
POWER_OFF_BY_17VOVP 17 V Over Voltage Protect (PDP Only) Y, Z, SMPS
POWER_OFF_BY_17VUVP 17 V Under Voltage Protect (PDP Only) SMPS
POWER_OFF_BY_1SEC_POWER_OFF CONDITION: When power button is repeatedly pressed on, CPU does not complete the
boot cycle Main
POWER_OFF_BY_20V_DETECT
RESULT : Micom force to trigger TV power off.
CONDITION : when OLED detects a drop in Drain (depending on panel design) voltage
level (20V).
SMPS, Panel
POWER_OFF_BY_5VMNT
Power off by not detecting 5V monitoring
RESULT : Micom triggers TV power off
CONDITION : During AC on or DC on, stabilization check routine, the voltage level is
incorrect.
Y, Z, Cntl, Main, SMPS
POWER_OFF_BY_ABN
Power off by abnormal status
RESULT : Micom triggers TV power off
CONDITION : when Display port model (Nano LED, LZ9600) does not detect port cable.
Main , IR, T-Con
POWER_OFF_BY_ABNORMAL1 Power off by abnormal status Main, IR, Wifi
POWER_OFF_BY_ACDET
Power off by loss of AC-Detect
RESULT : Micom triggers TV power off
CONDITION : Power detect port drops to low while power in “on” status.
SMPS, Main
POWER_OFF_BY_AUTO_OFF
Power off by auto off function
1. When it lasts for 15 minutes that no signal and no remote key input.
2. When screen mute status lasts for 2 hours.
None
POWER_OFF_BY_CH_UPDATE_TIMER start : get channel update in warm standby (for Italy model.) None
POWER_OFF_BY_CH_UPDATE_TIMER_END end : get channel update in warm standby (for Italy model.) None
POWER_OFF_BY_CIPLUS_SEARCH_END CI+ search complete. (Log) Main
POWER_OFF_BY_COMP_END
RESULT: Power off
CONDITION: OLED Compensation (Threshold voltage degradation) completes, (OLED
up to webOS 2.0)
None
POWER_OFF_BY_COMP_FAIL A failure has been reported to the Micom from the OLED display or Compensation was
interrupted. , (OLED up to webOS 2.0) SW, Main, Panel
POWER_OFF_BY_COOLING Power off for cool down the OLED t-con. (OLED) webOS 3.5 or later None
POWER_OFF_BY_CPU_ABNORMAL Power off by CPU Abnormal status Main, IR, Wifi
POWER_OFF_BY_CPUCMD Power off by CPU Command Main, IR, Wifi
POWER_OFF_BY_DATA_FLASH When Micom EEPROM is initialized, log for reference of EEPROM initialization error. Main
POWER_OFF_BY_EDID_WRITE Power off by EDID write done. None
POWER_OFF_BY_EWBS Power off by EWBS function. Main
POWER_OFF_BY_FAN_CONTROL Power off by fan control Fan / Main
POWER_OFF_BY_FAN_CTRL_ERROR power off by fan control error (for OLED/STB model) Main, Fan
POWER_OFF_BY_HDMI_CEC Power off by HDMI CEC command None
POWER_OFF_BY_HOMING_COMPLETE Power off by Cable Card Update (USA only) N/A
POWER_OFF_BY_INSTOP_KEY Power off by Instop Key None
POWER_OFF_BY_INV_ERROR Power off by LCD module inverter error (OLED) SW, Main, Panel
POWER_OFF_BY_KEYTIMEOUT
Power off when TV is not turned off during a certain time
RESULT : Micom force to trigger TV power off.
CONDITION : When pressing power key while power on status, CPU does not response
within 10 seconds or send delay command.
None
POWER_OFF_BY_MAIN_WDT Main
POWER_OFF_BY_Micom_RESET Main Micom Reset None
POWER_OFF_BY_MICOM_UPDATE Power off by micom update. None

LG
November 2018
55EG9600 IN-START “Power Off Status” Details (2 of 3) 55EG9600 (2015) In-Start Menu
Page 05
MODE Contents Action
POWER_OFF_BY_NO_POLLING
Power off when receiving no reply from a sub-micom
RESULT: TV power off/on (Reboot)
CONDITION: There is no I2C response from CPU for 15 seconds.
Main, IR, WiFi
POWER_OFF_BY_OFF_TIMER Power off by Off timer None
POWER_OFF_BY_OLED_AM_MODE If the module cable is disconnected in W7 model, the micom is force power off TV. None
POWER_OFF_BY_OLED_COMP_FAIL A failure has been reported to the Micom from the OLED display or Compensation was interupted.
(All OLED webOS Before webOS 3.5) Panel, Main, SW
POWER_OFF_BY_ON_TIMER Power off by On timer
Power off when no remote and local key input for 2 hours after power on by On timer. None
POWER_OFF_BY_ONRF_FAIL RESULT: Reboot
CONDITION: OLED module compensation is running but fails. Panel
POWER_OFF_BY_OVERHEATING power off by overheating (for OLED model) Installation / Panel
POWER_OFF_BY_PLLFAIL RESULT: Micom triggers TV power off/on (reboot), due to Micro stops working.
CONDITION: When power on, there is no reply from the Micro. This can be caused by a sub-Micom. Main, IR, WiFi
POWER_OFF_BY_PNWASHDONE Power off by panel noise wash function complited. (OLED after webOS 3.0) None
POWER_OFF_BY_PNWASHFAIL Power off by panel noise wash function fail case. (OLED after webOS 3.0) Panel / SW
POWER_OFF_BY_PNWASHSTART Power off for starting OLED panel noise function in warm state. (OLED after webOS 3.0) None
POWER_OFF_BY_POWER_BD_PROTECT RESULT: Micom triggers TV power off (for power board safety)
CONDITION: when power board gets overloaded. SMPS, Main
POWER_OFF_BY_POWERONLY Request reset by p-only remote key. (condition: DC On) None
POWER_OFF_BY_POWERSOUND Power off by power off sound function. (When Accessibility, TV Power Sound turned On) None
POWER_OFF_BY_QUICK_START Power off by reboot to suspend function.
When the user turns off the TV, reboot the TV with QSM+ as needed. None
POWER_OFF_BY_REMOTE_KEY Power off by remote key None
POWER_OFF_BY_REMOTE_KEY2 RESULT: Micom force TV power off within 1 second. IR, Keys
POWER_OFF_BY_REQUEST_RESET
Power off by request reset
CONDITION 1: Run ‘Initialization’ through Smart TV setting
CONDITION 2: Run ‘App initialization’.
CONDITION 3: Reset is required for Instart setting is changed.
None
POWER_OFF_BY_RESET
Power off by Micom Reset
CONDITION 1: Run ‘Initialization’ through Smart TV setting
CONDITION 2: Run ‘App initialization’.
CONDITION 3: Reset is required for In-Start setting is changed.
None
POWER_OFF_BY_RESUME_FAIL Power off by resume fail when dc on case.
If occur the resume fail, TV will be rebooted. None
POWER_OFF_BY_RS232C Power off by RS232C command None
POWER_OFF_BY_SIG_DETECT Signal command None
POWER_OFF_BY_SLEEP_TIMER Power off by sleep timer None
POWER_OFF_BY_SWDOWN Power off by software download None
POWER_OFF_BY_TEMPERATURE_SENSOR_ERROR power off by temperature sensor error (OLED and HECTO) Installation / Fan
POWER_OFF_BY_VERIFY_FAIL RESULT: System shut down.
CONDITION: verification for LG application fails. Main
POWER_OFF_BY_VSOVP VS Over Voltage Protect (PDP Only) SMPS, Y, Z
POWER_OFF_BY_VSUVP VS Under Voltage Protect (PDP Only) SMPS, Y, Z
POWER_OFF_BY_WARMCHECK
Power off by warm check thread.
It's normal case. When DC on with warm condition, main SoC run the warm check thread.
If the SoC has nothing to do, TV is power off by warmcheck.
Main
POWER_OFF_BY_WEAVE Power off by IOT device. External

LG
November 2018
55EG9600 IN-START “Power On Status” Details (3of 3) 55EG9600 (2015) In-Start Menu
Page 06
MODE Contents Action
POWER_ON_BY_AMAZON power on by amazon hot key (webOS 3.5 or later) None
POWER_ON_BY_CH_UPDATE_TIMER Power on by channel update in warm stand-by (for Italy model.) None
POWER_ON_BY_COMPENSATION_FAIL Cancel the OLED compensation for user DC on. (OLED up to webOS 2.0) SW, Main, Panel
POWER_ON_BY_COOLINGDONE When completed the cooling action(t-con cooling), TV will be DC on with warm
condition. , (OLED after webOS 3.0) None
POWER_ON_BY_CPU_ABNORMAL Power off by CPU checking abnormal behavior Main, IR, Wifi
POWER_ON_BY_EITTIMER Power on by Japan-model EIT (event information table). None
POWER_ON_BY_EWBS When detect the EWBS signal, TV is auto turn on by EWBS. (in warm condition) None
POWER_ON_BY_EWBS_OK Power on by EWBS alert function (hot condition) None
POWER_ON_BY_HDMI_CEC Power on by HDMI CEC message "image view on" and "text view on". None
POWER_ON_BY_LAST_COOL Cycle into muted power on for compensation activity, (after webOS 3.0) None
POWER_ON_BY_LAST_POWERON String for from HOT status to Power on automatically
(In general, with Power On status, AC off/on happens.) None
POWER_ON_BY_LAST_SUSPEND Power on by suspend mode None
POWER_ON_BY_LAST_WARM When AC on after 1st in-stop, TV auto turn on warm state. (webOS3.5~) None
POWER_ON_BY_LOCAL_KEY Power on by local key function. None
POWER_ON_BY_MICOM_PWR_OFF_ON String for Auto Power Off/On
(micom Reboots by PLL_FAIL / COMP_FAIL / RESET and so on. ) None
POWER_ON_BY_NETFLIX Power on by netflix hot key None
POWER_ON_BY_ON_TIMER Power on by on timer function. None
POWER_ON_BY_OPERATOR_SEARCH_TIMER Power on at reservation time for CI plus operator search. None
POWER_ON_BY_PNWASHDONE Power on by panel noise wash function complete. (OLED) None
POWER_ON_BY_PNWASHFAIL Cancel the panel noise wash fucntion for user DC on. SW, Main, Panel
POWER_ON_BY_POWER_ONLY Power on by p-only remote key or UART command None
POWER_ON_BY_QUICK_START Auto on by QSM+ function after power off by quick start. None
POWER_ON_BY_REMIND Power on by remind function. None
POWER_ON_BY_REMOTE_KEY Power on by remote Power Key. None
POWER_ON_BY_RESERVE Power on by reserve function. None
POWER_ON_BY_RS232C Power on by RS-232C command None
POWER_ON_BY_STORE_POWERON Power on by store-only remote. None
POWER_ON_BY_SWDOWN Reboot by s/w down load function None
POWER_ON_BY_WEAVE Power on by IOT device None
POWER_ON_BY_WOBLE When detect BLE signal, TV will be auto DC on. None
POWER_ON_BY_WOL_ONOFF Power on by Wake On Lan from external device through network. None
POWER_ON_BY_WOW_ONOFF Power on by Wake on Wifi None
UNKNOWN Power on/off by other reason. (abnormal case) Main, IR, Wifi

LG
November 2018
55EG9600 “OLED Compensation Details” 55EG9600 (2015) In-Start Menu
POWER_OFF_BY_INV_ERROR (Cracked or Burnt Panel) See Service Bulletin GLZ201600040:
Service Bulletin describes the process for the need to update the Software to 04.20.75 if INV_ERROR happens randomly.
It also describes how to “Unlock” the Main board if (when attempting to turn on the TV) the Power LED blinks 10 times.
Remember, if the Main board is locked, it is locked permanently. It must be reset to work again, in any TV.
Details to bypass Burn detection “INV_ERROR and unlock the Main board found in Service Bulletin GLZ201600040.
POWER_OFF_BY_20V_DETECT (Panel 24V is loaded down):
The 24V which is routed to the T-CON board then to the Panel is monitored by the T-CON board. If this voltage is missing, (Example:
Loaded Down) the T-CON sends back a command EL_VDD_DETECT_22V (high) to the microprocessor pin 44. The Micro shuts off the
TV and then logs 20V_DETECT in the Power Off History screen. Measure the 24V to the T-CON, if missing unplug the panel from the T-
CON board and retest. If it returns, the Panel is defective. If not, check the Power Supply. (See 55EG9600-SMPS-Testing)
POWER_OFF_BY_20V_DETECT (Power Off because AC Power disappears During Run):
Indicates a loss of “AC”. Because the 20V/24V to the T-CON (used by the Panel) drops faster and is detected quicker than the 3.5V
which is monitored for AC_DET.
Power Off History will look like the following;
POWER _OFF_BY_20V_DETECT
POWER_OFF_BY_AC_DETECT (Twice) (Power Off because AC Power disappears During Compensation):
If the AC Power is lost while the TV is performing Compensation, it will log AC_DET twice.
Power Off History will look like the following;
POWER_OFF_BY_AC_DET
POWER_OFF_BY_AC_DET
POWER_OFF_BY_COMP_END:
The Term “Compensation” entry into the Power Off History indicates Compensation has completed. Compensation is run every 2 hours
of consecutive run time when the TV is turned off. (See “OLED” in the In-Start menu for interval).
Page 07
Tip: To know when Compensation is running, if a Jump Drive that has a power
LED is inserted into the USB port, it will remain lit when the TV is powered off.
When compensation completes, the Jump Drive LED will turn off.
Compensation is an internal program that utilizes an algorithm to determine the operational characteristics of the OLED panel individual Cells and then
compensate for changes that take place over time. This keeps the panel running at optimal performance.

LG
55EG9600 WebOS 2.0 UHD OLED TV
MAIN BOARD TROUBLESHOOTING
2015 OLED UHD Training
Main Board Layout and
Voltage Measurements
Published November 20th, 2018

LG
55EG9600 Main Board (With Shield)
Page 01
55EG9600 (2015) Main Board Section
November 2018
MAIN BOARD
55EG9600-UA.
AUSYLJR p/n: EBT63756306
BUSYLJR p/n: EBT63756303
AUSZLJR p/n: EBT64004102
55EG9600-UB.
AUSZLJR p/n: EBT64080802
BUSZLJR p/n: EBT64080803
55EG9600-NA.
AKRYLH p/n: EBT63595501
AKRZLH p/n: EBT63595502
Main Boards Used:
See next page for pictorial
with Shield Removed.

LG
55EG9600 Main Board (No Shield)
Page 02
55EG9600 (2015) Main Board Section
November 2018
P3000 N/C
P7200
To T-CON
P4100
To IR/Joystick and WiFi
P5800 To Speakers
Optical RS232
SVC Only
LAN
USB 1 (3.0)
RF In
P7100
To T-CON
Composite Component
P4101 To WIFI / M-Remote
P2399
To SMPS
HDMI 1
HDMI 2 (ARC)
HDMI 3
USB 2 (2.0)
USB 3 (2.0)
P600 N/C
See next page for Main
Board component details.
MAIN BOARD
Main Boards Used:
Headphones
P103 N/C
P100 N/CP101 N/C
55EG9600-UA.
AUSYLJR p/n: EBT63756306
BUSYLJR p/n: EBT63756303
AUSZLJR p/n: EBT64004102
55EG9600-UB.
AUSZLJR p/n: EBT64080802
BUSZLJR p/n: EBT64080803
55EG9600-NA.
AKRYLH p/n: EBT63595501
AKRZLH p/n: EBT63595502

Gnd
55EG9600 Main Board Component Layout
Page 03
55EG9600 (2015) Main Board
LG
P2399 "MAIN Board" to "SMPS Board" P201
LABELPIN STBY RUN Diode Check
(1) PWR_ON (P_ON on SMPS): Turns on the 12VM and 24VS lines
to the Main. (Not the12VT or 24VD to the T-CON)
(2) 12V_ON (12VT_ON on SMPS): Turns on the 12VT (P202) to the
T-CON (CN11).
(3) INV_CTL (DRV_ON on SMPS): Turns on the 24VD (P203) to the
T-CON (CN5).
(4) AC_DET (ACD on SMPS): If missing will prevent the TV from
coming on. Power Light blinks 3 times, the relay clicks off.
(5) DPC: Places the Power Supply in Power Saving Mode when APC
is turned On. (0V Off / 3.4V On)
TUNER PINS
9. CVBS
8. SIF
7. DIF (N)
6. DIF (P)
5. SDA
4. SCL
3. DIF_AGC
2. N/C
1. 3.3V
LAN
JK5000
Component
JK3801
55EG9600-UA.
AUSYLJR
p/n: EBT63756306
BUSYLJR
p/n: EBT63756303
AUSZLJR
p/n: EBT64004102
AUSZLJR
55EG9600-UB.
p/n: EBT64080802
BUSZLJR
p/n: EBT64080803
55EG9600-NA.
AKRYLH
p/n: EBT63595501
AKRZLH
p/n: EBT63595502
November 2018
Optical
JK3802
IR / JOYSTICK AND WIFI / M-REMOTE VOLTAGES
See next page for Main Board Crystal information.
P4000 and P4001
Voltages and Diode Checks
TU6705
TDJH-H351F
51
DDR
DDR
IC3300
P3000 n/c
IC3000
IC5800
IC2307
IC403
IC404
IC2502
IC13200
+3.3V_Normal
IC13000
IC9100
IC13403
DDR_VTT_URSA
JK4302
HDMI 2
JK4300
HDMI 1
JK4301
RS232
JK3804
R-
R+
L-
L+
To
Speakers
Gnd
Heatsink
Clip
P600 n/c
Gnd
IC101
IC6801
IC4300
+5V_USB_1
JK3102
HDMI 3
Q604
Q2301
IC3302
+1.10V_VDDC_MN864778
EMMC
LGE5352(URSA11)
URSA Processor
PWR_ON
MAIN
BOARD
JK3301
Tuner
P2399
P7100
P7200
LD13200 Lights when
Vx1 connection is OK.
Driven by Q13200
P5800 P4101
P4100
Q4100
To
Joystick/IR
To WiFi/M-
Remote
RUN
1.54V
0.42V
0V
0V
3.28V
3.28V
0.60V
0V
3.28
Accessed from Rear
USB 3
USB 2USB 1
IC100
DDR
DDR
Gnd
IC8100
DDR
DDR
IC2303
+1.5V_DDR
41
Q2398
Q2303
DCP
IC2308 IC2302 IC401
+1.8V
SW600
DEBUG (JTag)
SW13200
URSA RESET
SW13201
DEBUG URSA
IC4100
+3.5V_WIFI
P3000
n/c
SW3000 MICOM RESET
Q3001 P102 n/c
Mute Q5800
P103 n/c
Composite
JK3803
Q3801
Q7103
Q7102
Q7100
Q7101Q7104
Q7105
HTPDAn
LOCKAn
I2CSCL6/SDA6
IC13402
VDDC
LD13200
LD12800
Q12800
LD14000
X13200
(27MHz)
LD12800 Lights when
OSD communication is
OK. Driven by Q12800
LD14000 Lights when
URSA Video is OK.
Driven by Q14000
Q13200
Q14000
Q13400
VID1
Q13401
VID0 Q2503
Q2502
CPU_VID0
CPU_VID1
SPI_FLASH
+1.5V_U_DDR
IC2305
+5V_Normal
IC201
+3.5V_WOL
AVDD_DMPLL
IC6100
Earphone
Amp JK3805
HP Out
X600
(24MHz)
X3300
(27MHz)
LD2300
LD2300 Lights when
+3.3V_NORMAL is OK.
IC400
P100 n/c
P101 n/c
Q3301 HDMI 2
Hot Swap
Q3303
HDMI 1
Hot Swap
Q6502
Q3300 HDMI 3
Hot Swap
JK3300JK3302
+5V_USB_2
+5V_USB_3
LGE5332 (LM14A)
Micro Processor
Heatsink
Clip
NVRAM
+1.1V_VDDC_CPU
IC402
AVDD_DDR
IC200
Gnd GndGnd Gnd
Gnd GndGnd Gnd
GND GndGnd Gnd
(2) 12V_ON 2.24V0V 3.52V
(1) 12VM OL0V 11.99V
Gnd GndGnd Gnd
3.5V_ST 1.25V3.52V 3.54V
3.5V_ST 1.25V3.52V 3.54V
(4) AC_DET OL0V 3.32V
(5) DCP OL0V 0V/3.40V
(3) INV_CTL 1.20V0V 3.12V
(1) PWR_ON OL0V 3.42V1
2
3
4
5
6
9-10
11-15
16-17
18
19-22
7-8
23-24
(1) 24VS OL0V 24.59V
IC12800
Micro
Audio Amp
RS232
CEC
PWR_DET
TU_CVSB
AV1_CVBS_DET
LED_R Driver
X3000 (32.768KHz)
DIODE CHECKS (Connected)
3.5V_ST (0.36V)
12VM (0.36V)
24VS (0.76V)

55EG9600 Main Board Crystals Voltages and Waveforms
Page 04
55EG9600 (2015) Main Board
LG
November 2018
X13200 (24MHz)
For IC12800 (LGE5352(URSA11))
Top Left Leg:
1.71VDC
Top Left Leg:
2.08V p/p
25nSec
500mV
Bottom Right Leg:
3.06V p/p
Top Right, Bottom Left: Ground
X3300 (27MHz)
For IC3300 for (MN864788) EMMC IC
Top Left Leg:
1.55VDC
Top Left Leg:
3.60V p/p
Bottom Right Leg:
2.36V p/p
Top Right, Bottom Left: Ground
Bottom Right Leg:
1.49VDC
Bottom Right Leg:
1.69VDC
25nSec
500mV
X600 (24MHz)
For IC100 for (LGE5332 (LM14A))
Top Left Leg:
1.67VDC
Bottom Right Leg:
3.04V p/p
Top Right, Bottom Left: Ground
Bottom Right Leg:
1.68VDC
25nSec
500mV
Top Left Leg:
2.16V p/p
X3000 (32.768KHz)
For IC3000 for Microprocessor
Right Leg:
512mV p/p
Right Leg:
0.19VDC
10uSec
100mV
Left Leg:
0.72VDC
Left Leg:
504mV p/p

55EG9600 Main P4100, P4101 and P5800 Voltages Checks
Page 05
55EG9600 (2015) Main Board
LG
November 2018
10
9
8
7
6
5
3
2
1
KEY1
P4100 "MAIN Board" to "IR/JOYSTICK"
LABELPIN STBY RUN Diode Check
EYE_SDA 1.99V3.55V 3.50V
Logo LED_R OL1.44V 1.50V
EYE_SCL
4
GND GndGnd Gnd
IR 1.89V3.50V 3.49V
Gnd GndGnd Gnd
+3.5V_ST
KEY2
GND GndGnd Gnd
10
9
8
7
6
5
3
2
1
IR
4
1.99V3.55V 3.50V
1.26V3.52V 3.51V
1.98V3.52V 3.50V
1.98V3.52V 3.50V
Pin 7 IR: 3.78V p/p when transmitted
Pin 7 IR: Voltage drops to 2.8V when IR received
Pin 3 Key 2: drops to 0.58V with the Joystick pressed in
Item 500: IR / Joystick / Power LED Board, p/n: EBR80303801 (Excludes Bracket)
Wire Harness CA6: 10 pin Wire Harness for Joystick / IR Board: p/n: EAD63367003
12507HS-10L To 12507HS-10L_L=400MM... 12507HS-10L 12507HS-10L 400MM 1.25MM 10P
UL21503 AWG#28 N Tube, Ferrite Sheet, PVC+Halogen Free HAENG SUNG CO., LTD
8
7
6
5
3
2
1
M_Module_Reset
P4101 "MAIN Board" to "WIFI / M-REMOTE" Bluetooth Module
LABELPIN STBY RUN Diode Check
WIFI_DP 0.64V0V 0.02V
4
+3.5V_WIFI OL0V 3.51V
WIFI_DM 0.64V0V 0.02V
Gnd GndGnd Gnd
WOL/WIFI_PWR_ON
N/C
GND GndGnd Gnd
8
7
6
5
3
2
1
WIFI
4
1.98V0V 0.02V
n/cn/c n/c
OL0V 3.30V
Item 570 WIFI/Bluetooth Module: p/n: EAT62093301 LGSBW4-1 2.7VTO3.6V
MODULE 0P 54.0x34.0x4.95MM LG INNOTEK CO., LTD
S5 Wire Harness: p/n: EAD63366903
12507HS-08L To 12507HS-08L_L=330MM. 12507HS-08L 12507HS-08L
330MM 1.25MM 8P UL21503 AWG28*8C N PVC+Halogen Free, Absorband
HAENG SUNG CO., LTD
+3.5V_ST DIODE CHECK
CONNECTED “OL”
+3.5V_WIFI DIODE CHECK
CONNECTED 1.08V
1
2
3
4
P5800 "MAIN Board" to "SPEAKERS”
LABELPIN STBY RUN Diode Check
SPK_L- OL0V 2.63V
SPK_R- OL0V 2.63V
SPK_R+ OL0V 2.63V
SPK_L+ OL0V 2.63V
120 p/n: EAB63768302 K0920202 EG95/EF95 Speaker_Right 10W,
90Hz, 76dB EMSONIC CORPORATION
121 p/n: EAB63768301 K0920201 EG95/EF95 Speaker_Left 10W,
90Hz, 76dB EMSONIC CORPORATION

55EG9600 Main Board (Rear View) Tuner Checks
Page 06
55EG9600 (2015) Main Board
November 2018 LG
TUNER B+ SOURCES:
Pin 1:
+3.3V_LAN_TU (Made from IC2302 out pin 6
through L2306 it becomes (+3.3V_Normal).
Through L6504 it becomes +3.3V_TU. Then
through L6500 to the Tuner pin 1.
TUNER SIGNALS:
Pin 6, 7 Dig Video: 230mV p/p
(Only when receiving 8VSB and QAM digital
signals)
Pin 8 SIF: 150mV p/p
Pin 9 CVBS: 1V p/p
(Only when receiving 8VSB Signals Antenna)
Pin 4 Clock and Pin 5 Data:
Only present during channel change. Run Auto
Programming to keep them engaged.
Both approx. 3.2V p/p
1
P2399
24
TUNER PINS
9. CVBS
8. SIF
7. DIF (N)
6. DIF (P)
5. SDA
4. SCL
3. DIF_AGC
2. N/C
1. 3.3V
LAN
JK5001
TU6705
TDJH-H351F
Tuner
RUN
1.54V
0.42V
0V
0V
3.28V
3.28V
0.60V
0V
3.28
1
9
2
8
115

55EG9600 WebOS 2.0 UHD OLED TV
2015 OLED 4K UHD Training
Power Supply Board Layout
Troubleshooting the Power Supply
Published November 19th, 2018

LG
November 2017
55EG9600 (2015 OLED) Power Supply
Power Supply (SMPS) Picture
Page 01
55EG9600 SMPS (SWITCH MODE POWER SUPPLY) BOARD
p/n: EAY62992602
P102 to AC Filter to P102
1
1
P201 to Main to P2399
P203 to T-CON to CN11
1
1
AC Input is input to the AC Filter Board.
See Article “55EG9600 AC Filter Board Information”.
P202 to T-CON to CN5

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 onGnd) 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_ON10V 3.42V 1.20V
(2)DRV_ON20V *3.12V 1.20V
3(5)DPC
4
0V 1.20V
5
Gnd6Gnd 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

IC501
IC102
PIN
1)
2)
3)
4)
5)
6)
7)
STBY
0.91V
1.84V
HGnd
0.02V
388V
15.07V
HGnd
RUN
0.91V
1.88V
HGnd
0.03V
388.7V
15.08V
HGnd
PIN
1)
2)
3)
4)
STBY
0V
0V
HGnd
0V
RUN
17.67V
16.60V
HGnd
1.64V
Cold
Hot
Hot Gnd
55EG9600 Power Supply Component DC Voltages
Page 03
55EG9600 OLED (2015) Power Supply
November 2018 LG
Hot Ground: Use (-) leg of
either C620, C621 or C622.
Cold Ground: Use Chassis
IC503
PIN
1)
2)
3)
4)
STBY
3.56V
3.56V
0V
17.59V
RUN
1.34V
0.18V
15.09V
15.23V
Cold
Hot
IC506
PIN
1)
2)
3)
4)
STBY
3.56V
2.09V
HGnd
0V
RUN
1.15V
0V
HGnd
0.11V
Cold
Hot
IC502
PIN
1)
2)
3)
4)
STBY
3.09V
2.07V
HGnd
3.03V
RUN
3.05V
2.03V
HGnd
1.84V
Cold
Hot
RL101 Module
PIN
3)
4)
1)
2)
STBY
HGnd
0V
Coil
B+
RUN
HGnd
Relay 12V
B+
B+
Hot Gnd Related
3
1234
Top View
412
Bottom View
4
3
12
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 onGnd) 0.37V (Red on Gnd)
24VD P203: 1.0V (Blk on Gnd)0.22V (Red on Gnd)
SMPS BOARD
p/n: EAY62992602
460V
120uF
+-
460V
120uF
460V
120uF
Both Fuses
Stby: 170.8V
Run: 394.6V
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
D211
D212
D213
D214
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
12V
Hot
Gnd
B+
IC152
PIN
1)
2)
3)
4)
STBY
0V
0V
HGnd
0V
RUN
9.78V
8.74V
HGnd
1.11V
Cold
Hot
IC104
PIN
1)
2)
3)
4)
STBY
0.05V
0.05V
3.56V
0V
RUN
2.96V
1.91V
3.53V
3.44V
Hot
Cold
Normal Open
Can’t Read
Remove Silicone
OPTOCOUPLERS
24VD to T-CON
12VT to T-CONTo MAINTo AC FILTER
D211~214 (Center Leg)
All (111V) {23.85V}
(**) STBY
{**} RUN
LEGEND:
D251~254 (Center Leg)
All (111V) {11.90V}
D601
Anode (169.7V) {119.407V}
Cathode (169.2V) {109.8V}
D602
Anode (169.4V) {120.2V}
Cathode (169.4V) {394.8V}
D604
Top Leg (170.5V) {107V}
Bottom Leg (169.4V) {394.8V}
D603
Top Leg (170.5V) {107V}
Bottom Leg (169.4V) {394.8V}
All Plus Legs
(170.8V)
{394.6V}
Q501
B: (0V) {14.36V}
C: (17.14V) {17.57V}
E: (0V) {15.01V}
B
C
E

LG
November 2017
55EG9600 (2015 OLED) Power Supply
Power Supply Operation Explained (1 of 2)
Page 04
(1) When AC is applied to the AC Filter the AC is filtered to prevent Switching noise from the Power Supply radiating back out into the AC Power
lines. This filtered AC is then output P102 to the Power Supply (SMPS) P102. During Standby, the SMPS outputs 3.5V_ST (3.56V) via P201,
24pin connector pins 5, 7 and 8 to the Main board P2399. It then goes through coil L2395 and is filtered by C2395. Note, this line is now Labeled
+3.5V_ST. The output 3.5V_ST is routed to the Microprocessor IC3000 pin 48 as its main power source. It also goes to the Reset circuit R3030,
C3004. At the moment 3.5V arrives at C3004 (+) side, the capacitor isn’t charged, so pin 40 of the Micro is low while the power input pin 48 is
high. This is known as the reset state, where the Microprocessor is reset to the first operational state. As C3004 charges through R3030, pin 40
pulls up and the Micro comes out of Reset. The TV is now in the Stand-By state.
The 3.5V_ST is also routed to pull-up resistors to the Key 1 and 2 lines pulling them up to 3.54V. It is also sent to the IR receiver and as source
voltage for the Power on switch Q2502, but it is not on at this time.
(2) The 3.5V_ST line is also routed to Q3001 CEC buffer, IC4100 +3.5V_WIFI regulator (in case “LG Connect Apps” is turned on, IC6801 RS-232C
Buffer, IC201 +3.5V_WOL regulator (to activate WiFi processing during Standby if “LG Connect Apps is turned on, IC2307 Power Det IC. It is
also pull-up voltage for Q2398 RL_ON driver, Q2303 DCP_CTRL Driver, for the Key 1 and 2 lines, IR and the Room light sensor data lines EYE
SDA/SCL. It is also Power for the IR/Joystick Board P4100 pin 4.
(3) When the Power on is pressed on the Joy Stick (Press in and hold), the Key2 line of P4101 drops to 0.58V so pin 32 of the Micro drops. This
notifies the Micro that the TV should turn on. If the Power On key on the Customer’s Remote is pressed, The IR receiver sends this signal
(3.76V p/p) to the Microprocessor pin 6 and the TV knows by this signal to turn on.
(4) The Micro outputs a low on pin 36 (RL_ON) which is routed through R2389 to pin 2 of Q2398 turning it on. The +3.5V_ST on pin 1 is then
switched out pin 3 and on to the SMPS via pin 1 of P2399. This high arrives at P201 pin 1 and on to the Controller on the SMPS. This command
turns on the 12VM and the 24VS (which is sent back to the Main). 12VM (Main) for all Video /Audio processing and 24VS for (Sound).
(5) The 12VM (11.99V) and the 24VS (24.59) lines are routed out P201 (12VM pins 11-15 and 24VS pins 19-22) and on to the Main board P2399.
The 24VS (labeled +24V on schematic) is used for the Audio amplifier IC5800 (Main).
The 12VM (Labeled +12V) is routed to many different regulators, but for this “Power On” circuit discussion it goes through two coils L2396 and
L2397 and on to the different regulators.
(6) When the 12VM (+12V) is routed to IC2307 (Power Detector pin 3). The +24V is also monitored by IC2308 and tied to the same POWER_DET
Line. These ICs then outputs a high (POWER_DET) to the Micro pin 14 to notify the Micro that the 12V and 24V voltage has arrived. So the
Micro can continue turning on the rest of the set. If missing, the TV will click on and then Click off. This fault shows up in the Power Off Status as
“5VMNT”.
(7) Once the Micro knows the 12VM and 24VS has arrived, it outputs a high on pin 33 (Power_ON/OFF2_1) which is routed through R2303 to pin 1
of IC2302 turning it on. This IC is the +3.3V_NORMAL regulator. The 3.3V output is routed to many different circuits, but one of them is as a
pull-up voltage through R2394 to the INV_CTL (DRV_ON) line. However, the Micro is holding down INV_CTL P2399 pin 2 at this time.