LG 55EG9600 Training page 12

55EG9600 Main Board Component Layout
P2399 "MAIN Board" to "SMPS Board" P201
PIN LABEL STBY
1 (1) PWR_ON 0V
2 (3) INV_CTL 0V
3 (5) DCP 0V
4 (4) AC_DET 0V
5 3.5V_ST 3.52V
6 Gnd Gnd
7-8 3.5V_ST 3.52V
9-10 Gnd Gnd
11-15 (1) 12VM 0V
16-17 Gnd Gnd
18 (2) 12V_ON 0V
19-22 (1) 24VS 0V
23-24 GND Gnd
(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)
DIODE CHECKS (Connected)
3.5V_ST (0.36V)
12VM (0.36V)
24VS (0.76V)
IR / JOYSTICK AND WIFI / M-REMOTE VOLTAGES
See next page for Main Board Crystal information.
P4000 and P4001
Voltages and Diode Checks
November 2018
RUN Diode Check
3.42V OL
3.12V 1.20V
0V/3.40V OL
3.32V OL
3.54V 1.25V
LD13200 Lights when
Vx1 connection is OK.
Gnd Gnd
Driven by Q13200
LD12800 Lights when
3.54V 1.25V
OSD communication is
OK. Driven by Q12800
Gnd Gnd
LD14000 Lights when
URSA Video is OK.
Driven by Q14000
11.99V OL
Gnd Gnd
3.52V 2.24V
24.59V OL
Gnd Gnd
LED_R Driver
Gnd
LGE5352(URSA11)
URSA Processor
IC9100
P7200
DDR
IC12800
41
P7100
DDR
LD12800
LD13200 Q12800
Q13401
X13200
VID0
(27MHz)
LD14000
Q13400
Q13200
51
IC13402
Heatsink
VDDC
Clip
I2CSCL6/SDA6
Q7103 Q7100
Q7102 Q7101
Q7104
HTPDAn IC2502
Q7105
LOCKAn
+1.5V_DDR
IC2303
Q2303
IC404
DDR
DCP
Q2398
PWR_ON
IC403
DDR
P2399
+3.3V_Normal AVDD_DDR
IC2307
IC401
IC2302 IC402
IC2308
DDR
PWR_DET Q2301
Heatsink
SW13201
+1.8V
Clip
DEBUG URSA
SW13200
URSA RESET
P3000 n/c P103 n/c
Mute
Q5800
R-
R+ IC5800
L-
Audio Amp
L+
Micro
Q3001 P102 n/c
CEC
IC3000
X3000
(32.768KHz)
Q4100
MICOM RESET
SW3000
P3000
n/c LAN
Q3801
JK5000
AV1_CVBS_DET
IC4100
+3.5V_WIFI
Page 03
55EG9600 (2015) Main Board
Gnd
+1.5V_U_DDR
IC13403
IC2305
+5V_Normal
IC13000
+5V_USB_2
BOARD
+5V_USB_3
DDR_VTT_URSA
IC201
IC13200
+3.5V_WOL
SPI_FLASH IC200
Q2503
AVDD_DMPLL
CPU_VID1
Q2502
VID1
Earphone
CPU_VID0
Amp
+1.10V_VDDC_MN864778
+1.1V_VDDC_CPU
X600
IC3302
LGE5332 (LM14A)
(24MHz)
Micro Processor
IC100
EMMC
IC3300
Q604
IC400
LD2300
DDR
IC8100
LD2300 Lights when
IC101
+3.3V_NORMAL is OK.
Gnd
NVRAM
SW600
DEBUG (JTag)
Accessed from Rear
TUNER PINS RUN
9. CVBS 1.54V
8. SIF 0.42V
7. DIF (N) 0V
6. DIF (P) 0V
5. SDA 3.28V
4. SCL 3.28V
3. DIF_AGC 0.60V
2. N/C 0V
1. 3.3V 3.28
TU6705
Component
TDJH-H351F
JK3801
Composite Optical
Tuner
JK3803 JK3802
RS232
JK3804
55EG9600-UA.
AUSYLJR
p/n: EBT63756306
BUSYLJR
p/n: EBT63756303
MAIN
AUSZLJR
p/n: EBT64004102
AUSZLJR
55EG9600-UB.
p/n: EBT64080802
BUSZLJR
p/n: EBT64080803
55EG9600-NA.
AKRYLH
p/n: EBT63595501
HP Out
AKRZLH
JK3805
p/n: EBT63595502
IC6100
IC4300
+5V_USB_1
JK4301
JK4300
X3300
(27MHz)
JK4302
HDMI 1
Hot Swap
Q3303
IC6801
RS232
HDMI 2
Q3301
Hot Swap
Q6502
TU_CVSB
Q3300
JK3102
HDMI 3
Hot Swap
LG