LG 55EA9800-SA (CHASSIS:EJ34D) Service Manual ▷ View online
OLED vs. LED
BLU
+Prism
+Diffuser
Polarizing plate
TFT
Cell
CF Polarizing plate
OLED
LCD
TFT&OLED Polarizing plate
Simple structure with not many
components (without BLU) Paper
slim & light
Self-emitting display
Better response time / contrast
ratio compared to LCD
Indirect light source display, which is
complex and consists of many
components.
Light is supplied from BLU and goes
through many layers
OLED is next generation display which is simple, thin and light. OLED can achieve natural and vivid colors due to self-emitting
characteristics
Main PCB for Broadband
55EA9800
CAM USB
Cl
S
k
55EA9800
CAM USB
Clear Speaker
To PSU
Local Dim.
Module
1
1
Main processor_Digital(LG1152D),
DDR Memory
DDR Memory
3
Flash Memory
2
3
Micom for Key/IR sensing
wifi
Motion assy
2
Main processor_analog(LG1152A)
4
4
HDMI switch (4:1)
Audio AMP (Max 12W)
Motion assy
Front Spk
5
5
IR + Digital Eye
Local Key
H13 Block diagram
DIF(P/N)
AUD
BB_TP_DATA
CVBS
DIF(P/N)
SIF
Tuner
Motion-R
M-Remote_Rx/Tx
OPTIC
SPDIF
LNB
DAC_DATA
AAD_DATA
PC AUDIO
PC_Audio_L/R
H13
LG1154A
A di
H/P
H/P Audio L/R
I2S
CVBS
SCART
SC_CVBS, RGB, Audio L/R
DTV/MNT_LR/V_OUT
H/P AMP
IR_Blaster
IRB_SPI
IR_B
Micom
H13
LG1154D
HSR_P/M
_
AV1_Audio L/R
AV1
COMP1
AV1_CVBS
Comp1 Y,Pb,Pr
Audio
AMP
SPK/
Clear Speaker
Clear Speaker
I2S
HDMI
Switch
HDMI1~4
HDMI CEC
CI
CI
HDMI_CEC
RMII
WOL / WOW
FRC
Logo Light
LVDS : Quad
OLED Module
USB1(USB3.0)
USB2(USB2.0)
USB 3.0
USB 2.0
USB 2.0
USB_W-iFi
PHY
RMII
LAN
FRC
TCON
LVDS : Quad
USB3(USB2.0)
USB
HUB
HUB
16
DDR3
16
DDR3
USB 2.0
USB_CAM
16
DDR3
16
DDR3
8
eMMC
DDR3
DDR3
DDR3
DDR3
eMMC
4Gb×4 (1600)
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