LG 55EA9800-TA (CHASSIS:EB34D) Service Manual ▷ View online
H13
LG1154D
HDMI
Switch
(IC3201 / SII9587CNUC)
HDMI1
HDMI Out put 8bits
I2C_SCL/SDA 5 2bits
CEC_REMOTE
OCP
(IC3202 /
TPS2051)
MHL_DET
SPDIF_OUT_ARC
HDMI_INT
HDMI_S/W_RESET
HDMI2
CEC_REMOTE
HDMI3
CEC_REMOTE
HDMI4
CEC_REMOTE
TMDS Link 8bits
TMDS Link 8bits
TMDS Link 8bits
TMDS Link 8bits
DDC_I2C 2bits
DDC_I2C 2bits
DDC_I2C 2bits
DDC_I2C 2bits
MICOM
(IC3000 /
R5F100GEAFB)
CEC_REMOTE
SPDIF_OUT_ARC
H13 Block diagram
H13 Block diagram
USB2_ DP2 / DM2
USB2
USB_Camera
(구주7600 - Ready)
[USB2_0_DP / DM]
MICOM
(R5F100GEAFB)
[UART0_RXD]
[UART0_TXD]
M_REMOTE_RX / TX
M_REMOTE_CTS / RTS
[UART1_RXD / TXD]
[GPIO15 / GPIO18]
SOC_TX
H13
LG1154D
USB_CAMERA_DP / DM
USB3
USB1
(USB3.0, PVR Ready)
(USB3.0, PVR Ready)
USB3_DP / DM
USB_DP3 / DM3
USB HUB
USB2512B-AEZG
USB2_HUB_IC_IN_DP / DM
[USB2_1_DP0 / DM0]
M_REMOTE_RESET
Motion Remote
Receiver
[GPIO13]
SOC_RX
SOC_TX
SOC_RX
4Pin debugging
Wafer
P3800
[USB3_DP0/DM0]
[USB3_RX0P / M]
[USB3_TX0P / M]
[USB3_TX0P / M]
USB_WIFI
WIFI_DP / DM
[USB2_2_DP0 / DM0]
CAM_DET
MICOM
(R5F100GEAFB)
WOL/WOW_POWER_ON
USB3_RX0P/RX0M
USB3_TX0P/TX0M
USB3_TX0P/TX0M
OCP USB2/3
TPS2062C
USB_CTL2
[EB_CS2/GPIO92]
USB_CTL3
+5V_USB2
+5V_USB3
OCP USB1
TPS2554
USB_CTL2
[HUB_VBUS_CTRL0]
/USB_OCD1
[HUB_PORT_OVER0/1]
+5V_USB1
Interconnection - 1
1
Main PCB
2
PSU
3
WIFI ASSY
4
BT MOTION ASSY
5
IR PCB
[PCBs]
55EA9800
1
2
5
3
4
6
6
Touch Key / Logo
Contents of LCD TV Standard Repair Process
No.
Error symptom (High category)
Error symptom (Mid category)
Page
Remarks
1
A. Video error
No video/Normal audio
1
2
No video/No audio
2
3
Picture broken/ Freezing
3
4
Color error
4
5
Vertical/Horizontal bar, residual image,
light spot, external device color error
light spot, external device color error
5
6
B. Power error
No power
6
7
Off when on, off while viewing, power
auto on/off
auto on/off
7
8
C. Audio error
No audio/Normal video
8
9
Wrecked audio/discontinuation/noise
9
10
D. Function error
Remote control & Local switch checking
10
MR13 operating checking
11
11
12
Wifi operating checking
12
13
Camera operating checking
13
14
External device recognition error
14
15
E. Noise
Circuit noise, mechanical noise
15
16
F. Exterior error
Exterior defect
16
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
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