DOWNLOAD LG 50PM4700-TA (CHASSIS:PA22A) Service Manual ↓ Size: 18.49 MB | Pages: 73 in PDF or view online for FREE

Model
50PM4700-TA (CHASSIS:PA22A)
Pages
73
Size
18.49 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pm4700-ta-chassis-pa22a.pdf
Date
PREV: LG 50PM4700-SA (CHASSIS:PB22A) Service Manual

LG 50PM4700-TA (CHASSIS:PA22A) Service Manual ▷ View online

1. Power-Up Boot Fail Trouble Shooting
Replace Power board
N
Y
Check Micom Redownload or 
replace
Check P1100 All Voltage Level
(17V, 5V, 5V_ST)
Check Power connector
Y
Check Voltage Level 3.3V at 
C1105
N
Replace one of IC1100 & 
Recheck
Y
Y
Check Voltage Level 1.5V at 
C1121
N
Replace one of IC1105
& Recheck
Y
Y
Check Voltage Level 1.2V
at C1130
N
Replace one of IC1102 & 
Recheck
Y
Y
Replace IC103 EMMC Memory
Check All Voltage Level
at Bead
N
Replace one of Bead
& Recheck
Y
N
Replace one of IC400 ~ 403 
& Recheck
Y
Replace  IC100 & Recheck
P1100
1
17V
2
17V
3
GND
4
GND
5
5V
6
SV
7
NC
8
PSU_ERR
9
NC
10
GND
11
GND
12
GND
13
5V_ST
14
NC
15
RL_ON
16
AC_DET
17
MOD_ON
18
GND
L1101 : 5V
L1100 : 17V
L1102 : 5V _ST
■ Power check
1. PSU voltage check
Measure point
Measure point
Measure point
1. Power-Up Boot Fail Trouble Shooting
C110
5 
Measure point
Typ. 3.3V
C112
1
C113
0
Measure point
Typ. 1.5V
Measure point
Typ. 1.2V
1. Power-Up Boot Fail Trouble Shooting
SPDIF OUT
CVBS
USB0 
Audio
AMP
I2S Out
MTK5369
USB2
USB1
CVBS/COMP
RS-232C
PC-RGB
OPTIC
LAN
SYSTEM
DDR3x16_2Gb X 4
(8Gb)
LVDS
HDMI1
HDMI2
HDMI3
HDMI4
COMP
RGB,H/V
With EEPROM
Ethernet
Parallel TS
DIF
CVBS
UART
HDMI
With
EEPROM
RF Emitter
Module(Bluetooth)
I2C
Sub Micom
(Renesas)
HD : 51P
FHD : 80P
USB2
USB1 
NVRAM
(1Mb)
X-TAL
(27MHz)
HDCP2.0
Wi-Fi
CVBS
DVB T F/NIM
Silicon Tuner
DVB T F/NIM
Silicon Tuner
X-TAL
(32.768kHz)
eMMC
(2GB)
RGB_LR
COMP
COMP
PC-AUDIO
DIF
Parallel TS
2. No OSD Trouble Shooting
CVBS/COMP LR
CVBS/COMP LR
COMP LR
COMP LR
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