LG 50PX950-SA (CHASSIS:PB01B) Service Manual ▷ View online
V
Select download file (epk file)
V
After download is finished, remove the USB stick.
V
Press “IN-START” key of ADJ remote control, check the
S/W version.
S/W version.
CAUTION
- DO NOT REMOVE USB MEMORY CARD FROM USB PORT
- DO NOT REMOVE USB MEMORY CARD FROM USB PORT
WHEN YOU FIND BELOW DESCRIPTION
- " Do not remove the memory card from the port! "
- 13 -
- 14 -
BLOCK DIAGRAM
- 15 -
EXPLODED VIEW
305
207
203
202
303
602
501
400
208
580
300
120
200
209
601
520
604
204
201
206
205
240
301
302
304
590
560
521
900
910
310
570
Except LGEAZ
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
A10
A9
LV1
A12
A22
A7
A21
A2
A13
LV2
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
BCM GPIO/NEC MICOM/FLASH/SYS EEPROM
08/10/28
EAX63347201
NAND_DATA[0]
NAND_DATA[2]
NAND_DATA[3]
NAND_DATA[4]
NAND_DATA[5]
NAND_DATA[7]
NAND_DATA[6]
NAND_DATA[6]
NAND_DATA[1]
NAND_DATA[1]
NAND_DATA[5]
NAND_DATA[2]
NAND_DATA[6]
NAND_DATA[3]
NAND_DATA[0]
NAND_DATA[7]
NAND_DATA[4]
NAND_DATA[1]
NAND_DATA[1]
NAND_DATA[5]
NAND_DATA[4]
NAND_DATA[2]
NAND_DATA[3]
NAND_DATA[6]
NAND_DATA[0]
NAND_DATA[7]
WIRELESS_DL_RX
WIRELESS_DL_TX
D3.3V
D3.3V
NAND_DATA[0-7]
D3.3V
NAND_ALE
NAND_CLE
R63
2.7K
R41
2.7K
R39
2.7K
READY
R57
2.7K
READY
R56
2.7K
READY
R40
2.7K
READY
R45
2.7K
READY
R42
2.7K
R44
2.7K
R43
2.7K
READY
C10
0.1uF
C13
0.1uF
NAND_CLE
NAND_RB
D3.3V
NAND_DATA[0-7]
NAND_ALE
NAND_CE
D3.3V
NAND_RE
C12
10uF 6.3V
D3.3V
NAND_WE
R14
4.7K
R23
0
SW10
SKHMPWE010
1
2
4
3
5
R22
10K
SYS_RESET
R19 0
READY
D3.3V
D3.3V
IC103
KIA7029AF
2
G
3
O
1
I
D3.3V
R17
10K
READY
SOC_RESET
SUB_SDA
R117
0
R104
10K
+3.3V_NEC_ST
EDID_WP
NEC_ISP_RXD
NEC_RXD
C21
0.1uF
16V
R156
100K
RL_ON
IC701
UPD78F0513AGA-GAM-AX
1
P60/SCL0
2
P61/SDA0
3
P62/EXSCL0
4
P63
5
P33/TI51/TO51/INTP4
6
P75
7
P74
8
P73/KR3
9
P72/KR2
10
P71/KR1
11
P70/KR0
12
P32/INTP3/OCD1B
13
P31/INTP2/OCD1A
14
P30/INTP1
15
P17/TI50/TO50
16
P16/TOH1/INTP5
17
P15/TOH0
18
P14/RXD6
19
P13/TXD6
20
P12/SO10
21
P11/SL10/RXD0
22
P10/SCK10/TXD0
23
AVREF
24
AVSS
25
ANI7/P27
26
ANI6/P26
27
ANI5/P25
28
ANI4/P24
29
ANI3/P23
30
ANI2/P22
31
ANI1/P21
32
P20/ANI0
33
P130
34
P01/TI010/TO00
35
P00/TI000
36
P140/PCL/INTP6
37
P120/INTP0/EXLVI
38
P41
39
P40
40
RESET
41
P124/XT2/EXCLKS
42
P123/XT1
43
FLMD0
44
P122/X2/EXCLK/OCD0B
45
P121/X1/OCD0A
46
REGC
47
VSS
48
VDD
R109
22
C19
0.1uF
5V_ON
R119
0
KEY1
+3.3V_NEC_ST
+3.3V_NEC_ST
C24
0.1uF
16V
FLMD0
FLMD0
001:F5;001:H5
AC_DET
MODEL1_OPT_2
R161
10K
R111
0
RESET_NEC
001:F4
LED_RED
R
1
6
9
2
2
MODEL1_OPT_0
R
1
7
3
2
2
LED_BREATHING
R
1
7
0
2
2
1.2V_1.8V_EN
R112
4.7K
R116
22
R
8
3
4
7
K
1/10W
5%
OCD1B
R166
0
NEC_ISP_TXD
R163
22
R113
4.7K
R115
22
R82
10K
R168
0
R107
10K
X11
32.768KHz
TXC
C20
0.1uF
ERROR_DET
KEY1
NEC_TXD
R162
22
OCD1B
MODEL1_OPT_3
IR_NEC
R171
0
LED_WHITE
R110 0
RESET_NEC
R160 0
SOC_RESET
NEC_ISP_RXD
R114 0
R120
0
R
1
7
2
2
2
R167
0
HDMI_CEC
MODEL1_OPT_1
SUB_SCL
KEY2
+3.3V_NEC_ST
NEC_ISP_TXD
+3.3V_NEC_ST
WIRELESS_PWR_EN
R108
22
D3.3V
FLMD0
P11
12505WS-12A00
1
2
3
4
5
6
7
8
9
10
11
12
13
WIRELESS_DETECT
R32
10K
PK50/PK90
R38
10K
PK50/PK70
R29
100
MODEL1_OPT_2
R37
10K
PK90
R35
10K
READY
DISP_EN
AMP_RESET_N
+3.3V_NEC_ST
MODEL1_OPT_1
MODEL1_OPT_0
R34
10K
READY
MODEL1_OPT_3
R31
10K
PK70
R30
100
R36
10K
READY
R33
10K
READY
R26
10K
NEC_ISP_RXD
OCD1B
R25
10K
R28
10K
NEC_ISP_TXD
+3.3V_NEC_ST
R27
10K
D3.3V
SIDEAV_DET
FE_TS_VAL
TUNER_RESET
MODEL_OPT_5
MODEL_OPT_1
BCM_TX
MODEL_OPT_3
AUD_MASTER_CLK
SDA3_3.3V
DDC_SCL
R138
22
SCL1_3.3V
NAND_DATA[0-7]
SCL0_3.3V
NAND_CE
DDC_SDA
D3.3V
R102
22
R130
100
NAND_ALE
/RST_HUB
NAND_WE
R129
100
SDA2_3.3V
R136
0
RF_BOOSTER
SDA1_3.3V
R103
22
BT_RESET
SCL2_3.3V
R132
0
COMP1_SW
D3.3V
SCL3_3.3V
R84
22
DSUB_DET
EPHY_LINK
R89
22
NAND_RE
NAND_RB
NAND_CLE
EPHY_ACTIVE_Y
R92
100
MODEL_OPT_2
MODEL_OPT_0
SDA0_3.3V
R121
22
R78
33
BCM_RX
MODEL_OPT_4
X10
10MHz
C18
12pF
C17
12pF
R74
1K
R70
1K
READY
R73
1K
READY
R53
100
D3.3V
MODEL_OPT_1
R64
1K
MODEL_OPT_4
R55
100
MODEL_OPT_2
R59
1K
READY
R65
1K
R54
100
MODEL_OPT_3
R68
1K
R71
1K
READY
R66
1K
MODEL_OPT_5
BT_ON/OFF
R60
1K
READY
R72
1K
READY
R69
1K
R67
100
MODEL_OPT_0
OCD1A
OCD1A
OCD1A
R81
10K
WIRELESS_DL_TX
WIRELESS_DL_RX
R13
0
0
READY
VREG_CTR
SDA1_3.3V
SCL1_3.3V
RESET
SCL3_3.3V
SDA3_3.3V
R49
2.7K
READY
R46
2.7K
R47
2.7K
R50
2.7K
READY
R62
2.7K
R61
2.7K
R48
2.7K
R51
2.7K
R52
2.7K
READY
R12
10K
R153
2.2K
R152
2.2K
R151
4.7K
READY
R150
4.7K
READY
R149
4.7K
R148
4.7K
P10
12505WS-06A00
1
2
3
4
5
6
7
MOD_ROM_TX
MOD_ROM_RX
R10
2.7K
R77
2.7K
R80
2.7K
R79
2.7K
R11
2.7K
C11
22uF
16V
16V
C15
0.1uF
16V
R24
0
READY
R175
4.7K
READY
R174
4.7K
READY
R124
0
R137
0
R123
0
R58
2.7K
READY
R18
910
R15
330
330
WATCH_DOG_RESET
COMP2_SW
COMPOSITE1_SW
R155
4.7K
R154
4.7K
R157
3K
R118
100
R164 100
R165
0
RF_SWITCH_CTL
HDMI_HPD_4
008:R29
+3.3V_EN
R176
0
R177
0
R20
10
R21
10
HDMI_HPD_1 008:H29
HDMI_HPD_3
008:H10
HDMI_HPD_2 008:H20
R122
1K
R125
1K
R127
1K
R95
1K
HDMI_POWER_1
HDMI_POWER_2
HDMI_POWER_3
HDMI_POWER_4
FLASH_WP
Q10
KRC103S
KRC103S
FLASH_WP
E
B
C
FLASH_WP
R131
0
R87
0
READY
R94
0
R86
0
R88
0
READY
R96
0
R97
0
R98
0
R139
0
R147
100
R178
0
R179
100
IC500
NAND04GW3B2DN6E
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VDD_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
AL
3
NC_3
6
NC_6
16
CL
15
NC_10
14
NC_9
13
VSS_1
12
VDD_1
11
NC_8
10
NC_7
9
E
8
R
7
RB
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
W
DEMOD_RESET
R180
0
READY
R181
0
READY
R158
120K
1/16W
1%
1%
R159
100K
1/16W
1%
C22
22pF
50V
TXC
C23
27pF
50V
TXC
C25
0.1uF
R182
4.7M
4.7M
1/8W
5%
5%
R183
0
R184
0
R185
0
R186
0
FLASH_WP
C14
0.1uF
0.1uF
R187
0
X11-*1
32.768KHz
KDS
C22-*1
15pF
50V
15pF
50V
KDS
C23-*1
15pF
50V
15pF
50V
KDS
IC14
M24C16-WMN6T
0IMMRSG036B
3
NC/E2
E2
2
NC/E1
E1
4
VSS
GND
1
NC/E0
NC
5
SDA
SDA
6
SCL
SCL
7
WC
WC
8
VCC
VCC
IC102
M24M01-HRMN6TP
3
E2
2
E1
4
VSS
1
NC
5
SDA
6
SCL
7
WP
8
VCC
/3D_FPGA_RESET
L/R_DETECT
R190
0
R191
0
R192
0
READY
R193
0
READY
IC100
LGE3556CP (C0 3D PIP)
GPIO_00
N26
GPIO_01
L26
GPIO_02
N25
GPIO_03
L25
GPIO_04
K27
GPIO_05
K28
GPIO_06
K24
GPIO_07
K26
GPIO_08
K25
GPIO_09
AA27
GPIO_10
AA28
GPIO_11
AA26
GPIO_12
L1
GPIO_13
L3
GPIO_14
L2
GPIO_15
Y25
GPIO_16
Y26
GPIO_17
M27
GPIO_18
AA25
GPIO_19
R25
GPIO_20
N28
GPIO_21
N27
GPIO_22
AH18
GPIO_23
P23
GPIO_24
M23
GPIO_25
AD19
GPIO_26
AE19
GPIO_27
M4
GPIO_28
M5
GPIO_29
L23
GPIO_30
Y28
GPIO_31
Y27
GPIO_32
G2
GPIO_33
G3
GPIO_34
G5
GPIO_35
G6
GPIO_36
G4
GPIO_37
L24
GPIO_38
P25
GPIO_39
L5
GPIO_40
K4
GPIO_41
K1
GPIO_42
L27
GPIO_43
M26
GPIO_44
N23
GPIO_45
R28
GPIO_46
R27
GPIO_47
R26
GPIO_48
P28
GPIO_49
P27
GPIO_50
K6
GPIO_51
K5
GPIO_52
P26
GPIO_53
M3
GPIO_54
M2
GPIO_55
M1
GPIO_56
L4
GPIO_57
L6
SGPIO_00
W27
SGPIO_01
W28
SGPIO_02
W26
SGPIO_03
W25
SGPIO_04
J2
SGPIO_05
J1
SGPIO_06
K3
SGPIO_07
K2
EBI_ADDR3
J23
EBI_ADDR4
J24
EBI_ADDR2
H25
EBI_ADDR1
H24
EBI_ADDR0
H23
EBI_ADDR5
J25
EBI_ADDR6
F26
EBI_ADDR8
H28
EBI_ADDR9
J26
EBI_ADDR13
H27
EBI_ADDR12
G26
EBI_ADDR11
J27
EBI_ADDR10
J28
EBI_ADDR7
F27
EBI_TAB
G24
EBI_WE1B
H26
EBI_CLK_IN
G27
EBI_CLK_OUT
G28
EBI_RWB
K23
EBI_CS0B
G25
NAND_DATA0
U24
NAND_DATA1
T26
NAND_DATA2
T27
NAND_DATA3
U26
NAND_DATA4
U27
NAND_DATA5
V26
NAND_DATA6
V27
NAND_DATA7
V28
NAND_CS0B
T24
NAND_ALE
R23
NAND_REB
T23
NAND_CLE
T25
NAND_WEB
R24
NAND_RBB
U25
SF_MISO
W24
SF_MOSI
U23
SF_SCK
V23
SF_CSB
V24
E_TDO
R195
0
FPGA_D/L
E_TCK
E_TMS
E_TDI
R199
0
R196
0
SYSTEM EEPROM
Boot Strap
1 13
NAND_IO[0] : Flash Select (1)
0 : Boot From Serial Flash
1 : Boot From NAND Flash
0 : Boot From Serial Flash
1 : Boot From NAND Flash
NAND_IO[1] : NAND Block 0 Write (0)
0 : Enable Block 0 Write
1 : Disable Block 0 Write
0 : Enable Block 0 Write
1 : Disable Block 0 Write
NAND_IO[3:2] : NAND ECC (1,0)
00 : No ECC
01 : 1 ECC Bit
10 : 4 ECC Bit
11 : 8 ECC Bit
00 : No ECC
01 : 1 ECC Bit
10 : 4 ECC Bit
11 : 8 ECC Bit
NAND_IO[4] : CPU Endian (0)
0 : Little Endian
1 : Big Endian
0 : Little Endian
1 : Big Endian
NAND_IO[6:5] : Xtal Bias Control (1,0)
00 : 1.2mA
01 : 1.8mA
10 : 2.4mA (Recommand)
11 : 3.0mA
00 : 1.2mA
01 : 1.8mA
10 : 2.4mA (Recommand)
11 : 3.0mA
NAND_IO[7] : MIPS Frequency (0)
0 : 405MHz
1 : 378MHz
0 : 405MHz
1 : 378MHz
NAND_ALE : I2C Level (0)
0 : 3.3V Switching
1 : 5V Switching
0 : 3.3V Switching
1 : 5V Switching
NAND_CLE
0 : Enable D2CDIFF AC (Dns)
0 : Enable D2CDIFF AC (Dns)
1 : Disable D2CDIFF AC
Debugging for AVC
BCM REVIEW
NAND FLASH MEMORY 4G BIT FOR BBTV
Open Drain
RESET
FOR JDEG
ISP Port for SUB MICOM
NEC SUB MICOM
CHECK PIN!!
PIN NAME
MICOM MODEL OPTION
MODEL_OPT_0
PK50/PK90
30
8
MODEL OPTION
PK70
MODEL_OPT_3
HIGH
11
MODEL_OPT_2
MODEL_OPT_1
PK90
PK50/PK70
PIN NO.
LOW
31
NEC CONFIGURATION
* I2C_0 : TUNER
* I2C_1 : HDMI MUX, DEMOD, WIERLESS-JACK
* I2C_2 : NEC, AMP, (NVRAM)
* I2C_3 : SYSYEM EEPROM, MODULE
* I2C MAP
G19
MODEL_OPT_3
F7
B6
PIN NAME
MODEL_OPT_1
HD
PIN NO.
MODEL OPTION
MODEL_OPT_5
E18
LOW
HIGH
C5
MODEL OPTION
FHD
MODEL_OPT_2
MODEL_OPT_4
MODEL_OPT_0
D18
A8’h‘
NOT USE
NOT USE
DDR 512MB
NOT USE
120KOhm 1%
100KOhm 1%
0
MODEL_OPT_3
0
RED ONLY
1
MODEL_OPT_0
0
1
ADD BREATHING
RED & WHITE
0
DDR 256MB
LOW
HIGH
HIGH
chassis option
OPT 1
LOW
LOW
OPT 5
LOW
HIGH
HIGH
BRAZIL
EURO
AUSTRALIA
replacement micom eeprom p/n : EAN61146201
replacement nvram p/n : EAN61086701
READY
Click on the first or last page to see other 50PX950-SA (CHASSIS:PB01B) service manuals if exist.