LG 50PS2000-ZB (CHASSIS:PD92A) Service Manual ▷ View online
- 13 -
POWER FLOW DIAGRAM
AU
T
O
_
GND
22
M5V-
ON
21
KEY-
ON
24
5
VST
23
SMW20
0
-2
4C
Waf
er
Vs
-
ON
AC
DET
GND
GND
5V
5V
GND
12V
GND
17V
20
18
16
14
12
10
8
6
4
2
RL-ON
5V
D
E
T
GND
GND
5
VST
5V
GND
12V
GND
17V
1
19
17
15
13
11
9
7
5
3
P1
P_
KEY
GPIO90
A
P
2125
3.3
VS
T
Mstar
FET
(Q303)
A
Z
1084S
-3.3
A
Z
1117H
-A
DJ
3
.3V
_MST
1
.8V
_MST
1.3
V_V
D
D
C
M
P
2305
D
S
A
Z
1117H
-1
.2
1.2
V_P
V
S
B
VSB IC
DDR
5
VST
FET
(Q
504)
Po
w
e
r_S
W
V
SB_
C
tr
l
5V_M
S
T
AV
DD_
M
P
L
L
VDD
P
A
V
DD_
ME
MP
L
L
AVDD_A
D
C
AVDD_
D
M
AVDD_OTG
AVDD_A
U
AVDD
_
LPLL
AVDD_
3
3
AV
DD_
DDR
1.3V
_
V
D
D
C
AV
DD_
M
L
IN
K
DD
R1.
8
V
3.3
V_P
V
S
B
1.2V
_D
V
D
D
3.3V
_D
V
D
D
3.3V
_
A
VD
D
USB
M
IC
2019
Y
M
6
5V
5V_U
S
B
HDMI
sw
it
c
h
12V
K
IA
7808
A
F
5V_T
U
Tun
er
A
udi
o
AM
P
HDCP
NVR
A
M
Se
ri
al
Fl
a
s
h
17V
EE
PRO
M
(RGB)
MA
X3232
EE
PRO
M
(HDMI)
L312
L326
L313
L301
L325
IC
30
1
L323
L308
L307
L306
L305
L304
L303
L302
L309
L321
L316
L319
L320
L504
IC
30
2
IC
30
5
IC
3
0
4
IC
80
4
IC
50
3
IC
50
2
3.3V
_
A
MP_
D
V
D
D
3.3V
_
A
MP_
A
V
D
D
L1011
L1010
L501
L503
L324
L331
<Mstar
Po
wer Se
que
n
ce
>
A
Z
1117H
-A
DJ
IC
50
5
- 14 -
HW Power On Sequence (LGE2872A)
- 15 -
EXPLODED VIEW
400
602
200
208
580
301
303
202
207
203
204
205
206
A2
LV1
302
240
603
A10
900
120
501
201
590
250
520
601
901
570
560
310
330
300
305
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
MS_LRCK
SC1_CVBS_IN
100
R102
0 . 1 u F
C122
SIDE_L_IN
0 . 1 u F
C142
4.7K
R107
SIDE_C_IN
1.2K
R170
Flash_WP_1
100
R144
MUTE
SCL_EXPANDER
100
R114
100
R110
SPI_SDI
5V_ON
SPI_SCK
AC_DET
KEY2
LED_RED
22K
R133
100
R185
SC_REC1
100
R115
DSUB_G
TV_L_OUT
22K
R127
DTV/MNT_R_OUT
SC1_FB
DSUB_B
RS232C_TXD
SC2_L_IN
0 . 1 u F
C101
SPI_SCK
DTV/MNT_V_OUT
+3.3V_AVDD_DVI
MS_SCK
1K
R146
LED_RED
100
R168
OPT
0 . 1 u F
C102
100
R109
1K
OPT
R145
DISP_EN
1uF
25V
C143
SC1_L_IN
4.7K
R106
SPI_SDI
TV_R_OUT
COMP_Pr
SPDIF_OUT
AUDIO_MASTER_CLK
SC2_CVBS_IN
SPI_SDO
COMP_Y
PC_R_IN
DSUB_VSYNC
SC1_R_IN
SYSTEM_SCL
0 0 1 : D 1 6 ; 0 0 1 : V 5
VAVS_ON
DSUB_HSYNC
IR
100
R192
POWER_ON/OFF1
1K
OPT
R142
SYSTEM_SDA
0 0 1 : D 1 6 ; 0 0 1 : V 5
KEY1
SPI_CSN_1
SIDE_CVBS_IN
AMP_RST
SC2_R_IN
DSUB_R
Flash_WP_1
MS_LRCH
100
R195
22K
R128
SC2_ID
SPI_SDO
0 . 0 1 u F
OPT
C152
SDA_D_TU
SCL_D_TU
PC_L_IN
0 . 0 1 u F
C150
100
R108
0
OPT
R100
DTV/MNT_L_OUT
100
R169
22K
R132
100
R111
SIDE_R_IN
SC_REC2
1K
R141
SPI_CSN_1
0 . 1 u F
50V
C147
COMP_Pb
TV_CVBS+
0 . 0 1 u F
C149
SIDE_Y_IN
0 . 0 1 u F
OPT
C153
390
1%
R182
0 . 0 4 7 u F
C108
FULL SPEC
0 . 0 4 7 u F
C125
0 . 0 4 7 u F
C106
FULL SPEC
0 . 0 4 7 u F
C130
FULL SPEC
0 . 0 4 7 u F
C127
0 . 0 4 7 u F
C128
FULL SPEC
0 . 0 4 7 u F
C126
FULL SPEC
0 . 0 4 7 u F
C116
FULL SPEC
0 . 0 4 7 u F
C117
FULL SPEC
0 . 0 4 7 u F
C115
47
R181
47
R161
FULL SPEC
47
R183
47
R174
FULL SPEC
47
R190
FULL SPEC
47
R187
47
R188
FULL SPEC
47
R186
FULL SPEC
47
R177
FULL SPEC
47
R172
FULL SPEC
47
R171
56000pF
C151
56000pF
C154
LED_GRE
5V_HDMI_1
5V_HDMI_2
SC1_G
SC1_R
SC1_B
47
R160
FULL SPEC
SIDE_CVBS_DET
SCART2_DET
SCART1_DET
22
R131
SCL_EXPANDER
SDA_EXPANDER
22
R130
COMP_DET
100
R126
FULL SPEC
100
R122
USB_OCD
COMP_R_IN
COMP_L_IN
0 . 0 4 7 u F
C107
FULL SPEC
510
R163
FULL SPEC
510
R164
FULL SPEC
USB_CTL
100
R139
RS232C_RXD
CAT24WC08W-T
IC102
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
SYSTEM_SDA
0 0 1 : F 1 9 ; 0 0 1 : V 5
4.7K
R101
22
R104
SYSTEM_SCL
0 0 1 : F 1 9 ; 0 0 1 : V 5
22
R103
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.
DDC_SCL_3
1M
R156
DDC_SDA_3
HPD2
22
R150
USB_DP
HPD3
SYSTEM_SCL
DDC_SDA/UART_TX
12MHz
X100
SIF+
USB_DM
SYSTEM_SDA
22
R155
22
R154
DDC_SCL/UART_RX
+3.3V_AVDD
4.7K
R113
OPT
4.7K
OPT
R112
0.1uF
C169
SDA_EXPANDER
4.7K
R129
4.7K
R157
5V_CI_CTL
SC1_VOUT_MUTE
JTP-1127WEM
SW100
1
2
4
3
5V_MNT
S_DET
22
R151
22
R149
5V_HDMI_3
100
R193
FULL SPEC
RGB_DET
0 . 1 u F
C104
0 . 1 u F
C170
+3.3V_EXPANDER
+1.8V_EXPANDER
+3.3V_EXPANDER
DDC_SCL_2
DDC_SDA_2
100
R152
100
R153
0 . 0 4 7 u F
C114
47
R176
47
R173
0 . 0 4 7 u F
C119
0 . 0 4 7 u F
C121
47
R180
47
R189
0 . 0 4 7 u F
C129
47
R178
FULL SPEC
0 . 0 4 7 u F
C118
FULL SPEC
0 . 1 u F
C155
0 . 1 u F
C156
0.1uF
C167
100
R124
100
R123
100
R135
100
R136
100
R134
22pF
50V
50V
C159
OPT
22pF
50V
50V
C160
OPT
22pF
50V
50V
C157
OPT
22pF
50V
50V
C158
OPT
0 . 1 u F
C123
0 . 1 u F
C124
DDC_SDA/UART_TX
4.7K
R116
OPT
+5V_ST
+5V_ST
47uF
16V
C166
47uF
16V
C168
R13
OPT
R12
OPT
0 . 0 4 7 u F
C111
0 . 0 4 7 u F
C110
47
R165
47
R175
0
R15
OPT
+5V_SYS
+3.3V_VDDP_ST
+3.3V_AVDD
10K
R140
10K
R148
FULL SPEC
0 . 0 4 7 u F
C112
47
R166
100
R118
100
R117
0 . 0 4 7 u F
C120
47
R179
10K
R196
FULL SPEC
D0-_HDMI3
CK+_HDMI1
CK-_HDMI1
D0-_HDMI1
D2-_HDMI2
D0+_HDMI2
CK-_HDMI3
D2+_HDMI3
D2+_HDMI2
D1-_HDMI3
D2+_HDMI1
D1-_HDMI1
D2-_HDMI3
D0+_HDMI3
D1+_HDMI3
D1+_HDMI2
CK-_HDMI2
D1+_HDMI1
D0+_HDMI1
D0-_HDMI2
CK+_HDMI2
D2-_HDMI1
D1-_HDMI2
CK+_HDMI3
DDC_SCL_1
DDC_SDA_1
HPD1
SC1_ID
100
R197
+5V_SYS
2SA1504S
Q100
E
B
C
+3.3V_VDDP_ST
1K
R10
10K
R14
10K
R11
KDS226
D100
A
AC
C
0
R18
0
R17
OPT
47uF
16V
C174
12MHz
X101
1M
R21
RTC_INT
RTC_INT
0
RTC
R20
0
R22
+3.3V_EXPANDER
10K
R23 OPT
10K
R25
FOR HD
10K
R26
OPT
10K
R24
FULL-HD
ROM_RX
ROM_TX
TU_SLEEP_MODE
CE6355_RESET_N
XC5000_RESET_N
3216
4 . 7 u F
16V
C144
4 . 7 u F
16V
C148
10uF
6.3V
6.3V
C172
10uF
6.3V
6.3V
C171
100
R30
RL_ON
22
R32
22
R34
100
R199
0 . 1 u F
C177
0 . 1 u F
C178
10
R31
33K
R159
0
R191
KDS181
D101
+3.3V_VDDP_ST
4 . 7 u F
10V
C179
+3.3V_VDDP_ST
100
R35
470
R184
FULL SPEC
470
R167
470
R162
FULL SPEC
1nF
C109
FULL SPEC
1nF
C131
FULL SPEC
1nF
C113
LED_GRE
AT24C512BN-SH25-T
IC110
3
NC
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
4.7K
R36
SDA_SUB/AMP
4.7K
R120
SCL_SUB/AMP
4.7K
R121
+3.3V_CI
+3.3V_CI
4.7K
R39
SCL_GREENEYE
4.7K
R38
SDA_GREENEYE
0
R40
GREENEYE_CTRL
0.1uF
C180
22
R143
20pF
C175
20pF
C176
20pF
C161
20pF
C162
LGE40RC-LF
IC109
1
GPIO32
2
GPIO33
3
GPIO34
4
GPIO35
5
GND_1
6
VDDP
7
GND_2
8
VDDC
9
GPIO36
10
GPIO37
11
GPIO38
12
GPIO39
1
3
GPIO00
1
4
GPIO01
1
5
GPIO02
1
6
GPIO03
1
7
GPIO04
1
8
GPIO05
1
9
GPIO06
2
0
GPIO07
2
1
GPIO08
2
2
GPIO09
2
3
GPIO10
2
4
GPIO11
25
GPIO12
26
GPIO13
27
GPIO14
28
GPIO15
29
HWRESET
30
XIN
31
I2C_SDA
32
I2C_SCL
33
GPIO16
34
GPIO17
35
GPIO18
36
GPIO19
37
GPIO20
38
GPIO21
39
GPIO22
40
GPIO23
41
GPIO24
42
GPIO25
43
GPIO26
44
GPIO27
45
GPIO28
46
GPIO29
47
GPIO30
48
GPIO31
MSD237HFG(SATURN4 NO-SD HD DIVX)
IC100
GPIO148
U2
GPIO147
T2
GPIO146
P4
GPIO145
P3
GPIO144
N6
GPIO16
F3
GPIO14
E9
GPIO4
V11
GPIO3
V10
RXA0N
H2
RXA0P
H1
RXA1N
J 2
RXA1P
J 1
RXA2N
K2
RXA2P
K1
RXACKN
G2
RXACKP
G1
RXB0N
D2
RXB0P
D1
RXB1N
E2
RXB1P
E1
RXB2N
F2
RXB2P
F1
RXBCKN
C2
RXBCKP
C1
RXC0N
W9
RXC0P
Y9
RXC1N
W10
RXC1P
Y10
RXC2N
W11
RXC2P
Y11
RXCCKN
W8
RXCCKP
Y8
VCLAMP
G4
REXT
F5
REFM
G6
REFP
G5
RIN0M
L1
RIN0P
L2
GIN0M
M1
GIN0P
M2
BIN0M
N1
BIN0P
N2
SOGIN0
J 5
HSYNC0
L7
VSYNC0
M7
RIN1P
H6
GIN1P
H5
BIN1P
H3
SOGIN1
H4
HSYNC1
G7
VSYNC1
G8
RIN2P
L6
GIN2P
L4
BIN2P
L3
SOGIN2
L5
HSYNC2
K5
VSYNC2
K6
VCOM1
R1
VCOM0
R2
CVBS7
K4
CVBS6
J 4
CVBS5
K3
CVBS4
J 3
CVBS3
M3
CVBS2
P1
CVBS1
M4
CVBS0
P2
CVBSOUT
T1
DREXT
M16
DACSVM
N16
AUVRM
N5
AUVRP
N4
AUVAG
U3
AUCOM
V2
AUL0
P5
AUR0
P6
AUL1
R3
AUR1
R4
AUL2
Y3
AUR2
Y4
AUL3
R5
AUR3
R6
AUL4
T3
AUR4
T4
AUL5
T5
AUR5
T6
AUOUTL0
Y6
AUOUTR0
W4
AUOUTL1
V3
AUOUTR1
U4
AUOUTL2
Y5
AUOUTR2
W3
PWM5
R15
PWM4
T15
PWM3
U16
PWM2
T16
PWM1
P16
PWM0
R16
SAR5
V16
SAR4
V15
SAR3
U15
SAR2
V14
SAR1
Y12
SAR0
W12
I2S_OUT_MCK
E16
I3S_OUT_BCK
E12
I4S_OUT_WS
F16
I5S_OUT_SD
E11
I6S_OUT_MUTE
E10
SPDIFO
E14
I2S_IN_BCK
G16
I3S_IN_WS
H16
I4S_IN_SD
G15
SPDIFI
F15
SCK
Y13
SDI
W13
SDO
Y14
SCZ
W14
IRIN
M18
INT
L18
USB_DM_P0
A2
USB_DP_P0
A1
USB_DM_P1
B2
USB_DP_P1
B1
USB_CID_P1
E7
USB_VBUS_P1
E8
TAGC
M5
VR27
M6
VR12
N3
SIFM
W2
SIFP
Y2
VIFM
W1
VIFP
Y1
DDCA_SDA
P15
DDCA_SCL
P14
DDCDA_SDA
F6
DDCDA_SCL
G3
DDCDB_SDA
E4
DDCDB_SCL
E6
DDCDC_SDA
T14
DDCDC_SCL
R14
DDCR_SDA
Y15
DDCR_SCL
W15
HOTPLUGA
F4
HOTPLUDB
E5
HOTPLUDC
N15
CEC
E3
HWRESET
U14
XIN
V1
XOUT
U1
MSD237HFG(SATURN4 NO-HD DIVX)
IC100-*1
GPIO148
U2
GPIO147
T2
GPIO146
P4
GPIO145
P3
GPIO144
N6
GPIO16
F3
GPIO14
E9
GPIO4
V11
GPIO3
V10
RXA0N
H2
RXA0P
H1
RXA1N
J 2
RXA1P
J 1
RXA2N
K2
RXA2P
K1
RXACKN
G2
RXACKP
G1
RXB0N
D2
RXB0P
D1
RXB1N
E2
RXB1P
E1
RXB2N
F2
RXB2P
F1
RXBCKN
C2
RXBCKP
C1
RXC0N
W9
RXC0P
Y9
RXC1N
W10
RXC1P
Y10
RXC2N
W11
RXC2P
Y11
RXCCKN
W8
RXCCKP
Y8
VCLAMP
G4
REXT
F5
REFM
G6
REFP
G5
RIN0M
L1
RIN0P
L2
GIN0M
M1
GIN0P
M2
BIN0M
N1
BIN0P
N2
SOGIN0
J 5
HSYNC0
L7
VSYNC0
M7
RIN1P
H6
GIN1P
H5
BIN1P
H3
SOGIN1
H4
HSYNC1
G7
VSYNC1
G8
RIN2P
L6
GIN2P
L4
BIN2P
L3
SOGIN2
L5
HSYNC2
K5
VSYNC2
K6
VCOM1
R1
VCOM0
R2
CVBS7
K4
CVBS6
J 4
CVBS5
K3
CVBS4
J 3
CVBS3
M3
CVBS2
P1
CVBS1
M4
CVBS0
P2
CVBSOUT
T1
DREXT
M16
DACSVM
N16
AUVRM
N5
AUVRP
N4
AUVAG
U3
AUCOM
V2
AUL0
P5
AUR0
P6
AUL1
R3
AUR1
R4
AUL2
Y3
AUR2
Y4
AUL3
R5
AUR3
R6
AUL4
T3
AUR4
T4
AUL5
T5
AUR5
T6
AUOUTL0
Y6
AUOUTR0
W4
AUOUTL1
V3
AUOUTR1
U4
AUOUTL2
Y5
AUOUTR2
W3
PWM5
R15
PWM4
T15
PWM3
U16
PWM2
T16
PWM1
P16
PWM0
R16
SAR5
V16
SAR4
V15
SAR3
U15
SAR2
V14
SAR1
Y12
SAR0
W12
I2S_OUT_MCK
E16
I3S_OUT_BCK
E12
I4S_OUT_WS
F16
I5S_OUT_SD
E11
I6S_OUT_MUTE
E10
SPDIFO
E14
I2S_IN_BCK
G16
I3S_IN_WS
H16
I4S_IN_SD
G15
SPDIFI
F15
SCK
Y13
SDI
W13
SDO
Y14
SCZ
W14
IRIN
M18
INT
L18
USB_DM_P0
A2
USB_DP_P0
A1
USB_DM_P1
B2
USB_DP_P1
B1
USB_CID_P1
E7
USB_VBUS_P1
E8
TAGC
M5
VR27
M6
VR12
N3
SIFM
W2
SIFP
Y2
VIFM
W1
VIFP
Y1
DDCA_SDA
P15
DDCA_SCL
P14
DDCDA_SDA
F6
DDCDA_SCL
G3
DDCDB_SDA
E4
DDCDB_SCL
E6
DDCDC_SDA
T14
DDCDC_SCL
R14
DDCR_SDA
Y15
DDCR_SCL
W15
HOTPLUGA
F4
HOTPLUDB
E5
HOTPLUDC
N15
CEC
E3
HWRESET
U14
XIN
V1
XOUT
U1
2 . 2 u F
16V
C132
2 . 2 u F
16V
C133
2 . 2 u F
16V
C139
FULL SPEC
2 . 2 u F
16V
C141
FULL SPEC
2 . 2 u F
16V
C135
2 . 2 u F
16V
C136
FULL SPEC
2 . 2 u F
16V
C140
FULL SPEC
2 . 2 u F
16V
C134
2 . 2 u F
16V
C137
FULL SPEC
2 . 2 u F
16V
C138
FULL SPEC
10uF
16V
16V
C173
47K
R105
22
R137
MX25L12805DMI-20G
IC103
3
NC_1
2
VCC
4
NC_2
1
HOLD
6
NC_4
5
NC_3
7
CS
8
SO
9
WP/ACC
10
GND
11
NC_5
12
NC_6
13
NC_7
14
NC_8
15
S I
16
SCLK
//BOOTSTRAP PWM[1:0]=10
EEPROM
VIDEO IN
AUDIO
I 2 S
FLASH
HDMI
2 0 0 9 . 0 4 . 1 5
MAIN_1
1
11
IC105: EAN43349001(STM)
I/0 EXPANSION
HDCP EEPROM
* M s t a r r e s e t : A c t i v e h i g h r e s e t
VOLTAGE DETECTOR
ACTIVE LOW
F l a s h m e m o r y C S / W P p u l l - u p R e s i s t o r R e a d y ( 4 . 7 K ) _ 0 8 0 4 0 2
EAX57566204
HDMI3
SIDE HDMI
HDMI1
HDMI2
16M FLASH MEMORY
K5:CVBS OUT2 REV2‘
S w a p p o r t T X , R X
S h o u l d b e o n t o p s i d e o f P C B b e c a s e o f d e b u g g i n g
GPIO15: XOUT
1.MSG1040C --> MSG1040RC
3 . G P I O : 4 0 p c s - - > 3 9 p c s
4.GPIO0: RTC_INT
5.GPIO15: XOUT
5.GPIO15: XOUT
2 . P W M i s D e l e t e d & R T C i s a d d e d
REVISION
P W M p i n d e l e t e
READY FOR H/W OPTION
0 8 . 0 7 . 1 0
U p d a t e d 0 8 . 0 7 . 1 0
O C D I S O P T T I O N . ( s e e t h e s h e e t 6 )
B e c a u s e O C D f u n c t i o n o f I C i s a u t o m a t i c a l l y o p e r a t e d .
O C D I S O P T T I O N . ( s e e t h e s h e e t 6 )
A_IIC EXCEPT TO CHIPTUNER
MSTAR REQUEST 32.768K READY is OUT over SPEC
0 8 . 0 9 . 1 2
TO POWER B/D(RL_ON)
N e e d t o c h e c k R T C _ I N T
Click on the first or last page to see other 50PS2000-ZB (CHASSIS:PD92A) service manuals if exist.