LG 27BK67U Service Manual page 23

+5V_STANDBY
JOYESTICK KEY
L201
BLM15PX121SN1
WHITE LED OPTION
OPT
L202
P200
BLM15PX121SN1
RED LED OPTION
12507WR-08L
1
R204 R225
3.3K 3.3K
R227
JP200
10
2
R228
JP203
10
3
ZD200 C207 C210
JP204 5.6V
1uF 1uF
4 10V
10V
JP205
5
Q204
C 2N3904S
C200
1uF VA202
JP206 OPT OPT
OPT
10V 10pF VA203 B
6 VA200
18V C201
10pF 10pF
68pF
18V
18V VA201 50V
10pF
E
18V
7
IR
R276
100
8
IR
IR
R226
9 0
JP208
+3.3V_NORMAL
JP207
FLASH MEMORY
IC202
+3.3V_NORMAL
GD25Q16CSIGY
C266
AR201 0.1uF
16V
33
CS# VCC
1 8
CS
R261
SDO
10K
SO HOLD#
FLAH
2 7
HOLD
16MBIT
R254
33
WP# SCLK
3 6 AR204
WP_SPI
33
R251 VSS SI
4.7K 4 5
OPT OPT
C290 C291
68pF 68pF
50V 50V
SYSTEM EEPROM
FE2P +3.3V_NORMAL
C267
0.1uF
16V
FE2P
IC201
FT24C32A-USR-T
FE2P
FE2P
AR200
R260
A0 VCC 10K 10K
1 8
FE2P
R255
33
A1 WP
OPT
2 7
SYSTEM AR206
33
EEPROM
FE2P
A2 SCL
AR202
3 6
33
GND SDA
4 5
OPT
AR205
OPT OPT
33
C292 C293
68pF 68pF
50V 50V
CRYSTAL
BOOT-STRAP
+3.3V_NORMAL
X200
12MHz
OPT OPT
R200 R202 R205 R207
10K 10K 10K 10K
C260
BOOT1 GPIO42 15pF
50V
BOOT2 GPIO43
BOOT3 GPIO44
BOOT4 GPIO45
R229
4.7K
OPT OPT
HDMI2_5V_SEL
R201 R203 R206 R208
10K 10K 10K 10K
HDMI1_5V_SEL
R240
4.7K
GPIO45 GPIO44 GPIO43 GPIO42 FUNCTION
L L H H BOOT from 51
L H L L
SBUS
L H L H BOOT from R2
H L L L EXT RIU
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
+3.3V_NORMAL
KEY1
KEY2
OPT
R237
4.7K
R236
4.7K
CONTROL_LED
OPT
R235
4.7K
HDMI_5V
R209
10
R232
C262
100K
0.1uF
16V
20141112 Request from MSTAR
R231 1K GPIO_X10/SAR10
HDMI2_DET
GPIO_X11/CABLE5V1
AR211 33
GPIO_X13/DDCD3_CK/RS232_RX
HDMI_SCL
GPIO_X14/DDCD3_DA/RS232_TX
HDMI_SDA
VDDP_1
VDDP
GND_1
+1.15V_VDD
VDD_1
GPIO_X12/HPD1
HDMI_HPD
HRX0_CN
HDMI_RXC-
HRX0_CP
HDMI_RXC+
AVDD_HRX0
AVDD_HRX0
HRX0_0N
HDMI_RX0-
HRX0_0P
HDMI_RX0+
GND_2
HRX0_1N
HDMI_RX1-
HRX0_1P
HDMI_RX1+
AVDDL_HRX0_1
AVDDL_HRX0_2
AVDDL_HRX0
HRX0_2N
SCK HDMI_RX2-
HRX0_2P
SDI
HDMI_RX2+
GND_3
AVDD_DP
AVDD_DP
DP_RX0P
DP0_RX0P
DP_RX0N
DP0_RX0N
GND_4
DP_RX1P
DP0_RX1P
DP_RX1N
DP0_RX1N
AVDDL_DP
AVDDL_DP
DP_RX2P
DP0_RX2P
DP_RX2N
DP0_RX2N
GND_5
DP_RX3P
DP0_RX3P
DP_RX3N
DP0_RX3N
AUXN
DP0_AUXN
AUXP
DP0_AUXP
NC_1
NC_2
NC_3
VDD_2
+1.15V_VDD
GND_6
GND_7
SYS_EEPROM_WP
GND_8
AVDD_ADC
AVDD_ADC
BIN0M
USB HUB Device address
BIN0P
Write : 10001000b (0x88)
Read
; 10001001b (0x89) GIN0M
GIN0P
SOGIN0
Audio AMP Device address
AMP_SCL RIN0M
Write : 11100110b (0xE6)
AMP_SDA Read RIN0P
; 11100111b (0xE7)
AVDD_AUDIO
SYS_EEPROM_SCL HSYNC0
VSYNC0
SYS_EEPROM_SDA
AVDD_AUDIO_1
LINEIN_L0
USB_PD_SCL
LINEIN_R0
L200
USB_PD_SDA
BLM15PX121SN1 VRM_ADC
C263
VAG
Close to IC 10uF
LINEOUT_L0
10V
LINEOUT_R0
R242 C264
1000pF
GND_9
200K 50V R243 C265
1000pF
EAROUT_L
200K 50V
EAROUT_R
AVDD_AUDIO_2
GPIO_A8/SPDIFO
HP_LOUT_MAIN
HP_ROUT_MAIN
R293
0
HP_DET
OPT
R245
0
OPT
C206
C259
22pF A_GND
15pF
50V
50V
AUD_MCLK
AUD_LRCK
AUD_DATA
AUD_SCK
R250 0
HP_MUTE
NXP_SCALER_SCL
NXP_SCALER_SDA
SOLDER PRE-FORM
RESET
S1
OPT RAC34057401
R244
2.2K +3.3V_NORMAL
S2
OPT
RAC34057401
R213
2.2K
C294
+3.3V_NORMAL S3
10uF
RAC34057401
10V
S4
C202
RAC34057401 0.47uF
16V
S5
RAC34057401
20151202
+3.3V_NORMAL
C_DET -> USBPD_EN
AR210
10K
R264 R210
10 10
SPEAKER
R296
10K
R230
+3.3V_NORMAL
1K
USB-C Signal
C_DET
ALT_MOD_DET
USBPD_AMSEL
R216
0
Remove R271(0)
1
2
THERMAL
3 257
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
MST9U35Q1_HDR
19
20
IC200
21
22
23
MST9U35Q1
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SAR10/GPIO_X10
1
CABLE5V1/GPIO_X11 2 THERMAL
DDCD3_CK/GPIO_X13 3 257
41 DDCD3_DA/GPIO_X14
4
VDDP_1 5
GND_1 6
42 VDD_1
7
HPD1/GPIO_X12 8
HRX0_CN 9
HRX0_CP
43 10
AVDD_HRX0 11
HRX0_0N 12
HRX0_0P
44 13
GND_2 14
HRX0_1N
15
HRX0_1P 16
45 AVDDL_HRX0_1 17
AVDDL_HRX0_2
18 MST9U10Q1_NON_HDR
HRX0_2N 19
46 HRX0_2P 20
GND_3 IC200-*1
21
AVDD_DP 22
DPRX_0P 23
47 DPRX_0N
24 MST9U10Q1
GND_4 25
DPRX_1P 26
48 DPRX_1N
27
AVDDL_DP 28
DPRX_2P
29
49 DPRX_2N 30
GND_5 31
DPRX_3P
32
50 DPRX_3N 33
AUXN 34
AUXP
35
NC_1 36
51 NC_2 37
NC_3
38
VDD_2 39
52 GND_6 40
GND_7
41
GND_8 42
AVDD_ADC
53 43
BIN0M 44
BIN0P 45
GIN0M
54 46
GIN0P 47
SOGIN0 48
RIN0M
49
55 RIN0P 50
HSYNC0 51
VSYNC0
52
56 AVDD_AUDIO_1 53
LINEIN_L0 54
LINEIN_R0
55
VRM_ADC 56
57 VAG
57
LINEOUT_L0 58
LINEOUT_R0 59
58 GND_9
60
EAROUT_L 61
EAROUT_R 62
AVDD_AUDIO_2
59 63
SPDIFO/GPIO_A8 64
60
61
62
63
64
OPT
R215
R241
0
0
C204
1uF
10V
OPT
R259
100K
+5V_STANDBY
OPT
C203
R234
10uF
33
10V
R233
10K
SPEAKER AR203 AR212
AR209
33
33
33
5
4
+3.3V_NORMAL
3
OPT
OPT
2
R239 R297
R212 R238
10K
DEBUG 10K 10K 4.7K
1 OPT
AR213
OPT R214
33
R295 10K
0
12507WS-04L
PIN_ASS_E
P203
DEBUG
R211 1K
VDDP
R262
10
R268 0
R219
10
R222
C205
47K
1uF
10V
VDDP_3
192
AUXTXP3
191
AUXTXN3
190
+3.3V_NORMAL
AUXTXP2
189
AUXTXN2
188
AUXTXP1 +1.15V_VDD
187
C274
AUXTXN1 0.1uF
186
16V
AUXTXP0
185
AUXTXN0
184
VDD_7
183 C275 OPT
0.1uF R223
NC_43
182
16V 100K
NC_42
181
NC_41
180
NC_40
179
NC_39
178
NC_38
177
NC_37
176
NC_36
175
AVDD_MOD
NC_35
174
NC_34
173
AVDDL_PREDRV
NC_33
172
NC_32
171
AVDDL_MOD
AVDD_MOD_3
170
AVDDL_PREDRV_3
169
GND_21
168
AVDDL_MOD_3
167
GND_20
166
NC_31
165
NC_30
164
NC_29
163
NC_28
162
EDP_HBR2_0+ C276 0.1uF 16V
161
EDP_HBR2_0- C277 0.1uF 16V
160
EDP_HBR2_1+ C278 0.1uF 16V
159
EDP_HBR2_1- C279 0.1uF 16V
158
EDP_HBR2_2+ C280 0.1uF 16V
157
EDP_HBR2_2- C281 0.1uF 16V
156
EDP_HBR2_3+ C282 0.1uF 16V
155
EDP_HBR2_3- C283 0.1uF 16V
154
GND_19
153
VDDP_3 +1.15V_VDD
192
191 AUXTXP3 AVDD_LPLL
190 AUXTXN3
AUXTXP2 152
189
188 AUXTXN2
187 AUXTXP1 VDD_6
AUXTXN1 151
186
185 AUXTXP0
184 AUXTXN0
VDD_7 NC_27
183 150
182 NC_39
181 NC_38
NC_37 NC_26
180 149
179 NC_36
NC_35
178
177 NC_34 NC_25
176 NC_33 148
NC_32
175
174 NC_31 NC_24
173 NC_30 147
NC_29
172
171 NC_28
170 AVDD_MOD_3 NC_23
AVDDL_PREDRV_3 146
169
168 GND_21
167 AVDDL_MOD_3 NC_22
GND_20 145
166
165 NC_43
NC_42
164 NC_21
163 NC_41 144
162 NC_40
EDP_HBR2_0+
161 NC_20
160 EDP_HBR2_0- 143
159 EDP_HBR2_1+
EDP_HBR2_1-
158
157 EDP_HBR2_2+ NC_19 AVDDL_MOD
156 EDP_HBR2_2- 142
EDP_HBR2_3+
155
154 EDP_HBR2_3- NC_18
153 GND_19 141
AVDD_LPLL
152
151 VDD_6
NC_27 NC_17
150 140
149 NC_26 AVDDL_PREDRV
148 NC_25
NC_24 NC_16
147 139
146 NC_23
145 NC_22
NC_21
144 AVDDL_MOD_2
143 NC_20 138
142 NC_19 AVDD_MOD
NC_18
141 GND_18
140 NC_17 137
139 NC_16
AVDDL_MOD_2
138
137 GND_18 AVDDL_PREDRV_2
AVDDL_PREDRV_2 136
136
135 AVDD_MOD_2
134 NC_15 AVDD_MOD_2
NC_14
133 135
132 NC_13
131 NC_12
NC_11 NC_15
130 134
129 NC_10
NC_14
133
NC_13
132
NC_12
131
NC_11
130
NC_10
129
OPT
R298
1K
OPT
+3.3V_NORMAL
R299
1K
AMP : Scaler <==> Speaker AMP
USB_PD : Scaler <==> PD // MUX
USB_HUB : Scaler <==> USB_HUB
P201
MODULE-eDP
05030HR-H30C1(G)
OPT 1
R263
0
2
3
4
5
EDP3-
R294 6
4.7K EDP3+
7
USB_DET 8
EDP2-
9
DP_DET EDP2+
5V_ST_ON
10
PD_CTL_DDR
11
SYS_EEPROM_WP
EDP1-
PANEL_ON
12
EDP1+
WLED_ADIM
13
PD_USB_POWER_ON
WLED_PDIM
14
EDP0-
WLED_ENABLE
15
PD_CTL
EDP0+
AMP_3.3V_ON
16
USBPD_POL
AMP_19V_ON 17
EDP_AUX_CHP
EDP_HPD
18
EDP_AUX_CHN
BUZZER
R256
19
0
BUZZER_PWM
20
EDP_HPD
VDDP
21
22
23
24
OPT
+10V_PANEL
R224
25
100K
26
EDP_AUX_CHP
27
EDP_AUX_CHN
OPT OPT
28
C229 C238 R266
10K
22uF 22uF
29
16V 16V
30
JP209
JP210
EDP0+
EDP0-
EDP1+
EDP1-
EDP2+
EDP2-
EDP3+
EDP3-
HDMI_5V
HDMI1_5V
Q201
OPT
SSM3J332R
R220
0
R218
4.7K
D200
BAT54C_Suzhou
C
A2
B Q200 C
HDMI1_5V_SEL
2N3904S A1
E
HDMI_5V
HDMI2_5V
OPT
R217
Q203 0
SSM3J332R
R221
4.7K
C
B Q202
HDMI2_5V_SEL
2N3904S
E
27UK850_670 2018.05.30
MAIN IC/CONTROL/eDP 2
31
HDMI_5V
10