LG 27GL850 Service Manual page 26

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.
THERMAL
RAC34057401
S5
C300 0.1uF 16V
AR204
33
R250 0
RAC34057401
S3
C303 0.1uF 16V
R291
33
R202
10K
R236 0
C276 0.1uF 16V
RAC34057401
S1
R290 33
JP210
RAC34057401
S4
C307 0.1uF 16V
R288
33
HDMI_5V
RAC34057401
S2
AUD_LRCK
AR201
33
C264
1000pF
50V
HDMI_RX0-
R296 0
C302 0.1uF 16V
R287 33
BOOT4
C265
1000pF
50V
C203
10uF
10V
OPT
R235 0
AUD_DATA
DP_RX0N
HDMI_RX1+
R297 0
R242
200K
HDMI_HPD
R247 0
AUD_SCK
BUZZER_PWM
+5V_STANDBY
R248 0
R254
33
+5V_STANDBY
HDMI_RXC+
R249 0
R203
10K
OPT
R256
33
BUZZER
+1.15V_VDD
R257
1K
BUZZER
DP_RX2N
R229 10
BU200
PKM13EPY-4002-B0
BUZZER
1
2
R233
10K
AR202
33
DP_AUXP
BOOT3
Q205
2N3904S
BUZZER
E
B
C
R259
0
R270
0
OPT
+1.15V_VDD
R258
0
OPT
IR
BOOT1
+3.3V_NORMAL
R269
0
IR
R255
33
JP202
SYS_EEPROM_SCL
WLED_ENABLE
C282 0.1uF 16V
R262
4.7K
SYS_EEPROM_WP
AR203
10K
+5V_STANDBY
BOOT2
D200
BAT54C_TSC
A2
C
A1
R260
10K
VDDP
AVDDL_PREDRV
ZD200
WP_SPI
X200
12MHz
HP_DET
SDI
SYS_EEPROM_SDA
R206
10K
C212
1uF
10V
walkie-talkie
R208
10K
OPT
C221
1uF
10V
walkie-talkie
R251
4.7K
+3.3V_NORMAL
DP_RX3P
BUZZER_PWM
+3.3V_NORMAL
R263 0
AVDD_AUDIO
+3.3V_NORMAL
AVDD_MOD
R264 0 BUZZER
C294
10uF
10V
L200
HDMI2_5V_SEL
5V_ST_ON
C278 0.1uF 16V
HDMI1_5V_SEL
WLED_PDIM
+3.3V_HP_AMP
HDMI2_5V_SEL
SCK
DP_DET
DP_RX1P
R220
4.7K
R211 1K
AR208
10K
OPT
C280 0.1uF 16V
R217
4.7K
IC202
GD25Q16CSIGY
3
WP#
2
SO
4
VSS
1
CS#
5
SI
6
SCLK
7
HOLD#
8
VCC
+3.3V_NORMAL
HP_SCL
HDMI1_5V_SEL
R221
4.7K
R238
10K
OPT
AR210 33
HDMI_SCL
IC201
BR24G32FJ-3AGTE2
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
10K
R239
HP_SDA
HDMI_SDA
C266
0.1uF
16V
AR209
10K
HDMI1_5V
JP203
+3.3V_NORMAL
C277 0.1uF 16V
R214
3.3K
AUD_MCLK
CS
R240 33
OPT
R227
4.7K
R241 33
OPT
+1.15V_VDD
SDO
R209
10
AVDDL_MOD
C205
1uF
10V
PD_CTL
AVDDL_MOD
+1.15V_VDD
HOLD
C267
0.1uF
16V
C204
1uF
10V
DP_RX2P
HDMI2_5V
R218
4.7K
AVDD_DP
HDMI_RX0+
DP_RX0P
R231 1K
AVDDL_PREDRV
AVDD_ADC
VDDP
R261
10K
AVDD_MOD
C281 0.1uF 16V
VR202
18V
10pF
P200
12507WR-08L
1
2
3
4
5
6
7
8
9
Q200
2N3904S
E
B
C
R226
4.7K
Q203
KMA3D7P20SA
KEC
G
HDMI_RX2+
R225
10
Q201
KMA3D7P20SA
KEC
G
R213
3.3K
Q203-*1
AO3435
ALPHA AND OMEGA
G
JP201
Q204
2N3904S
E
B
C
Q201-*1
AO3435
ALPHA AND OMEGA
G
Q202
2N3904S
E
B
C
R228
4.7K
OPT
C259
18pF
50V
HDMI_RX2-
C279 0.1uF 16V
L202
BLM15PX121SN1
OPT
C260
18pF
50V
C263
10uF
10V
R232
100K
IR
IC200
MST9U36RQ1
1
SAR10/GPIO_X10
2
CABLE5V1/GPIO_X11
3
DDCD3_CK/GPIO_X13
4
DDCD3_DA/GPIO_X14
5
VDDP_1
6
GND_1
7
VDD_1
8
HPD1/GPIO_X12
9
HRX0_CN
10
HRX0_CP
11
AVDD_HRX0
12
HRX0_0N
13
HRX0_0P
14
GND_2
15
HRX0_1N
16
HRX0_1P
17
AVDDL_HRX0_1
18
AVDDL_HRX0_2
19
HRX0_2N
20
HRX0_2P
21
GND_3
22
AVDD_DP
23
DPRX_0P
24
DPRX_0N
25
GND_4
26
DPRX_1P
27
DPRX_1N
28
AVDDL_DP
29
DPRX_2P
30
DPRX_2N
31
GND_5
32
DPRX_3P
33
DPRX_3N
34
AUXN
35
AUXP
36
NC_1
37
NC_2
38
NC_3
39
VDD_2
40
GND_6
41
GND_7
42
GND_8
43
AVDD_ADC
44
BIN0M
45
BIN0P
46
GIN0M
47
GIN0P
48
SOGIN0
49
RIN0M
50
RIN0P
51
HSYNC0
52
VSYNC0
53
AVDD_AUDIO_1
54
LINEIN_L0
55
LINEIN_R0
56
VRM_ADC
57
VAG
58
LINEOUT_L0
59
LINEOUT_R0
60
GND_9
61
EAROUT_L
62
EAROUT_R
63
AVDD_AUDIO_2
64
SPDIFO/GPIO_A8
129
LVD2M
130
LVD2P
131
LVD1M
132
LVD1P
133
LVD0M
134
LVD0P
135
AVDD_MOD_2
136
AVDDL_PREDRV_2
137
GND_18
138
AVDDL_MOD_2
139
LVC4M
140
LVC4P
141
LVC3M
142
LVC3P
143
LVCCKM/VBY1_7+/EDP7-
144
LVCCKP/VBY1_7-/EDP7+
145
LVC2M/VBY1_6+/EDP6-
146
LVC2P/VBY1_6-/EDP6+
147
LVC1M/VBY1_5+/EDP5-
148
LVC1P/VBY1_5-/EDP5+
149
LVC0M/VBY1_4+/EDP4-
150
LVC0P/VBY1_4-/EDP4+
151
VDD_6
152
AVDD_LPLL
153
GND_19
154
LVB4M/VBY1_3+/EDP3-
155
LVB4P/VBY1_3-/EDP3+
156
LVB3M/VBY1_2+/EDP2-
157
LVB3P/VBY1_2-/EDP2+
158
LVBCKM/VBY1_1+/EDP1-
159
LVBCKP/VBY1_1-/EDP1+
160
LVB2M/VBY1_0+/EDP0-
161
LVB2P/VBY1_0-/EDP0+
162
LVB1M
163
LVB1P
164
LVB0M
165
LVB0P
166
GND_20
167
AVDDL_MOD_3
168
GND_21
169
AVDDL_PREDRV_3
170
AVDD_MOD_3
171
LVA4M
172
LVA4P
173
LVA3M
174
LVA3P
175
LVACKM
176
LVACKP
177
LVA2M
178
LVA2P
179
LVA1M
180
LVA1P
181
LVA0M
182
LVA0P
183
VDD
184
AUXTXN0
185
AUXTXP0
186
AUXTXN1
187
AUXTXP1
188
AUXTXN2
189
AUXTXP2
190
AUXTXN3
191
AUXTXP3
192
VDDP_3
257
R205
10K
OPT
JP204
C262
0.1uF
16V
OPT
KEY2
C201
68pF
50V
OPT
HDMI_RX1-
HP_MUTE
JP208
+3.3V_NORMAL
VR201
18V
10pF
DP_RX1N
R204
100
IR
DP_RX3N
SYS_EEPROM_WP
JP207
C292
68pF
50V
OPT
HDMI_RXC-
KEY1
HDMI_5V
WLED_ADIM
+3.3V_NORMAL
C293
68pF
50V
OPT
+5V_STANDBY
C283 0.1uF 16V
C290
68pF
50V
OPT
PD_CTL_DDR
C200
1uF
10V
C291
68pF
50V
OPT
VDDP
JP206
JP205
R246 10
VR203
18V
OPT
10pF
DP_AUXN
AVDDL_DP
R216
10
R245
10
CONTROL_LED
EDP1_TX0N
R215
0
P202
12507WS-04L
DE_BUG
1
2
3
4
5
HDMI2_DET
+3.3V_NORMAL
C306 0.1uF 16V
AR207
10K
R234
33
R201
10K
AR200 33
DE_BUG
C304 0.1uF 16V
R212
10
IR
C301 0.1uF 16V
R243
200K
AVDDL_HRX0
R200
10K
OPT
EDP1_TX0P
R207
10K
C202
0.47uF
50V
AVDD_HRX0
C305 0.1uF 16V
USB_HUB_SCL
AR211
33
USB_HUB_SDA
USB_HUB_RESET
VBUS_UP
R222 0 OPT
R268
10K
OPT
R271
10K
OPT
+3.3V_NORMAL
AMP_nMUTE
AMP_RESET
R279 10
EDP1_TX1N
EDP1_TX1P
EDP1_TX2N
EDP1_TX3N
EDP1_TX3P
EDP1_TX2P
EDP2_TX0N
EDP2_TX1N
EDP2_TX1P
EDP2_TX2N
EDP2_TX3N
EDP2_TX3P
EDP2_TX2P
EDP2_TX0P
WPN_CONTROL
R280 0
OPT
EDP1_AUXN
EDP1_AUXP
C247 0.1uF 16V
C244 0.1uF 16V
EDP2_AUXN
EDP2_AUXP
C238 0.1uF 16V
C229 0.1uF 16V
PANEL_VCOM_SCL
R281 10
OPT
NXP_SCALER_SCL
NXP_SCALER_SDA
+3.3V_NORMAL
R144
2.2K
OPT
R145
2.2K
OPT
JP213
R298
100K
OPT
C299
4.7uF
25V
R299
100K
OPT
C321
4.7uF
25V
OPT
R301
10K
R300
47K
R304
47K
EDP2_HPD
R302
100K
OPT
R303
100K
OPT
EDP1_HPD
+10V_PANEL
P203
20525-060E-01
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
EDP2_HPD
EDP1_HPD
EDP1_AUXN
EDP1_AUXP
EDP1_TX0P
EDP1_TX0N
EDP1_TX1P
EDP1_TX1N
EDP1_TX2P
EDP1_TX2N
EDP1_TX3P
EDP1_TX3N
EDP2_TX1P
EDP2_TX1N
EDP2_TX2P
EDP2_TX2N
EDP2_TX3P
EDP2_TX3N
EDP2_TX0P
EDP2_TX0N
EDP2_AUXN
EDP2_AUXP
R305 0 OPT
R306 0 OPT
R307 0 OPT
R308 0 OPT
+3.3V_NORMAL
+3.3V_NORMAL
R309
0
OPT
R310
0
OPT
2 8 MAIN IC / Key
2017.04.13 32GK850F
H
GPIO44
SYSTEM
EEPROM
FLASH MEMORY
SYSTEM EEPROM
FLAH
16MBIT
CRYSTAL
SOLDER PRE-FORM
Close to IC
SBUS
IIC for Debugging
(from MP, delete this parts)
H
20170211 K.B.W
Crystal matching test
15pF->18pF
RESET
Joystick Key
BEEP
UZZER
BOOT-STRAP
Ready for IR/3.3V amp on
H
GPIO43
GPIO45
L
EXT RIU
GPIO44
L
L
H
FUNCTION
H
GPIO45
H L
GPIO42
L BOOT from R2
L
L
GPIO42
L
L
GPIO43
BOOT from 51
L
AMP_I2C ready
2017.03.24 HK Cho
2017.03.27
WPN :
wirte protection mode select
LCD PANEL e-DP