LG Flatron 27UD68P Service Manual page 37

+5V_STANDBY
Joystick Key
L202
P200
BLM15PX121SN1
RED LED OPT
12507WR-08L
C200
1uF
1 10V
R213 R214
3.3K 3.3K
R216
JP204
10
2
KEY1
R225
JP205
10
3
KEY2
VR201
VR202
ZD200
10pF
JP206 10pF
5.6V
18V
4 18V
JP207
5
Q204
IR
C 2N3904S
R212
JP208 OPT
10 OPT B
VR203
6 C201
10pF 68pF
18V
50V
OPT
E R226
JP210
7 4.7K
IR
R204
100
8
IR
9
JP203
FLASH MEMORY
IC202
+3.3V_NORMAL
MX25L8006EM2I-12G
C266
AR201 0.1uF
16V
33
CS# VCC
1 8
CS
R261
SDO FLAH
10K
SO/SIO1 HOLD#
2 8MBIT 7
HOLD
R254
33
WP# SCLK
3 6 AR204
WP_SPI
33
SCK
R251 GND SI/SIO0
4.7K 4 5
SDI
OPT OPT
C290 C291
68pF 68pF
50V 50V
SYSTEM EEPROM
+3.3V_NORMAL
C267
0.1uF
16V
IC201
R260
AT24C32D-SSHM-T
10K
AR203
10K
A0 VCC
1 8
R255
33
A1 WP
2 7
SYSTEM
EEPROM
A2 SCL
3 6 AR202
33
GND SDA
4 5
OPT OPT
C292 C293
68pF 68pF
50V
50V
BOOT-STRAP
+3.3V_NORMAL CRYSTAL
X200
OPT OPT
12MHz
R200 R202 R205 R207
10K 10K 10K 10K
BOOT1 GPIO42
C260
15pF
BOOT2 50V
GPIO43
BOOT3 GPIO44
BOOT4 GPIO45
OPT OPT
R201 R203 R206 R208 20150116
10K 10K 10K 10K
Crystal matching test
22pF->15pF
SOLDER PRE-FORM
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
OPT
R228
4.7K
R227
4.7K
CONTROL_LED
HDMI_5V
R209
10
OPT
R232
C262
100K
0.1uF
16V
R231 1K GPIO_X10/CD_SENSE1/SAR10
1
HDMI2_DET
GPIO_X11/CABLE5V1
2
GPIO_X13/DDCD3_CK/RS232_RX
R245 10 3
HDMI_SCL
R246 10 GPIO_X14/DDCD3_DA/RS232_TX
4
HDMI_SDA
VDDP_1
VDDP 5
GND_1
6
+1.15V_VDD
VDD_1
7
GPIO_X12/HPD1/CBUS1
8
HDMI_HPD
HRX0_CN
9
HDMI_RXC-
HRX0_CP
10
HDMI_RXC+
AVDD_HRX0
AVDD_HRX0 11
HRX0_0N
12
HDMI_RX0-
HRX0_0P
13
HDMI_RX0+
GND_2
14
HRX0_1N
15
HDMI_RX1-
HRX0_1P
16
HDMI_RX1+
AVDDL_HRX0_1
17
AVDDL_HRX0_2
AVDDL_HRX0 18
HRX0_2N
19
HDMI_RX2-
HRX0_2P
20
HDMI_RX2+
GND_3
21
AVDD_DP
AVDD_DP 22
DP_RX0P
R240 0 23
DP0_RX0P
DP_RX0N
R235 0 24
DP0_RX0N
GND_4
25
DP_RX1P
R237 0 26
DP0_RX1P
DP_RX1N
R247 0 27
DP0_RX1N
AVDDL_DP
AVDDL_DP 28
DP_RX2P
R248 0 29
DP0_RX2P
DP_RX2N
R249 0 30
DP0_RX2N
GND_5
31
DP_RX3P
0
R250 32
DP0_RX3P
DP_RX3N
R236 0 33
DP0_RX3N
AUXN
34
DP0_AUXN
AUXP
35
DP0_AUXP
NC_1
36
NC_2
37
NC_3
38
VDD_2
39
+1.15V_VDD
GND_6
40
GND_7
41
GND_8
42
AVDD_ADC
AVDD_ADC 43
BIN0M
44
BIN0P
45
GIN0M
46
GIN0P
SYS_EEPROM_WP
47
SOGIN0
48
RIN0M
49
RIN0P
50
AVDD_AUDIO
HSYNC0
SYS_EEPROM_SCL 51
VSYNC0
SYS_EEPROM_SDA 52
AVDD_AUDIO_1
53
LINEIN_L0
54
LINEIN_R0
55
Close to IC L200 VRM_ADC
56
C263 VAG
57
10uF
10V LINEOUT_L0
58
LINEOUT_R0
R242 C264 59
1000pF
GND_9
200K 50V R243 C265 60
1000pF
EAROUT_L
200K 50V 61
EAROUT_R
62
AVDD_AUDIO_2
63
GPIO_A8/SPDIFO
64
HP_LOUT_MAIN
HP_ROUT_MAIN
HP_DET
C259
15pF
50V
HP_MUTE
RESET
+3.3V_NORMAL
+5V_STANDBY
S1
RAC34057401 C294
10uF
10V
S2
RAC34057401
C202
0.47uF
S3 16V
RAC34057401
S4
RAC34057401
S5
RAC34057401
IIC for Debugging
(from MP, delete this parts)
+3.3V_NORMAL
DE_BUG
AR200 33
R265 R241
10 10
THERMAL
257
IC200
MST9U11Q1(UHD Scaler)
R215
0
C204
1uF
10V
OPT
C203
10uF R234
10V 33
R233
10K
DE_BUG
P202
12507WS-04L
1
DE_BUG
2
AR207
10K
JP202
3
4
JP201 +3.3V_NORMAL
5
OPT
R238 R239
10K 10K
R211 1K
VDDP
R229 10
R219 10
R222
47K
C205 Close to scalar P193
1uF
10V VDDP
VDDP_3
192
AUXTXP3
191
AUXTXN3
190
+3.3V_NORMAL
AUXTXP2
189
AUXTXN2
188 OPT
R224
AUXTXP1 +1.15V_VDD
187 100K
C274
AUXTXN1
186 0.1uF
16V
AUXTXP0
185
AUXTXN0
184
VDD_7
183 C275 OPT
0.1uF R223
NC_39
182
16V 100K
NC_38
181
NC_37
180
NC_36
179
NC_35
178
NC_34
177
NC_33
176
NC_32
175
AVDD_MOD
NC_31
174
NC_30
173
AVDDL_PREDRV
NC_29
172
NC_28
171
AVDDL_MOD
AVDD_MOD_3
170
AVDDL_PREDRV_3
169
GND_21
168
AVDDL_MOD_3
167
GND_20
166
NC_43
165
NC_42
164
NC_41
163
NC_40
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
+1.15V_VDD
AVDD_LPLL
152
VDD_6
151
NC_27
150
NC_26
149
NC_25
148
NC_24
147
NC_23
146
NC_22
145
NC_21
144
NC_20
143
NC_19 AVDDL_MOD
142
NC_18
141
NC_17
140
AVDDL_PREDRV
NC_16
139
AVDDL_MOD_2
138
AVDD_MOD
GND_18
137
AVDDL_PREDRV_2
136
AVDD_MOD_2
135
NC_15
134
NC_14
133
NC_13
132
NC_12
131
NC_11
130
NC_10
129
HDMI1_5V_SEL
HDMI2_5V_SEL
Scalar / Key
EDP_WAFER
P201
MODULE-eDP
05030HR-H30C1(G)
1
2
3
4
5
EDP3-
6
EDP3+
7
8
EDP2-
9
DP_DET
EDP2+
5V_ST_ON
10
PD_CTL_DDR
11
SYS_EEPROM_WP EDP1-
12
EDP1+
WLED_ENABLE
13
WLED_ADIM
14
EDP0-
BUZZER_PWM
15
EDP0+
PD_CTL
16
EDP_HPD
17
EDP_AUX_CHP
18
EDP_AUX_CHN
19
20
EDP_HPD
21
22
23
24
+10V_PANEL
25
26
EDP_AUX_CHP
27
EDP_AUX_CHN
OPT
28
C229 C238 R266
10K
4.7uF 4.7uF
29
25V 25V
30
31
JP200
JP209
+5V_STANDBY
+3.3V_NORMAL
BU200
R259 PKM13EPY-4002-B0
EDP0+
R258 0
EDP0-
0
OPT
EDP1+
1
EDP1-
EDP2+
R257
1K
EDP2-
2
EDP3+ BEEP
EDP3- UZZER
C
R256
33
B Q205
BUZZER_PWM
2N3904S
E
HDMI_5V
HDMI1_5V
R253
0
Q201
AO3435
OPT
R218 G
4.7K
C
R217
4.7K B Q200
2N3904S HDMI_5V
D200
E BAT54C
A2
C
A1
HDMI_5V
HDMI2_5V
R252
0
Q203
OPT
AO3435
R221 G
4.7K
C
R220
4.7K
B Q202
2N3904S
E
27MU68 2015.06.23
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