LG 42LY750H Service Manual page 44

Ethernet PHY(RTL8201FN)/RJ45
+3.5V_ST
FET_2.5V_NXP FET_2.5V_AOS
FET_2.5V_DIODES
Q9000
Q9000-*2 Q9000-*1
DMP2130L
PMV48XP AO3435
G
R9008
R9002
1K
10K
C
B Q9003
ETNHUB_PWR_ON/OFF
RT1N141C-T112-1
E
50V
15pF
C9003-*1
Xtal_Old
50V
12pF
C9003
Xtal_matching
R9009
2.49K
1%
C9002
0.1uF
16V
LAN_AVDD33
MDI+[0] 1
MDI-[0]
2
THERMAL
NC_1
3
49
MDI+[1]
4
MDI-[1]
5
AVDD33_1 RTL8201FN
6
NC_2
7
LAN_DVDD33
NC_3
8
C9000
NC_4
0.1uF 9
16V
NC_5
10
R9001 4.7K
EN_LDO_OUT
11
TXER
12
LAN_DVDD33
C9001
0.1uF
16V
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.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LAN_AVDD33
+3.5V_ST_LAN
+3.5V_ST_LAN
L9000
BLM18PG121SN1D
C9012
0.1uF
16V
LAN_DVDD33
L9001
BLM18PG121SN1D
C9013
0.1uF
16V
50V
15pF
C9005-*1
PHY ADDRESS CONFIG
Xtal_Old
50V LAN_DVDD33
12pF CONFIG PHY_ADDRESS = 111
C9005
0
Xtal_matching
1 2
25.0MHz
R9026 R9027 R9032
X9000 4.7K 4.7K 4.7K
R9010
1M 1%
R9011
Place Closed
OPT
4.7K
C9014
C9004
0.1uF
0.1uF
16V
LAN_DVDD33
16V
LAN_DVDD33
C9007
0.1uF
16V
R9025
4.7K
CRS/CRS_DV
36
LED1/PHYAD[1]
35
LED0/PHYAD[0]
34
PMEB
33
IC9000
LED2/PHYAD[2]
32
MDIO
31
MDC
30
PHYRSTB R9030 22
29
DVDD10
28
TXEN
27
C9011
TXD[3] C9010
26
0.1uF 0.1uF
TXD[2]
25
16V 16V
LAN_DVDD33
C9008
10pF
OPT
50V
C9006
R9012 0.1uF
4.7K 16V
R9013
/RTL8201_INT
100
LAN_DVDD33
R9038
4.7K
ETHERNET_MDIO
ETHERNET_MDC
MCU PORT TO BE ASSIGNED!!
/ETHERNET_RESET
TO MCU
/RTL8201_PMEB
TO SOC/ MCU
LAN 1
(AUX LAN)
MTK pin no Status
LAN1_DET
G37 Input
ETNHUB_EPHY_TXOP1
LAN1_DET LAN1_LINK
Connected High Low
ETNHUB_EPHY_TXON1
Disconnected Low High
ETNHUB_EPHY_RXIP1
ETNHUB_EPHY_RXIN1
LAN1 Detect
ETNHUB_DVDD33
R9069
10K
R9068
100
LAN1_DET
C
TO SoC
Q9001 B
LAN1_LINK
RT1N141C-T112-1
From MICOM
E
LAN 2
MTK pin no Status
LAN2_DET
Input
G36
ETNHUB_EPHY_TXOP3
LAN2_DET LAN2_LINK
Connected High Low
ETNHUB_EPHY_TXON3
Disconnected Low High
ETNHUB_EPHY_RXIP3
ETNHUB_EPHY_RXIN3
LAN2 Detect
ETNHUB_DVDD33
R9072
R9071 10K
100
LAN2_DET
C
TO SoC
Q9002 B
LAN2_LINK
RT1N141C-T112-1
From MICOM
E
Ethernet PHY/RJ45
ETNHUB_AVDD18
JK9000
L9002
RJ45VT-01SN002
BLM18PG121SN1D
1
R9039
49.9
1% 2
C9015 R9040
49.9
0.1uF
1%
3
4
R9041
49.9
1%
5
R9042
C9016
49.9
0.1uF
1%
6
C9021
7
0.1uF
16V
8
9
9
ETNHUB_AVDD18
JK9001
L9003
RJ45VT-01SN002
BLM18PG121SN1D
1
R9051
49.9
1%
2
C9024
R9052
0.1uF 49.9
1%
3
4
R9053
49.9
1% 5
R9054
C9025
49.9
0.1uF
1% C9023
6
0.01uF
C9022
OPT
0.1uF
7
8
9
9
xxLY750H-UA 2013.12.24
19 21
LGE Internal Use Only