LG 42LX6500 Service Manual page 37

IR & KEY
+3.5V_ST
+3.5V_ST
R8202
47K
R8200
22
+3.5V_ST
R8204
IR
47K
R8203
C 10K
Q8200
R8206
B
2SC3052
E 3.3K
R8205
OPT
C 47K
B
Q8201
E
2SC3052
R8201
0
OPT
RS232C
C8200 0.33uF
IC8200
MAX3232CDR
C1+
1
C8201
0.1uF
V+
2
C8202
0.1uF
C1-
3
C2+
4
C8203
0.1uF
C2-
5
V-
6
C8204
0.1uF
DOUT2
7
RIN2
8
EAN41348201
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.
All manuals and user guides at all-guides.com
+3.5V_ST
R8211 R8213
10K 10K
1% 1%
L8200
R8209
BLM18PG121SN1D
100
KEY1
R8210 L8201
BLM18PG121SN1D D8201
100
5.6V
KEY2
AMOTECH
C8206 C8207
0.1uF 0.1uF
D8200
5.6V
AMOTECH
+3.5V_ST
L8202
BLM18PG121SN1D
C8208 C8209
LED_B/LG_LOGO
0.1uF 1000pF
16V 50V
+3.3V_NORMAL
COMMERCIAL +3.5V_ST
L8203
BLM18PG121SN1D
+3.5V_ST
R8214
47K
R8207 COMMERCIAL_EU
22
R8218
IR_OUT
C8210
COMMERCIAL 47K
0.1uF
R8216 COMMERCIAL
C 10K
Q8202
B
2SC3052
E
COMMERCIAL_EU R8220
COMMERCIAL_EU C 47K
B
Q8204 E COMMERCIAL
2SC3052
COMMERCIAL
R8212
0
COMMERCIAL_US
Zener Diode is
close to wafer
WIRELESS +3.5V_ST
+3.5V_ST
R8215
47K
R8208 WIRELESS
22
R8219
IR_PASS
47K
WIRELESS
WIRELESS
R8217
C 10K
Q8203
B
2SC3052
E WIRELESS
WIRELESS
R8221
C 47K
B
Q8205 WIRELESS
E
2SC3052
WIRELESS
+3.5V_ST
C8205
0.1uF
VCC
16
GND
15
+3.5V_ST
DOUT1
14
R8222 R8223
RIN1 4.7K
4.7K
13
OPT
OPT
ROUT1
12
DIN1
11
DIN2
10
ROUT2
9
EYEQ
R8225
100 D8204
NEC_EEPROM_SCL
CDS3C05HDMI1 P8200
5.6V
12507WR-12L
C8213
1000pF
50V
OPT
1
EYEQ
R8226
100
2
NEC_EEPROM_SDA
D8205
C8214
1000pF CDS3C05HDMI1
5.6V 3
50V
OPT
4
5
6
R8227 1.5K
7
TACT_KEY OPT
C8215
0.1uF
16V 8
R8224
100
9
D8206
C8212 5.6V
100pF AMOTECH
10
50V
11
R8276
12
LED_R/BUZZ
C8211
1.5K
1000pF OPT
50V R8280 13
16V
10K
10
5
9
OPT
IR_OUT 4
R8279
0
8
R8277
100
3
7
R8278
100
2
6
D8202 D8203
CDS3C30GTH CDS3C30GTH
30V 30V 1
SPG09-DB-009
JK8201
R8273 0
BCM_RXD1
R8274 0
NEC_RXD
R8272 0
BCM_TXD1
R8275 0
NEC_TXD
ETHERNET CONNECT
A2.5V
L8204
CIC21J501NE
R8283
0
EPHY_TDP
OPT
C8218
10pF
50V
R8284
0
OPT
EPHY_TDN
C8220
R8285 10pF
0 50V
EPHY_RDP
C8216
OPT
C8221 1000pF
10pF
50V
50V
R8286
0
EPHY_RDN
OPT
C8222 C8217
10pF
50V 1000pF
D3.3V
R8281 510
EPHY_LINK
R8282 510
EPHY_ACTIVITY
Trace impedance : 100 ohm differenctial impedance to GND plane
5 mils trace width with 7 mils air gap on P/N pair.
Adjacent TX/RX differential pairs should be separated by more than
15 mils to each other
JK8200
XRJV-01V-D12-180
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9