LG 55X6500-TD Service Manual page 36

IR & KEY
+3.5V_ST
+3.5V_ST
R8202
47K
R8200
22
R8204
IR
47K
R8203
C
Q8200 10K
R8206
B
2SC3052
3.3K
E
R8205
47K
C
B
Q8201
E
2SC3052
R8201
0
OPT
RS232C
C8200 0.33uF
C1+
C8201
0.1uF
V+
C8202
0.1uF
C1-
C2+
C8203
0.1uF
C2-
V-
C8204
0.1uF
DOUT2
RIN2
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.5V_ST
R8211 R8213
10K
10K
1% 1%
L8200
R8209 BLM18PG121SN1D
100
KEY1
L8201
R8210
D8201
BLM18PG121SN1D
100
KEY2
AMOTECH
C8206 C8207
0.1uF 0.1uF
D8200
5.6V
AMOTECH
+3.5V_ST
L8202
BLM18PG121SN1D
+3.5V_ST C8208 C8209
0.1uF 1000pF
16V 50V
OPT
+3.3V_NORMAL
COMMERCIAL +3.5V_ST
+3.5V_ST
R8214
47K
R8207 COMMERCIAL_EU
22
R8218
IR_OUT
47K
COMMERCIAL
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
WIRELESS +3.5V_ST
+3.5V_ST
R8215
47K
R8208 WIRELESS
22
R8219
IR_PASS
WIRELESS 47K
R8217 WIRELESS
C 10K
Q8203
B
2SC3052
E WIRELESS
WIRELESS R8221
C 47K
B
Q8205 WIRELESS
E
2SC3052
WIRELESS
+3.5V_ST
IC8200
C8205
MAX3232CDR
0.1uF
VCC
1 16
GND
2 15
+3.5V_ST
DOUT1
3 14
R8222
RIN1 4.7K
4.7K
4 13
OPT
OPT
ROUT1
5 12
DIN1
6 11
DIN2
7 10
ROUT2
8 9
EAN41348201
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
5.6V
D8205
C8214
CDS3C05HDMI1
1000pF
5.6V 3
50V
OPT
4
5
6
R8227 1.5K
7
LED_B/LG_LOGO
TACT_KEY
R8287
10K
8
LD650/LD750
R8224
100
9
D8206
C8212 5.6V
100pF AMOTECH
10
50V
L8203
BLM18PG121SN1D
11
R8276
LED_R/BUZZ 12
C8211
C8210 1.5K
1000pF OPT
0.1uF
50V R8280 13
16V
10K
close to wafer
10
5
9
OPT
IR_OUT 4
R8279
0
R8277 8
100
3
7
R8278
100
2
6
D8202 D8203
CDS3C30GTH CDS3C30GTH
1
30V 30V
SPG09-DB-009
JK8201
R8223
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
OPT C8216
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
LGE Internal Use Only