LG 26LD350 Service Manual page 29

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
WIRELESS READY MODEL
Wireless power
+24V
R2604
C2601
C2602
22K
0.1uF
2.2uF
50V
S
G
R2605
Q2602
27K WIRELESS
D WIRELESS_DETECT
AO3407A
R2607
WIRELESS
0
R2603 C WIRELESS_SCL
10K
WIRELESS_PWR_EN 1/4W
B WIRELESS_SDA
3216
Q2601
WIRELESS
C2603
WIRELESS
E
0.01uF
50V
WIRELESS_RX
WIRELESS_TX
+3.5V_ST +3.3V_Normal
OPT
OPT
0 R2608
R2618 R2606
0
0
IC2601
WIRELESS
MC14053BDR2G
0
R2601
WIRELESS_DL_RX
Y1 VDD
1 16
WIRELESS_TX
C2604
OPT OPT
Y0 Y S7_TXD1 0.1uF
2 15
S7_TXD
Z1 X
S7_RXD1
3 14
R2615 0
WIRELESS_DL_TX
Z X1
WIRELESS
4 13
WIRELESS_RX
R2619
0 +3.5V_ST
Z0 X0
5 12
S7_RXD
INH A
6 11
R2620 VEE B
0
7 10
WIRELESS
VSS C
8 9
JK2601
KJA-PH-3-0168
VCC[24V/20V/17V]_1
1
VCC[24V/20V/17V]_2
2
VCC[24V/20V/17V]_3
WIRELESS_PWR_EN
3
VCC[24V/20V/17V]_4
4
VCC[24V/20V/17V]_5
5
VCC[24V/20V/17V]_6
6
DETECT
+3.3V_Normal
7
INTERRUPT
8
TP2601
R2612 GND_1
9
10K
RESET
10
TP2602
R2617 1K
GND_2
11
I2C_SCL
12
AMP_SDA
I2C_SDA
13
GND_3
14
UART_RX
15
UART_TX
16
AMP_SCL
GND_4
17
IR
18
IR_PASS
GND_5
19
GND_6
20
21
SHIELD
RS232C & Wireless
WIRELESS_SW_CTRL SELECT PIN
HIGH X1/Y1/Z1 WIRELESS Dongle connect --> WIRELESS RS232
LOW X0/Y0/Z0 WIRELESS Dongle Dis_con --> S7 RS232
WIRELESS_SW_CTRL
Ver. 1.2 --> 1.3: wireless opt change, 090818, hongsu
From wireless_I2C to micom I2C
OPT
+3.3V_Normal
R2602
10K
OPT
OPT
OPT
WIRELESS_SDA
Q2604
FDV301N
OPT
WIRELESS_SCL
Q2605
FDV301N
WIRELESS
R2611 0
R2613 0
WIRELESS
STATUS
GP2_Saturn7M
Wireless ready
Ver. 1.3
12
LGE Internal Use Only