LG 60PK750 Service Manual page 21

RGB
+5V_VGA
P900
SPG09-DB-010
R943
RED_GND
6
GND_2
1
11
RED
GREEN_GND
7
DDC_DATA
2 12
GREEN R942
BLUE_GND
8
H_SYNC
3 13
BLUE R944
NC
9
JP1113
V_SYNC
4 14
READY FOR BEAD
GND_1
JP1112
b c m R E F c i r c u i t
SYNC_GND
10
DDC_CLOCK
5 15
+3.3V_MULTI
DDC_GND
16
SHILED
R917
READY
C914
0.1uF
16V
GND
R903
10
C905 C908
220pF 220pF
50V 50V
READY READY
R902
10
C901
C906
270pF D900 D901
220pF
50V
50V
READY
READY
C902
0 . 1 u F
50V
RS232C
$0.179
+3.3V_ST
R900 R901
4.7K 4.7K
RS232C_TXD
RS232C_RXD
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
0
DSUB_R
READY
C912
4.7pF
0
DSUB_G
READY
C913
0 4.7pF
DSUB_B
READY
C915
4.7pF
DSUB_VSYNC
R916
0
DSUB_HSYNC
R915
0
1K
DSUB_DET
DDC_SCL/UART_RX
DDC_SDA/UART_TX
PC_SER_DATA
PC_SER_CLK
M24C02 COMPARE THE COST
ROM DOWNLOAD FOR PDP
IC901
AT24C02BN-10SU-1.8 STM_2K_EEPROM
1 8
R922 100
2 7
R913
10K
3 6
4 5
C918 C919
18pF 18pF
50V 50V
IC901-*1
R1EX24002ASAS0A
A0 VCC
1 8
A1 W P
2 7
A2 SCL
3 6
VSS SDA
4 5
RENESAS_2K_EEPROM
PC AUDIO
JK900
PEJ027-01
3
6A
7A
4
5
7B
C911
6B
0 . 1 u F
50V
D902
ADUC30S03010L_AMODIODE
30V
D903
ADUC30S03010L_AMODIODE
30V
RGB V/HSYNC BUUFFER
RGB_VSYNC
003:B2
RGB_HSYNC
003:B2
+5V_VGA
+5V_MULTI
ENKMC2838-T112
D912
R924
R923
2.7K
2.7K
EDID_WP
R929
0
DDC_SCL/UART_RX
R930
0
DDC_SDA/UART_TX
R932
22
R934
22
IR_NEC
E_SPRING
T_TERMINAL1
B_TERMINAL1
PC_R_IN
R931
D910
R_SPRING 0
READY READY
5.6V
R926 R935
470K 12K
T_SPRING
B_TERMINAL2
PC_L_IN
LED_RED
R933
D911
T_TERMINAL2 0
READY
READY
R927
5.6V
R936
470K
12K
SUB_SCL
SUB_SDA
+5V_MULTI
LED_WHITE
+5V_MULTI
IC903
74F08D
D0A VCC
1 14
R959
22
D0B D3B C928
2 13
0.1uF
R953
22 Q0 D3A
3 12
D1A Q3
4 11
D1B D2B
5 10
Q1 D2A
6 9
GND Q2
7 8
DSUB_VSYNC
DSUB_HSYNC
BCM Reference
S U B B o a r d I / F
+3.3V_ST
+3.3V_ST
R914
47K
R910 +3.3V_ST
22
R925
47K
READY
R921 R940
C 10K
Q901 10K
B
2SC3052
E
R928
C 47K
B
Q902
E
2SC3052
C903
10pF P906
12507WS-12L
IR
1
IR
+3.3V_ST
GND
2
JP1111
R938 R941
10K 10K
KEY1
3
KEY1
C930
KEY2
10pF
4
KEY2
R937
C926
4.7K 10pF
R945
LED-RED
22
5
C931 D913
10pF GND
6
R946
22 SCL
7
D915
R947 CDS3C05HDMI1
READY
SDA
C924 22 5.6V
8
10pF
D916
CDS3C05HDMI1 GND
C923
+3.3V_ST 5.6V 9
10pF
READY
L900
MLB-201209-0120P-N2 3.3V_ST
10
C927
+3.3V_MULTI
L901 0 . 1 u F
3.3V_MULTI
MLB-201209-0120P-N2 16V
11
R939
4.7K C932
0 . 1 u F
LED-WHITE
16V
12
C933
10pF
GND
FOR PK/J90 - BREATING
P907
12507WR-03L
+5V_MULTI
LED_PK950
L903 LED_PK950
MLB-201209-0120P-N2
1
LED_PK950 JP1108
R988
10
2
LED_BREATHING JP1109
3
JP1110
C929
10pF 4
READY
13
EAX61354901
LVDS/RS232//RGB 1 0 1 3
LGE Internal Use Only