50PT350B-SG (CHASSIS:PB12K) - LG TV Service Manual (repair manual). Page 20

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.

R2032
12K

+3.3V

R2019

75

COMP2_Y+

R2028
10K

R2025

75

R2024

75

R2004

10K

C2011
10pF
50V

READY

COMP1_Pr+

C2009
1000pF
50V

AV_CVBS2_DET

COMP2_DET

R2022

470K

JK2001

PPJ239-01

5J

[GN2]O-SPRING

6J

[GN2]E-LUG

4J

[GN2]CONTACT

7K

[BL2]E-LUG-S

5K

[BL2]O-SPRING

7L

[RD2]E-LUG-S

5L

[RD2]O-SPRING_1

5M

[WH2]O-SPRING

4N

[RD2]CONTACT

5N

[RD2]O-SPRING_2

6N

[RD2]E-LUG

6D

[GN1]E-LUG

5D

[GN1]O-SPRING

4D

[GN1]CONTACT

7E

[BL1]E-LUG-S

5E

[BL1]O-SPRING

7F

[RD1]E-LUG-S

5F

[RD1]O-SPRING_1

4F

[RD1]CONTACT_1

5G

[WH1]O-SPRING

4H

[RD1]CONTACT_2

5H

[RD1]O-SPRING_2

6H

[RD1]E-LUG

+3.3V

COMP1_DET

R2027
10K

R2016

75

COMP2_Pr+

C2005
10pF
50V

READY

R2007

1K

R2029
10K

R2003
1K

R2021
470K

R2020

470K

AV_RIN_COM1

C2004
10pF
50V

READY

AV_LIN_COM1

AV_RIN_COM2

C2003
1000pF
50V

R2006

10K

COMP1_Y+

R2018

75

R2001

10K

R2023

75

C2008
10pF
50V

READY

R2033
12K

COMP1_Pb+

R2026
10K

C2007
1000pF
50V

AV_LIN_COM2

+3.3V

C2010
1000pF
50V

R2005

1K

R2017
470K

R2035

12K

COMP2_Pb+

C2006
10pF
50V

READY

C2012
10pF
50V

READY

R2034

12K

USB / LVDS 

GP4 LM1

20110303

6

7

HIGH

RESULT

HIGH

AV_CVBS_DET

AV_CVBS

COMP2_DET

LOW

HIGH

LOW

LOW

LOW

COMP2_DET

HIGH