42LH90QR (CHASSIS:LP91C) - LG TV Service Manual (repair manual). Page 24

TV_MAIN

27pF

C502

10uF
16V

C508

+5V_TUNER

27pF

C500

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.

10uH

L502

NTSC_READY

270pF

C504

READY

M_SCL

47

R504

MAIN_SIF

M_SDA

47

R505

82pF

C507

NTSC_READY

+5V_TUNER

ISA1530AC1

Q502

E

B

C

MLB-201209-0120P-N2

L500

READY

TAFT-Z203D

TU500

PAL_TUNER

14 NC_5

13 V-OUT

5 RF_AGC

12 NC_4

11 MOPLL_AS

2 GND_1

19 NC_8

18 NC_7

10 SCL

4 NC_2

1 NC_1

17 NC_6

9 SDA

8 GND_2

3 +B[5V]

16 SIF-OUT

7 NC_3

6 TP[3.3V_OPT]

15 A-OUT

21

SHIELD

20 NC_9

TAFT-H203F

TU500-*1

NTSC_TUNER

14

NC_5

13

V-OUT

5

RF_AGC

12

NC_4

11

MOPLL_AS

2

GND_1

19

NC_8

18

NC_7

10

SCL

4

NC_2

1

NC_1

17

NC_6

9

SDA

8

GND_2

3

+B[5V]

16

SIF-OUT

7

NC_3

6

TP[3.3V_OPT]

15

A-OUT

21

SHIELD

20

NC_9

220uF

16V

C505

220

R507

220

R506

4.7K

R502

0 . 0 1 u F

C501

0 . 1 u F

C503

N e a r   t h e   p i n

TUNER

H6 LH90

5       1 2

2 0 0 9 / 0 3 / 0 4

EAX61087201
Mstar LCD LH90