42LH20 Main Board (Front View) Component Layout
42LH20 Main Board (Front View) Component Layout
51
MAIN (Digital) Board
To
Speakers
Reset
IC100
IC1004
8vsb/
QAM
Q706
1 (5V)
2 (0.48V)
3 (0.48V)
4 (6V)
5-6 (12.3V)
7-8 (5V)
IC600
Audio
56 Pin
1
To SMPS
PWB
L726
L710
Q706 Switch
(12V LVDS)
(5V General)
X1005
25 Mhz
X100
12 Mhz
IC1003
IC701
P600
P700
P1204
TUNER
16 SIF
19 Video
4 (5V)
12 DIF +
13 DIF -
15 (5V)
LD1000
To Front
Control
IC101
IC105
IC1000
IC704
3.3V-FE
1 (0.78V)
2 (Gnd)
3 (5V)
4 (7.4V)
5 (2.12V)
6 (3.28V)
7 (3.28)
8 (5V)
IC705
1.26V_VDDC
1 (0.78V)
2 (Gnd)
3 (5V)
4 (5.9V)
5 (5V)
6 (1.3V)
7 (1.3V)
8 (3.16V)
IC701
1.8V_DDR
1 (N/C)
2 (3.18V)
3 (3.18V)
4-5 (N/C)
6 (1.87V)
7 (0.8V)
8 (Gnd)
Q702
Inv-On Control
Gnd
0V
(0.6V)
3.85V (0V)
IC1000
1.2V_PVSB
1 (N/C)
2 (3.2)
3 (3.2V)
4-5 (N/C)
6 (1.2V)
7 (0.8V)
8 (Gnd)
IC105
HDCP EEPROM
1-2 (Gnd)
3 (5V)
5-6 (0V)
4-7 (Gnd)
6 (1.2V)
7 (0.8V)
8 (5V)
IC101
Flash Memory
1-2 (0V)
3-4 (0V)
5-6 (0V)
7-8 (3.2V)
IC107
Power Det
1 (3.28V)
2 (Reset) .3V
3 (Gnd)
IC107
IC704
3.3V_FE
IC705
1.26V_VDDC
Grayed Out ICs are located on Back
IC100
P801
( ) = Off
0V 0.6V)
To T-CON
(LVDS)
IC100
Micro and Video
Processor
Mstar Chip
E
C
B
KEY
