Samsung HL67A750A1FXZA Service Manual page 84

Schematic Diagram
7-3-6 Main Board-6
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Power
ATSC HALF NIM TUNER
B5V_TUNER
TP601
BD601
1 2
3.3UH
C601
10UF
10V
FGND FGND FGND FGND
R607
SCL_NIM
B5V_TUNER
R608
SDA_NIM
R609
IF_AGC
0OHM
R601
1KOHM
OPTION FOR ALL-CH TEST
R602 R603 R604
470OHM 1KOHM 1KOHM
IFOUT_BAY+
IFOUT_BAY-
7-8
TU33V_NIM
TP602
BD602
1 2
3.3UH
C609 C610
1UF 100NF
50V 50V
FGND FGND
R611
AGC_NIM
0OHM
AFT_NIM
R612
100KOHM
1
R615
TP605
0OHM
R613
0OHM FGND
TU_CVBS
1/10W
R614
TP603
100OHM
TU_SIF
2 1 1
1/10W
2 1
100OHM
TP604
TP606
1/10W
1 2 1
TP608
R610
C605 C608
47PF 47PF 200KOHM
50V 50V
100NF
16V
C606
C607
100NF
16V
22PF 22PF
50V 50V
VERY CLOSED TO RF INPUT PORT
TU601
TU33V
TDQU2-K01A
TP610
MGND1
MGND2
1
2
3
4
5
6
TP612
7
B12V
8
9
TP611
0OHM
1 10 L601
11 1
12
13
C611
14
10UF
1 15
16V
1 16
MGND3
TP609
MGND4
GT601
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D601
L602
MMBD4148SE
100UH 100V
2
R618
IC601 390KOHM
R616
20KOHM
1 8
RT FB
2 7
CT COMP
3 6
C612
ENB GND
4 5
100PF GD VCC
50V
R617
3.3KOHM
15KOHM
C613
10NF
50V
D
Q601
G
2N7002
S
TU33V_NIM
L603
R620
3.9UH
1KOHM
C615
1UF
50V
C614
100PF
50V
R619
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