Onkyo TX-SR804 Service Manual page 14

A
BLOCK DIAGRAM-2
VIDEO SECTION-1
1
NAVD-8991
VIDEO BOARD
COMPONENT
VIDEO IN 1
2
COMPONENT
VIDEO IN 2
COMPONENT
VIDEO IN 3
3
4
5
B
Y
PB
PR
Y
PB
PR
Y
PB
PR
DVD
VIDEO1
71_V1
72_V2
VIDEO2
73_V3
74_V4
75_V5
VIDEO3
VIDEO4
(FRONT)
C Y
DVD
79_Y1
C Y
80_Y2
VIDEO 1
C Y
VIDEO 2
C
Y
VIDEO 3
10_C3
11_C4
12_C5
C Y
VIDEO 4
(FRONT)
C
18_CY1
19_CY2
20_CY3
6dB
Y
24_PB1
25_PB2
26_PB3
6dB
CB
30_PR1
31_PR2
32_PR3
6dB
CR
Q4002 AN15881A
4/6dB
V
1_Y3
2_Y4
4/6dB
Y
3_Y5
8_C1
9_C2
4/6dB
C
TX-SR804/804E
D
S SIGNAL
DETECT CIRCUIT
Q4004
LC74763-9836
SDET
OSD
18 16
SDET
7 8 9
To Micro Processor
0dB
0dB