Onkyo TX-SR876 Service Manual page 28

A
SCHEMATIC DIAGRAMS-6 (SD-6)
VIDEO SECTION
1
COMPONENT VIDEO
Component
3 IN
Component
2 IN
2
Component
1 IN
Component
OUT
3
S VIDEO
AUX1
GAME/TV
CBL/SAT
4
OUT
VCR/DVR
IN
DVD
MONITOR
OUT
5
COMPOSITE VIDEO
Z2OUT
B
NAVD-9052
U08
VIDEO PC BOARD
R2201 C2201 1/50
Cr/Pr
75
C2202 104Z
75
C2203 1/50
Cb/Pb
R2202
C2204
104Z
C2205 1/50
Y
C2206 104Z
R2204 C2207 1/50
Cr/Pr
75
C2208 104Z
75
C2209 1/50
Cb/Pb
R2205
C2222
C2210
104Z
104Z
C2211 1/50
Y
C2212 104Z
C2223
104Z
WF26
C2224
104Z
1/50
C2214
R2207
Cr/Pr
R2223 1K
75 R2222 1K
C2215 104Z
Cb/Pb 75 C2216 1/50 R2216 10K
R2208
C2217
104Z
C2218 1/50
Y
C2219 104Z
WF24
Cr/Pr
WF26
Cb/Pb
WF25
Y
WF24
C2221
102K
<Note>
Refer to SCHEMATIC DIAGRAM-21 (SD-21)
for video signal waveforms.
104Z C2001
V4SC
C Y C2002
V4SY
1 4 10/50
2
5 C2003
V4CV
10/50
104Z
P2001
C2004 V3SC
C Y C2005
V3SY
8 11
10/50
9 12
C2006 V3CV
10/50
102K
C2008
V2SC
C2007
104Z
C Y C2009
V2SY
4
1
10/50
2 5
C2010
V2CV
10/50
75
P2002
R2010
C Y R2011
8 11 75
12
9 R2012
75
RN1444
102K
C2012
V1SC
C2011
104Z
C Y C2013
V1SY
1 4
10/50
2 5 C2014
V1CV
10/50
104Z
P2003
C2016
DVDSC
C Y C2017
DVDSY
8 11
10/50
9
12
C2018
10/50
102K
P2004 R2022 75
C2015
R2023
C Y
4 3 75
R2024
2 1
75
C2019 102K
C2020
RN1444
102K
Q2004
R2028
75
Q2005
RN1444
+9.0V
1 38
V+
Pb IN4
C2233
2 37
Pb IN2 V+
3
36 104Z
GND
Y IN4
C2234
4 35
Pr IN2 V+
5 34 104Z
GND Q2201 Y OUT1
6
33
Y IN1
GND
7 32
NJW1321
V+ Pb OUT1
8 31
Pb IN1 GND
9 30
V+ VIDEO SW
Pr OUT3
10 29
Pr IN1 AUX3
11 28
GND AUX2
12 27
PORT3
Y OUT2
13 26
PORT2 AUX1
14
25
ADR
AUX0
220/16
WF25
C2235
104Z
R2219
C2232
2.2
PYDET
SDET
CVDET
+9.0V
C2230
10/50
104Z
MAIN V
Q2006
74HC4051
+5.0V
R2029 100K
RN1444
Q2001
C2024 104Z
Q2002 C2025
-5.0V
470/6.3
RN1444
C2026
Q2003
470/6.3
LS1
WF23
MAIN C
Q2010
74HC4051
WF22
DVDCV
WF21
WF23
WF22
WF21
LS2
LS3
TX-SR876/SA876
C
Q2204
R2227
2SK3019
10K
PYOUT1
PBOUT1
PROUT1
DACPY
DACPB
DACPR
R2230 1
CH1 IN1 CH1 OUT
10/50 1K 2
SW1
C2239 3
CH1 IN2 CH2 OUT
R2271 4
C2240
SW2
104Z 10K 5
C2241 10/50
CH1 IN3 CH3 OUT
6
GND
7
C2242 104Z
V+1
8
C2243 CH2 IN1 CH3 IN1
9
10/50
GND
C2244
10
104Z CH3 IN2
CH2 IN2
11
GND
12
CH2 IN3 CH3 IN3
Q2206
NJM2586A
VIDEO AMP
C2248
100K
R2041
R2038 100K
R2042
R2039 100K
100K
R2040 100K
R2043
100K
+5.0V
Z2 V
Q2007
74HC4051
-5.0V
CV_M
MAIN Y
Q2009
Q2008
74HC4051 74HC4051
SY_M
Z2 C
Q2011
74HC4051
C2064
D
Q2205
2SK3019
C2245
104Z 75
R2237
R2238
24
23 3.3
PS
R2241
R2239
22
21 75 3.3
V+2
R2240
20
19
R2242 3.3
GND
C2249
18
75
V-2
17 104Z
16
V-1
15
14
GND
R2247
13 RS
1K
+5.0V
-5.0V
R2231 2.2
220/6.3
C2246
220/6.3 R2246 2.2
VIDEO AMP
NJM2587
Q2012
1 32
SC IN
PS1
2 31
NC SC OUT
3 30
V IN GND out
4 29
GND in V OUT
5 28
104Z
SY IN V+4
C2043
6 27
V+1
SY OUT
C2044
7 26
V-1 V-4
8 25
104Z
Y IN Y OUT
C2045
9 24
V+2
V+3
104Z 10 23
GND in Y Cb OUT
11 22
Cb IN GND out Y
12 21
GND in Cb
Cr OUT
13 20
Cr IN GND out Cb
C2046
14 19
V-2
V-3
104Z 15 18
GND in Cr GND out Cr
16 17
PS2 NC
1 32
SC IN PS1
2 31
NC SC OUT
3 30
V IN GND out
4 29
GND in V OUT
104Z
5 28
V+4
SY IN
C2051
6 27
V+1 SY OUT
C2052 7 26
V-1 V-4
25
104Z 8
Y IN Y OUT
C2053
9 24
V+2 V+3
104Z 10 23
GND in Y Cb OUT
22
11
Cb IN GND out Y
12 21
GND in Cb Cr OUT
13 20
Cr IN GND out Cb
C2054 14 19
V-2 V-3
104Z 15 18
GND in Cr GND out Cr
16 17
PS2 NC
Q2013
NJM2587
VIDEO AMP
C2067 220/6.3
C2068 104Z
C2078 470/6.3
22/50
C2063
C2065
1 6 R2054
SAG YIN
2 5 1/50 150
OUT GND
C2066
3 4 R2055
VCC CIN
100/16 150
103Z
R2053
R2052
Q2014
150
150
MM1512 Y/C Mix