Schematic Diagram - Video Board, Headphone Board - Sony STR-K890 Service Manual

4-22. SCHEMATIC DIAGRAM – VIDEO BOARD, HEADPHONE BOARD –
1 2
A
VIDEO BOARD
JW204
5.5
J201
G
MONITOR VIDEO OUT
B
V2
R201
75
VIDEO IN
V1
VIDEO 1 J200
G
JW205
5.5
C
V3
VIDEO OUT
V2
DVD VIDEO IN
V1
SAT VIDEO IN
D
R303
J302
75
Y
R302
75
MONITOR
P B /C B
OUT
E
R301
75
P R /C R
JW206
5.5
G
F
J301
R312 75
P /C
R R
R311
VIDEO1 75
P /C
B B
IN
R310 75
Y
G
R306 75
P R /C R
R305
COMPONENT 75
DVD IN P /C
B B
VIDEO
R304 75
Y
H
R309 75
P /C
R R
R308 75
SAT IN
P B /C B
R307 75
Y
I
STR-K890
• See page 40 for IC Block Diagrams.
3 4 5
C210
C214
47
0.1
R220 16V
75
C208
10
50V
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
R200
75
C213
47
R218 16V
75
C206
D204
D203
10
1SS133T-72
50V
1SS133T-72
75
R221
C207
10
50V
22 21 20 19 18 17 16 15 14
C316
10
50V
IC304
1 2 3 4 5 6 7 8 9
VIDEO AMP
C315
10
IC B/D
50V
C314
10
50V
C309
10
50V
C308
10
50V
C313
10
50V
C312
10
50V
C311
10
50V
C310
10
50V
6 7 8
C209
10
50V
TA7805S
IC807
5
O
2
G
C220 3
IC203 47
16V
VIDEO AMP
IC B/D
TA79005S
C221
IC804
47
16V
-5
2 O
G
C215
0.1
50V 1
C341
0.1
13 12
C338
C330
47
0.1
16V
10 11
C337
C331
47
0.1
16V
35 35
9 10 11
VIDEO3 BOARD
1 GND Q
75
R219
CN201
2 VIDE03
(Page 33)
3 GND
CNP202
3P
IC807
HP_DETECT
MAIN BOARD (2/4)
+5V REG
I
CN792
15.5
I I
1
(Page 25)
C223
HP_GND
0.1 CNP203
4P
CL085
4 +15V
CL086
3 GND
O
C224
0.1
2 NC
-18 CL087
MAIN BOARD (4/4)
I I
3 1 -15V
CN505
(Page 27)
IC804
-5V REG
CNS207
13P
13 V MUTE
6.8{HDMI}
12
S2 {HDMI}
11
S1 (HDMI}
10
9 DEO {HDMI}
A
8 PRE {HDMI}
7 CNTL {HDMI}
DIGITAL BOARD (1/5)
6 COMP SW2 CNS509
(Page 18)
5 COMP SW1
VIDEO SW1
4
3 VIDEO SW2
2 VIDEO SW3
1 VIDEO SW4
CN204
7P
7 CTL(HDMI)
6 PRE(HDMI)
S
5 OED (HDM1)
GND(NC)
4
HDMI SW BOARD
S1 (HDM1)
3
CN5004
CL088
HDMI_6.8V
1
(Page 37)
No mark:FM
STR-K890
12 13 14
HEADPHONE BOARD
CL071
6
1
7
CL072
2
NC 2
1
PHONES
C790 5
HP_R 3
0.1
4
CL073
3
4
CL074
HP_L 5
C791
CNP790 0.1
5P
TP790
(CHASSIS)
BT700
(CHASSIS)
J790