Schematic Diagram - Video Board - Aiwa CX-BK7 Service Manual

7-22. SCHEMATIC DIAGRAM – VIDEO Board – •
CN803
5P
VIDEO-MUTE
VIDEO-SW
+10V
VIDEO-GND
V5V
JR801
0
(Page 68)
CN801
17P
WIDE
I/P SW
V5V
VGND
CR/B_GND
CR/B
CB/R_GND
CB/R
Y/G_GND
C814
Y/G
C_GND
C
(Page 55)
V_GND
V
V_GND
VMUTE
VIDEO.SW
C804
JW819
L800
47µH
CN804
2P
GAME-IN(V)
GAME-IN(VGND)
(Page 63)
•
See page 88 for Waveforms. See page 90 for IC Block Diagrams.
L801 47µH
JW860
VIDEO AMP, 75Ω DRIVER
IC801
MM1568
C816
1
GND2 CR OUTA
50V
CR IN CR OUTB
MUTE2 GND2
CB IN CB OUTA
1 50V
CLP CB OUTB
CY IN GND2
C812 NC CY OUTA
1
GND1 CY OUTB
50V
C807 TRAP GND2
C808
100
0.01
10V GND1 Y OUTA
C806
1
BIAS Y OUTB
50V
Y IN GND2
YC MIX V OUTA
1 50V
V IN V OUTB
MUTE1 GND2
C IN C OUT
C802 VCC1 VCC2
1
50V
C801
1
Q801
C800 DTA114EKA-
470 T146
6.3V
Q801,802
WIDE SWITCH
Q802
DTC114EKA-
T146
JW855
R837
47k
R818
75
C818 22 50V JW818
C819 100 10V
R821
75
C821 22 50V JW821
C822 100 10V
C825
1000 R824
6.3V 75
JW824
C828
1000 R827
6.3V 75
JW827
C830
100 R830
10V 75
C833 R833
0.1 75
IC802
R834
JW830
10k NJM2244
VIN1 GND
SW1 VOUT
VIN2 VCC
SW2 VIN3
VIDEO SWITCH, 75Ω DRIVER
R835
10k
C836
C837
470
100p
10V
59 59
R836
47k
JW833
D838
1SS355
C841
1000
16V
R838
68
C810
100p
C840 R839
100p 10k
C811
100p
C839
C845 C838
100
0.1 1
16V
CX-BK7
CN802
15P
GND
GND
Cr/Pr
GND
Cb/Pb
GND
Y
NC(SW_GND)
NC(LINE3)
(Page 77)
GND
C
GND
Y
GND
VIDEO
EP801
(CHASSIS)