JVC TH-A75R Service Manual page 78

Video input/output section
LVA10375-A1
AVVLR
S2401
RGB/YC
NTSEL
SW
TO
System
5
control
B/CV
G/CV
R/C
CV/Y
J2201
11
C 5
14
S/COMPOSITE 9
6
Y
VIDEO IN 1
8
16
CV 3
1
4
IC221
VIDEO
C
SW2
S/COMPOSITE
Y
VIDEO IN 2
CV
VIDEO-SW2
VIDEO-SW1/SW3
TO
VIDEO-MUTE1/MUTE2
System
VIDEO-Y/C-MIX
control
VIDEO-RGB
VIDEO-LPF
BLANK-CTL
3
FL display section
LVA10376-A1
FROM/TO
CN207 OF
LVA10375-A1
(System control)
CN401
IC402
REMOCON
7 Remocon
receiver
INITIAL
2
DATA IN 3
2
CLOCK 4
RESET
1
B5V 8 B5V
12V 12V
14
D5V 16 D5V
-VDISP
17
F2
18
F1
19
KEY1
5
KEY2
6
HP-R 11
S402-S410
HP-L , , , ,
13
VOL-,VOL+,
HP 10
1
A
Main board
14 23
11 25
14
5 16 21
Q2311
11
IC231
9
6
VIDEO
8
DRIVER
16
3 2
1 Q2301 33
IC211
VIDEO
SW1
6 31
8 28
Q2483
Q2484
Switch board
27 Q403
D401
Q405
39
PROG/RGB
LED&DIMMER
29
Q404 D402
IC401
Q406 D403
40
DISPLAY MICOM ILLUMI
2,3,5,26
LED&DIMMER
100
X401
9,10
OSC
8MHz
G1-G14
P1-P35
LVA10378-A4
1
DI401
Headphone board
62
FL DISPLAY
,SOURCE
CN403 W401
3 3
1 1
4 4
B C
TH-A75R TH-A75R
DVD servo section
J2891
AV COMPULINK
J2403
B
7
G
11
R/C
15
BLANKING
16
19 COMPOSITE/Y
J2401
CV
S/COMPOSITE
VIDEO OUT
C
Y
J401
HEADPHONE
D E
2-2
F G H