Integra DTR-7.4 Service Manual page 65

A
SUB MICROPROCESSOR-CONNECTION DIAGRAM
+B
Q7549
PRE UP
OWN
1
OWN
P
2 0 2
F F E R
+B
2
Q 7 2 0 1
M 3 0 6 2 4 F H P F P
3
+ 5 V
X7201
16MHz
4
Q2010
VIDEO SELECT
VIDEO SELECTOR
CONTROL
SW TC9273
SIGNAL
IR-IN
+B
5
P202
Q211
IR-OUT
PC817X
B
D 7 5 3 4
+B +B
Q 7 5 3 4
+B
D7551
DVD
Q7521
L E D G R E
5 0
L E D R E D
4 9
R Z V 1
4 8
R Z V 5
4 7
4 6
R Z V 4
4 5
4 4
R Z V 3
4 3
R Z V 2
4 2
4 1
V B J
4 0
V A J
33
3 9
34
3 8
MAINSCK
37
3 7
MAINSO 35
3 6
S U B S O 36
3 5
R T S 1
3 4
C L K 1
3 3
R X D 1
3 2
T X D 1
3 1
D7541 D7543 D7545
D7542 D7544
NET CD TUNER
PHONO
Q7527
Q7532 Q7530 Q7529
Q7531
38
V O L U M E
Q7000
MAIN
S 7 5 6 9
MAICROPROCESSOR
Q607
DIGITAL
AUDIO
INTERFACE
1
2
3
4
5
6
232TXD
7
8
9
232RXD
10
C
D7550
D7546 D7547 D7548
V3
V1 V4
T1 V5
Q7525
Q7522 Q7526
VDD C4+ 20
C1+ GND 19
VCC C4- 18
C1- VSS 17
C5+ STBY 16
C5- VCHA 15
14
13
12
11
DTR-7.4
D
RED
GREEN
D7549
V2
Q7523
R S - 2 3 2
P 2 0 1