Kenwood KRF-V7771D Service Manual page 22

AJ
X25-B/7
SURROUND UNIT (X08-2942-70) (C/7)
-E18
2/6
J4
F
1
VIDEO2
2
COAXIAL
VIDEO3
1
COAXIAL
A1
DIGITAL
3
IN
2
VIDEO4
OPTICAL
1
2
A2
3
2
CD1
OPTICAL
1
E1
3
DE-EMPH 1
R1 100
PLL DO 2
R2 100
PLL CE 3
R3 100
PLL CLK 4
X11-C/7
-CN11 R4 100
PLL DATA 5
R5 100
T MUTE 6
1/6
-16V 7
+16V 8
C
T Lch 9
T GND 10
T Rch 11
R6
100
STEREO 12
R7
100
SD 13
4
R8
100
S-LEVEL 14
DE OUT 15
5
6
X11-B/7
-E9
2/6
7
G
AK
C99
L37
1000P
C98
L36
1000P
L23
100uH
+5V
+
R321 76
100
78
L22
100uH
DIGITAL
+
INPUT
SELECTOR
R320
100
32
29
VCC
27
28
26
9
10
11
31
+5V
30
25
4
IM DRAM
IC21
3.7V 1 20
I/03 VSS
3.7V 2 19 3.7V
I/04 I/02
4.5V 3 18 3.7V
78 WE_ I/01
3.8V 4 17 4.1V
79 RAS_ CAS_
5 16 4.3V
NC OE_
4.5V 6 15 2.8V
25 A0 A8
4.5V 7 14 2.8V
24 A1 A7
2.5V 8 13 2.7V
23 A2 A6
2.5V 9 12 2.5V
22 A3 A5
10 11
VCC VCC A4
4.9V
2.5V
R445
47K
AL
DIGITAL
IN
+5V
C86 C85
47P 47P
+5V
IC26
L42
100uH
+
R301
47K 4.9V
61
+5V
62
63
64
65
66
3.7V 67
3.7V 68
69
69
70
69
71
71 71
R415 47K
C63
R414 0.1
72
R442 47K 47K
73
R443 47K
74
R398 47K
75
R444 47K
76
77
77
78
3.8V 79
80
80
C61
0.1
AM
R318
1K
+5V
R326 R324
100 47K
5.0V
0.8V 2.7V
2.5V
C104
47P
R329
4.7K
IC27
INVERTER
R327 R328
100 47K
DIGITAL
(FL,FR)
+5V
DR_
1.8V
MD7 5.0V 2.5V
MD6 2.3V
MD5 5.0V
MD4
GND
MD3
MD2
IC22
3.7V
THX
MD1 5.0V
Re-EQ
VCC 3.7V
CONFIG.
(DSP)
MD0
GND
GPIO3
GPIO2
GPIO1
GPIO0
4.3V
MRD_ 4.5V
MWR_
0V
MRAS_
5.0V
MCAS_
5.0V
+5V +5V
AN
C180
L6
470P
L9
0V 1.8V
2.8V
C175 1000P