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Kenwood VRS-7100 Service Manual page 11

Audio-video surround receiver
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U
QQ
3 7 63 1515 0
(X08-3280-10)
LEVEL
SHIFTER
(+3V
+5V)
+3.4V
TE
L 13942296513
Q701
R828
180
79
R830 100
78
R829 100
77
IC81
LEVEL SHIFTER
(+3V
+5V)
www
.
V
4
6
5
+3.4V
78
77
63
IC82
29
26
79
22
25
R896
2.2
R831 100
R930 100
98
R929 100
97
R928 100
96
R927 100
94
R926 100
93
R925 100
92
R924 100
91
R923 100
90
R922 100
89
R921 100
88
R843 1K
87
R842 100
86
R841 100
85
R840 470
84
R839 470
83
R838 100
82
R837 100
81
R836 100
R895
2.2
C24
x
ao
u163
1000P
y
i
+5V
+3.9V
VRS-7100 (1/5)
W
2 9
8
CN74
33.4V
19
VDD FL
18 FILAMENT-
17
FILAMENT+
16
GND
+5V
15
VDD5 MICOM
14
GND FLRETURN
13
VDD3 MICOM
X14-C/7-
CN101
12
ENC VOL CW
11
ENC VOL CCW
5/5
BE-6
10
KEY BAND
9
KEY STANDBY
8
REMOTE
7
ED STANDBY
18
6
LED 2
5
FLPDRV MISO
4
LED 1
15
3
FLPDRV MOSI
16
2
FLPDRV CLK
17
1
FLPDRV CS
R848
C711
4.7
1000P EARTH
CN72
11
1
V DATA
12
2
V CLK
13
3
V ST
98
4
YCbCr MUTE
97
5
YCbCr V2/DVD
X25-A/2-
96
6
S MUTE
CN309
Q Q
94
7
S SW2
3
6 7
1 3
1 5
AD-2
93
8
S SW1
2/5
92
9
CVBS SW5
91
10
CVBS SW4
90
11
CVBS SW3
89
12
CVBS SW2
88
13
CVBS SW1
8
14
V DET
7
15
HP DET
CN71
21
NC
20
VDD FAN
CAUTION: For continued safety, replace safety crit-
15
19
PRE MUTE
ical components only with manufacturer's recom-
18
HP MUTE
66
17
HP RLY
mended parts (refer to parts list).
74
16
BDV SCL
critical components. For continued protection
75
15
BDV SDA
16
14
SEL ST
against risk of fire, replace only with same type and
17
13
SEL CLK
X25-B/2-
rating fuse(s). To reduce the risk of electric shock,
CN7
18
12
SEL DATA
70
11
BDS SDA
leakage-current or resistance measurements shall
3/5
AM-4
69
10
BDS SCL
be carried out (exposed parts are acceptably insu-
14
9
PLL CE
lated from the supply circuit) before the appliance is
13
8 PLL DIN
12
7
PLL CLK
returned to the customer.
59
6
PLL DO
4
5
S LEVEL
11
4
T MUTE
57
3
SD
The DC voltage is an actual reading measured with
56
2
STETEO
a high impedance type voltmeter with no signal
1
FM DET
input. The measurement value may vary depending
CN13
on the measuring instruments used or on the prod-
87
21
TAS SHUTDOWN
uct.
82
20 TAS RST
86
19
TAS ERR RCVY
85
18 TAS MUTE
81
17 TAD PDN
84
16 TAS SDA
83
15
TAS SCL
14
DC PROT.
X07-
CN1
13
VDD FAN
80
12
AUDIO C/(SW/CS)
4/5
AO-3
11
GND FAN
65
10
AUDIO LS/RS
9 GND
64
8 AUDIO L/R
co
7 GND
87
6
AUDIO BCLK
5
VCC ANALOG
.
86
4
AUDIO FCLK
3
VDD4
94
2
AUDIO MCLK
1
GND
X
VRS-7100
9 4
2 8
0 5
8
2 9
9 4
2 8
indicates safety
m
X08-3280-10 (3/3)
Y
9 9
9 9
19

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