Kenwood RXD-NV301 Service Manual page 22

AO AP
MAIN BOARD
Q Q
3 7 6 3 1 5 1 5 0
1
2
C323
0.33u50
CP906
DATA 1 21
SQSO 2 20
CLK 3 19
3 LD ON 4 18
X LAT 5 17
CD OFF 6 16
P
CD MUTE 7 15
X RST 8 14
PAUSE IN 9 13
SENS 10 12
SCOR 11 11
+9V
FOK 12 10
CP905
8.9V
BRKN 1 30
ATR 2 29
ATL 3 T E 28
L 1 3 9 4 2 2 9 6 5 1 3
CL/UP 4 27
OP/DW 5 26
Q
CLOSE SW 6 25
4
OPEN SW 7 24
8
9
UP S/W 10 23
DOWN S/W 11 22 IC301
CP904 INPUT
SELECTOR
MOTOR G 31
BRKN 30 30
ATR 29 29
ATL 28 28
CL/UP 27 27
C305
OP/DW 26 26 2.2u50
+
CIOSE SW 25 25
OPEN SW 24 24
4.5V
C302
UP S/W 23 23 2.2u50
DOWN S/W 22 22 +
C300
2.2u50
DATA 21 21
5 CD PART
SQSO 20 20 +
-CP501
CLK 19 19
C303
1/5
LD ON 18 18
2.2u50 4.5V
X LAT 17 17
+
A C301
SYS OFF 16 16
2.2u50 4.5V
MUTE 15 15
+
FRONT-2
X RST 14 14
-CP108
MUTING
PAUSE IN 13 13
DRIVER
3/5 SENS 12 12
Q303
Q910
SCOR 11 11
FOK 10 10
G
D OUT 9
FRONT-2 D GND 8 Q304
-CP103
D GND 7
R CH 6
3/5
A GND 5
6 A GND 4
I
L CH 3
Q303,304
+9V 2 +9V
FRONT-2 MUTING
+9V 1
-CP110
8.9V
3/5
w w w
M
FRONT-2
CP903
-CP105
3/5
O
O
7
AQ AR
+5V
IC701
POWER
TR1 TR2
AMP
TR9
TR6
TR11
R2 C1
C2
TR8
TR3 TR4
TR12
TR10
Q301,302,306,307
R7 TR7
MUTING C5
TR5
Lch
R315 R319
1K 1K
+
Q301 Q307
Q302 Q306
R320 R700 C702
R316
1K 1K 10u25
+
1K
Rch
Rch
IN
MUTE
Lch IN
ON : 2.2V
OFF : 0V
+5V
+9V
R314 11.9V
+12V
D926
100
MAIN
MUTING
4.5V
DRIVER
C317
D924
4.5V
0.18
MUTE
OFF : 5.0V
5.0V
R929
1K
x a o
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
CN901 CN900 CN902
. i
G I
AS AT
+5V
TR31
TR14 TR13
D35
TR21
D33
TR18 COMPARATOR
TR23
C3 R12
C4
TR20
D32
TR16 TR15
D34
TR24
COMPARATOR
TR32
D36
TR22
R17
C6
TR17
TR19
SUB
45.0V -44.4V
D700 D701
Lch
-46.0V
OUT
R707
56K
C707
15P -23.6V
+B Rch
OUT
+9V
-23.6V
Q Q
Q703
3 7
45.0V
+B +B
R718
Q702
D706
1K R719
45.6V 10K
1/4W
R716
100K
R715
Q701
68K
Q704
Q700
B
-45.3V
D928
+5V +5V
-34.5V
R922
Q909
Q907
10
+9V
IC902
1/4W +5V AVR
+5V OUT
5.0V
Q901
Q908 C932
Q912
3.3u50 R923 0.7V
+
1K
Q911
+12V
5.0V
+5V
5.9V
u 1 6 3
11 10 9 8 7 6 5 4 3 2 1 1
y
M
AU AV
2 4
8 9
L701 2uH
R729 22
L700
R722
33K 2uH
R730
R723
0.1 5W
22
R725
27K
R724
0.1 5W
C719
1000P
R731 R726
470 27K
45.7V C718
Q706
1000P
45.7V
Q705
D929
R732
470
45.5V
Q913 Q906
Q905
Q914
Q904
46.0V
R735
23.6V
+B +B
B 1/4W
6 3 1 5 1 5 0 8
46.0V
0.7V
D927 D901
+B
R936
27K
-23.6V
B
-46.0V
B
+5V
CD : 8.9V
IC901
+9V AVR
R943
D902
20.0V 0.22 1W
OUT IN +B
GND C903 0.01
+12V AVR
R942
IN
D903
0.22 1W
11.9V
IC900
GND
C904 0.01
+12V OUT IN
GND
m
c o
2
CP912
.
M
FAN
AW AX
INPUT BOARD
CP251 CN251
D GND
3 3
DATA
2 2
2
9 8 9 9
+5V
+5V 1 1 +5V
L INPUT
3 3
S GND
2 2
R INPUT
1 1
CP250 CN250
CP700 CN700
C725
GND 4700P
1 1
L CH
2 2
GND
3 3
R CH
4 4
C723 C721 R733
HEADPHONE BOARD
0.1 0.1 4.7
1W
C722 C720 R734 C728
0.1 0.1 4.7 4.7u50
CP701 R741
+
1W
220 2W
4 4
R742
3 3
220 2W
2 2
1 1
CN701
TRANS900
23.4V
F900
4.7 RY700 T2.5AL/
250V
TRANS901 115V
2 2
9 2 4 9 8 2 9 9
1 1
CP900
115V
3 3
Q707
2 2
RELAY
1 1
DRIVER
150 C
CP910
6 POWER TRANS
TRANS901
HIGH
5 5
LOW
4 4
GND
3 3
LOW
2 2
HIGH
1 1
CP901
2
3 3
1
2 2
1 1
CP902
CP907
AC 4.8V
2 2 2
AC 4.8V
1 1 1
CN904
5.9V
R906
D908
4.7K
Q903
D909
10.3V
+B +B
C917 0.01
+5.0V
AVR
C919 0.01
Q902
R908
D911
6.5V
1K
10.3V
ASIA TYPE ONLY
R900
3.3K