Schematic Diagram - Kenwood DV-502 Service Manual

U V
Q701 : KTC3875(S)
Q702,704 : KRC107M(SMD)
D701,702 : 1SS355
D703 : UZ5V1(S)
D705-710 : UZ5V1(SMD)
SCART BOARD : (E,T)TYPE ONLY
R704 R735 R733 C713 R714
CP702
0 0 0 10u50 680
AR OUT
1
+
R703 R736 C714 R715
2
0 0 10u50 680 AL OUT
3
+
4
5
6
R717 R718
7
L704
39 39
BLUE
8
SENSE
L706
9 1K
10
11 R719 R720
39 39
GREEN
11
13
R721 R722
39 39 C/RED
15
J736 BLK
CP701 R701
22uH
100
1
17
2
R732 C719
3
0 100u10
L703
4 +
C715 R731
120
R702 Q701
Y/CVBS OUT
D703 100u16 39
5 100
19
+
CVBS IN
Q702
R734
75
D701
J704 R738 R708
22uH
0 1K
Q704
IC805
3
OUT
2
OPTICAL
GND
1
+5V VCC
DIGITAL
OUT
R801
100
JK801
R808
0 1
COAXIAL
R820
2
0
JK802
R836L
0 1
Lch 1
AUDIO
2
OUTPUT
R836R
0 3
Rch 2
5
4
R838
D805
R837 470
0
Q805
W X
FRONT BOARD
CN901
GND 1
L903
10
+5VFL AC 2
1/4W +5V
L902
-27.9V 10 R910
-27VFL AC 3 27V
L901
-5VFL AC 4
10 1/4W
D905
+5V6S 5 +5.5V
POWER CTL 6 5.6V 4.9V
+5.5V
CN902
3.7V
IR REMOCON 1 +5.5V +5.5V
2 +5.5V
VFD STB 3
1 VFD DATA OUT 4
JK701
VFD DATA IN 5
1 A-5
2
VFD CLK 6
3
POWER CTL 7
4
5
6
7
8
9
10
SKIP SKIP
12
FORWARD BACKWARD
SW906
14
SW907
KEY1
16
18
KEY2
KEY3
20
21
KEY4
POWER SUPPLY BOARD
CN3
GND 1
FL5V+ 2
-27.9V
-27V 3 27V
FL5V- 4
5.6V
5.5VS 5 +5.5V
-8.5V
8V
12.2V
+12V
+12V
5.6V
U2
AVR
CN4
9.0V
+9VA 1 +9V VO VI
11.2V
AGND 2 GND
-8VA 3
5.6V
+12VA 4 +5.5V
D12
+5V +5.5V
O-3
U3
0.7V 5.5V
P/REST 5 VO VI
2
GND
3.3V
+3.5V 6 +3.5V
2.5V
DGND 7
+2.5V 8 +2.5V
5.3V
+5V 9
+12VM 10 +12V
MGND 11
+9VM 12 +9V
Y Z
+5.5V
+5.5V
R911
10K
+5.5V
4.9V
RM901
1
2
IN +B
3
GND
4
5
DOUT
6
IC901
DIN
R904 7
VFD CONTROLLER
10K 8
/DRIVER
CLK
9
STB
10
KEY1 KEY1
11
KEY2 KEY2
12
KEY3 KEY3
13
KEY4 KEY4
STOP
SW903 +5.5V
D904
SEARCH SEARCH
FORWARD BACKWARD
SW905 SW904
D902
PLAY OPEN/
PAUSE CLOSE
SW901
SW902
D901
T1
LF1
R5
D7 D1-D4
3.9 8 6
1/4W
7
R8
D8
20
9
4
R10 D6
1
D9
2.2
14 +B
1/4W
U1
D10
L1
15
15uH
C12 R12
PC1
1000P 10
1/2W
2
D11
L2
10
15uH
U1 : KA1M0380RB-YDTU
U2 : KA7809
U3 : KIA7042AP
U4 : KA431AZ
D1-4,14 : 1N4007
D5 : HER107
L3 D13
13
D6,8,9 : 1N4937
+3.5V
7uH D7 : HER105
11
D10,11 : SF24
12 D12 : 1N5819
D13 : SR204
14
ZD1 : 1N5239B
ZD2 : 1N5226B
DV-502/503,DVF-3050
AA AB
FL901
1
2
4.9V
+5.5V
3
4
27V
5
1G
6
2G
7
3G
8
4G
9
5G
39 10
G6 6G
38 11
G7
37 12
G8
13
14
36 15
S20/G9 20P
35 16
S19/G10 19P
34
VEE
33
VDD
32 17
S18/G11 18P
31 18
S17/G12 17P
30 19
S16/G13 16P
29 20
S15/G14 15P
28 21
S14/G15 14P
27 22
S13/G16 13P
23
12P
24
11P
25
10P
26
9P
27
8P
28
7P
29
6P
30
5P
31
4P
32
3P
33
2P
34
1P
35
36
37
38
CN1
F1
TH1
1
2
2 1
CN2
MCN1
2 1
6G 5G 4G
P1 1a 1a
MSW1
P2 t1 1b 1b
P3 t2 1c 1c
POWER P4 t3 1d 1d
SW
P5 t4 1e 1e
P6 t5 1f 1f
P7 DVD 1g 1g
P8 VCD 1h
(FRONT BOARD)
P9 C D TITLE 1n
IC901 : UPD16311-QFP40
CHAP
P10 MP3
RM901 : W02-2801-08
P11 2a 2a
D901,902,904 : 1N4148
D905 : 1N4004
P12 PCB 2b 2b
P13 2c 2c
P14 2d 2d
P15 2e 2e
P16 2f 2f
P17 2g 2g
P18 TRACK
P19 Dp Dp
P20 RESUME INTRO
DV-502/503/DVF-3050/3550
Y22-8580-10
AC AD
CAUTION: For contin-
ued safety, replace safe-
ty critical components
only with manufacturer's
recommended parts
(refer to parts list).
indicates safety critical
components. For contin-
ued protection against
risk of fire, replace only
with same type and rat-
ing fuse(s). To reduce
the risk of electric shock,
leakage-current or resis-
tance measurements
shall be carried out
(exposed parts are
acceptably insulated
from the supply circuit)
before the appliance is
returned to the customer.
The DC voltage is an
actual reading measured
with a high impedance
type voltmeter with no
signal input. The mea-
surement value may vary
depending on the mea-
suring instruments used
or on the product.
3G 2G 1G
1a 1a 1a
1b 1b 1b
1c 1c 1c
1d 1d 1d
1e 1e 1e
1f 1f 1f
1g 1g 1g
HOUR MIN SEC
1n REPEAT 1n
col col
2a 2a
2b 2b
2c 2c
2d 2d
2e 2e
2f 2f
2g 2g A
2j 2j B
RANDOM 1
PROG. ALL