Kenwood DM-3090 Service Manual page 39

PCB/SD 2P 97.11.29 2:05 AM y [ W 5
AE AF
IC601
R607
(1/2)
1K 3
+ 1
C607 2
-
220P
R611
8 7.6V
1.5K
C611 +7V
47P +
IC601
(2/2)
R608
1K 5 R618
+ 7 330
C608 6
-
220P
R612 7.6V
4
1.5K
C612
47P
+
+7V
C221
0.022
+BV
1 +
L202
3 GND 2
IN OUT
10uH
3.4V 8.1V
IC501
5V AVR
C220
1000P
C222
0.022
NORMAL:4.7V
LOADING:0V
Q505
+
+7.5V
NORMAL:5.3V
LOADING:6.7V
C524
1000u6.3
+
4 3 2 1 1 2 3 4
CNP471
AG AH
R617 C451 R451 R455
330 47u10 330 100
+
+
-6.4V
-6.4V
Q601
R619 R457
10K 10K
PHONES
MUTE
Q451
-6.4V
Q602 R620 R458
10K 10K
C452 R452 R456
Q452
47u10 330 100
+
R667
7.8V
+7V +7V
82
+
C614
IC651
47u10
C655 R653 R681
(1/2)
+
10u16 1K 1K 8
5
+ 7
+
C653
6
-
27P
C654
2
C656 R654
+ 1
10u16 1K R682 27P
3
-
IC651
+
1K 4
R668 82 -8.0V (2/2)
-7V -7V
+
MUTE
-6.4V
DRIVE
Q653
D651
-3.8V
R670 330 -6.5V
+7V
-7V
C510 -7V AVR -8.3V
1u50
+
Q502
R506
D503
100
-8.9V
-13.0V
R501
C509
8.2
47u25 R505
-BV -BV
680
+7V
+
C512
1u50
8.1V
+ +
+
Q503
R508
D504
7V AVR
100 8.8V D551 D554
10.7V R502
C511 R507
8.2
47u25 680
+BV
+
R509
C513 47u25 820
+ 10.7V D552 D553
Q504
R510
D505
100 6.5V
6.0V
5V AVR
D513
C514 +
+
10u16 +
+
C561 0.01
NORMAL:0V
LOADING:4.0V
R551 D555
Q501
-36.5V 8.2Ω
R517
31.0V 220
+
-31.6V
D507
R518
D501
220
11.3V -31V
R511
Ω
0.8
Q506
-31V
AVR
7.5V AVR
+5V +5V
R516 R514
D508
220K 100K
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
CNP472
AI AJ
J101
Lch
CNW903
LINE AUX AMP R IN
PLAY OUT
AUX AMP L GND
AUX AMP L IN
Rch
AUX AMP R GND
AUX VR L OUT
GND OPEN
PHONES
AMP
AUX VR R OUT
HP AMP GND
HP AMP L OUT
HP AMP R OUT
CNP473
1 AUX AMP R IN
2 AUX AMP I GND
RESET SW
3 AUX AMP L IN
NC
4 AUX AMP R GND
5 AUX VR L OUT CNP902
6 GND
FILMNT 2
FILMNT 1
7 AUX VR R OUT
8 HP AMP GND
AD5V
9 HP AMP L OUT
BACK-UP5V
MAIN SECTION
IC101,651 : NJM45600
10 HP AMP R OUT
u-COM GND
IC201 : uUDA1340
SW501
IC301 : 74HCU04
11 RESET SW IC302 : 74HC10AP
-31V
IC501 : ISB1233SOYX
12 NC
IC601 : NJM45800
Q451,452,601,602 : 2SC28788
D-1, 2
Q501 : KTA1266GR
Q502 : 2SB582-C
DAC CLK
Q503 : 2SD488-C
DAC MODE
Q504,506 : 2SD2012Y(FIN)
DAC DATA
Q505 : KRC1024M
Q653 : KRC102M DFS
MD DSCK
D301 : MTZJ5R18
MD K-DATA
D501 : MTZJ6R88
D502 : MTZJ3308
MD 7.5/5V
D503 : MTZ9R18
MD DSTB
D504 : MTZ9R19
P-IN
D505 : MTZ6R8A
D506 : MTZJ7R58 MD P-OUT
D507 : MTZJ5R8C
P-CNT
D508 : MTZJ2700
P MUTE
D509,510,512,513 : ISS133
MD DATA
D551-555 : RL104A
D651 : SR19 MD RESET
MD S-ID
MD LOAD
MD SYN
(J)TYPE
F551 T551
1A 125V
HLD551 HLD552
F552 1A 125V
HLD553 HLD554
AC100V
50/60Hz
(E/T)TYPE
F551 T551
T1.0A 250V
HLD551 HLD552
F552 T1.0A 250V
HLD553 HLD554
AC230V~
50Hz
AK AL
DISPLAY SECTION
1
REC
2 LEVEL
3
4
5
6
7
8 HEADPHONE
CNW901
9
1 1
PHONES
J981
2 2
10
PHONES
LEVEL
3 3
11
12
24
23
22
L901
22uH
21 +5V +5V
+
20
19 -31V -31V
18 10
17 15
+
16 14
R902
15 16
14 18
13 20 RA902 1K
12 21 RA903 1K
ENTER
11 23
SW951 SW956
10
9 29 RA904 1K
8 31 NAME
7 30 SW952 SW957
6 33
5 RA908 1K
B A ( 10 )
REC TIMER/
4 44
DELETE
SW953
3 43
SW958
2 42
1 41 RA912 1K
G
( 14 )
SW901 RA913 1K
DISPLAY/
SW954 ( )
15
CHARAC
RA914 1K
( 16 )
SW959
MULTI CONTROL
(JOG DIAL)
RA916 1K
( 18 )
RA918 1K
SW960 (
20 )
RA927 1K
( 21 )
RA919 1K
TIME
( 23 )
DISPLAY
SW961
3.0V
R921
10K
RA925 1K
Q901 ( 29 )
R923
RA926 1K
0.3V 10K
( 30 )
3.0V
R922
10K
Q902
R924
10K
0.4V
+5V
REMOTE RESET IC
SENSOR
IC902
4.2V 4.2V 5.1V 2 1 5.1V.
OUT IN
+
GND
+
3
UN970
AM AN
12G 11G 10G 9G 8G 7G
-
TOC DISC TRACK DATE
1a 2a 3a 5a 6a
TOTAL
4b
4c
REMAIN
MONO LP PRGM RANDOM TIMER REC
13G 14G
+5V
5.1V
1
KEY1
0.2V 2
KEY2
5.1V 3
KEY3
4
KEY4
2.8V 5
INI/MUTE IN
5.1V 6
JCG AD
7
8
9
PLAY:0V
REC:5.1V 10
DIG SEL 1
11
DIG SEL 2
12
13
5.1V 14
DAC MODE
5.1V 15
DAC CLK/EX
5.1V 16
DAC DATA/EX
17
0.8V 18
DFS0/DFS1
3.0V 19
(MD) DSTB
4.2V 20
(MD) DSCK
0.4V 21
(MD) K-DATA
3.7V 22
(MD)MD DATA
5.1V 23
(MD) LO/EJ
24
25
26
27
28 4.2V
1.8V 29 5.1V 5.1V
P-IN
5.1V
30
P-CNT 5.1V
C904
68P
C905
12P