Kenwood DM-SE7 Service Manual page 12

AJ AK AL
(X25-6012-71) (B/3)
Q Q
X25-A/3
3 7 6 3 1 5 1 5 0
-CN3
1
2/3
C
CN1
FIL 27
H+5V 26 H+5V
FIL 25
H.GND 24
2
ADDT 23
GND 22
+5V 21 +5V
+5V 20 +5V
X25-A/3
VLDATA 19 19
-CN2
U.GND 18
DOUT 17
2/3
OCLK 16
VLLAT 15 15
D
F.OFF 14
M GND 13
BCK 12 12
DARST 11 11
DADT 10
EMPHA 9 9
DIGITAL
3
LRCK 8 8 PLAY
DINSEL 7
DIGITAL
TXD 6 6 REC
VLCK 5 5
RXD 4 4
-30V 3 -30V
512FS 2
MUTE 1 1
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
C123 0.1
C119 0.1
+5V
DIGITAL
REC SEL.
5
IC6
1.6V
3.6V
R119
1K
-30V
6
w w w
LM1972M DTA144EUA TC7SU04F CXA2523AR
DTC114YUA LC8904Q
DTC143TU
UN5216
2SA1586
2SC4116
7
AM AN AO
R125
+7.5V +7.5V +7.5V
220
-6.5V -6.5V -6.5V
+
IC2
REC
IC3(1/2)
7.5V
7.5V 8 VOLUME
C19 5 C11
R17 10u25 + 4.7u35
7 7
5.1V
6
470 + - +
R11 2.7K R7 220
IC2
R106
10K
R12 2.7K R8 220
C20 2 5.2V C12
R18 10u25 1 - 0V 4.7u35 1
3 0V
470 + + +
IC1(2/2)
4
IC3(2/2)
R117
330
+7.5V
-6.5V -6.5V -6.5V
Q3.4
+ +
R22 C26 8 IC5(2/2)
0V C109 10K 10u25 C30
5
470u6.3 + 10u16
7
+
5.2V + 6
+
-
1.6V
R109
330 R26 R28 15K
22K C28 100P
5.2V
IC4
5.2V
C27 100P
R25
22K R27 15K
2.5V
2 C29
5.2V 2.6V
R21 C25 - 1 10u16
+5V
C115 10K 10u25 3
R116
C111 + +
10
R108 100u10 0.01 +
IC5(1/2)
2.6V 4
+
10K 2.6V
Q12
0V
R110
IC4 1.2K
AD/DA
CONVERTER
MUTE
CONTROL
5.2V Q5
( 1 )
C132
D33
100u10
+
+7.5V +7.5V
+5V
5.2V
Q6 5V AVR
+5V +5V +5V
2.5V
1/2FM
IC9
IC8
VREF
OUT
GND
2.5V 5.8V
7.5V
0V
Q13
IC7 +
C120
0.1 +
R121
MASTER 10
R122
CLOCK FM 100
-6.5V
C124 -32V
AVR
AVR
C139 47P
100 -6.3V
-6.5V -6.5V
-31.4V
Q11
-30V -30V
x a o
TC7WU04FU CXD2652AR HD74HCT126FPEL
HD74HC74FPEL
5
. i
8
8
4
14
7
1
1
AP AQ AR
(X14-4660-00) (A/2)
ED1
11G 10G
P36
PGM
P11
IC1(1/2) P12
8 C3
5 1u50 R1
+
+ 1K
6 P13
-
J1
1 Lch
INPUT
2
- C4
3 1u50 R2
2 Rch
+
+ 1K
4
ANALOG
3 Rch
Q1,2
MUTE OUTPUT
DRIVER MUTE
0V
R32 R34
4 Lch
2.2K 1K
Q4
R114
Q2
1.2K
CN1
0V
F 13
FLB 12
F 11
DRRST 10
0V
U+5V 9 U+5V U+5V
R113
Q1
KS2 8
1.2K
Q3
R31 R33 GND 7
2.2K 1K KR3 6
0V DRCE 5
R11 10K
KR1 4
C3 0.1
Q Q R8 10K
REM 3
3 C2 0.47 7
R4 10K
DRDT 2
DRCK 1
R14 10K
R13 10K
D10
P1 R12 10K
D11 5.2V
C1
D9 10u6.3
+
D8
5.2V 7.5V
U+5V
Q9
5.1V
+5V
C16
IC10
1000P
VREF OUT
GND
5.4V
5V AVR
+7.5V
(X14-4660-00) (B/2)
7.5V
E1 L1
+
+
E1 CN2
FIL
-32.0V 6 6
8.2Vpp
FIL + + D19 D20
5 5
F.OFF
Q10 C126 4 4
100u10 +7.5V
+7.5V 3 3 +7.5V
+
R130 3.3K -B
-48V 2 2 -48V
1W GND
-48.0V 1 1
WH1
-48V
u 1 6 3
CAUTION: For continued safety, replace safety critical components only with man-
y
ufacturer's recommended parts (refer to parts list). indicates safety critical com-
ponents. For continued protection against risk of fire, replace only with same type
and rating 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.
AS AT
AU
8 9 2 4
9G 8G 7G 6G 5G 4G 3G 2G
P36 P36 P36 P36 P36
REPEAT SINGLE TOTAL REMAIN TITLE SEARCH
U+5V
5.2V
C6 1000P
R15 100K
Q1
-28.7V
-28.7V
-28.7V 49
( 6G ) G6
-28.7V 50
( 5G ) G5
-28.7V 51
( 4G ) G4
32 -19.2V
AM32 32
-28.7V 52
( 3G ) G3 31 -28.3V
-28.7V 53 AM31 31
( 2G ) G2 30 -23.8V
-28.7V 54 AM30 30
( 1G ) G1 29 -30.4V
-31.3V 55 AM29 29
VFL 28 -23.7V
AM28 28
56 27 -26.0V
AM27 27
TEST
IC1 26 -19.0V
57 AM26 26
VSS DOT MATRIX 25 -23.6V
2.6V 58 AM25 25
DRIVER
OSCO 24 -30.4V
AM24 24
23 -23.4V
2.6V 59
AM23 23
OSCI
O.T.E
5.2V 60 22 -21.3V
AM22 22
U+5V VDD
21 -26.0V
6 3 1 5 1 5 0 8
AM21 21
20 -30.5V S11
5.2V 61
AM20 20
RES
19 -28.3V
AM19 19
0V 62 18 -21.3V
CE AM18 18
17 -28.3V
R20 AM17 17
100 5.1V 63
CL S10
R19 0V 64
DI
100
REMOTE
SENSOR
S9
A1
3
VCC
2
OUT
1
GND
D13
(X25-6010-00)
POWER
D14 IC1 : NJM2115M
TRANSFORMER
7.5V AVR
18.0V IC2 : LM1972M
11
Q2 IC3 : NJM062M
12
+18V + ~ IC4 : AK4520-VF
13 5
IC5 : NJM2100M
Q4 - ~ CN3
14 4 IC6 : TC74HC00AF
2
D1
17.6V IC7 : TC7SU04F
15 3
T.F IC8 : HD74HC74FPEL
16 2
Q3
+ 1 IC9,10 : LM431AIZ
17 1
130 C
18
6.8V
DIGITAL LINE
+
SIGNAL LINE
GND LINE
D12
+B +B LINE
-B -B LINE
m
c o
The DC voltage is an actual reading measured with a high impedance type volt-
meter. The measurement value may vary depending on the measuring instruments
used or on the product. Refer to the voltage during RECORDABLE MD PLAY
.
unless otherwise specified; The value shown in ( ) is the voltage measured at the
moment of STOP. The voltage followed by (REC) refers to the value during MD
RECORDING.
AV AW AX
9 8 2 9 9
1G 12G
P14
P9 P11 P12 P16
P36
DIGITAL 1 2 C.T. MANUAL
P8 P10 P13 P15
CD TEXT O.T.E. MONITOR
L
30 10 5 3 1 0
(-dB)
R
S1
L
P17
S2
30 10 5 3 1 0 (-dB)
P26
S3
R
P35
B1 B2 B3 B4 B5 B6 B7 B8
P18 P19 P20 P21 P22 P23 P24 P25
B9 B10 B11 B12 B13 B14 B15 B16
P27 P28 P29 P30 P31 P32 P33 P34
(12G)
P1 P2 P3 P4 P5
1-1 2-1 3-1 4-1 5-1
P6 P7 P8 P9 P10
1-2 2-2 3-2 4-2 5-2
9 2 4 9 8 2 9 9
S8 S4 P11 P12 P13 P14 P15
1-3 2-3 3-3 4-3 5-3
P16 P17 P18 P19 P20
1-4 2-4 3-4 4-4 5-4
S7 S3
P21 P22 P23 P24 P25
1-5 2-5 3-5 4-5 5-5
P26 P27 P28 P29 P30
S2
S6
1-6 2-6 3-6 4-6 5-6
ON/STANDBY P31 P32 P33 P34 P35
1-7 2-7 3-7 4-7 5-7
D15
S5 S1
(10G~1G)
D16
WH1
(X14-4660)
Q1,2 : 2SD1450(S,T) IC1 : LC75710NED D1 : D3SBA20F03
Q3,4 : 2SA1586(Y,GR) or D5 : RD7.5JS(B2)
2SA1611(M5,M6) Q1 : 2SC4116(Y,GR) or D6 : DINL20U
Q5,12 : UN5212 or 2SC4177(L5,L6) D7,13,14,17-20 : HSS104A or
DTC124EUA Q2 : 2SB1167(S,T) or 1SS131
Q6 : 2SD2061 or 2SB1168(S,T) D12 : S5688B or
2SD2012 Q3 : 2SC3311A(Q,R) or 1SR139-400
Q9 : 2SC3311A(Q,R) or 2SC2458(Y,GR)
2SC2458(Y,GR) Q4 : 2SK246(Y) ED1 : BJ565GK
Q10,11 : 2SA954(L,K) A1 : W02-2571-05
Q13 : 2SC2003(L,K)
D2 : UDZ3.9B
D3-7,16,33 : MA111
DM-SE7/SE7(G)/SE9(K) (3/3)
D13,14 : UDZ16B
D15 : UDZ6.2B
D17 : UDZ5.6B
D18 : UDZ8.2B
2SK246 TC7S08FU 2SD2061
DM-SE7/SE7(G)/SE9
Y22-7210-00