Kenwood DM-VH7, Service Manual

Page: 18 / 26

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
16 15 14 13 12
11
10
9
8 7 6 5 4 3 2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
NC NC NC NC NC NC NC
VSS
NC NC NC NC NC NC NC
A0
D0
D1
D2
D3
D4
D5
D6
D7
CS2
LAT
IRQ0
RD
WR
CS1
NC
NC
AN2 AN1 AN0 A
VSS
MD0 MD1 XT
AL
VSS STBY VCC FL-RST SCK DA
T
A-IN
DA
T
A-OUT
NC
VCC
NC
NC
NC
NC
NC
NC
NC
NC
AVCC
AN7
AN6
AN5
AN4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
NC
CS1
RES
A0
WR(R/W)
RD(E)
D0
D1
D2
D3
D4
D5
D6
D7
VDD
VSS
VOUT(-10V)
CAP3-
CAP1+
CAP1-
CAP2-
CAP2+
V1
V2
V3
V4
V5
VR
IRQ
NC
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
REM
DISP-RST
EJECT
SCK
REC
DATA-IN
STANDBY
DATA-OUT
KR0
LAT
GND
KR1
U+5V
-10V
+5V
B.L.+5V
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
B.L.+5V
B.L.GND
2 1
B.L.+5V
B.L.GND
AN3
EXT
AL
47K
R170 100
R171 100
R172 100
R173 100
R174 100
R175 100
R176 100
R177 100
52
60
62
61
55
56
54
53
51
50
49
R169 100
3 2 1
100K
R166
X2
16MHz
NMI
C153 0.01
100
R146
R168 10K
0.1
C1
16
58
48
62
48
61
60
49
50
51
52
53
54
55
56
C155 0.47
C156 0.47
C157 0.47
C158 0.47
0.47
33K
R180
150K R179
C159
30K
R151
R152 10K
R153 5.1K
R154
3K
R155
2K
5
R156 10K
R157 5.1K
R158
3K
R159
2K
8
430
R161
(RED)
430
(RED)
R162
R163
68
(BLU)
10
12
14
RES
3
IRQ
29
NC
30
VR
V5
28 27
V2
V4
V3
24 26 25
CAP2+
V1
23 22
CAP1-
CAP1+
CAP2-
20 19 21
VOUT(-10V)
VSS
16
CAP3-
18 17
VDD
D7
15 14
D4 D6 D5
11 13 12
D3 D2
10 9
RD(E)
D0
7 6
D1
8
WR(R/W)
A0
5 4
CS1
NC
2 1
+
1000u25
C21
1K
R19
1000u25
C22
+
3300u25
C3
+
0.082
C1
0.082
C2
470 R21
100 R22
750 R23
820 R24
10u16
C23
+
470
R2
470P
C8
L2
82uH
L3
22uH
330
R4
1K R5
1000u10
C9
+
C7 1000u10
+
1W
2W
4
5
+5V
3
GND
REM
1
2
0.01
C160
47K
R181
3
2
1
3
1
2
U+5V
REM
GND
14
12
10
8
5
R145 100
R143 220
R144 220
3
2
1
58
470P
C115
C1
14 470P
20
21
24
7
80
6
78
5
89
4
90
47K
R142 1K
R141
22
+
0.33F5.5
C69
95
25
92
GND
100K
R76
10u16
C74
1u50
C73
R78 10K
R77
1K
R74 R75 10K
OUT
+
IN
1K
100u10
C101
+ +
3K
R79
22
2W
R80
10K
R6
12
10u50
C71
4.7K
R72
4.7K
R73
+
330
R1
19
23
6800P
2 2
2
C30
1ST AC
2
1 1
1 1
5
4
3
1ST AC
2ND AC
2ND AC
3
5
4
AC 120V (K)
AC 100V (J)
10K
R150
10K
R160
0.01
C151
+
47u6.3
C152
Q31-33
0.1
C154
R164
UNIT No.
0-11
DESTINATION
COUNTRY
U.S.A.
ABB.
K
NO
R100
JAPAN
0-00
J
YES
YES
R101
NO
+15.4V +15.4V
+15.4V
+15.4V
+7.5V
+7.5V
u+5V
u+5V
u+5V
u+5V +5V
+5V
+5V +5V
13.7V 13.7V
9.5V
9.5V
9.5V
9.5V
9.5V
9.5V
u+5V
u+5V u+5V
u+5V
u+5V
9.5V 9.5V
9.5V
9.5V
9.5V
u+5V
u+5V
u+5V
u+5V
u+5V
B.L.+5V
B.L.+5V
B.L.+5V
B.L.+5V
B.L.+5V B.L.+5V
+5V +5V +5V
+5V
+5V
+5V
+5V
+5V +5V
+5V
+5V +5V +5V
+5V
+5V +5V
+5V
+5V
+5V
+5V
+5V
u+5V
u+5V
9.5V
0.1 C4
(K)
(J)
(T,E)
: AC120V 60Hz
: AC100V 50/60Hz
: AC230V~ 50Hz
EUROPE E
T U.K.
JAPAN J2
NO
YES
J4
IC12
(X25-) (B/3)
A3
(X25-) (C/3)
(X25-6240-XX) (A/3)
LCD DISPLAY ASS’Y (B30-0180-
DM-VH7(J,K) (2/2)
5)
(BOTTOM VIEW)
CN7
CN5 CN6
CN8
XY-SW
S20
u-COM
DISPLAY
EJECT
O.T.E
LEV.UP
MODE
1/
ON/STANDBY
LEV.DWN
REC
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
D24
STANDBY
Q31
REC
D25
Q32
EJECT
D26
Q33
D1
D13 D11 D12
Q9
Q8
Q1
Q5
Q12
Q11
-9.5V AVR
D30
D2
SWITCHING
+7.5V
Q2
Q10
SENSOR
REMOTE
WH1
E2 E1
IC4 : BA17805T or
UPC7805AHF
IC5 : PST993D-T
IC6,8,9 : NJM4565M
IC7
: SM6451AV
IC10 : HD74LVC08T
IC11 : M30620MC-340FP
IC12 : HD6433297A17F
Q1 : 2SB1143(S,T)
Q2,10,27,31,32 : UN5212 or
DTC124EUA
Q3,11,13,29 : 2SA1611(M5,M6) or
2SA1586(Y,GR)
Q4,17 : 2SD2061 or
2SD2012
Q5 : 2SK246(Y)
Q6-9,16 : 2SC4177(L5,L6) or
2SC4116(Y,GR)
Q12,14 : 2SA1534A(R,S)
Q21 : UN5119 or
DTA113ZUA
Q23,24 : 2SD1450(S,T)
Q28 : UN5112 or
DTA124EUA
Q33 : UN5216 or
DTC143TUA
D1 : D2SBA20F03
D2 : D2L20U
D3 : UDZ4.7B
D4,5,11-13 : S5688B(TPB5)
D7,9,14,21,22 : MA111
D10,30
: UDZ5.6B
D19,20,23 : DA204U
D24,25 : B30-2545-05
D26 : B30-2551-05
Q29
LIGHT
LCD
BACK
ON/OFF
Q28
ON/OFF
BACKUP
D9
D10
RESET
Q16
IC5
RESET IC
5V AVR
Q17
D5 D4
D7
J4
CN1
CN2
DRIVE
LED
(X25-624X-XX) (A/3)
3.2V
3.2V
5.1V
5.0V
4.3V
5.0V
0V
-0.6V
-9.6V
-10.2V
-12.8V -9.5V
5.7V
5.0V
7.6V
5.0V
0V
4.3V
7.6V
5.0V
14.0V
14.6V
4.3V
0V
5.0V
4.7V
4.7V
5.0V
5.6V
13.6V
4.1V
0V
4.1V
0V
0.2V
1.6V
5.1V
5.1V
0V
5.1V
2.2V 1.8V
5.1V 5.1V
5.0V
5.0V 0.7V
5.0V
5.1V
5.0V
5.1V
5.1V
1.1V
5.1V
1.2V
1.1V
1.1V
1.1V
1.1V
1.1V
1.1V
0.4V
B
+B
DIGITAL LINE
GND LINE
SIGNAL LINE
B LINE
B LINE
AJ AL AN AP AR AK AM AO AQ AS
Y22-8050-11
DM-VH7
CAUTION: For continued safety, replace
safety critical components only with manu-
facturer's recommended parts (refer to parts
list). indicates safety critical components.
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 resistance measurements
shall be carried out (exposed parts are
acceptably insulated from the supply circuit)
before the appliance is returned to the cus-
tomer.
The DC voltage is an actual reading mea-
sured with a high impedance type voltmeter.
The measurement value may vary depend-
ing 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 volt-
age measured at the moment of STOP. The
voltage followed by (REC) refers to the value
during MD RECORDING.
DM-VH7(K) SD2P( 99.10.29 3:20 PM y [ W 1
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299