Kenwood DM-VH7, Service Manual

Page: 16 / 26

Q S U W P R T V Y X
Y22-8050-11
DM-VH7
) (
) (
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
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
CE
MODE2
FWE
EXTAL
VSS
XTAL
VCC
STBY
NMI
RESET
MODE1
MODE0
AVCC
VREF
SCL
SDA
VCC
VSS
76 77 78 79 80
81
82 83 84 85 86 87 88 89 90
91
92 93 94 95 96 97 98 99
100
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
CTXD CRXD DQSY SQSY XLA
T
SWDT SRDT SCLK HMUTE SENS MNT3 MNT2 MNT0 MNT1 XINT TX RECP XRST LDON RMS
IDSW
HEADPOS
BITRA
TE
DISCINSW
SL
TSW
A
VSS
LOADM-
LOADM+
EMPHA
ADDARST
MUTE
POWER
FRDT
FWDT
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 H+5V
HGND
+3.3V(OUTPUT)
BACKUPV
CTXD
CRXD
BACKON
CE
MECHARST
AINR(DATA)
DGND
AINL(BCK)
-5V(GND)
DGND
GND
AOUTR(LRCK)
A+5V
AOUTL(MCK)
D+5V
DIN2
M+5V
DIN1
M+5V
MGND
DOUT
MGND
1 2 3 4 5 6 7
12 11 10 9 8 7 6 5 4 3 2 1
SDTI
SCLK
LRCK
DIF1
DIF0
AGND
VA
AINL-
AINL+
NR-
NR+
REPH
13 14 15 16 17 18 19 20
21
22 23 24
SDT
O
SMUTE DEM0 DEM1 NCKI VD DGND PD CMODE AOUTL AOUTR VCOM
C37 0.1
C39 4.7u25
+
C35 2200P
R3 150 C36 0.1
C38 4.7u25
+
C34 2200P
X2
10MHz
3.3K
R176
87 88 89 90 91 92 84
R182 47K R183 47K R172 47K R181 47K
0.1
C166
1
2 3
100u6.3
C190
+
100u6.3
C187
+
32 31
6 7 8 5
2 1 4 3
39 38
10K
R170
10K
R171
0.1
C171
R52 10 R53 10
R4 150
+5V
10u10
+
0.1
0.1
10u10
C41
+
+
10u10
R10 100
R11 100
1K
R178
37
41
40
47
44
43
48
R16 470K
R15 470K
66 67
C170 0.1
R168 4.7K
+5V
+5V
76
77
R17
39 37
38
66 67
31
32
+B
+B
+B
+B +B +B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
R186 470K R187 470K
R173 R174
78 81 82 85 83 77 76 98 96
2.2
R2
R149 100
+5V
47K
100 99
27 28
97
47K
21
19
75
59
75
C33
C40
C32
C31
+5V
0.1
C44
1
+5V
+3.3V
+5V
+5V
+5V
+5V
W12
+3.3V
+3.3V
OUT GND IN
+5V
+5V
+5V +5V
+3.3V
4.7
R160
100u6.3
C198
+
+3.3V
+3.3V
+3.3V
+3.3V +3.3V +3.3V
+3.3V
R13 100
+3.3V
+3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+5V
59
+5V
+5V +5V +5V
+B
5V 5V 5V 5V
59
59
29
97
+B
+5V
+B +B
IC24
IC12
IC10
IC6
DM-VH7(J/K) (1/2)
A
CN1
CN5
Q10
Q8
Q11
MD MECHA
u-COM
3.15V AVR
3.3V AVR
DA/AD
CONVERTER
DIGITAL
REC
DIGITAL
IN1
IN2
DIGITAL
PLAY
E2PROM
X25-A/3
2/2
-CN4
3.2V
3.3V 3.3V 3.3V 3.2V 0V 0V 0V 0V 0V 0V 2.0V
3.2V
0V
3.2V
3.2V
1.3V
1.5V
3.2V
3.2V
3.3V
1.8V 0.9V 3.2V 3.1V 3.1V 3.1V 1.2V 3.0V 3.2V 3.1V 3.2V 3.2V 3.2V 0V 0V 0V 3.2V 3.1V 3.1V 3.1V
REC: 0.4V
REC: 3.2V
3.2V
0V
0V
3.3V
3.3V
2.6V
0V
5.0V
1.6V 1.0V 1.6V
3.3V 3.3V 2.5V 2.5V 2.5V 2.5V
4.9V
3.2V 3.3V 1.6V 0V 1.1V 3.2V 2.5V 0V 2.5V
3.3V 5.1V
(X33-1190-00)
2SA1534A
DTA144EUA
DTC114YUA
DTC143TUA
UN5119
UN5216 2SA1576A
2SA1586
2SC4116
2SD2061
FMW1 2SB798-DL 2SD2012
DTA124EUA
DTC124EUA NJM4565M BA17805T
UPC7805AHF
UN5212 2SK246 HD74LVC08T
DA204U CXA2523AR TA8409F
BH6511FS HD74UH08
SM6451AV L88M33T
BD7911FV
CAUTION: For continued safety, replace safety critical compo-
nents only with manufacturer'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-cur-
rent or resistance measurements shall be carried out (exposed
parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.
DM-VH7(K) SD2P( 99.10.29 3:20 PM y [ W 3
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