Kenwood DM-VH7, Service Manual

Page: 15 / 26

L M N O A B D F H C E G I J K
2
1
3
5
7
4
6
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20
21
22 23 24
MORFO
MORFI
RFO
OPN OPO
ADD
COMPP
COMPO
AGCI
RF
AGC
RF
PEAK
GND
TEMPI
TEMPR SWDT SCLK XLA
T
XSTBY FOCNT VREF EQADJ 3T
ADJ
VCC
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
I
J
VC
A
B
C
D
E
F
PD
APC
APCREF
BOTM
APCD
FE
AUX
ADFG
ADAGC
ADIN
ADFM
SE
CSLED
TE
WELAD
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TRK-
TRK+
FCS-
FCS+
K
PD
VR
MOD
ILCC
LD-GND
VCC
J
B
A
VC
I
F
C
D
E
VEE
1
4
1 2 3 4 5 6 7 8 9 10 11
DISC ID HEAD POSI
LOAD SW SL
T
SW
LOAD M- LOAD M+ SPDL- SPDL+ GND SLED- SLED+
1
2
3
4
5
6
7
8
9
10
TE1
TE2
FE2
FE1
RF
TP1
TP2
F
E
VC
1
2
3
4
5
6
7
8
9
10
DO0
DO1
XWE
XRS
A9
A0
A1
A2
A3
VCC
20
19
18
17
16
15
14
13
12
11
GND
DO2
DO3
XCA
XOE
A8
A7
A6
A5
A4
C1
17 0.1
C1
16 0.022
R180 10K C188 0.01 R184 10K
C1
15 0.22
C200
10
L5
L6
0.022
C109 470K R107
10K
R104
1000P
C106
R158 100K
R177
3.3K
R188
10K 10K
R189
3.3K
R175
C158 6800P
100K
R159
C189 0.033
R190 10K
C102
0.1
10u10
C101
+
10K
R185
47K
R179
C111 0.068
C112 4700P
R147 100
C113 1
100
R146
220
R150
2
3
1
5
4
1K
R103
10K
R1
10
R1
12
47K
R1
13
1K 1K
R1
15
C108 0.1
C169 10u10
+
L8 L7
C167 0.1
2.2
R166
1
R169
1/2W
C107 0.1
R165 100K
C168 0.1
680
R164
470K R1
17
3.3M
R106
R105
4.7K
4.7K
R167
C164 0.01 C163 0.01
C141 0.1
2.2K
R161
2.2K
R162
GND
VCC
5 4
3 2
1
C105
0.01
C153
8
5
6
7
9
3
4
3
9
8
9
8
3
R108 1K
R109 1K
0.01
3
7
9
8
4
5
6
10u10
C1
19
+
C104 10u10
+
C103 10u10
+
7
6
7 6
Q2
12
11
12
11
Q2
32 34 36 37 38
31
44 43 39
43
44
39
40
37
38
36
31
32
33
34
R132 100K
0.47
C129
0.01
C128
10K
R131
100P C130 680K R133
C132 0.47 3.3K
R135 R136 1K
R134 1K
150
R140
0.015
C131
0.1
C124
10u10
+
75
74
23 21
L4 100uH
C161
10u10
92 91
93
94
94
91
92 93
L3 100uH
10u10
C160
C156 0.1
10uH
L1
86 85
88 89
27 25
6 8
R148
100 560
R141
20 19 18 17 16 15 14 13 12
11
1 2 3 4 5 6 7 8 9 10
0.1
C182
82 81 80
99
100u6.3
C181
+
C197 0.1
C152 0.1
C151 100u6.3
+
79 78
81
80 83 82 85 89 88 86
0.1
C134
R142 10K R143 10K
C142 100P C143 100P C144 100P
C122 0.01
R121 100K
82
90
91
89
88
87
83
85
84
98
81
78
97
R7 10K
R5 10K
R125 220
R1 220
100u6.3
+
10
9
8 7 6
NC VS OT1 VRF IN1
1 2 4 5 3
IN2
VCC
OT2
NC
GND
4.7K
R40
3
2
1
4
5
1 4 2 3
12
21
23
10
75
74
67
66
65
64
63
83
79
5
R137 C133
4700P
C13 6P
C12 6P
1M
R127
X1
512fs
10u10
C186
+
470u6.3
C1
+
48 47 44 43
3 8 8 6
25 27
8
3
L9
68
1/4W
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
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
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
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
A/D CONVER
TER
ANALOG MUX
ADIP DECODER
AUTO
SEQUENCER
EFM/ACIRC
ENCODER/DECODER
COMP
PLL
DIGIT
AL
AUDIO
SAMPLING RA
TE
SERVO
DSP
PWM
GENERATOR SPINDLE
A
TRAC
SERVO
I/F
4
CONVER
TER
ENCODER/DECODER
4
12
BLOCK
CPU I/F
CONTROL MONIT
OR
MEMOR
Y
CONTROLLER
SHOCK RESIST
ANT
PROCESSOR
SUBCODE
GENERATOR
CLOCK
BLOCK
BLOCK
68
64
65
67
66
63
100
C135
0.1
C184
33
R144 220 R145 220
40 51
50
51
50
0.1
C1
10
C121
L11
+
100u6.3
C136
C123
0.1
R14 4.7
28 27
R6 10K
22.5792MHz
96
92
19
21
R123 220
2.2K
R163
16 15 14 13 12 11 10
9 8
17 19 18 21 20 22 25 24 23
FACE
INTER-
PRE DRIVE
PRE DRIVE
INTER-
FACE
7 6 5 4 3 2
30 26 28 27 29 32 31
VDD
PRE DRIVE
PRE DRIVE
INTER-
FACE
INTER-
FACE
6 OSC
PUMG
CHARGE
1
PSB
C185
1000P
3
2
15K
R126
6.8K
R120
R1
19 8.2K
R122
6.8K
R129
10K
220P C1
14
330P
C125
C159
0.1
R130 10K
C127 470P
C157
C126 470P
R128 10K
R138
0.1
10
R124 15K
C120 330P
W8
10uH
L2
W9
1
R139
1
10K
R1
16
10K
R
111
R1
14
10K
49 48 46 47 45
78
46
45
47
49
48
10 12
10
12
10
12
R1
18 8.2K
R9 100
R8 100
+3.3V +3.3V +3.3V +3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V +B
+3.3V
+B +B
+3.3V
+B
+B
+3.3V +3.3V
+3.3V
+3.3V
+3.3V +3.3V +B +B
+B
+B
+B
+B
+B
+B
+3.3V +3.3V
+5V
+5V
+5V
+5V +5V
+3.3V
+B
+B
40
41
3.3K
R41
0.1
C1
18
+B
+B +B
+B
+B
+5V +5V
+5V +5V
+5V
+5V
+5V
+B +B
+B
+B
+B
+B
+B
+B
5V 5V
5V
5V
5V
5V
5V
29
Q7
Q7
97
100
+5V
B
+B
W6,12
L2
A
R111,114
YES
NO
-00
NO
YES
-01
IOP2
IOP1
9
8
10
12
16
3
14
13
1
+5V
+5V
+B
+B
+B
+B
+B
+B +B +B
+5V +5V
+5V
+5V +5V
HEAD POSI
LOAD M LOAD M
R1
82K
2 1 4 3
GND
2 1 4 3
SLED
SLED
2
1
GND
SPINDL
SPINDL
3
4
5
LOAD M
LOAD M
SLT SW
6
7
8
33K
LOAD SW
HEAD PO
DISC ID
9
10
R4
22K
11
R2
R3
33K
IC1
IC2
IC8
IC7
IC3
IC5
IC30
(X33-1190-00)
(X29-) (B/2)
(X29-2650-00) (A/2)
(D40-1637-05) : MDM-06(1)
MD MECHANISM
CN2
CN4
CN3
D101
Q1
Q4 Q5
Q6
Q3
Q7
Q2
(KMS-260B)
PICKUP
BLOCK
RF AMP
LOADING
MOTOR
HEAD
DRIVER
SL/SP MOTOR DRIVE
FOC./TRA.DRIVE
ENDECODER
ACIRIC
ATPAC
4M DRAM
DIGITAL
RF
OUT
IC1 : CXA2523AR
IC2 : CXD2654R
IC3 : HD74UH08
IC5 : BD9711FV
IC6 : BR24C02F
IC7 : HM51W4400BTT-7 or
IC8 : BH6511FS
IC10 : L88M33T
IC12 : AK4522-VF
IC4 : TA8406F
IC24 : HD6432227N01FA
IC30 : TA8409F
Q1 : FMW1
Q2,3 : DTA144EUA
Q4,5 : DTC114YUA
Q6,8,23 : 2SA1576A(R,S)
Q7 : 2SB798-DL
Q9 : DTA124EUA
Q10-13 : DTC124EUA
D1,2 : F1J6TP
D101 : MA111
ADJUSTMENT
APC
MN41V4400TT-08
SHOCK PROOF
VG
LD
CHANGE
-OVER
D1
D2
ON/OFF
LD
DRIVE
Q12
Q13
OPTICAL
EFM
-M
ON
LOAD
LOAD
+M
ON
Q9
IC4
10
INPUT OUTPUT
IN1 IN2 1 8 OUT1 OUT2 3
MODE
L L
L H
MOTOR
STOP
L H
L
H
H
H H L
L
L
CW/CCW
BRAKE
CCW/CW
HEAD
OVER
WRITE
DIGITAL LINE
GND LINE
SIGNAL LINE
B LINE
B LINE
IC30
DM-VH7
(1/2)
(2/2)
IC4
A
LOAD
SLT
DISC
REFLECTION
ID
S3
S2
S1
DISC
PROTECT
SLED
MOTOR
M
MOTOR
MOTOR
M
LOADING
M
PLAY POSI
CN1
REC POSI
S4
S5
0.3V
0.3V
2.5V
1.4V
1.6V
1.6V
1.6V
1.6V
1.4V
1.7V
1.8V
1.8V
0.3V
3.3V
3.1V
1.7V 1.7V 1.7V 0V 2.3V 0V 2.2V 1.2V 1.8V
1.6V
1.7V
1.6V
1.6V
1.7V
1.6V
1.2V
1.6V
1.9V
1.4V
1.6V
1.4V
0.4V
3.3V
0.4V
3.3V
3.2V 3.2V 3.2V
3.3V 2.8V
3.3V 3.2V
2.5V
2.8V
2.5V
2.7V
2.9V
0V
3.1V
3.3V
3.1V
2.6V
1.8V
3.3V
0.2V
3.2V
0.2V
1.4V
1.4V
3.1V
3.0V
0.4V
3.1V
0.4V
0.4V
0.4V
1.6V
1.6V
3.0V
0.5V
2.9V
2.9V
3.0V
2.9V
2.9V
3.2V
1.4V
1.4V
1.6V
1.6V
3.2V
0.3V
1.6V
1.5V
1.5V
1.7V
1.9V
1.6V
1.4V
1.6V
1.4V
1.6V
1.6V
3.2V
1.7V
1.7V
3.2V
3.2V 3.2V 0.8V 1.6V 0V 0V 0.2V 3.2V 0V 0V 0.2V 0V 0.6V 3.2V
3.2V
0V 0V 0V 0V 0V 0V
3.2V
0V
3.2V
3.2V
3.1V
3.0V
3.1V
1.2V
3.1V
3.2V
3.1V
3.2V
0V
3.1V
0V
1.4V
1.0V
3.3V
3.3V
1.6V
0V
0V
0V
1.2V
1.6V 1.6V 3.0V 2.9V 0.5V 3.0V 3.1V 3.1V 0.4V 0.4V 0.4V 0.4V 3.0V 2.9V 2.9V 2.9V 3.2V 1.2V 1.5V 1.6V 1.9V
3.3V 3.2V
5.1V
REC: MAX4.5V
5.1V
REC: MAX1.5V
3.2V
0V
3.2V
0.3V
0.3V
0.3V
0.3V
5.1V
0V
-5.4V
0V
0.6V
5.1V
5.0V
5.1V
0.6V
3.0V
5.0V
5.0V
0V
5.0V
0V
2.5V 7.2V 0V 0.3V 5.1V 0 0V 5.1V 0V 0V 5.1V 0V 0V 3.2V
0V 9.3V 0.6V 3.2V 5.1V
0.9V
0V 5.1V 0V 0.3V 5.1V 0V 0V 3.2V
The DC voltage is an actual reading measured with a high
impedance type voltmeter. 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 RECORD-
ING.
DM-VH7(K) PCBSD2,2P( 99.10.29 2:48 PM y [ W 1
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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