Kenwood DV-K750 Service Manual page 25

Cd/video-cd/dvd player
Table of Contents

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AO
AP
16G
P10
P12
P15
P20
DOLBY DIGITAL
MPEG
PCM
RANDOM
P14
ANGLE
P9
P11
P13
TRACK
CD TEXT
TOTAL
5G
6G
7G
8G
9G
10G
+5V
-31.5V
35
-21.3V
34
-21.4V
33
32
-18.8V
AM32
32
31
-28.6V
AM31
31
30
-36.4V
AM30
30
29
-28.8V
AM29
29
4.9V
28
-31.3V
(
41
)
AM28
28
0V
27
-31.3V
(
42
)
AM27
27
4.9V
26
-28.5V
(
43
)
AM26
26
4.9V
25
-26.1V
IC603
(
44
)
AM25
25
0V
24
-36.4V
C608
(
45
)
VFD / DOT DRIVER
AM24
24
0.01
4.9V
23
-28.5V
(
46
AM23
23
)
4.9V
22
-28.7V
+5V
AM22
22
21
-31.4V
AM21
21
R707 56K
20
-31.2V
AM20
20
R704 56K
19
-28.8V
AM19
19
R705 56K
18
-26.1V
AM18
18
R706 56K
17
-36.4V
AM17
17
3.4V
C621
(
53
)
100u10
1.9V
(
54
)
+
3.7V
C645
C620
(
55
)
1000P
100u10
+
1.3V
(
57
)
2.0V
(
58
)
3.3V
(
59
)
3.2V
(
60
)
+5V
+5V
+5V
IC607
IC607
4.8V
CD TEXT
TIMING
INTERFACE
+
+
AQ
AR
P23
P28
P29
P30
PROG.
L
STEREO
R
P19
P22
P27
REPEAT
ALL
KARAOKE
P24
P25
P26
P16
P18
P17
P21
A
B
INDEX
11G
12G
13G
14G
15G
+5V
41
AC3
42
IFL2
43
IFL1
44
IFD
45
IFS
46
BANK-A
47
VCC
48
IC602
CE
4.1V
49
A14
u-COM
50
A13
51
4.9V
A12
52
A11
53
A10
54
A9
55
A8
56
VSS
57
2.3V
A7
0.3V
4.9V
58
A6
2.5V
0V
59
A5
2.3V
60
A4
+5V
IC604
IC604
CD TEXT DECODER
1.9V
1
3.0V
2
TIMING
&
0V
3
R677
SYNCHRONIZATION
36K
2.7V
4
SIGNAL
PROTECTION
R632 1M
2.4V
5
D606
CIRCUIT
4.0V
6
IC606
2.4V
4.9V
2.4V
IC606
CD TEXT
M-CLOCK
1
6
WAVE PLASTIC
2
5
7
3
4
GND
AS
AT
IC501
: PQ30RV11
Q501,504
IC502
: SI-8050S
Q502
IC503
: LM2940CT-12
Q503
IC504
: PQ20VZ11
Q505,506
P1
P2
P3
P4
P5
IC506
: NJM4565M
Q507
1-1
2-1
3-1
4-1
5-1
IC601
: S-80740AL-A4
Q601-604
IC602
: HD6433397A48F
P6
P7
P8
P9
P10
IC603
: LC75712E
ED601
1-2
2-2
3-2
4-2
5-2
IC604
: LC89170M
IC605
: HM62256BLFP-8T
A601
P11
P12
P13
P14
P15
IC606
: TC7SHU04FU
1-3
2-3
3-3
4-3
5-3
IC607
: TC74HC14AF
P16
P17
P18
P19
P20
1-4
2-4
3-4
4-4
5-4
P21
P22
P23
P24
P25
1-5
2-5
3-5
4-5
5-5
P26
P27
P28
P29
P30
GND LINE
+B
+B LINE
1-6
2-6
3-6
4-6
5-6
-B
-B LINE
P31
P32
P33
P34
P35
1-7
2-7
3-7
4-7
5-7
(1G-15G)
+5V
+5V
R692 47K
R651
R639
R693 47K
11K
2.4K
R694 47K
R695 47K
R650
R638
R641
11K
2.4 K
3K
MIC2
20
4.8V
T-DQSY
19
4.9V
M-READY
19
18
4.9V
REMOTE
17
4.9V
RAM-RD
17
16
4.9V
RAM-WR
16
15
4.9V
RAM-CE
15
14
13
0V
POW.LED
12
VSS
11
2.5V
M-CMD
11
10
4.5V
M-STAT
10
9
4.7V
M-SCLK
9
8
4.9V
VCC
+5V
R640
7
4.9V
STBY
6
4.9V
R709 56K
100K
NMI
5
0V
R676 47K
MDO
4
5.0V
R710 56K
MDI
3
2.1V
EXTAL
2
1.7V
XTAL
1
4.9V
RES
R730
1M
D603
D602
X601
16MHz
78
+5V
80
77
+5V
+5V
14
4.9V
VDD
13
4.8V
CPU
12
1.2V
INTERFACE
CRC
11
4.5V
CHECKER
IC605
256K
32WORD x 8BIT
S RAM
DUAL PORT RAM
10
4.9V
9
0V
8
TEST
AU
AV
: DTC124EUA
D501,503
: 1B4B41
: 2SD2061
D502
: RBV-402LFA
: 2SB1370
D504,515,516
: S5688B(TPB5)
: 2SC2003(L,K)
D505,510
: DAN202U
: 2SB1548
D506,511,523
: UDZ5.1B
: 2SC4081(R,S)
D507
: RK46LF-J4
D512,513
: UDZ2.7B
: 16-ST-20GK
D517
: UDZ6.8B
D518,607,608
: MA113
: W02-2571-05
D519,520
: UDZ13B
D521,610
: UDZ5.6B
D522
: UDZ3.3B
D601-606,613-617
: DA204U
D609
: MA111
D611
: B30-2526-05
D612
: B30-2513-05
(X25- ) (E/10)
E604
E605
WH603
1
3
(
35
)
2
2
S613
3
1
(
36
)
(
37
)
(X25- ) (F/10)
R629
R628
39K
39K
A601
R642
R621
R653
R655
3K
5.6K
11K
33K
E603
E602
WH602
1
1
+5V
2
2
R648
R652
R654
3
3
5.6K
11K
33K
4
4
5
5
I/
ON/STANDBY
MIC2
MIC1
MIC1
MIC LEVEL
(DV-K750)
(X25- ) (G/10)
E607
E606
WH601
1
1
0V
2
2
R646
3
3
4.7K
Q602
0.7V
Q602
R643
DVD LED
DRIVE
3.3K
4.0V
R699
4.7K
Q604
0V
Q604
R700
STANDBY
LED DRIVE
3.3K
0V
R647
4.7K
Q603
0.7V
Q603
R644
POWER
D605
ON/OFF
3.3K
R634
R729
CAUTION: For continued safety, replace safety critical
330
100K
components only with manufacturer's recommended parts
R726
(refer to parts list).
D604
100K
For continued protection against risk of fire, replace only
R635
R728
with same type and rating fuse(s). To reduce the risk of
330
100K
electric shock, leakage-current or resistance measurements
R727
shall be carried out (exposed parts are acceptably insulated
100K
from the supply circuit) before the appliance is returned to
+5V
the customer.
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
C605
0.01
the product. Refer to the voltage dur ing PLAY unless
otherwise specified; The value shown in ( ) is the voltage
measured at the moment of STOP.
DV-S700(K) (2/2)
DV-K750(M) (2/2)
DV-K750/S700
Y22-7430-10
AW
AX
5.0V
4.9V
3
2
1
C603
0.01
C615
1u50
+
R633
150
D610
D611
DVD
indicates safety critical components.

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