KENWOOD DPCX707 Service Manual

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Service Manual for KENWOOD DPCX707, downloadable as a PDF file.

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PORTABLE CD PLAYER
DPC-X707/X802
SERVICE MANUAL
© 1999-6/B51-5526-00 (K/K) 2510
SPECIFICATIONS
* Refer to parts list on page 12.
In compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser
product safety.
KENWOOD-Corp. certifies this equipment conforms to DHHS
Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Format
System ............................................................................ Compact disc digital audio system
Laser ....................................................................................................... Semiconductor laser
Audio
Frequency response .......................................................................... 20 Hz to 20 kHz,
3 dB
PHONES output level (16
, 1 kHz ) ............................................................ 10 mW + 10 mW
Line output/impedance ................................................................................... 0.55 Vrms/1 k
Power supply
External DC supply ........................................................................................... 4.5V to 6 V DC
Rechargeable batteries (NB-88) x 2 or 4 ................................................................... DC 2.4 V
Commercially-available alkaline batteries (LR6/AA) x 2 or 4 ....................................... DC 3 V
Battery life (continuous repeat playback)
(Figures inside parentheses show the performance when the D.A.S.C. is ON.)
Commercially-available alkaline batteries (LR6/AA) x 2 .................................... Approx. 12 (9.5) Hours
Commercially-available alkaline batteries (LR6/AA) x 4 ..................................... Approx. 29 (20) Hours
Rechargeable batteries (NB-88) x 2 ................................................................... Approx. 5.5 (4.5) Hours
Alkaline batteries (LR6/AA) x 2 and rechargeable batteries (NB-88) x 2 ............ Approx. 18 (15) Hours
Dimensions (W x H x D) ............................................................ 129 mm x 29.5 mm x 151 mm
(5 - 1/16" x 1 - 3/16" x 5-15/16")
Weight (net) .......................................................................................................... 272 g (9.6 oz)
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be
changed without notice.
Top cabinet
(A02-2923-08)
DC jack
(E03-0356-08)
Phone jack or
OPT out *
CD door assy
(A53-2169-08)
Phone jack
(E11-0372-08)
Potentionmeter
(R31-0086-08)
Knob
(REPEAT/P.MODE)
(K27-2381-08)
Knob (OPEN)
(K27-2379-08)
70%
DPC-X802(K) COVER1,1P( 99.10.29 7:19 PM y[W 2
background image
PORTABLE CD PLAYER
DPC-X707/X802
SERVICE MANUAL
© 1999-6/B51-5526-00 (K/K) 2510
SPECIFICATIONS
* Refer to parts list on page 12.
In compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser
product safety.
KENWOOD-Corp. certifies this equipment conforms to DHHS
Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Format
System ............................................................................ Compact disc digital audio system
Laser ....................................................................................................... Semiconductor laser
Audio
Frequency response .......................................................................... 20 Hz to 20 kHz,
3 dB
PHONES output level (16
, 1 kHz ) ............................................................ 10 mW + 10 mW
Line output/impedance ................................................................................... 0.55 Vrms/1 k
Power supply
External DC supply ........................................................................................... 4.5V to 6 V DC
Rechargeable batteries (NB-88) x 2 or 4 ................................................................... DC 2.4 V
Commercially-available alkaline batteries (LR6/AA) x 2 or 4 ....................................... DC 3 V
Battery life (continuous repeat playback)
(Figures inside parentheses show the performance when the D.A.S.C. is ON.)
Commercially-available alkaline batteries (LR6/AA) x 2 .................................... Approx. 12 (9.5) Hours
Commercially-available alkaline batteries (LR6/AA) x 4 ..................................... Approx. 29 (20) Hours
Rechargeable batteries (NB-88) x 2 ................................................................... Approx. 5.5 (4.5) Hours
Alkaline batteries (LR6/AA) x 2 and rechargeable batteries (NB-88) x 2 ............ Approx. 18 (15) Hours
Dimensions (W x H x D) ............................................................ 129 mm x 29.5 mm x 151 mm
(5 - 1/16" x 1 - 3/16" x 5-15/16")
Weight (net) .......................................................................................................... 272 g (9.6 oz)
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be
changed without notice.
Top cabinet
(A02-2923-08)
DC jack
(E03-0356-08)
Phone jack or
OPT out *
CD door assy
(A53-2169-08)
Phone jack
(E11-0372-08)
Potentionmeter
(R31-0086-08)
Knob
(REPEAT/P.MODE)
(K27-2381-08)
Knob (OPEN)
(K27-2379-08)
70%
DPC-X802(K) COVER1,1P( 99.10.29 7:19 PM y[W 2
background image
DPC-X707/X802
2
CONTENTS / ACCESSORIES
SPECIFICATIONS .........................................Top cover
CONTENTS / ACCESSORIES ....................................2
CIRCUIT DESCRIPTION .............................................3
PC BOARD ..................................................................5
SCHEMATIC DIAGRAM ..............................................7
EXPLODED VIEW .....................................................11
PARTS LIST...............................................................12
Contents
Car cassette adapter (1)
(W01-0922-05): X802 Model
Car battery adapter (1)
(W01-0921-05): X802 Model
AC adapter (1)
(W08-0658-08): E8E7
(W08-0675-08): M7M8
(W08-0679-08): X8X7
(W09-1251-05): K8P8
(W08-0678-08): T7T8
AC plug adaptor (1)
(E03-0115-05): M7M8
Rechargeable battery (2)
(W09-1240-05): M7E7X7
M8T7T8
Innerphone (1)
(W01-0923-05): M7X7
(W01-0925-05): X8E8E7M8
(W01-0975-08): T7T8
Headphone (1)
(W01-0924-05): K8P8
LCD remocon (1)
(A70-1171-05): M7X7
Accessories
DPC-X802(K) COVER1,1P( 99.10.29 7:19 PM y[W 3
background image
DPC-X707/X802
3
CIRCUIT DESCRIPTION
Pin No.
Name
I/O
Description
1
BEEP
O NOT USED
2
PE6
-
NOT USED
3
SENS2
I
SENSITIVITY INPUT
4
FOK
I
FOCUS OK SIGNAL
L: FOCUS DOWN
H:FOCUS OK
5
SQCK
O SUB Q SIGNAL READ TIMING CLOCK (TO CXD3009Q)
6
SQSO
I
CD SUB CODE INPUT (FROM CXD3009Q)
7
DATA
O DATA TO CXD3009Q
8
YMCLK
O SIGNAL OUTPUT (TO SM5903AF)
9
ZSENSE
I
SENSITIVE SIGNAL INPUT(FROM SM5903AF)
10
YMDATA
O DATA SIGNAL OUTPUT (TO SM5903AF)
11
AMUTE
O AUDIO MUTE
L: MUTE OFF
H: MUTE ON
12
MIX
O NOT USED
13
SOUND
O NOT USED
14
BBS
O NOT USED
15
REM-DATA
O REMOCON DATA OUTPUT
16
OPT
O NOT USED
17
LIGHT
O BACK LIGHT SIGNAL OUTPUT
L: ON
H: OFF
18
POWER
O POWER OUTPUT
L: OFF
H: ON
19
DIG-OUT
I
DIGITAL OUTPUT ON/OFF CONTROL
L: OFF
H: ON
20
BATT
I
BATTERY POWER SUPPLY MONITOR 1.4V~3.0V :OUTSIDE P.S 0V~1.4V :INSIDE BATT.
21
RECHG
I
RECHARGEABLE MONITOR
1.5V~3.0V :NON RECHARGEABLE 0V~1.5V :EXIST RECHARGEABLE
22
KEY
I
KEY INPUT
23
REKEY
I
REMOCON KEY INPUT
24
HOLD
I
HOLD SW INPUT
25
DRAM
I
DRAM SET UP INPUT
26,27
DASC1,2
I
DASC SW1(HI)/SW2(ST) INPUT
L: HI
H: OFF H: ST
28
NRESET
I
SYSTEM RESET
29
EXTAL
-
SYSTEM CLOCK
30
XTAL
-
SYSTEM CLOCK
31
VSS
-
GND
32
VL
-
LCD POWER SUPPLY
33~35
VLC3~1
-
LCD POWER SUPPLY
36~39
COM0~3
O COMMON SIGNAL(0~3) TO LCD
40~54
L SEG0~14
O SEGMENT SIGNAL (SEG0~14) TO LCD
55
L SEG15
O NOT USED
56
PDO
O NOT USED
57
CHG-OUT
O RECHARGEABLE ACTIVE OUTPUT
L: OFF
H: ON
58
B.B/P.GE
O NOT USED
59
TIMER
O NOT USED
60
PD4
O NOT USED
61
DBB
O DBB SIGNAL OUTPUT
H: DSP B.B OFF
L: DSP B.B MID or MAX
62
REM-LGH
O NOT USED
63
REM-DAT
O REMOCON DATA OUTPUT
L: OUTPUT DATA
H: OFF
64
PFO
O EMPHASIS TO CXD3009Q
L: OFF
H: ON
65
PF1
O LATCH TO CXD3009Q
66
YMLD
O LATCH TO SM5902
67
YDMUTE
O MUTE TO SM5902
L: OFF
H: ON
68
RESET
O RESET TO CXD3009Q/CXA2542/SM5903AF
L: RESET
69
PF5
O NOT USED
70
VDD
-
POWER SUPPLY
71
TX
-
NOT USED
72
TEX
-
NOT USED
73
NC
-
NOT USED
74
PF6
-
NOT USED
75
PF7
-
NOT USED
76
SCOR
I
SUB CODE SYNCHRO INPUT FROM CXD3009Q
77
DOOR
I
CD DOOR OPEN DETECT INPUT/OUTPUT
L: CLOSE
H: OPEN
78
EMP
I
DECREASE VOLTAGE DETECT
L: EMP
H: FULL
79
SENSE
I
SENSITIVITY SIGNAL INPUT FROM CXD3009Q
80
BB/P.GEIN
I
CONNECT TO GND
1. Microprocessor:CXP83517Q(IC3)
1-1Pin Description
DPC-X802(K) COVER1,1P( 99.10.29 7:19 PM y[W 6
background image
DPC-X707/X802
4
CIRCUIT DESCRIPTION
SSP/CXA2542AQ
SENS
SENS2
FOK
XRST
XLT
DATA
DATA
SENS
XLAT
CLOK
SCOR
SQSO
SQCK
XRST
EMPHI
ZSENSE
NRESET
YDMUTE
YMLD
YMDATA
YMCLK
PB6/SI1
PB4/SO0
RST
Power ON
OUTPUT
INPUT
4MHz
INT
EMP
RST
CLK
PB2/SCK0
PE0/INT0
PB3/SI0
PB7/SO1
PB5/SCK1
XLON
SPOA
CLK
C.OUT
IC101
IC201
16.9MHz
(DASC
on/of
f)
SER
VO
GAIN
SELECT
LIMIT
SW
on/of
fCHECK
DSP/CXD3009Q
SEIN
CNIN
FOK
Back
light
power
supply
OPT
output
on/of
f
Power
supply
monitor
Rechargeable
battery
check
HOLD/NORMAL/TEST
mode
DOOR
SW
open/close
check
DRAM
DASC
ON/OFF
or
HI/OFF/ST
Operation
key
Remocon
key
Recharge
on/of
f
OPT
power
supply
Remote
control
data
Mute
BEEP
AT
T
Remocon
Back
light
power
supply
IC401
D.RAM
cout./
SM5903AF
TR
V
DRIVER/
BA5901K
IC301
uCOM
IC3
V(IC3,22PIN)
KEY
0.00~0.74
PLAY/PAUSE
0.75~0.98
STOP
0.99~1.21
UP
1.22~1.42
B.BOOST
V(IC3,22PIN)
KEY
1.43~1.68
DOWN
1.69~2.11
REPEAT/P.MODE
2.12~2.53
MUTE
2.54~3.00
KEY OFF
1-2 VOLTAGE of A/D KEY
1-3 Microprocessor periphery block diagram
DPC-X802(K) COVER1,1P( 99.10.29 7:19 PM y[W 7
background image
ACE
G
I
BD
F
H
J
2
1
3
5
7
4
6
1
12
11
1
23
22
44
34
37
48
24
13
12
1
12
0
60
41
40
21
61
80
1
20
60
41
40
21
61
80
11
1
33
34
44
22
12
23
1
13
26
14
25
36
33
4
8
5
DC IN
LINE OUT
PHONES
CONTROL
VOLUME
REPEAT
STOP
P.MODE
SW
P.GE
B B
DOOR
OFF
ON
HOLD
ST
OFF
HI
DASC
REMOTE
1
12
11
1
23
22
44
34
37
48
24
13
12
1
12
0
60
41
40
21
61
80
1
20
60
41
40
21
61
80
11
1
33
34
44
22
12
23
1
13
26
14
25
36
33
4
8
5
DC IN
LINE OUT
PHONES
CONTROL
VOLUME
REPEAT
STOP
P.MODE
SW
P.GE
B B
DOOR
OFF
ON
HOLD
ST
OFF
HI
DASC
REMOTE
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
PC BOARD(Foil side view)
5
6
DPC-X802(K)PCB/SD2,2P( 99.10.309:26AM y[W 2

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