KENWOOD DPC792 Service Manual

Cover page of KENWOOD DPC792 Service Manual

Service Manual for KENWOOD DPC792, downloadable as a PDF file.

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SPECIFICATIONS
Illust is DPC-395.
* Refer to parts list on page 13.
In compliance with Federal Regulations, following are reproduc-
tions 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.
PORTABLE CD PLAYER
DPC-193/392/393/395/
DPC-692/792/793/993
SERVICE MANUAL
© 1998-7/B51-5451-00 (K/K) 3314
Format
System ............................................................................ Compact disc digital audio system
Laser ....................................................................................................... Semiconductor laser
Audio
Frequency response .......................................................................... 20 Hz to 20 kHz,
±3 dB
PHONES outpuyt level (16
, 1 kHz ) ............................................................ 10 mW + 10 mW
Line output/impedance ..................................................................................... 0.6 Vrms/1 k
Power supply
External DC supply ........................................................................................... 4.5V to 6 V DC
Rechargeable batteries (NB-88 or NB-130) 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. 25 (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) (DPC-395/792/795) ............................ 132 mm x 32.5 mm x 153 mm
(5 - 3/16" x 1 - 1/4" x 6")
Dimensions (W x H x D) (DPC-193/392/393/793) .................... 132 mm x 29.5 mm x 153 mm
(5 - 3/16" x 1 - 3/16" x 6")
Weight (net) (DPC-395/792/795) .......................................................................... 272 g (9.6 oz)
Weight (net) (DPC-193/392/393/793) .................................................................. 260 g (9.2 oz)
VOLUME
PHONES
LINE
OUT
DC-IN
Top cabinet *
(A02-)
DC jack
(E03-0356-08)
Line out phone jack
(E11-0354-08)
Phone jack
(E11-0372-08)
Variable resistor
(R31-0086-08)
Knob (DOOR OPEN)
(K27-2322-08)
CD door ASSY *
(A52-)
DPC-193/383(k)COVER(98.12.1410:49 y[W 2
background image
SPECIFICATIONS
Illust is DPC-395.
* Refer to parts list on page 13.
In compliance with Federal Regulations, following are reproduc-
tions 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.
PORTABLE CD PLAYER
DPC-193/392/393/395/
DPC-692/792/793/993
SERVICE MANUAL
© 1998-7/B51-5451-00 (K/K) 3314
Format
System ............................................................................ Compact disc digital audio system
Laser ....................................................................................................... Semiconductor laser
Audio
Frequency response .......................................................................... 20 Hz to 20 kHz,
±3 dB
PHONES outpuyt level (16
, 1 kHz ) ............................................................ 10 mW + 10 mW
Line output/impedance ..................................................................................... 0.6 Vrms/1 k
Power supply
External DC supply ........................................................................................... 4.5V to 6 V DC
Rechargeable batteries (NB-88 or NB-130) 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. 25 (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) (DPC-395/792/795) ............................ 132 mm x 32.5 mm x 153 mm
(5 - 3/16" x 1 - 1/4" x 6")
Dimensions (W x H x D) (DPC-193/392/393/793) .................... 132 mm x 29.5 mm x 153 mm
(5 - 3/16" x 1 - 3/16" x 6")
Weight (net) (DPC-395/792/795) .......................................................................... 272 g (9.6 oz)
Weight (net) (DPC-193/392/393/793) .................................................................. 260 g (9.2 oz)
VOLUME
PHONES
LINE
OUT
DC-IN
Top cabinet *
(A02-)
DC jack
(E03-0356-08)
Line out phone jack
(E11-0354-08)
Phone jack
(E11-0372-08)
Variable resistor
(R31-0086-08)
Knob (DOOR OPEN)
(K27-2322-08)
CD door ASSY *
(A52-)
DPC-193/383(k)COVER(98.12.1410:49 y[W 2
background image
SPECIFICATIONS .........................................Top cover
CONTENTS / ACCESSORIES ....................................2
CIRCUIT DESCRIPTION .............................................3
PC BOARD ..................................................................5
SCHEMATIC DIAGRAM ..............................................7
EXPLODED VIEW .....................................................12
PARTS LIST...............................................................13
DPC-193/392/393/395/692/792/793/993
2
CONTENTS / ACCESSORIES
Contents
Model feature list
AC adapter ..................................................................(1)
(W08-0657-08) : K5K6K9P5P9P6
(W08-0658-08) : E2E7E3
(W08-0659-08) : T3
(W08-0660-08) : X6
(W08-0675-05) : M2M3M4S3
Innerphone..........................................(1)
(W01-0925-05) : E2E3M1M2M3T3X1X6
(W01-0923-05) : E7M4S3
AC plug ..........................................(1)
(E03-0115-05) : M1M2M3M4S3
Rechargeable battery (NB-88) .......(1)
(W09-1240-05) : E7M1M2M4M3S3T3X1X6
Car battery adapter ........................(1)
(W01-0921-05) : E2M2K5K6P5P6X6
Car cassette adapter......................(1)
(W01-0922-05) : E2K5K6M2P5P6X6
Remote control...............................(1)
(A70-1190-05) : S3
Remote control...............................(1)
(A70-1111-08) : E7M4
Headphone ....................................(1)
(W01-0924-05) : K5P5
(W01-0943-05) : K6P6
(W01-0947-05) : K9P9
12
3
4
5
6
7
9
DPC-193
DPC-392
DPC-393
DPC-395
DPC-692
DPC-792
DPC-793
DPC-993
MX
ME
M
M 2
T
E
M
K
P
K
P
X
E
K
P
BASE BOOST SW
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
TACT
DASC<OFF-ON(4M)>IC7
-
-
YES
YES
YES
YES
YES
YES
YES
-
-
-
-
-
-
-
-
DASC<ST-OFF-HI(16M)>IC6
-------
-
-
YES
YES
YES
YES
YES
YES
YES
YES
DIGITAL OPT OUT(J104)
-------
-
-
-
---
-
YES
-
-
LINE
OUT(J105)
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
-
YES
YES
REMOCON
JACK(J103)
-----
YES
-
-
YES
-
---
-
YES
-
-
CAR BATTERY ADP.
-
-
YES
YES
-
-
-
-
-
YES
YES
YES
YES
YES
-
-
-
CAR CASETTE ADP.
-
-
YES
YES
-
-
-
-
-
YES
YES
YES
YES
YES
-
-
-
RECHARGEABLE BATT.
NB-88
NB-88
NB-88
-
NB-88
NB-88
NB-88
-
NB-88
-
-
-
-
NB-88
NB-88
-
-
INNER
HEADPHONE(SHORT)
-----
YES
-
-
YES
-
---
-
YES
-
-
INNER
HEADPHONE(LONG)
YES
YES
YES
YES
YES
-
YES
YES
-
-
-
-
-
YES
-
-
-
OPEN
HEADPHONE(LOW)
-------
-
-
YES
YES
--
-
-
-
-
OPEN
HEADPHONE(HI/LONG)
-------
-
-
-
-
YES
YES
-
-
-
-
NOISE CANCEL HP(LONG)
-------
-
-
-
---
-
-
YES
YES
REMOCON WIRED
-----
LCD
-
-
3KEY
-
-
-
-
-
3 KEY
-
-
Accessories
DPC-193/383(k)COVER(98.12.1410:49 y[W 3
background image
DPC-193/392/393/395/692/792/793/993
3
CIRCUIT DESCRIPTION
Pin No.
Name
I/O
Description
Remarks
1-4
COM1-4
O
LCD common signal
5
VLC3
­
GND
6,7
VLC1,2
­
LCD driving bias control
8
VDD
­
Power supply(+2.8V)
9
OSC2
­
No use
10
SMCK
I
External system clock(4.2336MHz)
11
VSS
­
GND
12
X1
­
GND
13
X0
­
No use
14,15
MMOD,VREF
­
GND
16
KEY1
I
Key input
17
KEY2
I
Remocon key input port
18
RECHARGE OUT
O
Rechargeable detection port
19
BATT
­
No use
20
HOLD
I
Key hold on/off control
ON=H
21
DOOR
I
Door switch detection port
OPEN=H
22
DA SCST
I/O
DASC switch detection port(ST)
23
DA SCHI
I
DASC switch detection port(HI)
24
VREF+
­
Power supply(+2.8V)
25
P00
­
No use
26
SUBQ
I
Sub-Q data input signal port(to MN662746RPK1)
27
SQCK
I
Sub-Q data read timing clock port(to MN662746RPK1)
28
MDATA
O
Data signal port(to MN662746RPK1)
29
P04
­
No use
30
MCLK
O
Clock signal port(to MN662746RPK1)
31
P06
­
No use
32
RESET
I
System reset port
33-37
P10-14
­
No use
38
BLKCK
I
Sub-Q signal read require port
39
P21
­
No use
40
REM IN
I
Remocon data input port
41,42
P23,24
­
No use
43
YMCLK
O
Clock signal port(to SM5859AF/5902AF)
44
YMDATA
O
Audio signal port(to SM5859AF/5902AF)
45
YMLD
O
Latch signal port(to SM5859AF/5902AF)
46
YD MUTE
O
Audio signal mute control port
ON=H
47
ZSENSE
O
Sensitive signal port(to SM5859AF/5902AF)
48
NRESET
O
System reset port(to SM5859AF/5902AF)
49,50
P53,54
­
No use
51
POWER
O
Power supply control port
52
REM DATA
O
Remocon data output port
53
CONT
O
DASC control output port(HI/ST)
ON=H
54
BBS
O
BBS control
ON=L
55
LMT
I
Limit switch detection port
56
EMP
O
Battery level detection port
LOW BATT=H
1. Microprocessor : MN101C167
1-1 Pin description
DPC-193/383(k)COVER(98.12.1410:49 y[W 7
background image
IC5
SHOCKPLOOF
SM5859AF
IC6,7
DRAM
AN8889
(KSM-542AAA)
/ / /
/ / /
/ / /
FROM IC4 (Rch)
J105
LINE OUT
J102
J104
Rch
Lch
H. P JACK
OPT.OUT
NJM2073M
VOLUME
J103
REMOTE
LMT.
SW
AN8838SB
Lch
IC9
MM662746RPK1
DPC-193/392/393/395/692/792/793/993
4
CIRCUIT DESCRIPTION
Pin No.
Name
I/O
Description
Remarks
57-59
P66,67,70
­
No use
60
RECHARGE
I
Rechargeable battery detection port
61
LIGHT OUT
­
No use
62
MLD
O
Latch signal port(to MN662746RPK1)
63
SENSE
I
Sensitive signal port
64
FLOCK
I
Focus servo
IN=L
65
TLOCK
I
Tracking servo
IN=L
66
STAT
I
Status signal port
67
RST
O
Reset signal port(to MN662746RPK1)
68-71
P83-86
­
No use
72
DIGITAL OUT
O
Digital output control
73
P81
I
Memory selector
NO=H,4M=H,16M=L
74
P80
I
Memory selector
NO=L,4M=H,16M=L
75-85
SEG15-25
­
LCD segment signal
86-100
SEG0-14
O
LCD segment signal
1-2 Microprocessor periphery block diagram
DPC-193/383(k)COVER(98.12.1410:49 y[W 8
background image
4
1
5
IC9
8
22
12
14
1
25
1
51
75
100
76
26
50
60
41
1
22
12
34
44
11
1
14
26
13
1
23
33
20
40
21
61
80
15
28
34
44
1
IC2
IC1
IC3
IC4
IC5
IC6
11
33
23
REPEAT
REMOTE
VOLUME
LINE OUT
PHONES
OPT OUT
DC IN
DOOR
SW
P.MODE
B.B
1
19
ON OFF
HOLD
ON OFF
ESP SW
IC7
1
26
13
14
4
1
5
IC9
8
22
12
14
1
25
1
51
75
100
76
26
50
60
41
1
22
12
34
44
11
1
14
26
13
1
23
33
20
40
21
61
80
15
28
34
44
1
IC2
IC1
IC3
IC4
IC5
IC6
11
33
23
REPEAT
REMOTE
VOLUME
LINE OUT
PHONES
OPT OUT
DC IN
DOOR
SW
P.MODE
B.B
1
19
ON OFF
HOLD
ON OFF
ESP SW
IC7
1
26
13
14
ACE
G
I
BD
F
H
J
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
(Foil side view)
5
6
DPC-193/393(K)PCB/SD(98.12.1410:42 y[W 1

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