KENWOOD DPC-381 Service Manual

Cover page of KENWOOD DPC-381 Service Manual

Service Manual for KENWOOD DPC-381, downloadable as a PDF file.

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PORTABLE CD PLAYER
DPC-181/183/381/382/383
SERVICE MANUAL
© 1997-7/B51-5331-00 (K/K) 3188
VOLUME
PHONES
LINE
OUT
DC-IN
REPEAT
P.MODE
OPEN
VOLUME
PHONES
LINE
OUT
OFF
Knob (P. MODE)
(K27-2252-08)
Knob
(K27-2244-08)
Display lens
(B10-2416-08)
CD door *
(A52-)
Top cabinet*
(A02-)
Knob
(K27-2245-08)
Knob (OPEN)
(K27-2243-08)
Knob (SKIP/SEARCH)
(K27-2246-08)
Knob (PLAY/STOP)
(K27-2247-08)
Variable resistor
(R31-0086-08)
Display lens *
(B10-)
CD door lens *
(B10-)
CD door *
(A52-)
Variable resistor
(R31-0086-08)
Knob (REPEAT)
(K27-2253-08)
Knob (SKIP/SEARCH)
(K27-2256-08)
Knob (OPEN)
(K27-2251-08)
Knob (PLAY/STOP)
(K27-2255-08)
Knob (SKIP/SEARCH)
(K27-2257-08)
Illust is DPC-183/383.
* Refer to parts list on page 13.
Illust is DPC-181/381/382.
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.
DPC-183/383(k)1P 98.4.243:25PM y[W 2
background image
PORTABLE CD PLAYER
DPC-181/183/381/382/383
SERVICE MANUAL
© 1997-7/B51-5331-00 (K/K) 3188
VOLUME
PHONES
LINE
OUT
DC-IN
REPEAT
P.MODE
OPEN
VOLUME
PHONES
LINE
OUT
OFF
Knob (P. MODE)
(K27-2252-08)
Knob
(K27-2244-08)
Display lens
(B10-2416-08)
CD door *
(A52-)
Top cabinet*
(A02-)
Knob
(K27-2245-08)
Knob (OPEN)
(K27-2243-08)
Knob (SKIP/SEARCH)
(K27-2246-08)
Knob (PLAY/STOP)
(K27-2247-08)
Variable resistor
(R31-0086-08)
Display lens *
(B10-)
CD door lens *
(B10-)
CD door *
(A52-)
Variable resistor
(R31-0086-08)
Knob (REPEAT)
(K27-2253-08)
Knob (SKIP/SEARCH)
(K27-2256-08)
Knob (OPEN)
(K27-2251-08)
Knob (PLAY/STOP)
(K27-2255-08)
Knob (SKIP/SEARCH)
(K27-2257-08)
Illust is DPC-183/383.
* Refer to parts list on page 13.
Illust is DPC-181/381/382.
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.
DPC-183/383(k)1P 98.4.243:25PM y[W 2
background image
DPC-181/183/381/382/383
2
CONTENTS / ACCESSORIES
MODEL
FEATURE
Contents
CONTENTS / ACCESSORIES ....................................2
CIRCUIT DESCRIPTION .............................................3
PC BOARD ..................................................................5
SCHEMATIC DIAGRAM ..............................................9
EXPLODED VIEW .....................................................13
PARTS LIST...............................................................15
SPECIFICATIONS .....................................................19
Model feature list
K P E T M M2 X K P E T M X K P E T M M2 K P E T M X K P E T M M2
OPTICAL
OUT
LINE OUT
REMOTE
TERMINAL
DASC
KNOB
B.B KNOB
B.BOOST
P.MODE
P.MODE
DPC-181
DPC-183
DPC-381
DPC-382
DPC-383
Accessories
AC adapter(110~120V /220-240V 50/60Hz) ...............(1)
(W08-0657-08) : KP
(W08-0658-08) : E
(W08-0659-08) : T
(W08-0660-08) : X
(W08-0667-05) : M,M2
Innerphone..........................................(1)
(W01-0925-05) : DPC-181(MXTE)
DPC-183(X)
DPC-381(TE)
(W01-0923-05) : DPC-181(M2)
DPC-183(M)
DPC-381(M,M2)
DPC-383(M2)
AC plug ..........................................(1)
(E03-0115-05) : M,M2
Rechargeable battery .....................(1)
(W09-1239-05) : KP
(W09-1240-05) : ETMXM2
Audio cable ....................................(1)
(E30-2782-05) : DPC-381(E.T)
Car battery adapter ........................(1)
(W01-0921-05) : DPC-382
Car cassette adapter......................(1)
(W01-0922-05) : DPC-382
Remote control...............................(1)
(A70-1190-05) : DPC-381/383 (M,M2)
Remote control...............................(1)
(A70-1111-08) : DPC-181 (M2)
DPC-183 (M)
Headphone ....................................(1)
(W01-0924-05) : DPC-181(KP)
(W01-0943-05) : DPC-381(KP)
(T17-0015-08) : DPC-383(M)
(T17-0016-08) : DPC-383(KPETX)
DPC-183/383(k)1P 98.4.243:26PM y[W 3
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DPC-181/183/381/382/383
3
CIRCUIT DESCRIPTION
1. Microprocessor : (MN171603 H3)
1­1 Pin description
Pin No.
Pin name
I/O
Function description
Active
1, 2
­
I
NOT USED
3
AVSS
­
GND
4
BBS
O
BBS CONTROL SIGNAL OUTPUT
ON = "H"
5
DATA
O
REMOTE CONTROL SIGNAL OUTPUT
6, 7
­
NOT USED
8
KEY
I
KEY INPUT
9
HOLD
I
HOLD ON/OFF CONTROL
ON = "H"
10
ESP
I
ESP ON/OFF CONTROL
ON = "L"
11
LOW BATTERY
I
BATTERY VOLTAGE DETECTION
LOW BATT. = "H"
12
AVDD
­
SUPPLY VOLTAGE
13~15
VLC1~VLC3
­
LCD DRIVER BIAS CONTROL
16~19
COM1~COM4
O
LCD COMMON SIGNAL OUTPUT (COMMON1~4)
20~33
SEG0~SEG13
O
LCD SEGMENT SIGNAL OUTPUT (SEG0~SEG13)
34, 35
SEG14, 15
O
NOT USED
36
MODE-M
I
MEMORY SELECT
4M = "H"
OTHER = "L"
37
D-CNT
I
DIGITAL OUT CONTROL
OUT = "H" (ESP OFF)
38
MODE-A
I
USE CUE/REV MODE
39
MODE-B
I
NOT USED
40
STDBY
O
NOT USED
41~44
­
­
NOT USED
45
DOOR OPEN
I
DOOR SWITCH DETECTION
OPEN = "H"
46
PSET
I
PICKUP INITIAL POSITION
47
BTCHK
I
BATT. VOLTAGE DIRECTION.
48~51
­
I
NOT USED
52
POWER
O
POWER SUPPLY CONTROL.
53
BAT
O
BATTERY CONTROL OUTPUT
CHARGING = "H"
54
D MUTE
O
MUTE CONTROL
ON = "H"
55
SBCK
O
SUB CODE READ TIMING CLOCK FOR MN662740RE
56
FCLK
I
FRAME CLOCK SIGNAL from MN662740RE
57
FLAG
I
FLAG SIGNAL INPUT from MN662740RE
58
IPFLAG
I
CORRECTION = "H"
59
­
I
GND
60
STAT
I
STATUS SIGNAL from DSP
61
SENSE
I
SENSITIVE SIGNAL from DSP
62
TLOCK
I
TRACKING SERVO
IN = "L"
63
FLOCK
I
FOCUSING SERVO
IN = "L"
64
MCLK
O
COMMAND CLOCK for MN662740RE
65
MDATA
O
COMMAND DATA for MN662740RE
66
MLD
O
COMMAND DATA LATCH (LOAD) for MN662740RE
67
­
O
NOT USED
68
RST
I
SYSTEM RESET INPUT
69
X1
I
GND
70
X2
O
NOT USED
71
Vss
­
GND
72
­
O
NOT USED
73
SMCK
I
EXTERNAL SYSTEM CLOCK = 4.2336MHz
DPC-183/383(k)1P 98.4.243:26PM y[W 6
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DPC-181/183/381/382/383
4
CIRCUIT DESCRIPTION
Pin No.
Pin name
I/O
Function description
Active
74
VDD
­
SUPPLY VOLTAGE (ESP ON = 4.2V / OFF = 3.2V)
75
LRST
O
RESET SIGNAL for MN662740RE, SM5859AF
76
SQCK
O
SUBQ READ TIMING CLOCK to MN662740RE
77
SUBQ
I
SUBQ DATA from MN 662740RE
78
­
O
NOT USED
79
YMLD
O
COMMAND DATA LATCH (LOAD) for SM5859AF
80
YMCLK
O
COMMAND CLOCK for SM5859AF
81
ZSENSE
I
SENSITIVE SIGNAL from SM5859AF
82
YMDATA
O
COMMAND DATA for SM5859AF
83
BLKCK
I
SUBQ READ REQUEST SIGNAL IN.
84
­
I
GND
1-2 Voltage of pin No. 8 (IC3) / Key function.
KEY
V
Key of unit (Remocon)
0.00
PLAY/PAUSE (
6)
0.75
STOP (
7)
1.00
UP (
¢)
1.23
B. BOOST / P. MODE
1.43
DOWN (
4)
1.69
REPEAT
2.13
MUTE (Only Remocon)
2.55
KEY OFF
3.0
1-3 Microprocessor periphery block diagram
(KSM-542AAA)
/ / /
/ / /
/ / /
IC5
SHOCKPLOOF
SM5859AF
IC6
DRAM
FROM IC4 (Rch)
J105
EXCEPT
DPC-381/383 (M2 TYPE)
LINE OUT
J102
Rch
Lch
H. P JACK
NJM2073M
VOLUME
DIGITAL OUTPUT
J104
OPT. OUT
DPC-381/383 (M2 TYPE)
J103
REMOTE
DPC-181 (M2 TYPE)
DPC-183 (M TYPE)
DPC-381/383 (M/M2 TYPE)
MN171603
HFC
AN8819
NFB-M
LMT.
SW
AN8806SB
DPC-381/382/383 ONLY
Lch
DPC-183/383(k)1P 98.4.243:26PM y[W 7
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5
AC
E
BD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view) : DPC-181/381/382
DPC-183/383(k)COVER( 98.4.245:22PM y[W 10

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