KENWOOD DPC191 Service Manual

Cover page of KENWOOD DPC191 Service Manual

Service Manual for KENWOOD DPC191, downloadable as a PDF file.

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Sample pages

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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 .......................................................................................................................................... 0.6 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. 10 (8) Hours (DPC-391/492)
Commercially-available alkaline batteries (LR6/AA) x 2 ................................................................................ Approx. 10 Hours (DPC-191)
Commercially-available alkaline batteries (LR6/AA) x 4 ............................................................... Approx. 22 (17.5) Hours (DPC-391/492)
Commercially-available alkaline batteries (LR6/AA) x 4 ................................................................................ Approx. 22 Hours (DPC-191)
Rechargeable batteries (NB-88) x 2 ...................................................................................................... Approx. 4 (3) Hours (DPC-391/492)
Rechargeable batteries (NB-88) x 2 .................................................................................................................. Approx. 4 Hours (DPC-191)
Rechargeable batteries (NB-88) x 4 ...................................................................................................... Approx. 9 (6) Hours (DPC-391/492)
Rechargeable batteries (NB-88) x 4 .................................................................................................................. Approx. 9 Hours (DPC-191)
Dimensions (W x H x D) ..................................................................................................................... 138 mm x 30 mm x 157 mm
(5 - 7/16" x 1 - 3/16" x 6 - 3/16")
Weight (net) ................................................................................................................................................................ 270 g (9.5 oz)
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
VOLUME
PHONES
LINE
OUT
DC-IN
REPEAT
P.MODE
OPEN
PORTABLE CD PLAYER
DPC-191/391/492
SERVICE MANUAL
© 1998-5/B51-5427-00 (K/K) 2664
Display lens
(B10-3429-08)
Inner display lens
(B10-2417-08)
CD door *
(A52-)
Top cabinet *
(A02-)
DC jack
(E03-0356-08)
Line out jack
(E11-0354-08)
Phone jack
(E11-0372-08)
Variable resistor
(R31-0086-08)
Knob
(K27-2316-08)
Knob
(K27-2317-08)
Knob
(K27-2315-08)
Knob
(K27-2319-08)
Knob
(K27-2318-08)
* Refer to parts list on page 12.
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.
SPECIFICATIONS
DPC-191 98.11.30 3:25 PM y[W 2
background image
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 .......................................................................................................................................... 0.6 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. 10 (8) Hours (DPC-391/492)
Commercially-available alkaline batteries (LR6/AA) x 2 ................................................................................ Approx. 10 Hours (DPC-191)
Commercially-available alkaline batteries (LR6/AA) x 4 ............................................................... Approx. 22 (17.5) Hours (DPC-391/492)
Commercially-available alkaline batteries (LR6/AA) x 4 ................................................................................ Approx. 22 Hours (DPC-191)
Rechargeable batteries (NB-88) x 2 ...................................................................................................... Approx. 4 (3) Hours (DPC-391/492)
Rechargeable batteries (NB-88) x 2 .................................................................................................................. Approx. 4 Hours (DPC-191)
Rechargeable batteries (NB-88) x 4 ...................................................................................................... Approx. 9 (6) Hours (DPC-391/492)
Rechargeable batteries (NB-88) x 4 .................................................................................................................. Approx. 9 Hours (DPC-191)
Dimensions (W x H x D) ..................................................................................................................... 138 mm x 30 mm x 157 mm
(5 - 7/16" x 1 - 3/16" x 6 - 3/16")
Weight (net) ................................................................................................................................................................ 270 g (9.5 oz)
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
VOLUME
PHONES
LINE
OUT
DC-IN
REPEAT
P.MODE
OPEN
PORTABLE CD PLAYER
DPC-191/391/492
SERVICE MANUAL
© 1998-5/B51-5427-00 (K/K) 2664
Display lens
(B10-3429-08)
Inner display lens
(B10-2417-08)
CD door *
(A52-)
Top cabinet *
(A02-)
DC jack
(E03-0356-08)
Line out jack
(E11-0354-08)
Phone jack
(E11-0372-08)
Variable resistor
(R31-0086-08)
Knob
(K27-2316-08)
Knob
(K27-2317-08)
Knob
(K27-2315-08)
Knob
(K27-2319-08)
Knob
(K27-2318-08)
* Refer to parts list on page 12.
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.
SPECIFICATIONS
DPC-191 98.11.30 3:25 PM y[W 2
background image
2
CONTENTS / ACCESSORIES
DPC-191/391/492
DPC-391
Contents
CONTENTS / ACCESSORIES ...................................2
CIRCUIT DESCRIPTION............................................3
PC BOARD .................................................................5
SCHEMATIC DIAGRAM .............................................7
EXPLODED VIEW ....................................................11
PARTS LIST .............................................................12
SPECIFICATIONS ........................................Top cover
Model feature list
K
P
E
T
M
M2
X
K
P
K
P
X
LINE OUT
REMOTE TERMINAL
DASC KNOB
B.B KNOB
B.BOOST P.MODE (TACT SW)
P.MODE (TACT SW)
DPC-191
DPC-492
Accessories
AC adapter .....................(1)
(W08-0657-08) : K1,K3,K4,P1,P3,P4
(W08-0658-08) : E
(W08-0675-08) : M
Innerphone(LONG) .........(1)
(W01-0925-05) : E, M
AC plug adapter..............(1)
(E03-0115-05) : M
Rechargeable battery .....(1)
(W09-1240-05) : M
Car battery adapter.........(1)
(W01-0921-05) : DPC-492(K4,P4)
Car cassette adapter ......(1)
(W01-0922-05) : DPC-492(K4,P4)
Headphone .....................(1)
(W01-0924-05) : K1,K3,P1,P3
(W01-0943-05) : K4,P4
M
MODEL
FEATURE
DPC-191 98.11.30 3:25 PM y[W 3
background image
3
DPC-191/391/492
D
CIRCUIT DESCRIPTION
1. Microprocessor : (MN171603 HFJ1)
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
NOT USED
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-191 98.11.30 3:25 PM y[W 4
background image
4
DPC-191/391/492
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
IC5
SHOCKPLOOF
SM5859AF
IC6
DRAM
MN171603
HFJ1
AN8819
NFB-M
EXCEPT FOR DPC-191
(KSM-542AAA)
/ / /
/ / /
/ / /
FROM IC4 (Rch)
J105
LINE OUT
J102
Rch
Lch
H. P JACK
NJM2073M
VOLUME
J103
REMOTE
DPC-191 (M2 TYPE)
DPC-391 (M TYPE)
LMT.
SW
AN8806SB
Lch
IC7
DPC-191 98.11.30 3:25 PM y[W 5
background image
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-191(K)PCB/SD-4P( 98.11.304:34PM y[W 2

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