KENWOOD 3090 Service Manual
COMPACT DISC PLAYER
1
-ON –STANDBY
P.MODE CHECK CLEAR EDIT
TIME
DISPLAY
REPEAT
PEAK
SEARCH
234567890
DISPLAY
76
¢4
¡1
STOP PLAY/PAUSE
+10 RANDOM
PHONES
0
L
R
OUTPUT
DIGITAL
OUTPUT
SYSTEM CONTROL
SL16 XS 8
ƒ
OPTICAL
DP-3080MkΙΙ/3090
SERVICE MANUAL
© 1997-8/B51-5349-00 (K/K) 2172
KENWOOD badge
(B43-0302-04)
Knob
(K29-6471-08)
Metallic cabinet
(A01-3356-08)
Dressing panel
(A21-3603-08)
Escutcheon
(B07-2388-08)
Optic receving module
(W02-2620-08)
Front glass
(B10-2403-08)
Knob
(k29-6469-08)
Miniature phone jack
(E11-0333-08)
Knob
(k29-6815-08)
AC power cord *
(E30-)
Panel *
(A60-)
Phone jack
(E11-0339-08)
Phono jack
(E63-0188-08)
In compliance with Federal Regulations, following are reproductions
of labels on, or inside the product relating to laser product safety.
Slide switch
(S62-0069-08)
Power cord bushing
(J42-0200-08)
KENWOOD-Corp. certifies this equipment conforms to DHHS
Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.
* Refer to parts list on page 14.
Illust is DP-3080MkΙΙ.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
DP-3080MkΙΙ/3090
REMOTE CONTROL UNIT
RC-P0505
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
TRACK
no d sc
1
1
1
2
3
6
4
7
CP401
CP201
5
position
"A"
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2
DISASSEMBLY FOR REPAIR .................................. 2
CIRCUIT DESCRIPTION .......................................... 3
ADJUSTMENT........................................................... 4
PC BOARD ............................................................... 5
Accessories
SCHEMATIC DIAGRAM............................................ 7
EXPLODED VIEW .................................................. 12
PARTS LIST..............................................................14
SPECIFICATIONS....................................................17
Audio cord...........................................(1)
(E30-2841-08)
System control cord..........................(1)
(E30-2629-05)
Batteries (R6/AA)................................(2)
Cautions
Note related to transportation and movement
Before transporting or moving this unit, carry out the following
operations.
1. Turn the power ON but do not load a disc.
2. Verify that the display shown appears.
3. Wait a few seconds and set the unit to STANDBY mode.
Beware of condensation
When water vapor comes into contact with the surface of cold
material, water drops are produced.
If condensation occurs, correct operation may not be possible, or
the unit may not function correctly.
This is not a malfunction, however, the unit should be dried.
To do this, turn the ON/STANDBY switch ON and leave the unit
as it is for several hours.
Remote control unit ..........................(1)
(A70-1181-08) : RC-P03050
Battery cover (A09-0356-08)
AC plug adaptor.................................(1)
(E40-9981-08) M type only
Be especially careful in the following conditions:
¶ When the unit is brought from a cold place to a warm place, and
there is a large temperature difference.
¶ When a heater starts operating.
¶ When the unit is brought from an air-conditioned place to a place
of high temperature with high humidity.
¶ When there is a large difference between the internal temperature
of the unit and the ambient temperature, or in conditions where
condensation occurs easily.
DISASSEMBLY FOR REPAIR
How to remove the CD tray.
★ Remove the CD mechanism from unit before this step.
1. Remove the 2 screws (
fram.
2. Turn the gear (2) under the tray, then remove the tray
on the position A (3).
3. Remove the guide frame (4), then remove the collar of
the leaf switch in the left direction (5).
4. While raising the click on the left-rear side of the tray (6),
pull out the tray (7).
2
1), then remove the clamper
DP-3080MkΙΙ/3090
CIRCUIT DESCRIPTION
1. Microprocessor ; (MAIN unit ; IC601)
1-1 Pin description
Pin No. Pin name I/O Description
1 GFS I NOT USED
2 RMC I REMOCON INPUT PRT
3-5 – I NOT USED
6 MUTE O DIGITAL MUTE (ON: "H")
7 MLEN O TC9423F LATCH CONTROL
8 MCK O TC9423F CLOCK CONTROL
9 SENS I SENSE INPUT FROM CXD2507
10 MDT O TC9423F DATA CONTROL
11 SQCK O CLOCK TO READ Q_DATA
12 SUBQ I Q_DATA INPUT PORT
13 – O NOT USED
14-17 KR0-KR3 I KEY INPUT PORT
18 OPEN_M O OPEN MOTOR (ACTIVE "L")
19 CLOSE_M O CLOSE MOTOR (ACTIVE "L")
20 MON O SPINDLE MOTOR ON "H"
21 – O NOT USED
22 DATA O DATA OUT TO CXD2507
23 XLT O LATCH OUT TO CXD2507
24 CLK O CLOCK OUT TO CXD2507
25 FOK I FOCUS OK INPUT PORT
26 LDON O LASER OUTPUT (ON: "L")
27 A_MUTE O ANALOGUE MUTE (ON: "H")
28 XRST O IC RESET PORT
29 AD_IN I A/D CONVERT INPUT PORT
30 RESET – (RESET)
31 XI – (XTAL1)
32 XO – (XTAL0)
33 Vss – (GND)
34-46 – O NOT USED
47-57 S11-S1 O FL SEGMENT PORT
58-61 – O NOT USED
62-70 G9-G1 O FL DIGIT PORT
71 Vfdp – FL DRIVER POWER (-26V)
72 Vdd – (+5V)
73 NC – CONNECTED TO Vdd
74 FED_SW I LIMIT SWITCH (ON: "L")
75 MODE_SW I 8/16BIT (L: 8BIT , H: 16BIT)
76 S_DATA I/O SYSTEM SERIAL DATA
77 S_BUSY I/O SYSTEM SERIAL BUSY
78 SCCR I SCOR FROM CXD2507
79 OP_SW I OPEN SWITCH (ON: "L")
80 CL_SW I CLOSE SWITCH (ON: "L")
3
DP-3080MkΙΙ/3090
GND
TP301
1.2 kHz
50 mVrms
+
_
L.P.F.
+
+
L.P.F.
VTVM
VTVM
1
2
3
4
5
6
7
ADJUSTMENT
No.
1. WITH PRESSING PLAY/PAUSE ( 66) TURN THE POWER ON TO ENTER THE TEST MODE.
2. SET THE TEST DISC TO DISC NO SONY YEDS–18. (TYPE4)
1
2
3
ITEM
FOCUS
OFFSET
TRACKING
BALANCE
TRACKING
GAIN
INPUT
SETTING
TEST DISC
TYPE 4
TEST DISC
TYPE 4
Test disc
type4 Apply
signal of
1.2kHz
50mVrms to
TP301 pin5-6.
OUTPUT
SETTING
CONNECT AN
OSCILLOSCOPE
to TP301
CH1 : RF(
CONNECT AN
OSCILLOSCOPE
to TP301
CH1 : TE1(5)
CH2 : VC(4)
Connect a LPF to
TP301 pin 5-6 to
which you connect
an oscilloscope or
AC voltmeters.
1)
PLAYER
SETTING
STOP
PLAY
SHORT–CIRCUIT
TP2 WITH TP5
AFTER THE
ADJUSTMENT
REMOVE
SHORT–WIRE
PLAY
ALIGNMENT
POINT
VR301
FE OFFSET
VR302
TE BALANCE
VR303
TE GAIN
ALIGN FOR FIG.
DC=0V
SYMMETRY
BETWEEN
UPPER AND
LOWER
Two VTVMs
should read the
some value.
(e)
Note:
Type 4 disc : SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47 kΩ+ 390 pF or so.
(e)Tracking gain
4
ACEGIBDFHJ
PC BOARD(Component side view)
1
2
3
4
5
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
5 6
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