Aiwa XD-DV290K User manual

BASIC DVD MECHANISM : LDM-H109
DVD PLAYER
XD-DV290
S/M Code No. 09-99C-337-5R2
K(B),EZ(B)
SERVICE MANUAL
REVISION
DATA
This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
K<B>:(S/M Code No.09-99C-337-5T2)
EZ<B>:(S/M Code No.09-99C-337-5T3) .
(6721R-0300A)

2
TABLE OF CONTENTS
SPECIFICATIONS .................................................................................................................................. 3
ACCESSORIES/PACKAGE LIST ........................................................................................................... 3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING/
Precaution to replace Optical block......................................................................................................... 4
DISASSEMBLY INSTRUCTIONS...................................................................................................... 5-10
ELECTRICAL MAIN PARTS LIST ........................................................................................................ 11
TRANSISTOR ILLUSTRATION ............................................................................................................ 12
BLOCK DIAGRAM-1 (OVERALL) ......................................................................................................... 13
BLOCK DIAGRAM-2 (POWER) ............................................................................................................ 14
BLOCK DIAGRAM-3 (RF/DSP/SERVO)............................................................................................... 15
BLOCK DIAGRAM-4 (AUDIO) .............................................................................................................. 16
BLOCK DIAGRAM-5 (MPEG)............................................................................................................... 17
BLOCK DIAGRAM-6 (SYSTEM CONTROL) ........................................................................................ 18
WIRING-1 (MAIN: COMPONENT SIDE) ........................................................................................ 19, 20
WIRING-2 (MAIN: CONDUCTOR SIDE) ........................................................................................ 21, 22
SCHEMATIC DIAGRAM-1 (MAIN 1/5)............................................................................................ 23, 24
SCHEMATIC DIAGRAM-2 (MAIN 2/5)............................................................................................ 25, 26
SCHEMATIC DIAGRAM-3 (MAIN 3/5)............................................................................................ 27, 28
SCHEMATIC DIAGRAM-4 (MAIN 4/5)............................................................................................ 29, 30
SCHEMATIC DIAGRAM-5 (MAIN 5/5)............................................................................................ 31, 32
SCHEMATIC DIAGRAM-6 (JACK) ................................................................................................. 33, 34
WIRING-3 (JUNCTION/JACK)........................................................................................................ 35, 36
SCHEMATIC DIAGRAM-7 (JUNCTION) ........................................................................................ 37, 38
WIRING-4 (TIMER/KEY/POWER) .................................................................................................. 39, 40
SCHEMATIC DIAGRAM-8 (TIMER/KEY) ....................................................................................... 41, 42
SCHEMATIC DIAGRAM-9 (POWER) ............................................................................................. 43, 44
WAVE FORM ................................................................................................................................... 45-47
TROUBLE-SHOOTING.................................................................................................................... 48-57
LCD DISPLAY....................................................................................................................................... 58
IC DESCRIPTION ............................................................................................................................ 59-77
IC BLOCK DIAGRAM....................................................................................................................... 78-80
MECHANICAL EXPLODED VIEW 1/1.................................................................................................. 81
MECHANICAL PARTS LIST 1/1 ........................................................................................................... 82
MECHANISM EXPLODED VIEW 1/1 ............................................................................................. 83, 84
MECHANISM PARTS LIST 1/1............................................................................................................. 85

3
SPECIFICATIONS
DVD VIDEO PLAYER
Power supply 100V~240V, 50Hz
Power consumption 20 W
Mass 3.5kg(7.7lbs)
External dimensions 430 *91 *293 (W *H *D)
Signal system NTSC
Laser SSemiconductor laser, wavelength 655nm (DVD) /795nm (CD)
Frequency range (digital audio) 2Hz to 44kHz
Signal-to-noise ratio (digital audio) More than 105dB (EIAJ)
Audio dynamic range (digital audio) More than 95dB (EIAJ)
Harmonic distortion(digital audio) 0.003%
Wow and flutter Below measurable level (less than +0.001% (W.PEAK) (EIAJ)
Operating conditions Temperature : 5˚C(41˚F) to 35˚C(95˚F),
Operation status : Horizontal
OUTPUTS
Video outputs 1.0V (p-p), 75Ω, negative sync., RCA jack x 1
S video outputs (Y) 1.0V (p-p), 75Ω, negative sync., Mini DIN 4-pin *1
(C) 0.286V (p-p), 75Ω
Component video output (Y) 1.0V (p-p), 75Ω,negative sync., RCA jack *1
(Pb)/(Pr) 0.7V (p-p), 75Ω
Audio output (digital audio) 0.5V(p-p), 75Ω, RCA jack *1
Audio output (optical audio) Optical connector *1
Audio output (analog audio) 2.0Vrms (1kHz, 0dB), 330Ω, RCA jack (L, R) *2
•
Design and specifications are subject to change without notice.
•
Weight and dimensions shown are approximate.
REF. NO PART NO. KANRI DESCRIPTION
NO.
ACCESSORIES/PACKAGE LIST
1 S8-35R-S00-09G INSTRUCTION ASSY
2 S8-615-20G-000 DVD-2520N CABLE ASSY
3 S7-11R-2N0-13A REMOTE CONTROLLER A
4 S5-640-17B-000 PLUG ASSY PHONE CORD 1WAY
5 S5-640-18B-000 PLUG ASSY PHONO CORD

4
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainit-
ulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylit-
tävälle näkymättömälle lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som specificeras i
denna bruksanvising, kan användaren utsättas för osynling
laserstrålning, som överskrider gränsen för laserklass 1.
Caution: Invisible laser radiation when
open and interlocks defeated avoid expo-
sure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation de commandes, réglages ou procédures autres que
ceux spécifiés peut entraîner une dangereuse exposition aux
radiations.
ADVARSEL!
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude
af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on the rear
exterior.
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT
WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO
CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE
FROM A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL
PICK-UP BLOCK.
CLASS 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT
Precaution to replace Optical block
(LPC-512A)
1) After the connection, remove solder shown in
the right figure.
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode. Solder

5
DISASSEMBLY INSTRUCTIONS
CAUTION BEFORE STARTING SERVICING
Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to take a proper
grounding treatment as required.
Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a
magnetized screw driver in servicing. Several kinds of screws are used and some of them need special
cautions. That is, take care of the tapping screws securing molded parts and fine pitch screws used to secure
metal parts. If they are used improperly, the screw holes will be easily damaged and the parts can not be
fixed.
CABINET DISASSEMBLY
1. Top Case
1) Release 7 screws (A). (See Fig-1)
2) Lift the top case with holding the back of it, and remove
it in the direction of the arrow.
2. Tray Door
1) Eject the disc tray.
2) Lift up the tray door in the direction of the arrow.
3. Front Panel
1) Eject the disc tray. (See Fig-2)
2) Remove the tray door. (See Fig-2)
3) Release 2 screws (B).
4) Pull the front panel toward you while pressing 7
stoppers to disengage, and remove the front panel. (See
Fig-3)
Tray Door
Disc Tray
Fig-2
Fig-1
Front Panel Stopper
Stopper
(B)
(B)
(A)
Top Case
(A) (A)
(A)
(A)
(A)
(A)
Fig-3

6
CIRCUIT BOARD DISASSEMBLY
Note: Before removing the main circuit board, be sure to
shortcircuit the laserdiode output land.
After replacing the main circuit board, open the land after
inserting the flexible connector.
(Refer to Mechanism Disassembly)
4. Main/JACK C.B
1) Remove the top case. (See Fig-1)
2) Release 10 screws (C), and take out the main/JACK
C.B. (See Fig-4)
3) Remove the flexible connectors and the connector from
main circuit board.
4) Then, remove the main JACK C.B.
5. Power C.B
1) Release 4 screws (D). (See Fig-5)
Main C.B Flexible
connector
Flexible
connector
JACK C.B
(C)
(C)
(C)
(C) (C)
(C)
(C)
(C)
(C)
Power Code
Power C.B
(D) (D)
(D)
(D)
Fig-4
Fig-5
6. TIMER and Key C.B
1) Remove the front panel. (See Fig-3)
2) Release 5 screws (E), and remove the TIMER C.B.
(E)
(E)
(E) (E) (E)
TIMER C.B
Key C.B
Fig-6

7
DECK MECHANISM PARTS LOCATION
• Bottom View
• Top View
Procedure
Starting No.
5
5, 6
2
2, 8
2, 8
2, 8
2, 8, 11
2, 8, 11
2, 8, 12, 13
2, 8, 12-14
2, 8, 12-14
2, 8, 12-16
2, 8, 9
2, 8, 9
2, 8, 9
2, 8, 9-20
1, 2, 8, 9
1, 2, 8, 9
2, 8, 9
2, 8, 9
2, 8
2, 8, 26
2, 8, 26, 27
2, 8, 26-28
2, 8, 26-29
1, 2, 8, 26-30
1, 2, 8, 26-31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Parts
Junction P.C.Board
Bracket Assembly Clamp
Bracket Clamp
Clamp Assembly Disk
Plate Clamp
Magnet Clamp
Clamp Lower
Tray Disk
Base Assembly Feed
Rubber R
Spring Skew
Shaft PU Main
Shaft PU Sub
Mechanism Assembly
PU Unit
Guide Freed PU
Spring Guide Feed
Pick up Assembly General
Motor (Mech.)
Shaft Lead Screw
Motor Assembly PU Freed
Base PU (Outsert)
Base Assembly Main
Holder Assembly Deck on
Frame Assembly Up/Down
Rubber F
Belt Loading
GearPulley
Gear Loading
Gear Emergency
Cam Loading
Motor Assembly Loading
Base Main
Fixing Type
4 Screws,
4 Locking Tabs
2 Screws
1 Locking Tab
1 Connector
1 Screw
1 Hook
1Screw
3Screws
2 Locking Tabs
1 Locking Tab
2 Locking Tabs
1 Screw
2 Screws
1 Locking Tab
Disassembly
Bottom
Bottom
Bottom
Bottom
Bottom
Figure
4-1
4-2
4-2
4-2
4-2
4-2
4-2
4-3
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-4
4-5
4-5
4-5
4-5
4-5
4-5
4-5
4-5
4-5
4-5
4-5
Note: When reassembling, perform the procedure in reverse order.
The “Bottom” on Disassembly column of above
Table indicates the part should be disassembled at the
Bottom side.

8
DECK ASSEMBLY
BRACKET CLAMP
CLAMP
ASSEMBLY DISK
BRACKET CLAMP
PLATE CLAMP
(S2)
(S2)
(A)
(Fig-A)
MAGNET CLAMP
CLAMP LOWER
7. Junction C.B (Fig-7)
1) Put the Deck Assembly face down. (Bottom side)
2) Release 4 Screws (S1).
3) Unlock 4 Locking tabs (L1).
4) Lift up the Junction C.B a little to disconnect the
Connector (C1).
5) Disconnect 3 Connectors (C2, C3, C4).
DECK MECHANISM ASSEMBLY
DECK ASSEMBLY
JUNCTION
C.B
(C2) (C1)
(C3) (C4)
(L1)
(L1)
(L1) (L1)
(S1)(S1) (S1) (S1)
Fig-7
Fig-8
8. Bracket Assembly Clamp (Fig-8)
1) Put the Deck Assembly on original position. (Top side)
2) Release 2 Screws (S2).
3) Lift up the Bracket Assembly Clamp.
8-1. Clamp Assembly Disk
1) Place the Clamp Assembly Disk as Fig-(A).
2) Lift up the Clamp Assembly Disk in direction of arrow
(A).
3) Separate the Clamp Assembly Disk from the Bracket
Clamp.
8-1-1. Plate Clamp
1) Turn the Plate Clamp to counterclockwise direction and
then lift up the Plate Clamp.
8-1-2. Magnet Clamp
8-1-3. Clamp Lower
8-2. Bracket Clamp
9. Tray Disk (Fig-9)
1) Insert and push a Driver in the emergency eject hole (A)
at the front side, or put the Driver on the Lever (B) of
the Gear Emergency and pull the Lever (B) in direction
of arrow (A) so that the Tray Disk is ejected about 15-
20mm.
2) Pull the Tray Disk until the moving is locked by the
Locking Tab (L2).
3) Unlock the Locking tab (L2) in direction of arrow (B).
4) Separate the Tray Disk completely.
TRAY DISK
EMERGENCY
EJECT HOLE
LEVER
BOTTOM SIDE VIEW
(A)
(B) (L2)
(B)
(A)
Fig-9

9
10.Base Assembly Feed (Fig-10)
1) Disconnect the Connector (C5)
2) Release the Screw (S3).
10-1. Rubber R
10-2. Spring Skew
1) Press the (A) position of the Spring Skew and unlock
the Spring Skew locking.
10-3. Shaft PU Main
10-4. Shaft PU SUB
Note: When reassembling, be careful not to change the
Shaft PU Main (Long) and the Shaft PU Sub (Short).
10-5. Mechanism Assembly PU Unit
10-5-1. Guide Feed PU
1) Release the Screw (S4) and separate the Guide Feed PU
from the Pick up Assembly General.
10-5-2. Spring Guide Feed
MOTOR (MECH.)
BASE PU (OUTSERT)
PICK UP
ASSEMBLY GENERAL
SHAFT LEAD SCREW
MOTOR
ASSEMBLY PU
FEED
P.C. BOARD
Fig-(A)
SPRING
GUIDE FEED
(S5) (S5)
(L3)
(A)
(S3)
(A)
(C5)
(S4)
BLACK
RED
RUBBER R
SPRING SKEW (L4)
(A)
SHAFT PU SUB SHAFT PU MAIN
GUIDE FEED PU
BASE PU (OUTSERT)
CABLE FLEXIBLE
MOTOR ASSEMBLY PU FEED
Fig-10
10-5-3. Pick Up Assembly General
10-6. Motor (mech.)
1) Release the 3 Screws (S5) at bottom side.
2) Push down the Motor (Mech.) and separate from the
Base PU (Outsert).
10-7. Shaft Lead Screw
1) Push the Shaft Lead Screw in direction on arrow (A) a
little and lift up the Shaft Lead Screw.
10-8. Motor Assembly PU Feed.
1) Unlock the Locking tab (L3) and lift up the P.C.Board.
2) Unlock two Locking Tabs (L4) and push down the
Motor Assembly PU Feed.
3) Separate the Motor Assembly PU Feed from the Base
PU (Outsert).
Note: When reassembling, place the Motor Assembly PU
Feed as Fig-(A) and insert the Cable Flexible to the
Hole (A) of the Base PU (Outsert). (See Fig-(A))
10-9. Motor (mech.)

10
11.Base Assembly Main (Fig-11)
11-1. Holder Assembly Deck On
1) Push the Locking tabs (L5) at bottom side of the Holder
Assembly Deck On in direction of arrow (A) and
separate to bottom side. (See Fig-(A))
11-2. Frame Assembly Up/Down.
1) Push the two Locking tabs (L6) and lift up the Frame
Assembly Up/Down.
Note: When reassembling, insert the Lever (R1) of the
Frame Assembly Up/Down to the Groove (R2) of the
Gear Emergency and lock the two Locking Tabs
(L6). (See Fig-(B))
11-3. Rubber F
11-4. Belt Loading
11-5. Gear Pulley
1) Release the Screw (S6) and lift up the Gear Pulley.
11-6. Gear Loading
11-7. Gear Emergency
Note: When reassembling, confirm that the Hole (A) of the
Cam Loading is aligned to the Hole (B) of the Gear
Emergency as Fig-(C).
For this alignment, place the Gear Emergency and
Cam Loading as Fig-(D), and then move the Gear
Emergency in direction of arrow (B) until these two
gears are aligned as Fig-(C).
11-8. Cam Loading
11-9. Motor Assembly Loading
1) Release two Screws (S7).
2) Unlock the Locking tab (L7) and separate the Motor
Assembly Loading to bottom side.
Note: When reassembling, confirm that the Connector (2
Pin) is aligned as Fig-(E)
11-10.Base Main
Fig-11
(R1)
(R2)
MOTOR ASSEMBLY LOADING
Fig-(E) Fig-(A)
BOTTOM SIDE VIEW
BASE MAIN
HOLDER
ASSEMBLY
DECK ON
(L7)
(L6)
(R2)
(R1)
(S6)
(L6)
(L5)
(L5)
(A)
BELT LOADING
GEAR EMERGENCY
Fig-(B)
Fig-(D)
Fig-(C)
CAM LOADING
CONNECTOR(2 PIN)
GEAR LOADING
GEAR PULLY
FRAME ASSEMBLY UP/DOWN
RUBBER F
(S7)