Sharp DV-SL90UA User manual

1
DV-SL90UA
S74X3DV-SL90U
SERVICE MANUAL
In the interests of user-safety (Required by safety
regulations in some countries) the set should be
restored to its original condition and only parts
identical to those specified be used.
MODEL
SERVICE MANUAL DVD VIDEO PLAYER MODEL DV-SL90UA
DVD VIDEO PLAYER
This document has been published to be used for
after sales service only.
Thecontentsaresubjecttochangewithoutnotice.
SHARP CORPORATION
DV-SL90UA
Page
SPECIFICATIONS ............................................................................................................................. 1-1-1
LASER BEAM SAFETY PRECAUTIONS .......................................................................................... 1-2-1
IMPORTANT SAFEGUARDS AND PRECAUTIONS......................................................................... 1-3-1
STANDARD NOTES FOR SERVICING............................................................................................. 1-4-1
OPERATING CONTROLS AND FUNCTIONS .................................................................................. 1-5-1
CABINET DISASSEMBLY INSTRUCTIONS ..................................................................................... 1-6-1
FIRMWARE RENEWAL MODE (FIRMWARE VERSION UP)...........................................................1-7-1
TROUBLESHOOTING ....................................................................................................................... 1-8-1
BLOCK DIAGRAMS........................................................................................................................... 1-9-1
SCHEMATIC DIAGRAMS/ CBA’S AND TEST POINTS .................................................................. 1-10-1
WAVEFORMS & VOLTAGE CHART............................................................................................... 1-11-1
WIRING DIAGRAM .......................................................................................................................... 1-12-1
SYSTEM CONTROL TIMING CHARTS .......................................................................................... 1-13-1
IC PIN FUNCTION DESCRIPTIONS ............................................................................................... 1-14-1
LEAD IDENTIFICATIONS................................................................................................................ 1-15-1
EXPLODED VIEWS ......................................................................................................................... 1-16-1
MECHANICAL PARTS LIST ............................................................................................................ 1-17-1
ELECTRICAL PARTS LIST ............................................................................................................. 1-18-1
CONTENTS
The region number for this DVD player is 4.
4

1-1-1 E592BSP
SPECIFICATIONS
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : AC 110 V - 240 V 50/60Hz
3. Load imp. : 100 k ohm
4. Room ambient : 5 °C ~ 40 °C
ITEM CONDITIONS UNIT NOMINAL LIMIT
1 Video Output 75 ΩVpp 1.0 ±0.1
2 Coaxial Digital Out mVpp 500
3 Audio (PCM)
3-1. Output Level 1 kHz 0 dB Vrm 2.0
3-2. S/N dB 120
3-3. Freq. Response
DVD fs=48 kHz 20 ~ 22 kHz dB ±0.5
CD fs=44.1 kHz 20 ~ 20 kHz dB ±0.5
3-4. THD +N
1k Hz 0 dB % 0.0025
1k Hz 0 dB % 0.003
4 Power consumption 14 W (Standby: 2.0 W)
5 Weight 2.9 lbs (1.3kg)
6 Dimension 435 mm X 51 mm X 211 mm

1-2-1 DVD_LASER
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against
your skin.
Thelaser beamisemittedfromthelocation showninthefigure.Whencheckingthelaserdiode,besuretokeep your
eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
D
rive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable

1-3-1 E5943IMP
1. IMPORTANT SERVICE NOTES
BEFORE RETURNING THE DVD VIDEO PLAYER
Before returning the DVD video player to the user,
perform the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the DVD video
player.
2. Inspect all protective devices such as non-metallic
control knobs, insulation materials, cabinet backs,
adjustmentandcompartmentcoversorshields,isola-
tion resistor/capacitor networks, mechanical insula-
tors etc.
3. To be sure that no shock hazard exists, check for
current in the following manner.
Plug the AC line cord directly into a 230 volt AC outlet
(Do not use an isolation transformer for this test).
Using two clip leads, connect a 1.5k ohm, 10 watt
resistorparalleledbya0.15µFcapacitorinserieswith
all exposed metal cabinet parts and a known earth
ground, such as a water pipe or conduit.
UseanDVMorVOMwith1000ohmpervolt,orhigher,
sensitivityor measure theAC voltagedrop across the
resistor (See Diagram).
Move the resistor connection to earth exposed metal
parthavingareturnpathtothechassis(metalcabinet,
screw heads, knobs and control shafts, etc.) and
measure the AC voltage drop across the resistor.
ReversetheACplugonthesetandrepeatACvoltage
measurementsforeachexposedpart.Anyreadingof
1.4Vrms(thiscorrespondsto0.7mArmsAC.)ormore
is excessive and indicates a potential shock hazard
which must be corrected before returning the DVD
video player to the owner.
1. NOTES DE SERVICE IMPORTANTES
AVANT DE RENDRE LE REPRODUCTOR DE VíDEO
DVD
AvantderendrelereproductordevídeoDVDàl’utilisateur,
effectuer les vérifications de sécurité suivantes.
1. Vérifier toutes les gaines de fil pour être sûr que les fils
ne sont pas pincés ou que le matériel n’est pas coincé
entrelechâssisetlesautrespièces métalliques dans le
reproductor de vídeo DVD.
2. Vérifier tous les dispositifs de protection tels que les
boutonsdecommandenonmétalliques,lesmatériaux
d’isolement, le dos du coffret, les couvercles de
compartiment et ajustement ou les boucliers, les
réseauxderésistance/condensateurd’isolement,Ies
isolateurs mécaniques, etc.
3. Pourêtresûrqu’iln’yaaucunrisquedechocélectrique,
vérifier le courant de fuite de la maniére suivante.
Brancherlecordond’alimentationsecteurdirectement
dansuneprisedecourantde230volts.(Nepasutiliser
de transformateur d’isolement pour cet essai).
Utiliser deux fils à pinces et connecter une résistance
de10watts1,5kohmenparallèleavecuncondensateur
de0,15µFensérieavecdespiècesducoffretmétallique
exposées et une masse de terre connue telle qu’un
tuyau ou un conduit d’eau.
Utiliser un DVM ou VOM avec une sensibilité de 1000
ohms par volt ou plus ou mesurer la chute de tension
CA entre la résistance (voir diagramme).
Déposer la connexion de la résistance à toutes les
pièces métalliques exposées ayant un parcours de
retour au châssis (coffret métallique, tétes de vis, bou-
tons et arbres de commande, etc.) et mesurer la chute
de tension CA entre la résistance. Inverser la fiche CA
(une fiche intermédiaire non polarisée doit être utilisée
à seule fin de faire ces vérifications.) sur l’appareil et
répéter les mesures de tension CA pour chaque piéce
métallique exposée. Toute lecture de 1,4 V rms (ceci
correspond à 0,7 mA rms CA) ou plus est excessive et
signaleundangerdechocquidoitêtrecorrigéavantde
rendre le reproductor de vídeo DVD à son utilisateur.
IMPORTANT SAFEGUARDS AND PRECAUTIONS
SSVM
AC SCALE
1.5k ohms.
10W
0.15
TEST PROBE
T
O EXPOSED
M
ETAL PARTS
CONNECT TO
KNOWN EARTH
GROUNG
F
VTVM
AC SCALE
1.5k ohms
10W
CONNECT TO
KNOWN EARTH
GROUND
TO EXPOSED
METAL PARTS
TEST PROBE
0.15 F

1-4-1 DVD_NOTE2
NOTE: CBA AND PWB MEANS PRINTED WIRING
BOARD.
Circuit Board Indications
a. Theoutputpinofthe3pinRegulatorICsisindicated
as shown.
Top View
Out In
Bottom View
Input
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
5
10
Pin 1
< Bottom View >
c. The 1st pin of every male connector is indicated as
shown.
Pin 1
< Bottom View >
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
FoilConnector)cable,besuretofirstdisconnectthe
AC cord.
2. FFC (Flexible Foil Connector) cable should be in-
serted parallel into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Using lead-free wire solder
WhenfixingthePWBsolderedwiththelead-freesolder,
applylead-freewiresolder.Repairingwithconventional
lead wire solder may cause damage or accident due to
cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is
higherthantheleadwiresolderby40°C,werecommend
you to use a dedicated soldering bit, if you are not
familiar with how to obtain lead-free wire solder or
soldering bit, contact our service station or service
branch in your area.
Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is
about220°Cwhichishigherthantheconventionallead
solderby40°C,andasithaspoorsolderwettability,you
may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, Since the
landmaybepeeledofforthemaximumheat-resistance
temperature of parts may be exceeded, remove the bit
from the PWB as soon as you confirm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the
soldering bit may be easily corroded. Make sure to turn
on and off the power of the bit as required.
If a different type of solder stays on the tip of the
soldering bit, it is alloyed with lead-free solder. Clean
the bit after every use of it.
When the tip of the soldering bit is blackened during
use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication
on the PWB silk.
Lead-free wire solder for servicing
STANDARD NOTES FOR SERVICING
Part No. Description Code
ZHNDAi123250E J 0.3mm 250g(1roll) BL
ZHNDAi126500E J 0.6mm 500g(1roll) BK
ZHNDAi12801KE J 1.0mm 1kg(1roll) BM

1-4-2 DVD_NOTE2
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
(1)Prepare the hot-air flat pack-IC desoldering ma-
chine,thenapply hot airtotheFlat Pack-IC (about5
to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
(2)Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. Donotsupplyhotairto the chip parts aroundtheflat
pack-IC for over 6 seconds because damage to the
chip parts may occur. Put masking tape around the
flat pack-IC to protect other parts from damage.
(Fig. S-1-2)
2. The flat pack-IC on the CBA is affixed with glue, so
becarefulnottobreakordamagethefoilofeachpin
or the solder lands under the IC when removing it.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
With Soldering Iron:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
whichisappliedtoallpinsoftheflatpack-IC,youcan
remove it easily. (Fig. S-1-3)
Flat Pack-IC Desoldering Braid
Soldering Iron
Fig. S-1-3
(2)Lift each leadoftheflat pack-IC upwardonebyone,
using a sharp pin or wire to which solder will not
adhere(ironwire).Whenheatingthepins,useafine
tip soldering iron or a hot air desoldering machine.
(Fig. S-1-4)
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
whichisappliedtoallpinsoftheflatpack-IC,youcan
remove it easily. (Fig. S-1-3)
(2)Affixthewiretoaworkbenchorsolidmountingpoint,
as shown in Fig. S-1-5.
(3)While heating the pins using a fine tip soldering iron
orhot airblower, pull up the wireas thesolder melts
so as to lift the IC leads from the CBA contact pads
as shown in Fig. S-1-5.

1-4-3 DVD_NOTE2
(4)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Note:
When using a soldering iron, care must be taken to
ensurethattheflatpack-ICisnotbeingheldbyglue.
When the flat pack-IC is removed from the CBA,
handle it gently because it may be damaged if force
is applied.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldeing Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
2. Installation
(1)Usingdesolderingbraid,removethesolderfromthe
foilof eachpin ofthe flatpack-IC onthe CBAso you
can install a replacement flat pack-IC more easily.
(2)The“ ”markontheflatpack-ICindicatespin1.(See
Fig. S-1-7.) Be sure this mark matches the 1 on the
PCB when positioning for installation. Then presol-
der the four corners of the flat pack-IC. (See Fig. S-
1-8.)
(3)Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark. Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8

1-4-4 DVD_NOTE2
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occurduetoapotentialdifferencecausedbyelectrostatic
charge during unpacking or repair work.
1. Ground for Human Body
Besuretowearagroundingband(1MΩ)thatisproperly
grounded to remove any static electricity that may be
charged on the body.
2. Ground for Workbench
Besuretoplaceaconductivesheetorcopperplatewith
proper grounding (1MΩ) on the workbench or other
surface, where the semi-conductors are to be placed.
Becausethestaticelectricitychargeonclothingwillnot
escapethrough the body grounding band, be careful to
avoid contacting semi-conductors with your clothing.
CBA
< Incorrect >
CBA
Grounding Band
Conductive Sheet or
Copper Plate
< Correct >

1-5-1 E592 BIB
OPERATING CONTROLS AND FUNCTIONS
11 13 14 161512
10
REAR VIEW
FRONT PANEL
REMOTE CONTROL
10. REV Button
Fast reverse playback to a desired point.
11. PLAY Button
Starts playback of the disc contents.
12. SETUP Button
Press to enter the setup mode or to change setup item
s.
13. MODE Button
Activates program playback or random playback
mode.(CD/MP3)
Activates the Virtual Surround or Rapid Play.(DVD)
14. ZOOM Button
Enlarges part of a DVD-reproduced image.
15. TOP MENU Button
Displays the title menu.
16. ENTER Button
Press to accept a setting.
17. RETURN Button
Returns to the previous operation.
18. Arrow Buttons ( / / / )
Use when making settings while watching the display o
n
a TV screen.
19. MENU Button
Displays the DVD menus and MP3 file lists.
20. STOP Button
Stops operation of the disc.
21. FWD Button
Fast forwards playback to a desired point.
22. SKIP
Button
Plays back from the beginning of the current chapter
or
track.
23. SKIP
Button
Plays back from the beginning of the next chapter
or
track.
24. Numerical Buttons
25. OPEN/CLOSE Button
Press to insert discs into or remove them from the tray
.
26. SEARCH MODE Button
Press to locate a desired point or to memorize yo
ur
favorite places on a disc.
1. DISPLAY Button
Displays the current status on the TV screen for checking
purposes.
2. POWER Button
Press to turn the power on and off.
3. AUDIO Button
Press to select a desired audio language or sound mode.
4. SUBTITLE Button
Press to select a desired subtitle language.
5. ANGLE Button
Press to change the camera angle to see the sequence
being played back from a different angle.
6. REPEAT Button
Repeats playback of the current disc, title, chapter or
track.
7. A-B REPEAT Button
Repeats playback of a selected section.
8. CLEAR Button
Resets a setting.
9. PAUSE Button
Pause playback temporarily/frame-by-frame playback.
1. POWER
to switch the player to ON or OFF
2. SKIP / REV
goes to previous chapter or track during playback; press
and hold for 1.5 seconds for a reverse search
3. PLAY
to start or resume disc playback
4. SKIP / FWD
goes to next chapter or track during playback; press and
hold for 1.5 seconds for a forward search
5. STOP
to stop playback
6. OPEN/CLOSE
to open/close the disc tray
7. Disc tray
8. Remote sensor window
9. Display
1
0. MAINS (AC Power Cord)
connect to a standard AC outlet
11. OPTICAL (Digital audio out)
connect to digital (optical) audio equipment
12. COAXIAL (Digital audio out)
connect to AUDIO inputs of a digital (coaxial) audio
equipment
13. AUDIO OUT (Left/Right)
connect to AUDIO inputs of an amplifier, receiver or
stereo system
14. VIDEO OUT
connect to the Video Input of a TV
15. COMPONENT VIDEO OUT
connect to a TV with Component video in jacks
16. S-VIDEO OUT
connect to a TV with S-Video inputs
CAUTION:
Do not touch the inner pins of the jacks on the rea
r
panel. Electrostatic discharge may cause perma-
nent damage to the player.

1-6-1 E592BDC
CABINET DISASSEMBLY INSTRUCTIONS
NOTE: CBA AND PWB MEANS PRINTED WIRING
BOARD.
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
followthestepsinreverseorder.Bend,route,anddress
the cables as they were originally.
1: Identification (location) No. of parts in the figures
2: Name of the part
3: Figure Number for reference
4: Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or de-
soldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector,
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g.5(S-1) = five Screws (S-1),
2(L-2) = two Locking Tabs (L-2)
5: Refer to "Reference Notes."
About tightening screws
Whentighteningscrews,tightenthemwiththefollowing
torque.
Screws Torque
(S-1), (S-2), (S-3A), (S-4), 0.45 ±0.05 N•m
(S-5), (S-6)
(S-3B) 0.38 ±0.04 N•m
Reference Notes
CAUTION 1: Locking Tabs (L-1), (L-2) and (L-3) are
fragile. Be careful not to break them.
1-1. Release four Locking Tabs (L-1). Then, release
three Locking Tabs (L-2).
1-2. Release three Locking Tabs (L-3). Then remove
the Front Assembly.
CAUTION2:Electrostaticbreakdownofthelaserdiode
in the optical system block may occur as a potential
differencecausedby electrostatic chargeaccumulated
on cloth, human body etc., during unpacking or repair
work.
To avoid damage of pickup follow next procedures.
2-1. Shortthethreeshortlands(eitheroftwoplaces)of
FPC cable with solder before removing the FFC
cable (CN201) from it as shown in “View for A” in
Fig. 4. If you disconnect the FFC cable (CN201),
thelaserdiodeofpickupwillbedestroyed.(Fig.4)
2-2. Disconnect Connectors (CN301), (CN401) and
(CN601). Remove two Screws (S-3A) and (S-3B)
and lift the DVD Main CBA Unit. (Fig. 4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. 4)
2. Disassembly Method
[2] Front Assembly
[3] Reinforce Plate
[4] DVD Main CBA Unit
[5] DVD Mecha [6] AV CBA
[7] Function CBA
[1] Top Case
REMOVAL
ID/
LOC.
No.
Fig.
No.
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
Note
PART
[1] Top Case 1 3(S-1) -
[2] Front 2 *4(L-1), *3(L-2), 1
Assembly *3(L-3), 1-1
1-2
[3] Reinforce 3 3(S-2) -
Plate
[4] DVD Main 4 (S-3A), (S-3B), 2
CBA Unit *CN201, *CN301, 2-1
*CN401, *CN601 2-2
3
[5] DVD 5 4(S-4)
Mecha
[6] AV CBA 6 (S-5), 5(S-6), *2(L-5) -
[7] Function 6 *CN2001 -
CBA
↑↑↑ ↑ ↑
123 4 5

1-6-2 E592BDC
(S-1)
[1]Top Case
Fig. 1
(L-2)
(L-3)
(L-1)
(L-1)
Fig. 2
[2] Front Assembly
(S-2)
Fig. 3
[3] Reinforce Plate
(S-3B) (S-3A)
CN201
CN301
CN401
CN601
A
Fig. 4
[4] DVD Main
CBA Unit
View for A
Short the three short lands
by soldering.
(Either of two places.)
Short
lands
Short lands
FPC Cable
OR
Solder
Solder
(S-4) (S-4)
(S-4)
[5] DVD Mecha
Fig. 5

1-6-3 E592BDC
HOW TO EJECT MANUALLY (Method 1)
1 Remove the Top Case.
2 Remove the Reinforce Plate.
3 Rotate the roulette in the direction of the arrow as shown below.
(S-5)
(S-6)
CN2001
(L-5)
[6] AV CBA
[7] Function CBA
Fig. 6
A
View for A
Rotate this roulette in
the direction of the arrow

1-6-4 E592BDC
HOW TO EJECT MANUALLY (Method 2)
1 Turn the unit over.
2 Insert the shaft less than a diameter of 3 mm (e.g. screwdriver) straightly into the opening
as shown.
3 Turn the shaft along with the opening clockwise.
4 Repeat steps 2 and 3 until the tray will open.
5 Pull the tray slowly with a hand.
B
Turn the shaft along with
the opening clockwise.
Rear
Front
Opening
Shaft
(e.g. screwdriver)
View for B

1-7-1 E592BTEST
FIRMWARE is built-in program to operate DVD player.
To get rid of error when playing new software (disc) in
the market, FIRMWARE version is updated. Perform
the following to update the FIRMWARE version.
NOTES:
a. This unit can not read data which is written with
packet write software (ex. B's Clip).
b. The file system should be set to Joliet or ISO9660
(except ISO9660 LEVEL 1).
c. Set the CD-ROM to Mode 1 or Mode 2.
d. The CD-ROM needs to be finalized (be closed
session).
1. Turn the power on and remove the disc on the tray.
2. To put the DVD player into version up mode, press
[9],[8],[7],[6],and[SEARCHMODE]buttonsonthe
remote control unit in that order. The tray will open
automatically.
Fig. a appears on the screen and Fig. b appears on
the VFD (Vacuum Fluorescent Display).
F/W Version Up Mode Model No : *******
VERSION : *.**
Please insert a DISC
for F/WVersion Up.
EXIT: POWER
"*******" differ depending on the model
s.
Fig. a Version Up Mode Screen
F
ig. b VFD in Version Up Mod
e
TheDVD player can also enterthe version upmode
with the tray open. In this case, Fig. a will be shown
on the screen while the tray is open.
3. Load the disc for version up.
4. The DVD player enters the F/W version up mode
automatically.Fig.c appears onthescreen and Fig.
d appears on the VFD. If you enter the F/W for
different models, "Disc Error" will appear on the
screen, then the tray will open automatically.
FIRMWARE RENEWAL MODE (FIRMWARE VERSION UP)
VERSION : E5****_****.ab5
Reading...(*1)
F/W Version Up Mode Model No : *******
VERSION : *.**
Fig. c Programming Mode Screen
"*******" differ depending on the model
s.
F
ig. d VFD in Programming Mode (Exampl
e)
The appearance shown in (*1) of Fig. c is described
as follows:
AppearanceNo. State
Reading... Sending files into the memory
Erasing... Erasing previous version data
Programming...
1
2
3 Writing new version data
5. After programming is finished, the tray opens auto-
matically. Fig. e appears on the screen and the
checksum in (*2) of Fig. e appears on the VFD.
(Fig. f)
VERSION : E5****_****.ab5
Completed
SUM : 7ABC (*2)
F/W Version Up Mode Model No : *******
VERSION : *.**
"*******" differ depending on the model
s.
Fig. e Completed Program Mode Screen
F
ig. f VFD upon Finishing the Programming Mode (Exampl
e)
At this time, no buttons are available.
6. Remove the disc on the tray.
7. Unplug the AC cord from the AC outlet. Then plug it
again.
8. Turn the power on by pressing the [POWER] button
and the tray will close.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.

1-7-2 E592BTEST
MODEL : *******
Version : *.**
Region : *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
"*******" differ depending on the model
s.
10.Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
MODEL : *******
Version : *.**
Region : *
EEPROM CLEAR : OK
EXIT: POWEREEPROM CLEAR : CLEAR
"*******" differ depending on the model
s.
Fig. h
When "OK" appears on the screen, the factory
default will be set. Then the firmware renewal mode
is complete.
11.To exit this mode, press [POWER] button.

1-8-1 E592BTS
TROUBLESHOOTING
Table of Contents for the Troubleshooting Flow Charts
NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD.
No.
Chart
Flow Description Page
1
The power cannot be turned on.
1-8-2
2
The fuse blows out.
1-8-2
3
When the output voltage fluctuates.
1-8-2
4
When buzz sound can be heard in the vicinity of power circuit.
1-8-2
5
-FL is not outputted.
1-8-2
6
P-ON+10V (EV+11V) is not outputted.
1-8-3
7
P-ON+5V is not outputted. (EV+11V is outputted normally.)
1-8-3
8
P-ON+3.3V is not outputted. (P-ON+10 V is outputted normally.)
1-8-3
9
EV+5V is not outputted.
1-8-3
10
EV+1.2V is not outputted.
1-8-3
11
The fluorescent display tube does not light up.
1-8-4
12
The key operation is not functioning.
1-8-4
13
No operation is possible from the remote control unit.
1-8-4
14
The disc tray cannot be opened and closed.
(It can be done using the remote control unit.)
1-8-5
15
The disc tray cannot be opened and closed.
1-8-5
16
[No Disc] indicated.
1-8-5
17
Both functions of picture and sound do not operate normally.
1-8-5
18
Picture does not appear normally.
1-8-6
19
Audio is not outputted normally.
1-8-7

1-8-2 E592BTS
FLOW CHART NO.2
The fuse blows out.
After servicing, replace the fuse.
Check the presence that the primary component
is leaking or shorted and service it if defective. Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of
secondary side, and service it if defective.
FLOW CHART NO.3
When the output voltage fluctuates.
Yes
No
FLOW CHART NO.4
When buzz sound can be heard in the vicinity of power circuit.
Check if there is any short-circuit on the rectifying diode and the circuit in each rectifying circuit of the secondary
side, and service it if defective. (D1003, D1006, D1008, D1016, D1030, IC1002, Q1002, Q1004, Q1005, Q1011)
Does the photo coupler circuit on the secondary
side operate normally?
Check IC1001, D1012, D1024 and their periphery,
and service it if defective.
Check IC1001, IC1006, D1048 and their
periphery, and service it if defective.
FLOW CHART NO.5
-FL is not outputted.
Is approximately -23V voltage supplied to the
anode of D1003? Check D1003 and periphery circuit, and service it
if defective.
Check if there is any leak or short-circuit
on the loaded circuit, and service it if defective.
Yes
No
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Is normal state restored when once unplugged
power cord is plugged again after several seconds?
Is the EV +3.3V line voltage normal?
See FLOW CHART No.2 <The fuse blows out.>
Check if there is any leak or short-circuiting on the
primary circuit component, and service it if defective
.
(Q1003, Q1001, Q1008, T1001, D1001, D1002,
D1004, D1005, D1011, C1003, C1005)
Check each rectifying circuit of the secondary circuit
and service it if defective.
Yes
Yes
Yes
No
No
No

1-8-3 E592BTS
FLOW CHART NO.7
P-ON+5V is not outputted. (EV+11V is outputted normally.)
Is the "H" signal inputted into the base of Q1004?
Replace Q1004.
Check R1068 and D1046, and service it if defective
.
Yes
No
FLOW CHART NO.8
P-ON+3.3V is not outputted. (P-ON+10 V is outputted normally.)
Is 3.3V voltage supplied to the collector of Q1011?
Replace Q1011 or R1067.
Check D1008, C1007, C1038, L1007 and the
periphery circuit, and service it if defective.
Yes
No
FLOW CHART NO.9
EV+5V is not outputted.
Is EV+11V outputted normally?
Check D1047 and the periphery circuit,
and service it if defective.
Refer to "FLOW CHART NO.6"
<P-ON+10V (EV+11V) is not outputted.>
Yes
No
FLOW CHART NO.10
EV+1.2V is not outputted.
Is 2.5V voltage supplied to Pin(1) of IC1002?
Replace IC1002.
Check D1006, C1014, L1008 and the periphery
circuit, and service it if defective.
Yes
No
FLOW CHART NO.6
P-ON+10V (EV+11V) is not outputted.
Is 11V voltage supplied to the emitter of Q1002?
Is the voltage of base on Q1002 lower than the
voltage of emitter on Q1002 when turning the power on?
Replace Q1002.
Check D1030, D1048, C1035, C1048, L1009 and
the periphery circuit, and service it if defective.
Check Q1016 and PWRCON line and service it if
defective.
Yes
Yes
No
No

1-8-4 E592BTS
Yes No
FLOW CHART NO.12
The key operation is not functioning.
Are the contact point and the installation state of the
key switches (SW2101, SW2104-2108) normal?
When pressing each switches (SW 2101-2108 ), do
the voltage of each pin of IC2001 (shown below)
increase?
SW2104, 2106, 2107: IC2001 3PIN
SW2101, 2105, 2108: IC2001 4PIN
Check the switches (
SW2101, SW2104-2108 ) and
their periphery, and service it if detective.
No Re-install the switches (
SW2101, SW2104-2108 )
correctly or replace the poor switch.
Replace IC2001. Yes
FLOW CHART NO.13
No operation is possible from the remote control unit.
Operation is possible from the DVD, but no
operation is possible from the remote control unit.
Replace the infrared remote control receiver (RM2001
).
Or replace the remote control unit.
Check the line between Pin(1) terminal of receiver
(RM2001) and Pin(22) of CN1001, and service it if
defective.
Is the "L" pulse sent out Pin(1) terminal of receiver
(RM2001) when the infrared remote control is activated?
Is the "L" pulse supplied to the Pin(22) of CN1001?
Replace DVD Main CBA.
Is 5V voltage supplied to Pin(3) terminal of
the infrared remote control receiver (RM2001)?
Yes No
Check EV+5V line and service it if defective.
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
FLOW CHART NO.11
The fluorescent display tube does not light up.
Is 3.3V voltage supplied to Pins(6,24) of IC2001?
Is the voltage of approximately -20V supplied to
Pin(15) of IC2001?
Is there 500kHz oscillation at Pin(26) of IC2001?
Are the filament voltage supplied between
Pins(1, 2) and Pins(29, 30) of the fluorescent
display tube? And the negative voltage applied
between these pins and GND?
Replace the fluorescent display tube.
Check the EV+3.3V line and service it if defective.
Check the -FL (-20V) line and service it if defective
.
Check R2002, IC2001 and their periphery, and
service it if defective.
Check PWRCON
line, and service
it if defective.
Is the "H" signal inputted
to base of Q1016?
Check D1016, D1017,T1001, and their periphery,
and service it if defective.
Is -15V voltage supplied to collector of Q1005?
No
Yes
YesNo
Check Q1015, Q1016, D1055, and
their periphery, and service it if defective.

1-8-5 E592BTS
FLOW CHART NO.16
[No Disc] indicated.
Replace the DVD Main CBA.
No improvement can be found. Original DVD Main CBA is poor.
Replace the DVD Mecha.
No
Yes
Yes
FLOW CHART NO.15
The disc tray cannot be opened and closed.
Replace the DVD Main CBA.
Original DVD Main CBA is poor.
Replace the DVD Mecha.
No improvement can be found. No
Yes
FLOW CHART NO.14
The disc tray cannot be opened and closed. (It can be done using the remote control unit.)
Is the normal control voltage inputted to Pin(4) of
IC2001?
Refer to "FLOW CHART NO.12" <The key
operation is not functioning.>
Refer to "FLOW CHART NO.15" <The disc tray
cannot be opened and closed.>
Replace the "OPEN/CLOSE" button (SW2108).
No
FLOW CHART NO.17
Both functions of picture and sound do not operate normally.
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
No improvement can be found. Original DVD Main CBA is poor.