MECHANICAL PARTS LIST ............................................................................................................1-17-1
ELECTRICAL PARTS LIST ............................................................................................................. 1-18-1
4
MODEL
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.
CONTENTS
DV-SL90UM
Page
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1
SPECIFICATIONS
ITEMCONDITIONSUNITNOMINALLIMIT
1 Video Output75 ΩVpp1.0±0.1
2 Coaxial Digital OutmVpp500
3 Audio (PCM)
1k Hz 0 dB%0.003
4 Power consumption14 W (Standby: 2.0 W)
5 Weight2.9 lbs (1.3kg)
6 Dimension435 mm X 51 mm X 211 mm
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : AC 110 V - 240 V 60Hz
3. Load imp. : 100 k ohm
4. Room ambient : 5 °C ~ 40 °C
1-1-1
E5945SP
LASER BEAM SAFETY PRECAUTIONS
D
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.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep 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.
rive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
1-2-1
DVD_LASER
IMPORTANT SAFEGUARDS AND PRECAUTIONS
T
M
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,
adjustment and compartment covers or shields, isolation resistor/capacitor networks, mechanical insulators 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
resistor paralleled by a 0.15µF capacitor in series with
all exposed metal cabinet parts and a known earth
ground, such as a water pipe or conduit.
Use an DVM or VOM with 1000 ohm per volt, or higher,
sensitivity or measure the AC voltage drop across the
resistor (See Diagram).
Move the resistor connection to earth exposed metal
part having a return path to the chassis (metal cabinet,
screw heads, knobs and control shafts, etc.) and
measure the AC voltage drop across the resistor.
Reverse the AC plug on the set and repeat AC voltage
measurements for each exposed part. Any reading of
1.4V rms (this corresponds to 0.7mA rms AC.) or more
is excessive and indicates a potential shock hazard
which must be corrected before returning the DVD
video player to the owner.
SSVM
AC SCALE
1.5k ohms.
10W
F
0.15
TEST PROBE
O EXPOSED
ETAL PARTS
CONNECT TO
KNOWN EARTH
GROUNG
1. NOTES DE SERVICE IMPORTANTES
AVANT DE RENDRE LE REPRODUCTOR DE VíDEO
DVD
Avant de rendre le reproductor de vídeo DVD à l’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
entre le châssis et les autres pièces métalliques dans le
reproductor de vídeo DVD.
2. Vérifier tous les dispositifs de protection tels que les
boutons de commande non métalliques, les matériaux
d’isolement, le dos du coffret, les couvercles de
compartiment et ajustement ou les boucliers, les
réseaux de résistance / condensateur d’isolement, Ies
isolateurs mécaniques, etc.
3. Pour être sûr qu’il n’y a aucun risque de choc électrique,
vérifier le courant de fuite de la maniére suivante.
Brancher le cordon d’alimentation secteur directement
dans une prise de courant de 230 volts. (Ne pas utiliser
de transformateur d’isolement pour cet essai).
Utiliser deux fils à pinces et connecter une résistance
de 10 watts 1,5 kohm en parallèle avec un condensateur
de 0,15 µF en série avec des pièces du coffret métallique
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, boutons 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
signale un danger de choc qui doit être corrigé avant de
rendre le reproductor de vídeo DVD à son utilisateur.
VTVM
AC SCALE
1.5k ohms
10W
0.15 F
TEST PROBE
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
1-3-1
E5943IMP
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indicated
as shown.
Top View
Out
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
< Bottom View >
Input
In
Bottom View
5
Pin 1
10
c. The 1st pin of every male connector is indicated as
shown.
< Bottom View >
Pin 1
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect the
AC cord.
2. FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.
FFC Cable
Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder,
apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to
cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is
higher than the lead wire solder by 40°C, we recommend
you to use a dedicated soldering bit, if you are not
familiar with how to obtain lead-free wire solder or
soldening bit, contact our service station or service
ranch in your area.
Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is
about 220°C which is higher than the conventional lead
solder by 40°C, and as it has poor solder wettabillty, you
may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, Since the
land may be peeled off or the maximum heat-resistance
temperature of parts may be excoeded, remove the bit
from the PWB as soon as you conurm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the
soldering bit may be easily corroded. Make sure to tum
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.
Becareful when replacing parts with polarity indication
on the PWB silk.
Lead-free wire solder for servicing
Part No.DescriptionCode
ZHNDAi123250EJ0.3mm 250g(1roll)BL
ZHNDAi126500EJ0.6mm 500g(1roll)BK
ZHNDAi12801KEJ1.0mm 1kg(1roll)BM
Connector
CBA
* Be careful to avoid a short circuit.
1-4-1
DVD_NOTE2
How to Remove / Install Flat Pack-IC
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
With Soldering Iron:
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
(1) Prepare the hot-air flat pack-IC desoldering ma-
(2)Remove the flat pack-IC with tweezers while apply-
(3)Bottom of the flat pack-IC is fixed with glue to the
(4)Release the flat pack-IC from the CBA using twee-
Caution:
1. Do not supply hot air to the chip parts around the flat
2. The flat pack-IC on the CBA is affixed with glue, so
chine, then apply hot air to the Flat Pack-IC (about 5
to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
ing the hot air.
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)
zers. (Fig. S-1-6)
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)
be careful not to break or damage the foil of each pin
or the solder lands under the IC when removing it.
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Tweezers
Machine
Flat Pack-IC
Fig. S-1-2
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you can
remove it easily. (Fig. S-1-3)
(2)Lift each lead of the flat pack-IC upward one by one,
using a sharp pin or wire to which solder will not
adhere (iron wire). When heating the pins, use a fine
tip soldering iron or a hot air desoldering machine.
(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
which is applied to all pins of the flat pack-IC, you can
remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting point,
as shown in Fig. S-1-5.
(3)While heating the pins using a fine tip soldering iron
or hot air blower, pull up the wire as the solder melts
so as to lift the IC leads from the CBA contact pads
as shown in Fig. S-1-5.
1-4-2
DVD_NOTE2
(4)Bottom of the flat pack-IC is fixed with glue to the
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
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
ensure that the flat pack-IC is not being held by glue.
When the flat pack-IC is removed from the CBA,
handle it gently because it may be damaged if force
is applied.
Hot Air Blower
or
Iron Wire
2. Installation
(1)Using desoldering braid, remove the solder from the
foil of each pin of the flat pack-IC on the CBA so you
can install a replacement flat pack-IC more easily.
(2) The “
(3)Solder all pins of the flat pack-IC. Be sure that none
” mark on the flat pack-IC indicates pin 1. (See
Fig. S-1-7.) Be sure this mark matches the 1 on the
PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S1-8.)
of the pins have solder bridges.
To Solid
Mounting Point
CBA
Tweezers
Soldering Iron
Fig. S-1-5
Fine Tip
Soldeing Iron
Flat Pack-IC
Fig. S-1-6
1-4-3
DVD_NOTE2
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electrostatic
charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly
grounded to remove any static electricity that may be
charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate with
proper grounding (1MΩ) on the workbench or other
surface, where the semi-conductors are to be placed.
Because the static electricity charge on clothing will not
escape through the body grounding band, be careful to
avoid contacting semi-conductors with your clothing.
< Incorrect >
< Correct >
CBA
Grounding Band
CBA
Conductive Sheet or
Copper Plate
1-4-4
DVD_NOTE2
OPERATING CONTROLS AND FUNCTIONS
1-5-1
E592AIB
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and dress
the cables as they were originally.
[1] T op Case
[2] Front Assembly
[3] Reinforce Plate
[4] DVD Main CBA Unit
[5] DVD Mecha
[6] AV CBA
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 desoldered.
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."
[7] Function CBA
2. Disassembly Method
ID/
LOC.
No.
[1] Top Case13(S-1)[2] Front2*4(L-1), *3(L-2),1
[3]
[4]
[5] DVD54(S-4)
[6] AV CBA6(S-5), 5(S-6), *2(L-5)[7]
↑↑↑↑↑
12345
PART
Assembly*3(L-3),1-1
Reinforce
Plate
DVD
Main4(S-3A), (S-3B),2
CBA Unit*CN201, *CN301,2-1
Mecha
Function
CBA
Fig.
No.
33(S-2)-
6*CN2001-
REMOVAL
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
*CN401, *CN6012-2
Note
1-2
3
About tightening screws
When tightening screws, tighten them with the following
torque.
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.
CAUTION 2: Electrostatic breakdown of the laser diode
in the optical system block may occur as a potential
difference caused by electrostatic charge accumulated
on cloth, human body etc., during unpacking or repair
work.
To avoid damage of pickup follow next procedures.
2-1. Short the three short lands (either of two places) 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),
the laser diode of pickup will be destroyed. (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)
1-6-1
E592ADC
[1] T op Case
(S-1)
CN201
CN301
(S-3B)
(S-3A)
CN601
(L-1)
(L-3)
(L-1)
(L-2)
[2] Front Assembly
Fig. 1
Fig. 2
Short
lands
Short lands
Solder
OR
CN401
[4] DVD Main
CBA Unit
A
Short the three short lands
by soldering.
(Either of two places.)
FPC Cable
(S-2)
[3] Reinforce Plate
Fig. 3
Solder
(S-4)
View for A
Fig. 4
[5] DVD Mecha
(S-4)
(S-4)
1-6-2
Fig. 5
E592ADC
[7] Function CBA
(S-5)
CN2001
[6] AV CBA
(S-6)
(L-5)
Fig. 6
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.
Rotate this roulette in
the direction of the arrow
A
View for A
1-6-3
E592ADC
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.
View for B
Rear
Turn the shaft along with
the opening clockwise.
Shaft
(e.g. screwdriver)
Opening
B
Front
1-6-4
E592ADC
s.
F
e
s.
F
e)
FIRMWARE RENEWAL MODE
s.
F
e)
s.
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.
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 [DIRECT SKIP] buttons on the
remote control unit in that order. The tray will open
automatically.
Fig. a appears on the screen and Fig. b appears on
the VFD.
"
" differ depending on the model
*******
F/W Version Up ModeModel No : *******
Please insert a DISC
for F/W Version Up.
Fig. a Version Up Mode Screen
VERSION : *.**
EXIT: POWER
The appearance shown in (*2) of Fig. c is described
as follows:
AppearanceNo.State
1
Reading...Sending files into the memory
2
Erasing...Erasing previous version data
Programming...
3Writing new version data
5. After programming is finished, the tray opens automatically. Fig. e appears on the screen and the
checksum in (*3) of Fig. e appears on the VFD.
(Fig. f)
"
" differ depending on the model
*******
F/W Version Up Mode
VERSION : E5****_****.ab5
Completed
SUM : 7ABC (*3)
Fig. e Completed Program Mode Screen
Model No : *******
VERSION : *.**
ig. b VFD in Version Up Mod
The DVD player can also enter the version up mode
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 on the screen 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.
"
" differ depending on the model
*******
F/W Version Up ModeModel No : *******
VERSION : E5****_****.ab5
Reading...(*2)
Fig. c Programming Mode Screen
ig. d VFD in Programming Mode (Exampl
VERSION : *.**
ig. f VFD upon Finishing the Programming Mode (Exampl
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 [OPERATE]
button and the tray will close.
9. Press [1], [2], [3], [4], and [ON SCREEN] buttons on
the remote control unit in that order.
Fig. g appears on the screen.
"
" differ depending on the model
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
10.Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
1-7-1
E5945TEST
"
s.
" differ depending on the model
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
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 [OPERATE] button.
1-7-2
E5945TEST
FLOW CHART NO.1
.
The power cannot be turned on.
TROUBLESHOOTING
Is the fuse normal?
Yes
Is normal state restored when once unplugged
power cord is plugged again after several seconds?
Yes
Is the EV +3.3V line voltage normal?
Yes
Check each rectifying circuit of the secondary circuit
and service it if defective.
FLOW CHART NO.2
The fuse blows out.
Check the presence that the primary component
is leaking or shorted and service it if defective.
After servicing, replace the fuse.
FLOW CHART NO.3
When the output voltage fluctuates.
Does the photo coupler circuit on the secondary
side operate normally?
Yes
Check IC1001, D1012, D1024 and their periphery,
and service it if defective.
No
No
No
No
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
(Q1001, Q1003, Q1008, T1001, D1001, D1002,
D1004, D1005, D1011, C1003, C1005)
Check the presence that the rectifying diode or
circuit is shorted in each rectifying circuit of
secondary side, and service it if defective.
Check IC1001, IC1006, D1048 and their
periphery, and service it if defective.
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.
FLOW CHART NO.5
-FL is not outputted.
Is approximately -23V voltage supplied to the
anode of D1003?
Check if there is any leak or short-circuit
on the loaded circuit, and service it if defective.
Check D1003 and periphery circuit, and service it
if defective.
1-8-1
E592ATS
.
FLOW CHART NO.6
P-ON+10V (EV+11V) is not outputted.
Is 11V voltage supplied to the emitter of Q1002?
Yes
Is the voltage of base on Q1002 lower than the
voltage of emitter on Q1002 when turning the power on?
Yes
Replace Q1002.
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?
Yes
Replace Q1004.
FLOW CHART NO.8
P-ON+3.3V is not outputted. (P-ON+10V is outputted normally.)
Is 3.3V voltage supplied to the collector of Q1011?
Yes
Replace Q1011 or R1067.
No
No
No
No
Check D1030, D1048, C1035, C1048, L1007, and
the periphery circuit, and service it if defective.
Check Q1016 and PWRCON line and service it if
defective.
Check R1068 and D1046, and service it if defective
Check D1008, C1007, C1038, L1007, and the
periphery circuit, and service it if defective.
FLOW CHART NO.9
EV+5V is not outputted.
Is EV+11V outputted normally?
Yes
Check D1047 and the periphery circuit,
and service it if defective.
FLOW CHART NO.10
EV+1.2V is not outputted.
Is 2.5V voltage supplied to Pin(1) of IC1002?
Yes
Replace IC1002.
No
No
Refer to "FLOW CHART NO.6"
<P-ON+10V (EV+11V) is not outputted.>
Check D1006, C1014, L1008 and the periphery
circuit, and service it if defective.
1-8-2
E592ATS
.
FLOW CHART NO.11
.
The fluorescent display tube does not light up.
Is 3.3V voltage supplied to Pins(6,24) of IC2001?
Yes
Is the voltage of approximately -20V supplied to
Pin(15) of IC2001?
Yes
Is there 500kHz oscillation at Pin(26) of IC2001?
Yes
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?
Yes
Replace the fluorescent display tube.
FLOW CHART NO.12
The key operation is not functioning.
No
No
No
No
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 D1016, D1017, T1001, and their periphery,
and service it if defective.
No
Is -15V voltage supplied to collector of Q1005?
Yes
Is the "H" signal inputted
to base of Q1016?
Check Q1015, Q1016, D1055, and
their periphery, and service it if defective.
No
Yes
Check PWRCON
line, and service
it if defective.
Are the contact point and the installation state of the
key switches (SW2101, SW2104-2108) normal?
Yes
When pressing each switches (SW
2108
), do the voltage of each pin of IC2001
(shown below) increase?
SW2104, 2106, 2107: IC2001 3PIN
SW2101, 2105, 2108: IC2001 4PIN
Yes
Replace IC2001.
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.
Is 5V voltage supplied to Pin(3) terminal of
the infrared remote control receiver (RM2001)?
Yes
Is the "L" pulse sent out Pin(1) terminal of receiver
(RM2001) when the infrared remote control is activated?
Yes
Is the "L" pulse supplied to the Pin(22) of CN1001?
Yes
Replace DVD Main CBA.
2101, SW2104-
No
No
No
No
No
Re-install the switches (
correctly or replace the poor switch.
Check the switches (
their periphery, and service it if detective.
Check EV+5V line and service it if defective.
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.
SW2101, SW2104-2108
SW2101, SW2104-2108
)
) and
1-8-3
E592ATS
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