Sharp DV-L80U Service manual

SERVICE MANUAL

DV-L80U

SERVICE MANUAL

S00J5DV-L80U/

PORTABLE DVD VIDEO PLAYER

1. IMPORTANT SAFEGUARDS AND PRECAUTIONS .........................................................................2

2. FEATURES ........................................................................................................................................ 5

3. SPECIFICATIONS ............................................................................................................................. 5

4. PART NAMES.................................................................................................................................... 7

MODEL DV-L80U

5. DISASSEMBLY METHOD ................................................................................................................. 8

6. ADJUSTMENT METHOD................................................................................................................. 10

7. TEST MODE .................................................................................................................................... 16

8. TROUBLESHOOTING ..................................................................................................................... 19

9. BLOCK DIAGRAMS .........................................................................................................................22

10. SCHEMATIC DIAGRAMS ................................................................................................................30

11. PRINTED WIRING BOARD ASSEMBLIES...................................................................................... 46

12. REPLACEMENT PARTS LIST .........................................................................................................57

13. PACKING OF THE SET ...................................................................................................................71

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

D V-L80U

Page

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

DV-L80U

1. IMPORTANT SAFEGUARDS AND PRECAUTIONS

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 120 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

0.45V rms (this corresponds to 0.3mA 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

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

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 120 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 0,45 V rms (ceci correspond à 0,3 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 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

WARNING :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE

THIS APPLIANCE TO WET LOCATIONS.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK. DO NOT REMOVE COVER. NO USER·SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

This symbol warns the user of uninsulated voltage within the unit that can cause dangerous electric shocks.

This symbol alerts the user that there are important operating and maintenance instructions in the literature accompanying this unit.

CAUTION

This symbol mark means following. For continued protection against fire hazard, replace only with same type fuse F9801 (4A, 63V)/F901 (5A, 63V) on DCIN Jack PWB. CP9001, CP9002 (1.6A, 72V)/CP9003 (2A, 72V) on Main PWB.

1.5A 250V

DV-L80U

ATTENTION:POUR REDUIRE LES RESQUES D'INCENDIE OU DE CHOC ELECTRIQUE,

NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDITE.

ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

ATTENTION: AFIN DE REDUIRE LES RISQUES DE

CHOC ELECTRIQUE, NE PAS RETIRER LE COUVERCLE, AUCUN ORGANE INTERNE NE PEUT ETRE REPARE PAR L'UTIUSATEUR, CONFIER L'APPAREIL A UN DEPANNEUR QUALIFIE.

Ce symbole signale à l'utilisateur la présence d'une tension non isolée à l'intérieur de l'appareil qui peut être la cause de secousses électriques dangereuses.

Ce symbole avertit l'utilisateur que des instructions importantes relatives à l'utilisation et àl'entretien se trouvent dans le manuel accompagnant l'appareil.

ATTENTION

Ce symbole signifie que l'on devra utiliser un fusible de même type F9801 (4A, 63V)/F901 (5A, 63V) on DC-IN Jack PWB . CP9001, CP9002 (1.6A, 72V)/CP9003 (2A, 72V) on Main PWB.

1.5A 250V

Fuse Replacement Marking

4A 63V 5A 63V

On DC-IN Jack PWB Inside of Enclosure LCD front

1.75A 32V

1.6A 72V 2A 72V

Inside of Enclosure Bottom

DV-L80U

ËË

Ë NICKEL-CADMIUM BATTERY

ËË

The following program is available in the United States. Please consult local environmental authorities concerning the availability of this or other programs in your area.

åå

åCAUTION

åå

BEFORE BATTERY DESTROY

The RBRCTM Seal SHARP participates in the RBRCTM* Nickel-Cadmium Battery Recycling Program in the United States. The RBRCTM Seal on our battery pack contained in our product indicates that SHARP is voluntarily participating in an industry program to collect and recycle these batteries. The RBRCTM program provides you with a convenient alternative to placing spent Nickel-Cadmium battery packs into the trash or municipal waste stream, which is illegal in some areas. At the end of their useful life, the Nickel-Cadmium battery can be dropped off at the nearest collection center for recycling. For information on the nearest collection center, call 1-800-8-BATTERY or your local recycling center. If you are located outside the United States, contact your local authorities for information concerning proper disposal and/or recycling of this battery. SHARP's involvement in this program is part of our commitent to protecting our environment and conserving natural resources. [Footnote] *RBRC

TM is a trademark of the Rechargeable Battery Recycling Corporation.

ËË

Ë NICKEL-METAL HYDRIDE BATTERY

ËË ËË

Ë LITHIUM or LITHIUM-ION BATTERY

ËË ËË

Ë SEALED LEAD BATTERY

ËË

Battery disposal Contains the above Rechargeable Battery. must be recycled or disposed of properly. Remove the Battery from the products and contact Federal or State Environmental Agencies for information on recycling and disposal options.

2. FEATURES

This DVD video player can play back DVD video disc, DVD-RW, VIDEO CD and Audio CD.

• DVD-RW recorded in Video recording format can be played back. (You may not be able to play back a disc that is not finalized.)

8" LCD Screen and Stereo Speakers

• A big 8" LCD screen and built-in stereo speakers provide exciting DVD viewing, even without connecting to a TV.

2-WAY Power Supply

• A 2-way power supply allows operation using the supplied AC adapter for indoor play, or the battery pack (supplied) for outdoor play.

Compact, Lightweight Design

• Your DVD video player is designed to go along just about anywhere.

High-Resolution Images, High-Quality Sound

• A high-resolution 336,960-pixel LCD screen produces images of outstanding quality.

• DIGITAL GAMMA correction and DIGITAL SUPER PICTURE provide more realistic image detail.

• VIRTUAL DOLBY (*1QSURROUND) ensures richer sound from two built-in speakers.

AV input/output, optical digital output jack equipped as standard

• An optical digital output jack (which doubles as the audio input/output jack) can be used to output a stream of *2Dolby Digital 5.1 channel audio and *3DTS digital audio. Connecting a Dolby Digital/DTS digital surround processor or amplifier to this jack creates an environment of amazingly powerful surround sound.

• The AV input/output jack can be used to connect a VCR or camcorder to your DVD video player. Or you can use these jacks to connect to a TV for big-screen viewing. (Output only is supported for S-video. An S-video signal cannot be input to your DVD video player.)

DV-L80U

High-quality surround sound produced by built-in *2Dolby Digital/Dolby Surround (Pro Logic) decoder

• Your DVD video player is equipped with Dolby Digital (5.1ch)/Dolby Surround (Pro Logic) decoder as standard. Connecting an amplifier with 5.1ch input jacks to the DVD video player provides richer, more poweful surround sound.

*1QSURROUNDTM is a trademark of QSound Labs, Inc. *2Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol ( ) are

trademarks of Dolby Laboratories.

*3"DTS" and "DTS Digital Surround" are trademarks of Digital Theater Systems, Inc.

3. SPECIFICATIONS

Product: Portable DVD Video Player

Model: DV-L80U

Signal System: NTSC

Supported Disc Types: DVD (Region Number 1, ALL), DVD-RW (Video recording format),

VIDEO CD, Audio CD

Video Input/Output: Input/Output Jack: Mini jack × 1 (accepts supplied S-video/video cable)

Input/Output Levels: 1Vp-p (75Ω)

S-Video Output: Y Output Level: 1Vp-p (75Ω)

C Output Level: 0.286Vp-p (75Ω) Output Jack: Mini jack (shared with Video In/Out) × 1 (accepts supplied S-video/video cable)

Audio Input/Output: Input /Output Jack: Mini jack × 1 (accepts supplied audio cable)

Input/Output Levels: 1.7Vrms (1kHz, 0dB)

Digital Audio Interface: Optical digital output: Mini jack (shared with audio Input/Output)

Audio Output: 0.8W + 0.8W

Headphones Output: Output Jack: Mini jack (stereo)

Display: Screen Size: 8 inches (99.2 (357/64") (H) × 176.4 (615/16") (W) mm)

Type: Transmissive TN liquid crystal panel Drive: TFT (thin transistor) active matrix Pixels: 336,960 (234 (H) × 480 (W) × 3), Effective Pixel Rate: 99.99% minimum

DV-L80U

Speakers: Two 28mm round speakers Light Source: Internal (fluorescent) Video Signal: Horizontal Resolution: 500 lines

S/N Ratio: 60 dB

Audio Signals: Frequency Characteristics:

Linear PCM DVD: 4Hz to 22kHz (48kHz sampling)/

4Hz to 44kHz (96kHz sampling) CD: 4Hz to 20kHz (EIAJ) S/N Ratio: CD: 96 dB 1kHz (EIAJ) Dynamic Range: Linear PCM DVD: 96dB (EIAJ)

CD: 96dB (EIAJ)

Total Harmonic Distortion Ratio: 0.006% maximum (EIAJ)

Power Requirements: AC Adapter: 10V DC

Battery Pack: 7.4V DC

Power Consumption: Main Power On: 16.5W average (12.8W without AC Adapter)

(AC Adapter) Main Power Off: 1.3W (standby)

Dimensions: 211 (W) × 157 (D) × 24.7 (H) mm (85/16" × 63/16" × 63/64")

(except for projections)

Weight (approx.): 840g (1.86 lbs)

Operating Temperature: 5°C to 35°C (41°F to 95°F)

Operating Humidity: 80% RH maximum

Storage Temperature: -20°C to 40°C (-4°F to 104°F)

AC Adapter Specifications

Power Requirements: 110 to 240V AC, 50/60Hz

Rated Output: DVD Operation: 10V DC

Charging: 10V DC

Dimensions: 58 (W) × 105 (D) × 27.5 (H) mm

(219/64" × 49/64" × 13/32")

Weight (approx.): 170g (0.38 lbs)

Battery Pack Specifications

Model: BT-L200U

Type: Lithium-ion type

DC output: 7.4V

Capacity: 5600mAh

Operating temperature: 0°C to 40°C (32°F to 104°F) (charging: 10°C to 30°C (50°F to 86°F))

Max. Dimensions: 193 (W) × 144 (D) × 13.7 (H) mm

(739/64" × 543/64" × 35/64") without protruding parts

Weight (approx.): 430g (0.95 lbs)

Specifications are subject to change without notice. Weight and dimensions are approximate.

Digital Output (Linear PCM)

· The digital output format used in this DVD video player is linear PCM audio sampled at 44.1 kHz or 48 kHz. Linear PCM sound for DVD discs sampled at 96 kHz cannot be output digitally. Check the disc jacket for information on the audio sampling used.

3-1. ACCESSORIES

Accessories: Audio Cord x 1, S-Video/Video cord x 1, AC cord x 1, CR2025 type lithium battery x 1,

Remote Control Unit x 1, Lithium-ion Battery Pack x 1, AC Adapter x 1, Operation Manual x 1, Guarantee Card x 1

4. PART NAMES

DV-L80U

Cabinet A

Cabinet B

Cabinet D

5. DISASSEMBLY METHOD

5-1. DISASSEMBLY METHOD

1. Remove the four screws 1.

2. Slide the cabinet C to the arrow direction to remove.

3. Remove the connectors 2.

4. Remove the screws 3.

5. Open the cabinet D and then remove it.

Cabinet C

6. Remove the connectors 4 and 5 and 6.

7. Remove the two screws 7, and remove the LCD fixing angle.

8. Remove the LCD while removing the claw of the cabinet D.

9. Remove the one screw 7.

10. Remove the LCD PWB.

11. Remove the screw 8.

12. Remove the inverter unit.

13. Remove the nine screws 9.

14. Lift the cabinet A from the cabinet B, pull off the connector 0 and then remove the cabinet A.

LCD Fixing Angle

LCD PWB

Inverter Unit

Cabinet D

DV-L80U

15. Remove the six screws q.

16. Remove the angle, insulate sheet, operate PWB and button in that order.

17. Remove the one screw w.

18. Remove the damper ass'y.

19. Pull of the shaft.

20. Remove the disc cover e by pressing the open/close button.

21. Remove the spring.

22. Remove the mechanism by removing the connectors r, t and y.

23. Remove the screw u.

24. Remove the charge PWB i by removing the B to B connector.

25. Remove the connector PWB o.

26. Remove the connectors p.

27. Remove the main PWB a.

Angle

B to B

Shaft

Damper Ass'y

Button

Operate PWB

Insulate Sheet

DV-L80U

6. ADJUSTMENT METHOD

6-1. HARNESS LIST FOR SERVICE PARTS

Parts Code Price Code Remarks Parts Code Price Code Remarks QCNW-8145GEZZ AQ P.U. extension, 30-pin QCNW-8393GEZZ AH Main-LCD extension, 12-pin QCNW-8146GEZZ AQ Spindle extension, 13-pin QCNW-8151GEZZ AQ Inverter extension, 6-pin QCNW-8147GEZZ AN Sled extension, 2-pin QCNW-8152GEZZ AQ LCD panel extension, 32-pin QCNW-8395GEZZ AC Power supply extension, 9-pin QCNW-8399GEZZ AD Operation PWB extension, 6-pin QCNW-8394GEZZ AD Power supply extension, 20-pin QCNW-1766TAZZ BF Inverter junction PWB QCNW-8544GEZZ AG Main-LCD extension, 13-pin QPWBF5002GEZZ BF LCD junction PWB QCNW-8545GEZZ AG Main-LCD extension, 10-pin QPWBF5003GEZZ BF Pickup junction PWB

Drawing for service jigs

Inverter PWB

Inverter Junction PWB QCNW-1766TAZZ

Panel

LCD Junction PWB QPWBF5002GEZZ

Mechanism

Power Supply

CN903

PWB

CN902

Inverter QCNW-8151GEZZ

Pickup Junction PWB QPWBF5003GEZZ

CN1901

QCNW-8545GEZZ

Pickup QCNW-8145GEZZ

FFC

QCNW-8146GEZZ FFC Spindle

QCNW-8147GEZZ Sled

Lead Wire

QCNW-8394GEZZ 20-Pole

FFC

Power Supply, 9-Pole QCNW-8395GEZZ

F F C

CN1903

CN301

CN1902

CN1801

CN705

CN1904

CN1800

Main PWB

P706

CN1103

F F C

CN1900

CN1803

CN5001

LCD Junction QCNW-8152GEZZ

LCD PWB

QCNW-8393GEZZ

QCNW-8544GEZZ

Operation Cabinet

QCNW-8399GEZZ 6-Pole

DV-L80U

ADJUSTMENT PROCEDURE AND METHOD OF LCD PWB SIDE

Connect the LCD PWB to the jig for shipping adjustment.

Adjustment Item Adjustment Menu Adjustment Point Signal/Setting Adjustment Contents 1Free run FADJ Observe the 7PIN of No input Adjust so that the frequency becomes

adjustment TP1800 (HSY) with a 15.734±0.01kHz (63.556µS).

frequency counter.

HSY

15.734kHz

(63.556µS)

2Screen center R1914(VR) Visual observation of Monoscope full Adjust the screen so that it is located in the

adjustment the panel. screen. center.

CHECK ITEMS OF LCD PWB SIDE

Adjustment Item Adjustment Point Input Signal/Setting Adjustment Contents 1Free run check Check the panel visually by connecting External input Check that the horizontal movement of ODS

to the checker. is 1 mm or less when inputting a signal in

the external input mode with no signal input.

External

MAIN PWB SIDE ADJUSTING PROCEDURE AND METHOD.

Connect the MAIN PWB to the jig for shipping adjustment. Supply the power in the condition that the “UP” and “DOWN” keys are pressed at the same time and move to the special mode (SP MODE). After that, get the default set by pressing the “PLAY” key. After setting, turn off the power once. Supply the power again in the condition that the “UP” and “DOWN” keys are pressed at the same time and after moving to the special mode (SP MODE), get the adjustment mode by pressing “DVD/TV/EXTERNAL” key.

Each operation in the adjustment mode changes as follows: (1) Switch the adjustment block with the "VOLUME DOWN" key input.

DAC adjustment OPT adjustment

(2) Perform paging of each adjustment block with the "RETARN" key.

TV1

(3) Switch each adjustment item with the "VOLUME UP" key input.

TV1 adjustment

FADJ

TV2

SBRI GPOS CONT

TV3

TV2 adjustment

WB-R WB-B SCOL STIN

TV3 adjustment

COM OSDH BBRI GAIN

(4) Change each adjustment value with the left or right cursor key.

DV-L80U

Adjustment Item Adjustment Menu Adjustment Point Signal/Setting Adjustment Contents 1Sub-bright S brightness Check that the sub-bright is “56”.

check

2Common GPOS

amplitude adjustment

3RGB amplitude GAIN

adjustment

4Contrast CONT

adjustment

5White balance WB.R(Red)

adjustment (Red)

Connect the synchroscope to 1 pin (COM) of TP1800.

Connect the synchroscope to 2PIN (VG) of TP1800.

Connect the synchroscope to 2PIN (VG) and 3PIN (VR) of TP1800.

Black-and-white Adjust the common amplitude to 7.8V. 10STEP

7.8V±0.1

Black-and-white Adjust the Vpp(SYNC-SYNC) of VG to 4.0V. 10STEP

4.0±0.1V

Black-and-white Adjust the 100% white part(SYNC-white) to 10STEP 3.8V.

3.8V±0.1

Black-and-white Adjust the white balance (red) so that black level 10STEP the equal of green and red output become equal.

6White balance WB.R(Blue)

adjustment (Blue)

7Sub tint S color tone

adjustment

8Sub color S color density

adjustment

9Confrontation COM Specified adjustment jig No input state When using the specified adjustment jig

bias adjustment (illuminometer) or visual

Connect the synchroscope to 2PIN (VG) and 4PIN (VB) of TP1800.

Connect the synchroscope to 4PIN (VB) of TP1800.

observation Perform it in a and adjust the waveform to the minimum

Black-and-white Adjust the white balance (red) so that black level 10STEP the equal of green and blue output become

equal.

100% color bar Make the peak to peak of the blue, magenta

and cyan of the color bar signals stepwise. Place magenta between blue and cyan.

100% color bar Adjust the blue amplitude of the color bar

(black level to peak level) to 3.8±0.1Vpp.

Brightness: Center combination of point.

PWB and the At this time, perform the adjustment several liquid crystal times to fix the optimal point because the panel which will measuring value hardly changes around the be supplied as optimal point. products finally.

Connect the output of jig to the oscilloscope

(Type drawing)

Optimal point

Adjust within the above range to fix the optimal point

Adjustment Item Adjustment Menu Adjustment Point Signal/Setting Adjustment Contents

Direction of stripe

In case of visual adjustment Stand or tilt the panel as shown in the figure and check by shaking your head and seeing whether stripes appear. If the adjustment is improper, you will see stripes in the longitudinal direction. Perform the adjustment so that they do not appear.

[Another method] Flicker signal Externally input the signal shown left and generator adjust so that the cross bars become minimum “Example: by visually checking the screen. BP1018 made by JFC”

DV-L80U

0OSD position OSDH Visual observation Adjust the OSDH of TV3 to 15 mm from the

adjustment right of screen.

B brightness

qLighting control B brightness Check that the B brightness is “76”.

standard check

15mm

DV-L80U

BATTERY END VOLTAGE ADJUSTMENT

1. Initial setting (1) Power supply

Input 6.15V±0.05V to the DVD battery. Note1) Set the voltage on the DC input jack PWB of the main unit to the value specified above in the condition of

DVD start-up (LCD lit).

Note 2) Check the voltage with a calibrated measuring instrument. In case that drift is worried, check the voltage

periodically.

2. Battery end voltage adjusting procedure and method (1) Select the battery detection error compensation adjustment mode.

1 Turn on the main power switch on while pressing the “UP” “DOWN” keys of the main unit at the same time. 2 Press the mode selection key. 3 Press the sound volume down button twice to enter the battery adjusting screen. 4 With button changing button, make the cross key to the cursor mode. (With 70 type remote controller, the cursor

key can be used for operation as it is.)

(2) Adjust with the right and left key so that the “BAT” value displayed on the LCD becomes “0”.

No. Item Checked place Checking method Standard, condition Remarks

1 S image Y output S terminal 1. Play the test disc TDV - 581A.

2. Check the Y output with an 1Vp-p ± 0.15Vp-p S terminal Y output oscilloscope. Measure at 75Ω

termination.

2 S image C output S terminal 1. Play the test disc TDV - 581A.

2. Check the C output with an 0.286Vp-p ± 0.15Vp-p S terminal C output oscilloscope. Measure at 75Ω

termination.

3 Error rate check Display 1. Press the STOP key and the V-CD:TDV-581A When playing back.

PLAY key of the main unit key 20/4 at the same time and check the error rate displayed on the display.

DVD:TV-501 38/76

4 Flash memory Display 1. Press the return key and the Model name of the When NO DISC.

check VOL-UP key of the main unit software

key at the same time. Region code Transmit the numeric number Software Ver. key of R/C (1), next transmit play to check the model name and the region code, and transmit play again to check the software Ver.

Sound level check

Audio output L/R

Play the title 49, chapter 1AC - 320 mode of the test disc TV - 501 to check the sound output level.

1.35Vrms ± 0.3Vrms

6 Digital sound Digital sound Connect the digital surround The sound from the digital

output check output processor to the digital sound surround processor must

output and play the VCD to check be played properly. the sound output from the digital surround processor.

7 Distorted disc Played image Play the test disc TDV - 533 to It must be normally played.

playback check check the played image on the * No EJECT, rickety play

monitor screen. or staying in LOAD

condition are allowed.

No. Item Checked place Checking method Standard, condition Remarks

8 Battery display Main unit LCD 1. Supply 8V to the battery

check terminal. Get the DVD start-up

screen.

2. Change the battery voltage to (7) V. → Check the battery half

display.

3. Change the battery voltage to (6.5) V. → Check the battery alarm

display.

4. Change the battery voltage to (5.9) V. → Check the power is

turned off.

9 Charging action Main unit LED 1. Supply power from an

check AC adapter.

2. Connect (15)Ω supplied a 6.5V DC to the battery terminal. → Check the LED for

charging lights on.

10 RTR disc play Display 1. Press the STOP key and the RTR recorded disc

check PLAY key of the main unit key 50/100

at the same time and check the error rate displayed on the display.

DV-L80U

7. TEST MODE

Test Mode A power source is put, and a playback key and a stop key are pushed after the "NO DISC" display at the same

time. (It keeps pushing it for about three seconds.)

ROM Renewal Mode A power source is put with pushing a playback key and a halt key at the same time.

(It keeps pushing it for about three seconds.)

[TEST MODE]

Test mode initial image plane F0000000 00000000

The preparation date display of the program 10000000 ******** (Last updata)

The "PALY" key of the remote controller is pushed.

Model number display 10000001 00007604 (Model number)

The "PALY" key of the remote controller is pushed.

The version display of the program 10000002 ******** (Program ver.)

The "PALY" key of the remote controller is pushed. Reagion number display 10000003 00000008 (Region code:Binary display)

The "PALY" key of the remote controller is pushed. Micro-code number display 10000004 ******** (Microcode ver.)

The "PALY" key of the remote controller is pushed. The preparation date display of the servo program

10000005 ******** (Servo ver.)

The "PALY" key of the remote controller is pushed.

Servo DSP microcode version display 10000006 ********

The "PALY" key of the remote controller is pushed. It is returned to the test mode initial image plane.

Micro-code is the thing of the process program of the system integrated circuit.

Color bar display 20000001 00000000 (FIP)

Color bar display 20000002 00000000 (FIP)

Color bar display 20000003 00000000 (FIP)

To (1)

There is no copy guard signal. What is the symptom at the time of dubbing to VTR?

The "PALY" key of the remote controller is pushed.

AGC only What is the symptom at the time of dubbing to VTR?

The "PALY" key of the remote controller is pushed.

AGC+Color stripe1 What is the symptom at the time of dubbing to VTR?

The "PALY" key of the remote controller is pushed.

AGC+Color stripe2 What is the symptom at the time of dubbing to VTR?

The "PALY" key of the remote controller is pushed.

From (1)

<Disk is put, and the "2" key of the remote controller is pushed.> *It is usually returned in power source off for the state.

STEP TEST DD000200 00000000

DVD laser lights, the spindle motor rotates and the pickup moves to the outer periphery. 30000100 00000000

DVD laser off, CD laser on, spin kick, sled outer periphery feed ErrDisplay0 ErrDisplay1 30000100 00000000

Laser off, spin kick, sled outer periphery feed ErrDisplay0 ErrDisplay1 30000100 00000000

Focus on

The "PLAY" key input.

STEP TEST DD00E210 EEEEEEEE

DV-L80U

Note:Not to face the light of the laser squarely, caution!

When a disk is not in.

STEP TEST DD000201 00000000

STEP TEST DD000202 00000000

STEP TEST DD000203 00000000

STEP TEST DD000204 00000000

STEP TEST DD000210 00000000

(In case of DVD other

than DVD-RW) STEP TEST DD000211 00000000

Track on

The "PLAY" key input.

Focus balance adjustment (1)

The "PLAY" key input.

PF, Focus, track gain adjustment

The "PLAY" key input.

DVD: focus balance adjustment (2) CD: TOC reading

The "PLAY" key input.

Control data read

(In case of DVD-RW) STEP TEST D9000211 00000000

(In case of CD) STEP TEST END CD000210 ********

(******** is sub-Q.)

Follow-up play condition

The "PLAY" key input.

Follow-up play condition

To (2)

STEP TEST END DD000212 ********

(******** is the sector ID.) (******** is the sector ID.)

Focus balance of the layer 1, follow-up play condition after focus gain adjustment

STEP TEST END D9000212 ********

Follow-up play condition

DV-L80U

Personal computer

(DOS)

DVD itself

Connect to the video input terminal. Connect the “red” audio cable to jig.

Fixture for the ROM renewal

[OFFSET ADJUSTMENT PROCEDURE]

Notes: 1) When replacing the IC401 (IX1690GE) and IC507 (SNT1G08C), readjustment is required.

2) Adjustment must be made at an ordinary temperature. If temperature is high immediately after reflow or if IC temperature has risen immediately after continuous operation, adjustment must not be made.

(Adjustment spec) -30mV - +10mV (Inspection specification) -30mV - +20mV

(Adding temperature drift after adjustment)

From (2)

OSD display

F00000000 00000000

DYNAMIC TEST 30000000 00000000

FOCUS 000000** 000000**

FOCUS 000000** 000000++

The ++ part is changed every time of the key input.

TRACK 000000** 000000++

The ++ part is changed every time of the key input.

ADJUST COMPLETE 00**00** 00000000

The investigated result is displayed in the ++ part. The displayed contents are from the left "Focus offset adjustment value", "Track offset adjustment value".

"F0" key input (Keep pressing the "Return" and "Vol_up" keys for about 3 second.)

The "1" key input.

The "MENU" key input.

FOCUS offset adjustment mode

Connect the L side of the voltmeter to CN302 (2 pin) and the H side to CN302 (4 pin). With the cross key "'" or """ set the output voltage to the range from -30mV to +10mV.

The "RETURN" key input.

TRACK, offset adjustment mode

Connect the L side of the voltmeter to CN302 (3 pin) and the H side to CN302 (1 pin). With the cross key "'" or """ set the output voltage to the range from -30mV to +10mV.

Make sure that the spindle motor stops.

Press the "RETURN" key.

End of adjustment

[ROM RENEWAL MODE]

1. Connect the DVD main unit and the computer as shown on the right. And then start-up the software for rewriting.

2. Turn on the power while the play key and the pause key of the DVD main unit are kept pressed at the same time. (Keep pressing about 3 second.)

The red LED flickers 5 - 6 times with the 0.5 second cycle and then the green LED flickers with 0.1 second cycle.

3. According to the computer display, data transfer prompt is issued by inputting “Y” and pressing ENTER key, and when the rewriting starts normally,

The LED in green lights on from flickering.

4. When the rewriting is completed normally,

The green LED lights on.

5. After completing the rewriting and checking the display of No. 4 shown above, always press the “STOP” key. After that turn off the POWER.

6. Treatment in case of rewriting error

1 The red LED flickers with 0.1 second cycle (When the stop key is pressed it 2 The red/green LED flickers by turns (When the stop key is pressed it becomes

return to the condition of “2” so write again.) the condition of “5” so write again from “1”.)

DV-L80U

Check AC adapter or CAR adapter or battery-pack.

Voltage on DC JACK (Approx. 10.5V) or CAR

JACK (Approx. 9V) or battery terminal (8.4 - 6V)?

Yes

The power cannot be turned on.(1)

•When using the AC adapter ------check circuit

around F9801, Q904, Q905, connector, lead wire.

•When using battery------check circuit around

F901, Q906, Q913, connector, lead wire.

Voltage specified above (Approx.6 - 11V) on

TP9002, TP9003 in the MAIN?

Yes

Voltage of approx. 6 - 11V supplied on 5 pin of

IC5503?

Voltage of approx. 5V supplied on 72 pin of

IC5502 (TV microcomputer)?

Yes

29 pin of IC5502 still “L”?

Oscillation signal of 32kHz checked on 23, 24 pins

of IC5502?

Yes

Check the IC5502 and X5502.

Check the Q5514 and Q5511.

Yes

Circuit protector CP9001 is actuated (disconnection)

replace. Check CLD inverter circuit and INV-V line.

Refer to “The key operation is disabled.” or

“No operation is possible from the infrared remote

control.”.

Approx. 5V outputted to 45 pin of IC5502?

Yes

Check PCON-H line between IC5502 - IC9001.

Approx. 4.5 V supplied to 20 - 22 pins of IC9001?

Yes

Appropriate voltage outputted on each B line

(TP9005 - 9012)?

Yes

Triangle oscillation of approx. 0.6V p-p checked on

17 pin of IC9001?

Circuit protector CP9002, CP9003 cut?

Yes

Check short circuit of each SWITCHING TR and

each B line.

* All the B lines cannot be outputted for short

circuit of even 1postion (1 line).

Replace IC5503.

Replace IC9001.

FLOW CHART NO.1

Attach junction line properly or replace junction line.

Wire between operation PWB and MAIN PWB

connected properly?

Yes

The key operation is disabled.

Power button does not function.

When power button is pressed, 5 pin of IC5502 is

"L"?

Yes

Is the control voltage normally into the pins(78)

and (80) of IC5502? (78pin→KEY)

Replace operation pwb.

Yes

Replace operation pwb.

Replace IC5502.

FLOW CHART NO.2

Check TVMI_5V line.

Replace the remote control receiver.

FLOW CHART NO.3

Operation is possible from the body, but no

operation is possible from the infrared remote

control.

Replace the remote control receiver or replace the

remote control transmitter is necessary.

Is 5V voltage supplied to the pin 2 terminal of

remote control receiver?

Is the "L" pulse sent out pin 3 terminal of receiver

when the infrared remote control is activated?

(Actuated with power button)

DVD cannot be operated but TV can be operated.

(DVD is actuated with play, stop button.)

To 2

1“L” pulse signal is generated from 79 pin of

IC5502?

(Actuated with power button)

Yes

To 1

Replace IC5502.

Yes

Check line of 2 pin of IC3001.

2“L” pulse signal is generated from 32 pin of

IC502?

(DVD is actuated with play, stop button.)

Replace IC502.

Yes

Check D506 line.

Yes

No operation is possible from the infrared remote control.

3.0V

3.7V

2.3V

1.6V

0.9V

Volume large Volume small

TV/External/DVD button

change over

SKIP(+)/RIGHT→SKIP(-)/LEFT

UP↑/STILL DOWN↓/STOP

Play setting Determination/Play

RETURN

8. TR OUBLESHOO TING

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