Sharp DV-L80S, DV-L80W Service manual

SERVICE MANUAL

DV-L80S/W

SERVICE MANUAL

SX0K9DV-L80S/

PORTABLE DVD VIDEO PLAYER

PORTABLE DVD VIDEO PLAYER

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

2. FEATURES ........................................................................................................................................ 4

3. SPECIFICATIONS ............................................................................................................................. 4

4. PART NAMES.................................................................................................................................... 6

MODELS DV-L80S/W

5. DISASSEMBLY METHOD ................................................................................................................. 7

6. ADJUSTMENT METHOD................................................................................................................... 9

7. TEST MODE .................................................................................................................................... 15

8. TROUBLESHOOTING ..................................................................................................................... 18

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

MODELS

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-L80S/W

Page

SHARP CORPORATION

1

DV-L80S/W

1. IMPORTANT SAFEGUARDS AND PRECAUTIONS

2

DV-L80S/W

åå

åCAUTION

åå

BEFORE BATTERY DESTROY

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.

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.

3

DV-L80S/W

2. FEATURES

This Player can play back DVD video disc, DVD-RW(DV-L80S), 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.) (DV-L80S)

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 (optional
accessory) for outdoor play.

Compact, Lightweight Design

• Your 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, *3DTS digital audio and MPEG audio. Connecting a Dolby Digital/DTS/MPEG Audio 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 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 Player.)

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

• Your Player is equipped with Dolby Digital (5.1ch)/Dolby Surround (Pro Logic)/MPEG Audio decoder as standard.
Connecting an amplifier with 5.1ch input jacks to the Player provides richer, more powerful 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
Models: DV-L80S/W

Signal System: NTSC/PAL

Supported Disc Types: DV-L80S: DVD (Region Number 2, ALL), DVD-RW (Video recording

format), VIDEO CD, Audio CD

DV-L80W: DVD(Southeast Asia: Region Number 3, ALL/Australia and

New Zealand: Region Number 4, ALL), 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 (H) × 176.4 (W) mm)

Type: Transmissive TN liquid crystal panel
Drive: TFT (thin transistor) active matrix

4

Pixels: 336,960 (234 (H) × 480 (W) × 3)
Effective Pixel Rate: 99.99% minimum

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

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)
(MPEG Audio Version 2.0)
S/N Ratio: CD: 115dB 1kHz (EIAJ)
Dynamic Range: Linear PCM DVD: 103dB (EIAJ)

CD: 103dB (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)

Main Power Off: 0.2W (without AC Adapter)
Standby mode: 2.0W (with AC Adapter)

Dimensions: 211 (W) × 157 (D) × 24.7 (H) mm

(except for projections)

Weight (approx.): 840g

Operating Temperature: 5°C to 35°C

Operating Humidity: 80% RH maximum

Storage Temperature: -20°C to 40°C

DV-L80S/W

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

Weight (approx.): 170g

Battery Pack Specifications (Optional Accessory)

Model: BT-L200S

Type: Lithium-ion type

DC output: 7.4V

Capacity: 5600mAh

Operating temperature: 0°C to 40°C (charging: 10°C to 30°C)

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

without protruding parts

Weight (approx.): 430g

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

Digital Output (Linear PCM)

· The digital output format used in this 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 3 (DV-L80S/WX), Audio Cord x 1 (DV-L80W/WA),

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, Earphones x 1, Quick Start Guide x 1(DV-L80S)

5

DV-L80S/W

4. PART NAMES

6

5. DISASSEMBLY METHOD

9

10

Cabinet A

Cabinet B

Cabinet D

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

DV-L80S/W

1

3

2

3

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.

4

5

7

LCD Fixing
Angle

LCD PWB

Inverter Unit

8

Cabinet D

6

7

DV-L80S/W

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

18

13

14

Shaft

Damper Ass'y

12

Button

Operate PWB

Insulate Sheet

11

16

15

17

20

20

15

19

14

21

8

DV-L80S/W

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

MA

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

CN1902

10

CN1903

CN301

13

CN1801

10

CN705

CN1904

12

13

CN1800

Main PWB

P706

CN1103

F
F
C

CN1900

CN1803

12

CN5001

LCD Junction
QCNW-8152GEZZ

LCD PWB

QCNW-8393GEZZ

QCNW-8544GEZZ

Operation Cabinet

QCNW-8399GEZZ 6-Pole

9

DV-L80S/W

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.

10

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

check

DV-L80S/W

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) of TP1800.

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

Black-and-white Adjust the common amplitude to 8.0V.
10STEP

8.0V±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.

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 Adjust so that the cross bars of the color signal

may become the minimum with seeing LCD
screen.
[Another method]
Adjust so that every horizontal term space my
become the level which the blue amplitude level
of the color bar signal is the same as.

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

(black level to peak level) to 3.4±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

11

Adjust within the above
range to fix the optimal point

DV-L80S/W

Direction of stripe

Adjustment Item Adjustment Menu Adjustment Point Signal/Setting Adjustment Contents

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”

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

12

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.

5

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

DV-L80S/W

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.

13

DV-L80S/W

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.

14

DV-L80S/W

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 "1" key of the remote controller is pushed.>

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.

<The "2" key of the remote controller is pushed.>

Color bar display
20000001 00000000 (FIP)

Color bar display
20000002 00000000 (FIP)

Color bar display
20000003 00000000 (FIP)

Color bar display
20000003 00000000 (FIP)

<The "3" key of the remote controller is pushed.>

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.

15

DV-L80S/W

From (1)

<The "1" key of the remote controller is pushed.>

<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.

<The "1" key of the remote controller is pushed.>

<The "1" key of the remote controller is pushed.>

<The "1" key of the remote controller is pushed.>

STEP TEST
DD00E210 EEEEEEEE

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

16

[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)

DV-L80S/W

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,

Personal computer

The LED in green lights on from flickering.

(DOS)

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.

Fixture for the ROM renewal

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

DVD itself

6. Treatment in case of rewriting error

1 The red LED flickers with 0.1 second cycle (When the stop key is pressed it

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

2 The red/green LED flickers by turns (When the stop key is pressed it becomes

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

17

DV-L80S/W

Check AC adapter or CAR adapter or battery-pack.

No

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.

No

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

TP9002, TP9003 in the MAIN?

Yes

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

IC5503?

No

Voltage of approx. 5V supplied on 72 pin of

IC5502 (TV microcomputer)?

Yes

Yes

29 pin of IC5502 still “L”?

No

Oscillation signal of 32kHz checked on 23, 24 pins

of IC5502?

Yes

Check the IC5502 and X5502.

Check the Q5514 and Q5511.

No

No

No

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.”.

No

Approx. 5V outputted to 45 pin of IC5502?

No

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)?

No

No

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.

No

Wire between operation PWB and MAIN PWB

connected properly?

Yes

Yes

The key operation is disabled.

No

Power button does not function.

No

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.

No

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)

No

No

No

Yes

No

To 1

Replace IC5502.

No

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.

No

Yes

Check D506 line.

Yes

Yes

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

18

DV-L80S/W

FLOW CHART NO.4

Is the tray lid open?

When S802 is pressed, are the pins 3 and 4

short-circuited?

Check the connection between pins 2 or 4 of S802

and pins 27 of IC502.

Does the pickup move in the direction of inner

periphery?

No

No

No

No

Check the cable connecting to the P706.

(Check the P706 and line of pins 2 and 4 of IC705.)

Check the cable connecting to the CN705.

Replace the S802.

Yes

No

Yes

After moving in the direction of inner periphery,

does the pickup move in the direction of outer

periphery?

Yes

Check the M_4.8V line.

Is 4.8V being applied to the pins 16 and 17 of

IC702?

Yes

Replace the IC702.

Yes

The disc does not rotate.

No

Is FE signal inputted into the pin 8 of IC401.

Check or replace IC401.

Check the line between the IC301 and IC401.

FLOW CHART NO.5

When removing disc and applying load to spin

motor (by stopping with hand, etc.), objective lends

moves up and down? (Checking item to symptom)

Note) If load is not applied to spin, lens does not

move and becomes NO DISC immediately.

See FLOW CHART NO.6<The [No Disc] indication.

(In case focus servo does not function.)>

Replace IC301.

Is there input signal on the pins(50,55) and (49,54)

of IC301?

Is FE signal output to the pin 21 of IC301 when

the disc is set?

No

No

Check the connection of optical pickup cable.

If it is normal, replace the optical pickup.

Yes

No

Yes

Yes

Yes

The [No Disc] indication. (In case of focus error)

In case of CD For DVD, 58, 59, 63, and 64

FLOW CHART NO.6

Is the focus control signal output to the pin 14 of

IC401?

Check the IC401 DAC power source periphery

circuit. If it is normal, replace IC401.

Check M_5V line.

Is 8V voltage applied to the pins 8 and 27 and

25 and 24 of IC705?

Replace IC705.

Is the focus control signal from the pin 14 of IC401

input into the pin 20 of IC705?

Check the focus control signal (DA0) line between

the IC705 and IC401.

Is the focus control drive voltage output from the

pins 29 and 30 of IC705?

No

No

No

Yes

Yes

Yes

No

Yes

The [No Disc] indication. (In case focus servo does not function.)

Check the line between the IC705 and the focus

actuator.

Focus control drive voltage applied to 27, 29 pin

of CN301 (focus actuator terminal)?

Check the connection of optical pickup cable.

If it is normal, replace the optical pickup.

FLOW CHART NO.7

Check the D_3.1V line and A_5V line.

Is the drive signal (SEL) of Q301 (LD POWER

ON) being output to the pin 150 of IC401?

Is the drive signal (LDO1) of Q302 (LD POWER

CTL) being output to the pin 45 of IC301?

When S801 is pressed, is the base of Q303 0.8V?

Is the voltage of 3.3V being applied to the emitter

of Q301? And, is the voltage of 3.4V being applied

to the emitter of Q302?

Is the voltage of 3.1V and 2.3V being applied to

the pins 14 and 23 of CN301, respectively?

Check the connection of optical pickup cable.

If it is normal, replace the pickup.

Check the Q301 and line between Q302 and

CN301.

Check the line from the pin 150 of IC401, through

Q305, to the base of Q301.

Check the line between the pin 45 of IC301 and

base of Q302.

Check the line between S801 and R309.

No

No

No

No

No

No

Yes

Yes

Yes

Yes

The DVD disc is not recognized.

(When the laser beam does not go on)

FLOW CHART NO.8

Check the A_5V line.

Is the drive signal (LDO2) of Q304 (LD POWER

CTL) being output to the pin 4 of IC301?

When S801 is pressed, is the base of Q303 0.8V?

Is the voltage of 3.4V being applied to the emitter

of Q304?

Is the voltage of 2.3V being applied to the pin 9

of CN301?

Check the connection of optical pickup cable.

If it is normal, replace the pickup

Check the line between Q304 and CN301.

Check the line between the pin 4 of IC301 and

base of Q304.

Check the line between S801 and R309.

No

No

No

No

Yes

Yes

Yes

The CD disc is not recognized.

(When the laser beam does not go on)

FLOW CHART NO.9

Check tray switch. S801, 802

No

Check for contamination of objective lens of

optical pickup.

Replace the optical pickup unit.

When cover is closed, disc starts rotating?

Check the main PWB unit.

Set disc to mechanism.

Replace the main PWB unit.

Is the level of RF signal which is output from

pin 28 of IC301, normal?

No

No

No

Yes

Yes

Yes

Yes

Both picture and sound do not operate normally.(1)

19