Sharp CDE-750-DV Service manual

CD-E750DV

SERVICE MANUAL

No.

DVD MINI SYSTEM

MODEL CD-E750DV

CD-E750DV DVD Mini System consisting of CD-E750DV (main unit), CP-E750DV (front speaker), and GBOXS0133AWM1 (surround speaker).

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

NTSC/PAL

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

VOLTAGE SELECTION ..................................................................................................................................................... 2

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 2

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

DISASSEMBLY .................................................................................................................................................................. 6

REMOVING AND REINSTALLING THE MAIN PARTS ...................................................................................................... 9

ADJUSTMENT ..................................................................................................................................................................10

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 15

TYPES OF TRANSISTOR AND LED ............................................................................................................................... 15

BLOCK DIAGRAM ........................................................................................................................................................... 16

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 20

VOLTAGE ........................................................................................................................................................................ 47

WAVEFORMS OF DVD CIRCUIT ................................................................................................................................... 49

TROUBLESHOOTING ......................................................................................................................................................50

FUNCTION TABLE OF IC.................................................................................................................................................53

FL DISPLAY ...................................................................................................................................................................... 68

REPLACEMENT PARTS LIST/EXPLODED VIEW

A4 (pg 01-8) 7/9/03, 2:26 PM1

SHARP CORPORATION

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

CD-E750DV

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITHOUT A COMPACT DISC IN POSITION AND THE

PICKUP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT LOOK INTO THE PICKUP LENS.

2-THE LASER POWER OUTPUT OF THE PICKUP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY

PRESET BEFORE SHIPMENT.

DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING. 3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME. 4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

Laser Diode Properties Material: GaAIAs Wavelength: 785 nm/650 nm Emission Duration: continuous Laser Output: max. 0.69 mW

VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows. Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCE0015AW00

QPLGA0004AWZZ

A4 (pg 01-8) 7/9/03, 2:26 PM2

– 2 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS

CD-E750DV

General

Power source AC 110/127/220/230 - 240 V, 50/60 Hz

Power consumption 130 W

Dimensions Width: 270 mm (10-5/8")

Weight 8.4 kg (18.5 lbs)

Amplifier

Output power

Output terminals Front speakers: 8 ohms

Input terminals Video/auxiliary (Audio input): 500 mV/47

DVD/VCD/CD player

Signal system NTSC/PAL

Supported disc types DVD(Region number 3, ALL), audio CD,

Video output Output jack: Pin jack × 1

S-video output Y output level: 1 Vp-p (75 ohms)

Video signal Horizontal resolution: 500 lines

Audio signals Frequency characteristics:

Height: 330 mm (13") Depth: 355 mm (13-15/16")

Front speakers: MPO: 360 W (180 W + 180 W) (10 % T.H.D.)

RMS: 170 W (85 W + 85 W) (10 % T.H.D.)

RMS: 140 W (70 W + 70 W) (0.9 % T.H.D.)

Rear speakers: MPO: 180 W (90 W + 90 W) (10 % T.H.D.)

RMS: 80 W (40 W + 40 W) (10 % T.H.D.)

RMS: 70 W (35 W + 35 W) (0.9 % T.H.D.)

Rear speakers: 16 ohms Headphones: 16 - 50 ohms (recommended; 32 ohms)

Audio digital out: Optical

kohms

Microphone 1/2: 1 mV/600 ohms

CD-R, CD-RW, VCD,MP3

Output level: 1 Vp-p (75 ohms)

C output level: 0.286 Vp-p (75 ohms) Output jack: S-video connector × 1

S/N ratio: 60 dB

Linear PCM DVD:

4 Hz to 22 kHz (48 kHz sampling)/

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

96 dB (CD)

Total harmonic distortion ratio:

0.006 % maximum

Tuner

Frequency range FM: 88 - 108 MHz

AM: 531 - 1,602 kHz

Cassette deck

Frequency response

Signal/noise ratio 55 dB (TAPE 1, playback)

Wow and flutter 0.3 % (WRMS)

CP-E750DV

50 - 14,000 Hz (normal tape)

50 dB (TAPE 2, recording/playback)

Front speaker

Type

Maximum input power

Rated input power 85 W Impedance 8 ohms Dimensions Width: 242 mm (9-9/16")

Weight 5.0 kg (11.0 lbs)/each

Twin-Drive speaker system, 50 mm(2") tweeter and 130 mm(5-1/8") woofer x 2

170 W

Height: 330 mm (13") Depth: 280 mm (11")

Surround speaker(GBOXS0133AWM1)

Type

Maximum input power

Rated input power 40 W Impedance 16 ohms Dimensions Width: 210 mm (8-1/4")

Weight 0.7 kg (1.5 lbs)/each

Full range, 100 mm(4")

80 W

Height: 130 mm (5-1/8") Depth: 154 mm (6-1/16")

CD-E750DV

A4 (pg 01-8) 7/9/03, 2:26 PM3

Specifications for this model are subject to change without prior notice.

– 3 –

CD-E750DV

Front panel

NAMES OF PARTS

1. Disc Tray

2. Timer Set Indicator

3. Echo Up Button

4. Echo Down Button

5. Karaoke Button

6. Memory/Set Button

7. On/Stand-by Button

8. Clock Button

9. Timer/Sleep Button

10. Tuning and Time Up Button

11. Tuning and Time Down Button

12. Headphone Socket

13. Tape 2 Record Pause Button

14. Tape 1 Cassette Compartment

15. Equaliser Mode Select Button

16. Extra Bass/Demo Mode Button

17. Volume Control

18. Disc Tray Open/Close Button

19. Disc Skip Button

20. Tape 2 Cassette Compartment

21. Microphone Level Control

22. Microphone Socket 1

23. Microphone Socket 2

24. DVD/Video CD/CD/MP3 Disc Button

25. Tape (1 2) Button

26. DVD/Video CD/CD/MP3 Disc/Tape Stop Button

27. Tape 2 Reverse Play Button

28. DVD Chapter Skip or Previous, DVD/Video CD/CD/MP3 Track Down or Fast Reverse, Tape 2 Fast Wind, Tuner Preset Down Button

29. Tape 2 Reverse Mode Select Button

30. Tuner Band Button

31. Video/Auxiliary Button

32. DVD/Video CD/CD/MP3 Play, Tape 1 Play, Tape 2 Forward Play Button

33. DVD Chapter Skip or Next, DVD/Video CD/CD/MP3 Track Up or Fast Forward, Tape 2 Fast Wind, Tuner Preset Up Button

1 2 3

4 5 6 7 8

9 10 11

12 13

21 22 23

24 25

26 27

28 29

18 19

30 31

32 33

Display

1. Disc Pause Indicator

2. Extra Bass Indicator

3. MP3 Disc Indicator

4. Disc Number Indicators

5. Tape 2 Record Indicator

6. FM Stereo Mode Indicator

7. FM Stereo Receiving Indicator

8. Timer Play Indicator

9. Sleep Indicator

10. Timer Recording Indicator

11. Disc Play Indicator

12. Disc Repeat Play Indicator

13. Karaoke Mode Indicator

14. Tape Reverse Mode Indicator

15. Tape 2 Reverse Play Indicator

16. Tape 1 Play or Tape 2 Forward Play Indicator

17. Memory Indicator

Rear panel

1. Audio Digital Output

2. Video Output Socket

3. S-Video Output Socket

4. Cooling Fan

5. AC Voltage Selector

6. AC Power Lead

7. Surround Speaker Terminals

8. FM 75 Ohms Aerial Terminal

9. FM Aerial Earth Terminal

10. AM Loop Aerial Socket

11. Span Selector Switch

12. Video/Auxiliary (Audio Signal) Input Sockets

13. Front Speaker Terminal

Note:

This product is equipped with a cooling fan inside, which begins to run at a specified volume level for better heat radiation.

11 12

2456781031 9

1 2 3

4 5

15 16 17

FRONT SPEAKERS

13 14

8 9 10

11 12

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CD-E750DV

Remote control

1. Remote Control Transmitter

2. On/Stand-by Button

3. Direct Buttons

4. DVD Top Menu Button

5. Enter Button

6. Menu Select or Tuner Preset Buttons

7. DVD/Video CD/CD/MP3 Repeat Button

8. Tape 2 Reverse Play Button

9. DVD/Video CD/CD/MP3/Tape Stop Button

10. Tape 2 Record Pause Button

11. DVD Chapter Skip or DVD/Video CD/CD/Tape Fast Reverse Button

12. DVD Subtitle Button

13. DVD/Video CD/CD/MP3 Button

14. Tuner (Band) Button

15. Shift Button

16. Surround Button

17. Disc Number Select Buttons

18. DVD/Video CD/CD Memory Button

19. DVD Menu Button

20. Menu Select Buttons

21. Return Button

22. DVD/Video CD/CD/MP3/Tape Play Button

23. DVD/Video CD/CD/MP3 Pause Button

24. DVD Chapter Skip or DVD/Video CD/CD/Tape Fast Forward Button

25. DVD/Video CD Slow Button

26. DVD Angle Button

27. DVD Zoom Button

28. Video/Auxiliary Button

29. Tape (1 2) Button

30. Extra Bass Button

31. Equalizer Mode Select Button

32. Volume Up or Down Buttons

Buttons with “” mark in the illustration can be operated with the remote control only. Other buttons can be operated on the main unit and the remote control.

6 7

9 10 11

12 13 14 15 16

CP-E750DV

19 20 21 22 23 24 25 26 27

28 29 30 31

Remote control with shift button

3 4

1. DVD Setup Button

2. Karaoke/Audio Mode Button

3. DVD/Video CD/CD A-B Repeat Button

4. Tape 2 Reverse Mode Select Button

5. DVD Digital Gamma Button

6. DVD/Video CD/CD Display Button

7. DVD/Video CD/CD Clear Button

8. PAL/NTSC Button

9. DVD Direct Button

10. Video CD/CD Random Button

11. Echo Level Up/Down Button

12. DVD Digital Super Picture Button

Front Speakers

1. Tweeter

2. Bass Reflex Duct

3. Woofer

4. Speaker Wire

Note:

The speaker grilles are not removable.

GBOXS0133AWM1

Surrounds Speakers

1. Full-Range Speaker

2. Speaker Wire

Note:

When the surround speakers are hung on the wall, the speaker badge will be turned. In this case, you can adjust the badge to face the proper direction by turning it by hand.

Badge

Note:

The speaker grilles are not removable.

A4 (pg 01-8) 7/9/03, 2:26 PM5

– 5 –

CD-E750DV

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:

1. Take cassette tape and compact disc out of the unit.

2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.

4. Take sufficient care on static electricity of integrated circuits and other circuits when servicing.

CD-E750DV

(A1)x2 ø3x12mm

Side Panel (Right)

(B1)x2 ø3x10mm

Top Cabinet

Front

Panel

(A1)x2 ø3x12mm

Side Panel (Left)

CD-E750DV

STEP

REMOVAL

1 Top Cabinet 1. Screw ...................... (A1) x4 6-1

2 Side Panel 1. Screw ...................... (B1) x8 6-1

(Left/Right)

3 DVD Player 1.

Unit/DVD Tray the disc tray, take out the Cover CD tray cover, and close.

(Note 1)

2. Screw ...................... (C1) x1

3. Hook ........................ (C2) x3

4. Hook ........................ (C3) x2

5. Socket ..................... (C4) x4

4 DVS PWB 1. Screw ...................... (D1) x3 7-1

2. Socket ..................... (D2) x1 7-1

5 SURROUND 1. Screw ...................... (E1) x2 7-1

PWB 2. Socket ..................... (E2) x1 7-1

6 Rear Panel with 1. Screw .......................(F1) x9 6-2

Fan Motor 2. Socket ...................... (F2) x1 7-2

7 Main PWB 1. Screw ...................... (G1) x4 7-2

2. Socket ..................... (G2) x4 7-2, 7-3

3. Flat Cable ............... (G3) x1 7-2

4. Flat Wire .................. (G4) x1

8 Front Panel 1. Screw ...................... (H1) x1 7-2

2. Hook ........................ (H2) x2

3. Flat Wire .................. (H3) x1

9 Mic PWB 1. Screw ....................... (J1) x2 7-3

2. Tip Wire .................... (J2) x1

Headphones PWB

1. Screw ...................... (K1) x1 7-3

11 Display PWB 1. Knob ......................... (L1) x1 7-4

2. Screw ..................... (L2) x10

3. Flat Cable ................ (L3) x1

12 Tape Mechanism 1. Open the cassette holder. 7-4

2. Screw...................... (M1) x5

13 Turntable 1. Hook ........................ (N1) x2 7-5

2. Stabilizer Holder ..... (N2) x1

14 Loading Tray 1.

2. Push the loading tray 7-6

15 DVD Servo 1. Screw ...................... (Q1) x2 8-1

PWB (Note 2) 2. Flat Cable ............... (Q2) x1

16 DVD Mechanism 1. Hook........................ (R1) x2 8-2

2. Hook ........................ (R2) x2

17 Joint PWB 1. Screw ...................... (S1) x2 8-3

2. Hook ........................ (S2) x3

3. Socket ..................... (S3) x2

18 DVD Loading 1. Hook ......................... (T1) x6 8-4

Motor PWB

PROCEDURE

Turn on the power supply, open

Turn fully the lock lever in the

arrow direction.

backward to engage the claw with the groove and remove it in the direction of the arrow. (P1) x6

FIGURE

6-2

6-3

(B1)x4 ø3x10mm

Rear Panel

(B1)x2 ø3x10mm

Figure 6-1

(G1)x1 ø3x10mm

DVD Tray Cover

Lug Wire

(G1)x1 ø3x10mm

(F1)x1 ø3x10mm

(C2)x3

DVD Playe Unit

(C3)x1

Main PWB

(C3)x1

Pull

Rear Panel

(C1)x1

ø3x10mm

(F1)x8 ø3x10mm

DVD

SERVO PWB

(C4)x4

Fan Motor

Figure 6-2

Lock Lever

DVD Player Unit (Bottom View)

Figure 6-3

Note 1: How to open the changer manually. (Fig. 6-3)

1. In this state, turn fully the lock lever in the arrow direction through the hole on the loading tray bottom.

2. After that, push forward the Loading tray.

Note 2:

1. After removing the connector for the optical pickup from the

connector, wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage.

Note 3:

1. Be careful not to break the claw of the DVD mechanism.

2. When fining back the cam gear assembly, let it lock by front

movement.

A4 (pg 01-8) 7/9/03, 2:26 PM6

– 6 –

(D1)x3

(P1)x3

Loading Tray

ø3x10mm

S Video PWB

Rear Panel

(D2)x1

Main PWB

Display PWB

(L2)x10 ø3x10mm

Tape Mechanism

Lug Wire

CD-E750DV

(L3)x1

Front Panel

(L1)x1

Open

(E1)x2 ø3x10mm

(H2)x1

Power PWB

Transformer PWB

(G1)x2

ø3x10mm

(H3)x1

(G2)x1

(F2)x1

Figure 7-1

(G3)x1

Main PWB

(G2)x1

(H1)x1

ø3x10mm

(E2)x1

Surround PWB

Front Panel

(G4)x1

Headphones PWB

(H2)x1

(M1)x5 ø3x10mm

Cassette Holder

Lug Wire

Figure 7-4

(N2)x1

Turntable

Loading Tray

(N1)x2

Figure 7-2

(G2)x1

DVD Player Unit

Figure 7-5

Front Panel

Display PWB

(J2)x1

Tape Mechanism

(J1)x2

ø3x10mm

(G2)x1

(K1)x1

Figure 7-3

Mic PWB

Headphones PWB

Figure 7-6

– 7 –

A4 (pg 01-8) 7/9/03, 2:26 PM7

CD-E750DV

(T1) x 6

DVD Loading Motor PWB

1 Woofer 1. Front Panel ............. (A1) x1 8-5

2. Screw ...................... (A2) x8 8-6

2 Tweeter 1. Screw ...................... (B1) x2 8-6

STEP

REMOVAL

PROCEDURE

FIGURE

CP-E750DV

DVD Servo

PWB

(Q2) x 1

Figure 8-4

(Q1) x 2

ø3 x 8mm

Figure 8-1

(R1) x 1

(S1) x 2 ø3 x 8mm

Joint PWB

DVD Mechanism

(S2) x 3

Figure 8-2

(R1) x 1

Slide Chassis

(R2) x 2

Loading Tray

Driver should be pried away from Speaker Box.

Woofer

(A1)x1

Speaker Box

Figure 8-5

(S3) x 2

Figure 8-3

A4 (pg 01-8) 7/9/03, 2:26 PM8

– 8 –

(A2)x4 ø4x12mm

(B1)x2 ø3x10mm

(A2)x4 ø4x12mm

Tweeter

Woofer

Speaker Box

Figure 8-6

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 6 and 10 of the disassembly method to remove the tape mechanism.

How to remove the record/playback and erase heads (TAPE 2) (See Fig. 10-1)

1. When you remove the screws (A1) x 2 pcs., the recording/ playback head and three-dimensional head of the erasing head can be removed.

How to remove the playback head (TAPE 1) (See Fig. 10-2)

1. When you remove the screws (B1) x 2 pcs., the playback head can be removed.

How to remove the pinch roller (TAPE 1/2) (See Fig. 10-3)

1. Carefully bend the pinch roller pawl in the direction of the arrow <A>, and remove the pinch roller (C1) x 1 pc., in the direction of the arrow <B>.

Note:

When installing the pinch roller, pay attention to the spring mounting position.

Erase Head

(A1)x2 Ø2x6mm

Figure 10-1

TAPE 1

TAPE 2

Clutch Ass'y

Record/Playback Head

Clutch Ass'y

Playback Head

CD-E750DV

How to remove the belt (TAPE 2) (See Fig. 10-4)

1. Remove the main belt (D1) x 1 pc., from the tape motor side.

2. Remove the FF/REW belt (D2) x 1 pc.

How to remove the belt (TAPE 1) (See Fig. 10-4)

1. Remove the main belt (E1) x 1 pc., from the tape motor side.

2. Remove the FF/REW belt (E2) x 1 pc.

How to remove the motor (See Fig. 10-5)

1. Remove the screw (F1) x 2 pc., to remove the tape motor.

Tape Motor

Clutch Ass'y

(F1)x2 Ø2.6x5mm

Pinch Roller Pawl

<A>

Pull

<B>

TAPE 2

Pinch Roller (C1)x1

(B1)x2 Ø2x9mm

FF/REW Belt (D2)x1

Figure 10-2

Pinch Roller (C1)x1

Figure 10-3

Tape

Motor

TAPE 1/TAPE 2

Pull

<B>

TAPE 2 Main Belt (D1)x1

Tape

Motor

<A>

TAPE 1 Main Belt (E1)x1

Pinch Roller Pawl

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– 9 –

Main Belt (D1)x1

Main Belt (E1)x1

Figure 10-4Figure 10-5

TAPE 1

FF/REW Belt (E2)x1

CD-E750DV

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter Specified Value

Play: TW-2111 Tape 1: Over 80 g

• Torque Check

Torque Meter

Play: TW-2111 30 to 80 g.cm 30 to 80 g.cm

Fast forward: TW-2231 — 70 to 180 g.cm

Rewind: TW-2231 — 70 to 180 g.cm

• Tape Speed

Test Tape

Normal MTT-111 Variable 3,000 ± 30 Hz Speaker speed Resistor in Terminal

Adjusting

motor. (Load

TAPE MECHANISM

Tape 2: Over 80 g

Tape 1

Point

Specified Value

Specified

Value

Tape 2

Instrument

Connection

resistance: 6 ohms)

• FM RF

Signal generator: 1kHz, 40 kHz dev., FM modulated

Test Stage

Frequency

Display

FM Band — 87.50 MHz T301 (fL): *1 Coverage 1.3 V ± 0.1 V

FM RF 98.00 MHz 98.00 MHz L312 *2

(10-30 dB)

Setting/

Adjusting

Point

Instrument

Connection

*1. Input: Antenna Output: TP301 *2. Input: Antenna Output: Speaker terminal

• FM IF

Signal generator: 10.7 MHz, FM modulated

Test Stage

Frequency

Display

Setting/

Adjusting

Point

IF 10.7 MHz 98.00 MHz T302 *1

(Turn the core of transformer T302 fully counterclock wise)

Instrument

Connection

*1. Input: Antenna Output: TP301

MAIN PWB

Tape Motor

Variable Resistor in motor

Figure 11-1

TUNER SECTION

fL: Low-range frequency fH: High-range frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

Frequency

Display

AM IF 450kHz 1,602 kHz T351 *1

AM Band — 531 kHz (fL): T306 *2 Coverage 1.1 V ± 0.1 V

AM Tracking 990 kHz 990 kHz (fL): T303 *1

*1. Input: Antenna Output: TP302 *2. Input: Antenna Output: TP301

Setting/

Adjusting

Parts

Instrument

Connection

SO301

TERMINAL

FM ANTENNA

CNP301

ANTENNA

AM/FM LOOP

FM BAND COVERAGE fL

R381

TP301

IC301

T303

AM TRACKING fL

L312

T302

FM RF

T301

FM IF

T306

AM BAND COVERAGE fL

T351

AM IF

Figure 11-2 ADJUSTMENT POINTS

R356

TP302

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– 10 –

CD-E750DV

DVD/CD SECTION

• Adjustment

Since this DVD/CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWBs and pickups can be combined freely. Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions.

DVD TEST MODE

DVD Test Mode Pressing down the DVD/CD button and X-BASS/DEMO button, press POWER button. ROM Renewal Mode Pressing down the DVD/CD button and EQUALIZER button, press POWER button.

[DVD TEST MODE]

Test mode initial image plane

F0000000 *AD#####

(* is a region number) (##### is a program version)

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

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

Model number display 10000001 *******# (Model number)

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

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

The "Playback" key of the remote controller is pushed. Reagion number display 10000003 0000000* (Region code:Binary display)

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

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

The preparation date display of the servo program 10000005 ******** (Servo ver.)

(* is a model number) (# is a region number)

(* is a region number)

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

To (1)

A4 (pg 9-14) 7/9/03, 2:26 PM11

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

It is returned to the test mode initial image plane.

Color bar display

20000001 00000000 (FIP)

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

It is returned to the test mode initial image plane.

Dynamic Test

30000000 00000000

– 11 –

There is no copy guard signal. As for the symptom when it was dubbed in the video tape recorder?

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