Memorex MVD2009CB Service Manual

MVD2009CB

SERVICE MANUAL

COLOR TELEVISION/DVD VIDEO PLA YER

ORIGINAL

MFR'S VERSION A

Design and specifications are subject to change without notice.

IMPORT ANT W ARNING

CAUTION:

DVD PLAYER IS A CLASS 1 LASER PRODUCT. HOWEVER THIS PLAYER USES A VISIBLE LASER BEAM WHICH COULD CAUSE HAZARDOUS RADIATION EXPOSURE IF DIRECTED. BE SURE TO OPERATE THE PLAYER CORRECTLY AS INSTRUCTED.

THE FOLLOWING CAUTION LABEL IS LOCATED ON THE REAR PANEL OF THE PLAYER.

CLASS 1 LASER PRODUCT

(Printed on the Rear Panel)

WHEN THIS PLAYER IS PLUGGED TO THE WALL OUTLET, DO NOT PLACE YOUR EYES CLOSE TO THE OPENING OF THE DISC TRAY AND OTHER OPENINGS TO LOOK INTO THE INSIDE OF THIS PLAYER.

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

DO NOT OPEN COVERS AND DO NOT REPAIR YOURSELF. REFER SERVICING TO QUALIFIED PERSONNEL.

SERVICING NOTICES ON CHECKING

1. KEEP THE NOTICES 3. PUT PARTS AND WIRES IN THE

As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.

2. USE THE DESIGNATED PARTS

The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.

ORIGINAL POSITION AFTER ASSEMBLING OR WIRING

There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.

PERFORM A SAFETY CHECK AFTER

4. SERVICING

Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.

HOW TO ORDER PARTS

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)

1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be

found at the end of the SERIAL NUMBER.

2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.

A1-1

DISC REMOVAL METHOD AT NO POWER SUPPLY

Remove the Back Cabinet and AV PCB/DVD Block. (Refer to item 1 of the DISASSEMBLY

INSTRUCTIONS.)

Rotate the white gear of Deck CD section in the direction of the arrow by hand. (Refer to Fig. 1)

Draw the Tray.

Deck CDGear (White)

Fig. 1

PARENTAL CONTROL - RATING LEVEL

4 DIGIT PASSWORD CANCELLATION

If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below.

Turn Unit ON.

Press and hold the 'STOP' key on the front panel.

Simultaneously press and hold the '7' key on the remote control unit.

Hold both keys for more than 3 seconds.

The On Screen Display message 'PASSWORD CLEAR' will appear.

The 4 digit password has now been cleared.

NB: The above procedure will reset ALL of the player's settings to the default factory state.

A1-2

TABLE OF CONTENTS

IMPORTANT WARNING .........................................................................................................

SERVICING NOTICES ON CHECKING..................................................................................

HOW TO ORDER PARTS .......................................................................................................

TAPE REMOVAL METHOD AT NO POWER SUPPLY .........................................................

DISC REMOVAL METHOD AT NO POWER SUPPLY ..........................................................

TABLE OF CONTENTS...........................................................................................................

GENERAL SPECIFICATIONS.................................................................................................

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS.........................................

2. REMOVAL OF ANODE CAP...........................................................................................

3. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ............................................

SERVICE MODE LIST .............................................................................................................

CONFIRMATION OF HOURS USED ......................................................................................

WHEN REPLACING EEPROM (MEMORY) IC .......................................................................

SERVICING FIXTURES AND TOOLS ....................................................................................

ELECTRICALADJUSTMENTS.............................................................................................

BLOCK DIAGRAMS

DVD ST SOLUTION .............................................................................................................

TV .........................................................................................................................................

POWER ................................................................................................................................

PRINTED CIRCUIT BOARDS

DVD.......................................................................................................................................

AV/CRT.................................................................................................................................

POWER ................................................................................................................................

SCHEMATIC DIAGRAMS

RF_AMP/DSP .......................................................................................................................

MOTOR DRV ........................................................................................................................

MPEG....................................................................................................................................

MEMORY ..............................................................................................................................

AUDIO/VIDEO ......................................................................................................................

REGULATOR2......................................................................................................................

REGULATOR........................................................................................................................

MICON/TUNER ....................................................................................................................

CHROMA ..............................................................................................................................

SOUND AMP ........................................................................................................................

IN/OUT ..................................................................................................................................

STEREO ...............................................................................................................................

DEFLECTION .......................................................................................................................

CRT ......................................................................................................................................

POWER ................................................................................................................................

INTERCONNECTION DIAGRAM ............................................................................................

WAVEFORMS ..........................................................................................................................

MECHANICAL EXPLODED VIEWS........................................................................................

MECHANICAL REPLACEMENT PARTS LIST ......................................................................

ELECTRICAL REPLACEMENT PARTS LIST........................................................................

A1-1 A1-1 A1-1 A1-2 A1-2 A2-1 A3-1~A3-5

B1-1, B1-2 B2-1 B3-1, B3-2 C-1 C-1 C-2 C-2 D-1~D-6

E-1, E-2 E-3, E-4 E-5, E-6

F-1, F-2 F-3~F-6 F-7

G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 G-15, G-16 G-17, G-18 G-19, G-20 G-21, G-22 G-23, G-24 G-25, G-26 G-27, G-28 G-29, G-30 G-31, G-32 H-1~H-3 I1-1, I1-2 J1-1 J2-1~J2-3

A2-1

GENERAL SPECIFICATIONS

5oC

0oC

60oC

G-1 TV CRT CRT Size / Visual Size 9 inch / 228.6 mmV

G-2 DVD System Color System NTSC

G-3 Tuning Broadcasting System US System M

G-4 Signal Video Signal Input Level 1 V p-p/75 ohm

G-5 Power Power Source AC 120V, 60Hz

G-6 Regulation Safety UL

G-7 Temperature Operation

System CRT Type Normal

Color System NTSC Speaker 2 Speaker

Sound Output Max 1.2W + 1.2W

Disc DVD, CD-DA, CD-R/RW Disc Diameter 120 mm , 80 mm Deck Disc Loading System Front Loading

Pick up 1-Lens 2-Beams System Playback time(Max) DVD DVD 1-Layer 135min (4.7GB)

Search speed Fwd 2-15 times / 4 step (DVD)

Slow speed Fwd 1/8-1/2 times

System Tuner and System 1Tuner

Receive CH Destination US(w/CATV)

Intermediate Picture(FP) 45.75MHz Frequency Sound(FS) 41.25MHz

Preset CH No Stereo/Dual TV Sound US-Stereo Tuner Sound Muting Yes

RGB Signal Output Level -Audio Signal Input Level -8.0dBm/50k ohm

Power Consumption at AC 55W at 120V 60Hz

Protector Power Fuse Yes

Deflection 90 degree Magnetic Field BV/BH +0.45G / 0.18G

Position Side Size 3 inch Impedance 8 ohm

10%(Typical) 0.8W + 0.8W

Motor 3 Motors

DVD 2-Layer 245min (8.5GB) CD 74min Video CD --

Actual 2-45 times (DVD)

Rev 2-15 times / 4 step (DVD)

Actual 2-45 times (DVD)

Actual --

Tuning System F-Synth Input Impedance VHF/UHF 75 Ohm CH Coverage 2~69, 4A, A-5~A-1, A~I, J~W, W+1~W+84

FP-FS 4.50MHz

Output Level 1 V p-p/75 ohm S/N Ratio (Weighted) 65dB Horizontal Resolution at DVD Mode 400 Lines (TV Monitor)

Output Level

Digital Output Level 0.5 V p-p/75 ohm S/N Ratio at DVD (Weighted) 90 dB Harmonic Distortion 0.06% (1kHz) Frequency Response : at DVD 4Hz - 22kHz

at Video CD --

at CD 4Hz - 20kHz

DC 12 V

at DC 55W at 12V Stand by (at AC) 5 W at 120V 60Hz Per Year -- kWh/Year

Radiation FCC X-Radiation DHHS Laser DHHS

Storage

Rev 1/8-1/2 times

500 Lines (Video Out)

-8 dBm/ 1k ohm (TV Mode, 0dB=0.775Vrms)

-12dBm/ 1k ohm (DVD Mode, 20dBFs 0dBFs=2.0Vrms)

-2

~ +4

~ +

A3-1

2-20 times / 4 step (CD)

4-40 times (CD)

2-20 times / 4 step (CD)

4-40 times (CD)

GENERAL SPECIFICATIONS

G-8 Operating Humidity Less than 80% RH G-9 On Screen Menu(TV) Yes

G-10 On Screen Menu (DVD) Yes

Display Menu Type Icon

Open Yes Close Yes Clock No Clock Set No On/Off Timer No Sleep Timer Yes CH / AV(LINE) / DVD Yes Stereo/Audio Output Yes

Caption / Text Yes Auto Search/Position No Game No Volume Yes Mute Yes

Display Menu Type Character

Picture Yes

Sound No

CH Yes

Option Yes

Language Yes

Picture Yes

Sound Yes

Parental Yes

Open Yes Close Yes No disc Yes Reading Yes Play Yes Still/Pause Yes Stop Yes Prohibit Mark Yes Step Yes Skip(>>|) Yes Skip(|<<) Yes Random Yes (CD) Repeat Yes Slow+ Yes Slow- Yes Search+ Yes Search- Yes Jump Yes Resume Yes Title No. Yes Chapter No. Yes Track No. Yes

Brightness Yes Contrast Yes Color Yes Tint Yes Sharpness Yes

Bass No Treble No Balance No

TV/CATV Add/Delete Auto CH Memory

V-Chip Yes Language Yes

Bilingual No SAP Yes

OSD Language Yes Menu Yes SubTitle Yes Audio Yes

TV Screen Size Yes OSD Display On/Off Yes

DRC (Dynamic Range Control) Yes dts Decode No Output(5.1ch/ 2ch) No Surround On/Off No Center On/Off No Sub Woofer On/Off No

Password Lock/ Un Lock Yes Rating Level Yes

Yes Yes Yes

A3-2

GENERAL SPECIFICATIONS

Time Yes Sub Title No. Yes Angle No. Yes Vocal On/Off No Audio No. Yes Audio Stereo L/R No Zoom Yes Marker No. Yes Program Play Back Yes (CD) Surround On/Off No Screen Saver No MP3

G-11 OSD Language (TV) English, French, Spanish

(DVD) English, French, Spanish

G-12 Remote Unit RC-DT

Control Glow in Dark Remocon No

Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Keys Total Keys 46 Keys

Power Yes 1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes Open/Close Yes Play Yes Stop Yes Search+ Yes Search- Yes Skip+ Yes Skip- Yes Slow+ Yes Slow- Yes Still/Pause Yes Display/Call Yes TV/DVD Yes Cancel Yes Audio Select Yes Angle Yes Subtitle Yes Top Menu Yes Setup/TV Menu Yes Return Yes DVD Menu Yes Up/ Set+/ CH Up Yes Down/ Set-/ CH Down Yes Left/Select- Yes Right/Select+ Yes Select/Enter Yes Play Mode Yes Marker Yes Input Select Yes Volme + Yes Volme - Yes Repeat A-B Yes Zoom/ Quick View Yes Mute Yes Sleep Yes Jump/Closed Caption Yes

G-13 Features CATV Yes

Auto Shut Off Yes Auto Clock No Just Clock No Auto CH Memory Yes V-Chip USA V-chip Yes

CANADA V-chip No

Auto Search No

Folder Name

File Name No

File No No

Time No

Track No No

A3-3

GENERAL SPECIFICATIONS

SAP Yes Game Position No FM Transmitter No Energy Star No Closed Caption Yes Comb Filter No Protect of FBT Leak Circuit No Choke Coil No Power On Memory No Parental Lock (DVD Only) Yes Tray Lock No VIDEO CD Playback SVCD Playback

Overlay Graphics And Text No Command List No Entry Point Jump No

MP3 Playback WMA Playback No JPEG Playback No Digital Out (Dolby Digital) Yes

(MPEG) Yes (PCM) Yes (DTS) Yes

Down Mix Out (Dolby Digital) Yes

(DTS) No

Surround (Tru Surround) No Screen Saver Audio DAC 192kHz / 24bit

G-14 Accessories Owner's Manual Language English, Spanish

w/Guarantee Card No

Remote Control Unit Yes Battery No

UM size x pcs -OEM Brand --

Rod Antenna Yes

Poles 2 Poles Terminal F Type

Loop Antenna No

Terminal --

U/V Mixer No 300 ohm to 75 ohm Antenna Adapter No Antenna Change Plug No Guarantee Card Yes Registration Card No Warranty Card No ESP Card No Service Station List No DC Car Cord (Center+) Yes Columbia Offer Sheet No Carry 'Bag Yes (Supplied by a Buyer)

G-15 Interface Switch Front Power (Tact) Yes

Channel Up Yes Channel Down Yes Volume Up Yes Volume Down Yes Play Yes Open/Close Yes Skip(>>|) Yes Skip(|<<) Yes Still/Pause No Stop Yes Main Power SW No

Rear Main Power SW No

Indicator Power Yes (Red)

Stand-by No On Timer No

Terminals Front Video Input RCA x 1

Audio Input RCA x 2(Stereo) Other Terminal HeadPhone

Rear Video Input No

Audio Input No Video Output RCA x 1 Audio Output RCA x 2(Stereo) Digital Audio Output Coaxial (DVD Only) Diversity No DC Jack 12V(Center +) Yes VHF/UHF Antenna Input F Type

No No

A3-4

GENERAL SPECIFICATIONS

G-16 Set Size Approx. W x D x H (mm) 278x312.5x311.5 G-17 Weight Net (Approx.) 8.0 kg (17.6lbs)

G-18 Carton Master Carton No

Gift Box Yes

Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces

Container Stuffing (40' container) 840 Sets

G-19 Material Cabinet Front PS 94V0 DECABROM

PCB Non-Halogen Demand No

G-20 Environment Pb Free Lead-free Solder No

Cd Free No

Gross (Approx.) 11.5 kg (25.4lbs)

Content --- Sets Material --- / --Dimensions W x D x H(mm) --Description of Origin ---

Material Double/Brown W/Color Photo Label No Dimensions W x D x H(mm) 338 x 381 x 526 Design As Per Buyer 's Description of Origin Yes

Height (cm) 62

Rear PS 94V0 DECABROM Jack Panel -

Eyelet Demand Yes

Other No

A3-5

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS

1-1: BACK CABINET (Refer to Fig. 1-1)

Remove the 5 screws (1).

Remove the 2 screws (2).

Remove the screw (3).

Remove the Back Cabinet in the direction of arrow.

Front Cabinet

(1)

(3)

(1)

(2)

(1)

1-2: CRT PCB (Refer to Fig. 1-2) CAUTION: BEFORE REMOVING THE ANODE CAP,

DISCHARGE ELECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE. BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB, UNPLUG THE POWER CORD FROM THE AC SOURCE.

Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP)

Disconnect the following connector: (CP801).

Remove the CRT PCB in the direction of arrow.

Back Cabinet

Fig. 1-1

1-3: TV/DVD BLOCK (Refer to Fig. 1-3)

Remove the 2 screws (1).

Disconnect the following connectors: (CP301, CP302, CP401 and CP403).

Remove the TV/DVD Block in the direction of arrow.

(1)

Front Cabinet

TV/DVD Block

1-4: POWER PCB (Refer to Fig. 1-4)

Remove the screw (1).

1. Remove the Main PCB Holder.

2. Remove the 2 screws (2).

3. Disconnect the following connectors:

4. (CP3802 and CP3803). Remove the Power PCB in the direction of arrow.

(2)

Power PCB

(1)

Main PCB Holder

(1)

Fig. 1-3

Front Cabinet

CRT PCB

Fig. 1-2

B1-1

DVD Block

Fig. 1-4

DISASSEMBLY INSTRUCTIONS

1-5: FRONT TRAY PLATE/TOP SHIELD

(Refer to Fig. 1-5)

Unlock the 2 supports (1).

Remove the Front Tray Plate in the direction of arrow (A).

Remove the 12 screws (2).

Remove the Top Shield in the direction of arrow (B).

(2)

Front Tray Plate

(2)

(B)

(1)

(A)

(2)

Top Shield

(2)

(1)

(2)

DVD Deck

(3)

(1)

(B)

(2)

(A)

(1)

(2)

(3)

(C)

Pick Up PCB

Make the sort circuit using a soldering.

(3)

DVD PCB

(1)

Angle Deck

DVD Block

Fig. 1-5

1-6: DVD PCB/DVD DECK (Refer to Fig. 1-6)

Make the short circuit on the position as shown Fig. 1-6

1. using a soldering. If you remove the DVD Deck with no soldering, the Laser may be damaged. Disconnect the following connectors:

2. (CP8001 and CP8002). Remove the 4 screws (1).

3. Remove the Angle Deck in the direction of arrow (A).

4. Disconnect the following connectors:

5. (CP2001, CP2301 and CP2302). Remove the 4 screws (2).

6. Remove the DVD Deck in the direction of arrow (B).

7. Remove the 4 screws (3).

8. Remove the DVD PCB in the direction of arrow (C).

NOTE

When the installation of the DVD Deck, remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.

AV PCB

1-7: AV PCB (Refer to Fig. 1-7)

Remove the screw (1).

1. Remove the screw (2).

2. Remove the AV PCB in the direction of arrow.

AV PCB

Bottom Plate

Fig. 1-6

(1) (2)

Fig. 1-7

B1-2

DISASSEMBLY INSTRUCTIONS

2. REMOVAL OF ANODE CAP

Read the following NOTED items before starting work.

After turning the power off there might still be a potential

voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage.

Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.

REMOVAL

1. Follow the steps as follows to discharge the Anode Cap.

(Refer to Fig. 2-1.)

Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver. A cracking noise will be heard as the voltage is discharged.

GND on the CRT

3. After one side is removed, pull in the opposite direction to remove the other.

NOTE

Take care not to damage the Rubber Cap.

INSTALLATION

1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 2-3.)

NOTE

Confirm that there is no dirt, dust, etc. at the spot where the cap was located.

Location of Anode Cap

Fig. 2-3

Screwdriver

Alligator Clip

GND on the CRT

Flip up the sides of the Rubber Cap in the direction of

2. the arrow and remove one side of the support.

(Refer to Fig. 2-2.)

Rubber Cap

Support

CRT

Fig. 2-1

2.3.Arrange the wire of the Anode Cap and make sure the wire is not twisted. Turn over the Rubber Cap. (Refer to Fig. 2-4.)

Fig. 2-4

4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 2-5.

CRT

Support

Fig. 2-2

Support

CRT

5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.

B2-1

Fig. 2-5

DISASSEMBLY INSTRUCTIONS

REMOVAL AND INSTALLATION OF FLAT PACKAGE IC

REMOVAL

Put the Masking Tape (cotton tape) around the Flat

1. Package IC to protect other parts from any damage.

(Refer to Fig. 3-1.) NOTE

Masking is carried out on all the parts located within 10 mm distance from IC leads.

When IC starts moving back and forth easily after

3. desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 3-3.)

NOTE

Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.

Blower type IC desoldering machine

Masking Tape (Cotton Tape)

Heat the IC leads using a blower type IC desoldering

machine. (Refer to Fig. 3-2.)

NOTE

Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.

Blower type IC desoldering machine

Fig. 3-1

Tweezers

Fig. 3-3

Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided

5. Shield Wire. (Refer to Fig. 3-4.)

NOTE

Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.

Braided Shield Wire

Soldering Iron

IC pattern

Fig. 3-4

Fig. 3-2

B3-1

DISASSEMBLY INSTRUCTIONS

INSTALLATION

Take care of the polarity of new IC and then install the

1. new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

(Refer to Fig. 3-5.)

Soldering Iron

Solder temporarily

Fig. 3-5

Supply the solder from the upper position of IC leads

2. sliding to the lower position of the IC leads. (Refer to Fig. 3-6.)

When bridge-soldering between terminals and/or the

4. soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 3-8.)

Thin-tip Soldering Iron

Fig. 3-8

Finally, confirm the soldering status on four sides of the

5. IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.

NOTE

When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.

Soldering IronSolder

Absorb the solder left on the lead using the Braided

Supply soldering from upper position to lower position

Shield Wire. (Refer to Fig. 3-7.)

NOTE

Do not absorb the solder to excess.

Soldering Iron

Braided Shield Wire

Fig. 3-6

Fig. 3-7

B3-2

SER VICE MODE LIST

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote

control for more than a standard time (second).

Set Key

VOL. (-) MIN

VOL. (-) MIN 1

VOL. (-) MIN 4

VOL. (-) MIN 6

VOL. (-) MIN 8

VOL. (-) MIN 9

Standard Time

(seconds)

Releasing of V-CHIP PASSWORD. Initialization of the factory on TV.

NOTE:

Initialization of the factory on DVD. NOTE: Do not use this for the normal servicing.

POWER ON total hours are displayed on the screen. Refer to the "CONFIRMATION OF HOURS USED"

Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".

Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing.

Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

Do not use this for the normal servicing. If you set a factory initialization, the memories are reset such as the channel setting, and the POWER ON total hours.

The function will only work without the setting of DVD disc at DVD mode. While pressing the Remocon Key for more than the Standard Time, press the Set Key simultaneously.

OperationsRemocon Key

Releasing of PARENTAL LOCK. Refer to the "PARENTAL CONTROL - RATING LEVEL". NOTE:

STOP 7 3

The function will only work without the setting of DVD disc at DVD mode. While pressing the Remocon Key for more than the Standard Time, press the Set Key simultaneously.

CONFIRMATION OF HOURS USED

POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.

NOTE: If you set a factory initialization, the total hours is reset to "0".

Set the VOLUME to minimum.

Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.

After the confirmation of using hours, turn off the power.

ADDRESS DATA

INIT 00 06 CRT ON 0010

FIG. 1

Initial setting content of MEMORY IC.

POWER ON total hours.

= (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)

C-1

WHEN REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1.

NOTE: No need setting for after INI 1F due to the adjustment value.

+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 06 00 44 00 D0 45 30 25 05 51

30 70 05 05 88 03 60 00 78

Table 1

Enter DATA SET mode by setting VOLUME to minimum.

Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear as FIG 1.

ADDRESS DATA

INIT 00 06 CRT ON 0010

FIG. 1

ADDRESS is now selected and should "blink". Using the RIGHT/LEFT button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.

Press ENTER to select DATA. When DATA is selected, it will "blink".

Again, step through the DATA using RIGHT/LEFT button until required DATA value has been selected.

Pressing ENTER will take you back to ADDRESS for further selection if necessary.

Repeat steps 3 to 6 until all data has been checked.

When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

After the data input, set to the initializing of shipping.

Turn POWER on.

10.

Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 1 second.

11.

After the finishing of the initializing of shipping, the unit will turn off automatically.

The unit will now have the correct DATA for the new MEMORY IC.

+B +C +D +E +FINI 01 00 41 50 0F 4700 56 FF 05 FF FF FF

JG175A

DVD Test Disc (A-BEX TDV-540)

SERVICING FIXTURES AND TOOLS

Ref. No.

JG175A

Part No.

APJG175A00

Parts Name

DVD Test Disc (A-BEX TDV-540)

Remarks

Tint adjustment of DVD mode

C-2

ELECTRICAL ADJUSTMENTS

BEFORE MAKING ELECTRICAL ADJUSTMENTS

Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.

CAUTION

•

Use an isolation transformer when performing any service on this chassis.

•

Before removing the anode cap, discharge electricity because it contains high voltage.

•

When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position.

•

When you exchange IC and Transistor for a heat sink, apply the silicon grease (YG6260M) on the contact section of the heat sink. Before applying new silicon grease, remove all the old silicon grease. (Old grease may cause damages to the IC and Transistor).

Prepare the following measurement tools for electrical adjustments.

1. Oscilloscope

2. Digital Voltmeter

3. AC Voltmeter

4. Pattern Generator

5. Multi-Sound Signal Generator

On-Screen Display Adjustment

In the condition of NO indication on the screen.

1. Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen as shown in Fig. 1-1.

Function Step No.

01 OSD 15

NO.

FUNCTION

OSD H

OSD CONTRAST

CUT OFF

H POSITION

H.BLK L

H.BLK R

V SIZE

V POSITION

V LINEARITY

V S CORRECTION

V.COMP

R CUT OFF

G CUT OFF

B CUT OFF

R DRIVE

G DRIVE

B DRIVE

BRIGHTNESS(CENT.)

BRIGHTNESS(MAX)

BRIGHTNESS(MIN)

CONTRAST(CENT.)

CONTRAST(MAX)

CONTRAST(MIN)

COLOR(CENT.)

COLOR(MAX)

COLOR(MIN)

TINT

SHARPNESS

SUB BIAS

BRI. AV(CENT.)

BRI. AV(MAX)

BRI. AV(MIN)

CONT. AV(CENT.)

CONT. AV(MAX)

FUNCTION

NO.

CONT. AV(MIN)

COL. AV(CENT.)

COL. AV(MAX)

COL. AV(MIN)

TINT AV

SHARPNESS AV

SUB BIAS

BRI. DVD(CENT.)

BRI. DVD(MAX)

BRI. DVD(MIN)

CONT. DVD(CENT.)

CONT. DVD(MAX)

CONT. DVD(MIN)

COL. DVD(CENT.)

COL. DVD(MAX)

COL. DVD(MIN)

TINT DVD

SHARPNESS DVD

SUB BIAS

BRI. GAME(CENT.)

BRI. GAME(MAX)

BRI. GAME(MIN)

CONT. GAME(CENT.)

CONT. GAME(MAX)

CONT. GAME(MIN)

SUB BIAS

TUNING V MUTE

POWER ON V MUTE

INPUT LEVEL

SEPARATION L

SEPARATION H

X-RAY TEST

H.STOP

H.FREQ

Fig. 1-2

2. BASIC ADJUSTMENTS

2-1: CONSTANT VOLTAGE

Input DC12V to DC Jack and turn the Power ON.

Connect the digital voltmeter to the TP3801.

Set condition is AV MODE without signal.

Adjust the VR3801 until the digital voltmeter is 101 ± 0.5V.

Input AC120V to AC cord, and then remove the DC Jack cord.

Adjust the VR3802 until the digital voltmeter is 102 ± 0.5V.

2-2: FOCUS

Receive the monoscope pattern.

Turn the Focus Volume fully counterclockwise once.

Adjust the Focus Volume until picture is distinct.

Use the Channel UP/DOWN button or Channel button

2. (1-0) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end

3. the adjustments.

Fig. 1-1

2-3: LEVEL

2-4: CUT OFF

D-1

Receive the VHF HIGH (70dB). Connect the AC voltmeter to pin 6 of CP101. Activate the adjustment mode display of Fig. 1-1 and press the channel button (63) on the remote control to select "LVL". Press the RIGHT/LEFT button on the remote control until the AC voltmeter is 80 ± 2mV.

Adjust the unit to the following settings. R CUT=7F, G CUT=7F, B CUT=7F, R DRV=3F, G DRV=05, B DRV=3F Place the set with Aging Test for more than 15 minutes. Set condition is AV MODE without signal. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "CUT OFF". Adjust the Screen Volume until a dim raster is obtained.

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