Toshiba MD20FM3 Schematic

FILE NO. 140-200221

SERVICE MANUAL

COLOR TELEVISION/ DVD VIDEO PLAYER

MD20FM3

CA UTION

THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM. TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE-

FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE, CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE.

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

TO PREVENT DIRECT EXPOSURE TO LASER BEAM, DO NOT TRY TO OPEN THE ENCLOSURE. VISIBLE LASER RADIATION MAY BE PRESENT WHEN THE ENCLOSURE IS OPENED. DO NOT STARE INTO BEAM.

Location of the required Marking

The rating sheet and the safety caution are on the rear of the unit.

CERTIFICATION: COMPLIES WITH FDA RADIATION PERFORMANCE STANDARDS, 21 CFR SUBCHAPTER J.

A1-1

SERVICING NOTICES ON CHECKING

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. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.

3. 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.

4. PUT PARTS AND WIRES IN THE 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.

5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE

In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.

6. AVOID AN X-RAY1. KEEP THE NOTICES

Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.

PERFORM A SAFETY CHECK AFTER

7. 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.

(INSULATION CHECK PROCEDURE)

Unplug the plug from the AC outlet.

Remove the antenna terminal on TV and turn on the TV.

Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1].

If the insulation resistance is less than 1M ohm, the inspection repair should be required.

[Note 1]

If you have not the 500V insulation resistance meter, use a Tester.

[Note 2]

External exposure metal: Antenna terminal

Earphone jack

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.

A1-2

IMPORTANT SAFEGUARDS

READ INSTRUCTIONS

All the safety and operating instructions should be read before the unit is operated.

RETAIN INSTRUCTIONS

The safety and operating instructions should be retained for future reference.

HEED WARNINGS

All warnings on the unit and in the operating instructions should be adhered to.

FOLLOW INSTRUCTIONS

All operating and use instructions should be followed.

CLEANING

Unplug this unit from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

ATTACHMENTS

Do not use attachments not recommended by the unit’s manufacturer as they may cause hazards.

WATER AND MOISTURE

Do not use this unit near water. For example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool.

ACCESSORIES

Do not place this unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall, causing serious injury, and serious damage to the unit. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer.

8A.

An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.

VENTILATION

Slots and openings in the cabinet and in the back or bottom are provided for ventilation, to ensure reliable operation of the unit, and to protect it from overheating. These openings must not be blocked or covered. The openings should never be blocked by placing the unit on a bed, sofa, rug, or other similar surface. This unit should never be placed near or over a radiator or heat source. This unit should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instructions have been adhered to.

10.

POWER SOURCES

This unit should be operated only from the type of power source indicated on the rating plate. If you are not sure of the type of power supply to your home, consult your appliance dealer or local power company. For units intended to operate from battery power, or other sources, refer to the operating instructions.

11.

GROUNDING OR POLARIZATION

This unit is equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. If your unit is equipped with a 3-wire grounding-type plug, a plug having a third (grounding) pin, this plug will only fit into a grounding-type power outlet. This too, is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.

12.

POWER-CORD PROTECTION

Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.

13.

LIGHTNING

To protect your unit from a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the unit due to lightning and power line surges.

14.

POWER LINES

An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits, as contact with them might be fatal.

15.

OVERLOADING

Do not overload wall outlets and extension cords, as this can result in a risk of fire or electric shock.

16.

OBJECT AND LIQUID ENTRY

Do not push objects through any openings in this unit, as they may touch dangerous voltage points or short out parts that could result in fire or electric shock. Never spill or spray any type of liquid into the unit.

17.

OUTDOOR ANTENNA GROUNDING

If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA 70, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.

18.

SERVICING

Do not attempt to service this unit yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

PORTABLE CART WARNING

(symbol provided by RETAC)

S3126A

A1-3

IMPORTANT SAFEGUARDS (CONTINUED)

DAMAGE REQUIRING SERVICE

19.

Unplug this unit from the wall outlet and refer servicing to qualified service personnel under the following conditions:

When the power-supply cord or plug is damaged.

If liquid has been spilled, or objects have fallen into the unit.

If the unit has been exposed to rain or water.

If the unit does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the unit to its normal operation.

If the unit has been dropped or the cabinet has been damaged.

When the unit exhibits a distinct change in performance, this indicates a need for service.

REPLACEMENT PARTS

20.

When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or those that have the same characteristics as the original parts. Unauthorized substitutions may result in fire, electric shock or other hazards.

SAFETY CHECK

21.

Upon completion of any service or repairs to this unit, ask the service technician to perform safety checks to determine that the unit is in proper operating condition.

WALL OR CEILING MOUNTING

22.

The product should be mounted to a wall or ceiling only as recommended by the manufacturer.

HEAT

23.

The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.

DISC TRAY

24.

Keep your fingers well clear of the disc tray as it is closing. It may cause serious personal injury.

CONNECTING

25.

When you connect the product to other equipment, turn off the power and unplug all of the equipment from the wall outlet. Failure to do so may cause an electric shock and serious personal injury. Read the owner's manual of the other equipment carefully and follow the instructions when making any connections.

SOUND VOLUME

26.

Reduce the volume to the minimum level before you turn on the product. Otherwise, sudden high volume sound may cause hearing or speaker damage.

SOUND DISTORTION

27.

Do not allow the product output distorted sound for a longtime. It may cause speaker overheating and fire.

HEADPHONES

28.

When you use the headphones, keep the volume at a moderate level. If you use the headphones continuously with high volume sound, it may cause hearing damage.

LEASER BEAM

29.

Do not look into the opening of the disc tray or ventilation opening of the product to see the source of the laser beam. It may cause sight damage.

DISC

30.

Do not use a cracked, deformed, or repaired disc. These discs are easily broken and may cause serious personal injury and product malfunction.

NOTE TO CATV SYSTEM INSTALLER

31.

This reminder is provided to call the CATV system installer’s attention to Article 820-40 of the NEC that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE

GROUND CLAMP

ELECTRIC SERVICE

EQUIPMENT

NEC-NATIONAL ELECTRICAL CODE

S2898A

ANTENNA LEAD IN WIRE

ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)

GROUND CLAMPS

GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM

(NEC ART 250, PART H)

A1-4

DISC REMOVAL METHOD AT NO POWER SUPPLY

1.2.Remove the Back Cabinet and TV/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, remove the disc from Deck CD. (Refer to Fig. 1)

Deck CD

Gear (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.

1. Confirm that no disc on the disc tray.

2. Press and hold the '7' key on the remote control unit.

3. Simultaneously press and hold the 'STOP' key on the front panel.

4. Hold both keys for more than 3 seconds.

5. The On Screen Display message 'Initialize' will appear.

6. 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.

A1-5

CAUTION ................................................................................................................................

SERVICING NOTHCES ON CHECKING ...............................................................................

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

IMPORTANT SAFEGUARDS.................................................................................................

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

PARENTAL CONTROL-RATING LEVEL ...............................................................................

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 ....................................................................................

ELECTRICAL ADJUSTMENTS ..............................................................................................

BLOCK DIAGRAMS

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

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

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

PRINTED CIRCUIT BOARDS

SYSCON ..............................................................................................................................

AV ........................................................................................................................................

OPEARTION ........................................................................................................................

MAIN/CRT............................................................................................................................

SCHEMATIC DIAGRAMS

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

SDRAM ................................................................................................................................

SYSCON ..............................................................................................................................

VIDEO ENCORDER ............................................................................................................

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

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

VIF/SIF/CHROMA ................................................................................................................

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

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

AV SW..................................................................................................................................

COMB FILTER .....................................................................................................................

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

OPERATION ........................................................................................................................

TV POWER ..........................................................................................................................

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

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

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

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

MECHANICAL EXPLODED VIEW ..........................................................................................

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

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

A1-1 A1-2 A1-2 A1-3, A1-4 A1-5 A1-5 A2-1 A3-1~A3-6

B1-1, B1-2 B2-1 B3-1, B3-2 C-1 C-1 C-2 C-2 D-1~D-7

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

F-1, F-2 F-3~F-6 F-7, F-8 F-9, F-10

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 G-33, G-34 H-1~H-4 I-1, I-2 J1-1 J2-1~J2-6

A2-1

GENERAL SPECIFICATIONS

G-1 TV CRT CRT Size / Visual Size 20 Inch / 508.0 mmV

G-2 DVD System Color System NTSC

G-3 Tuning Broadcasting System US System M

G-4 Power Power Source AC 120V, 60Hz

G-5 Signal Video Signal Input Level 1 V p-p/75 ohm

System CRT Type FLAT

Deflection 90 degree

Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2 Speaker

Position Front

Size 3 Inch

Impedance 8 Ohm Sound Output Max 2.5x2.5 W

10%(Typical) 2.0x2.0 W

Disc

Disc Diameter 120 mm , 80 mm Deck Disc Loading System Front Loading

Motor 3 Motors Pick up 1-Lens 2-Beams System Playback time(Max) DVD 1 DVD 1-Layer 135min (4.7GB)

DVD 2-Layer 245min (8.5GB)

CD 74min

VIDEO CD --min Search speed Fwd 2-20 times

Actual 2-45 times

Rev 2-20 times

Actual 2-45 times

Slow speed Fwd 1/7-1/2 times

Actual --

Rev 1/7 -1/2 times

Actual 1-2 times

System

Tuner and System 1Tuner Receive CH Channel Tuner Others

Tuning System F-Synth

Input Impedance VHF/UHF 75 Ohm

CH Coverage Intermediate Picture(FP) 45.75MHz

Frequency Sound(FS) 41.25MHz

FP-FS 4.50MHz Preset CH -Stereo/Dual TV Sound Yes NTSC Playback (PAL60) No

DC -Power Consumption at AC 120W at 120V 60Hz

at DC -Stand by (at AC) 8 W at 120V 60Hz Per Year -- kWh/Year

Power Supply Cord UL Protector Power Fuse Yes

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

500 Lines ( Video Out) RGB Signal Output Level -- V p-p/75 ohm Audio Signal Input Level RCA -8.0dB/50Kohm

Output Level RCA -8.0dB/1Kohm S/N Ratio at DVD (Weighted) 90 dB Harmonic Distortion 0.01% (1KHz) Frequency Response : at DVD 4Hz - 22KHz

at VIDEO CD --

at CD 4Hz - 20KHz

Digital Audio Signal Output Level 0.5 V p-p/75 ohm

DVD Video,CD-DA,CD-R

(CD-DA), CD-RW(CD-DA)

2~69, 4A, A-5~A-1, A~I, J~W, W+1~W+84

A3-1

GENERAL SPECIFICATIONS

G-6 Interface Switch Front Power (Tact) Yes

Rear AC/DC No

Indicator Power Red

Fluorescent Indicator DVD Yes No

Music Calender(1-14,Play) Yes No

Terminals Front Video Input Yes

Rear Video Input(Rear1) Yes

G-7 Set Size Approx. W x D x H (mm) 574x483x514.5 G-8 Weight Net (Approx.) 25.5kg

G-9 Regulation Safety UL

G-10 Temperature Operation 5oC ~ 40oC

G-11 Operating Humidity Less than 80% RH

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

Color On/Off (SECAM Only) No Degauss No Main Power SW No

Stand-by No On Timer No

Pause Yes No Track Yes No

-B Yes No VIDEO Yes No CD Yes No Play Yes No ALL Yes No PROG Yes No Mic Mark Yes No Title Yes No Repeat Yes No PBC Yes No Angle Yes No Chapter Yes No A Yes No

7-seg Digit(9) Yes No

Audio Input Yes (Stereo) Other Terminal Head Phone

Video Input(Rear2) No Audio Input(Rear1) Yes (Stereo) Audio Input(Rear2) No Video Output Yes Audio Output Yes (Stereo) Euro Scart No Digital Audio Output Coaxial Optical Audio Output No Color Stream No Diversity No Ext Speaker No DC Jack 12V(Center +) No VHF/UHF Antenna Input F Type AC Outlet No

Gross (Approx.) 29.0kg

Radiation FCC X-Radiation DHHS

Storage -20oC ~ 60oC

A3-2

GENERAL SPECIFICATIONS

G-12 On Screen Menu(TV) Yes

Display Menu Type Icon

Clock No Clock Set No On/Off Timer No Sleep Timer Yes CH/AV/DVD Yes Stereo, Audio Output, Bilingual No Stereo, Mono, SAP(Stereo Only) Yes Stereo, Audio Output No Sound 1/2 No SAP (Stereo Only) Yes NICAM Auto Off No Closed Caption Yes System Select No Area Code No Pin Code Registration No Pin Code No DVD RGB /Composite No Game Yes Hotel Lock No Volume Yes

On Screen Display Menu Type Character

Sound Mute No Menu(DVD)

Open Yes Close Yes No disc Yes Reading Yes Play Yes Still/Pause Yes Stop Yes Prohibit Mark Yes Step Yes Next Yes Back Yes Random Yes(CD Only) Repeat Yes Slow+ ## Yes Slow- ## Yes Search+ ## Yes Search- ## Yes Jump Yes Resume Yes Title No. Yes Chapter No. Yes Track No. Yes Time Yes Sub Title No. Yes Angle No. Yes Vocal On/Off Yes Audio No. Yes Audio Stereo L/R No Zoom Yes Marker No. No Program Play Back Yes(CD Only)

Picture Yes

Sound Yes

CH Yes

Option Yes

Rating Level Yes Audio Yes Sub Title Yes TV Screen Size Yes OSD Display On/Off Yes Menu Language Yes Audio Output No Set Up Language Yes Password Lock/Unlock Yes

Contrast Yes Brightness Yes Color Yes Tint Yes Sharpness Yes

Bass Yes Treble Yes Balance Yes

Auto CH Memory ADD/DELETE TV/CATV

Language Yes V-Chip Yes

Yes

A3-3

GENERAL SPECIFICATIONS

G-13 OSD Language (TV) Eng, Fre, Spa

G-14 Remote Unit RC-EF

Control Glow in Dark Remocon Yes

(DVD) Eng, Fre, Spa

Format NEC Custom Code 71-8E h Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Keys Total 45 Key

Power Yes 1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes Open/Close No 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 Clear/Reset Yes Audio/Audio Sel. Yes Angle Yes Subtitle Yes Subtitle On/Off No Title Yes Set up/TV Menu <TV MENU> Yes Return Yes Menu DVD <SET UP> Yes Up/ Set+/ CH Up Yes Down/ Set-/ CH Down Yes Left/Select- Yes Right/Select+ Yes Select/Enter Yes Play Mode Yes Closed Caption Yes Input Yes Volume+ Yes Volume- Yes Repeat A-B Yes Zoom/ Quick View Yes Mute No Sleep Yes Jump Yes Text/Mix/TV No Game Yes

A3-4

GENERAL SPECIFICATIONS

G-15 Features Auto Degauss Yes

Auto Shut Off Yes Auto Power On, Auto Play No Canal+ No CATV Yes Anti-theft No Rental No Memory(Last CH) Yes Memory(Last Volume) Yes V-Chip Yes

Type -BBE No Fast Text No UniText No Top Text No Auto Search No CH Allocation No SAP Yes Channel Lock No Just Clock Function No Game Position Yes CH Label No VM Circuit No Area Code No FM Transmitter No Energy Star No TV Monitor No Closed Caption Yes Full OSD Yes Premiere No Comb Filter Yes

2 Lines Parental Lock (DVD Only) Yes Auto CH Memory Yes Hotel Lock No Stable Sound No Favorite CH No Digital Out (Dolby Digital) Yes

(PCM) Yes

(DTS) Yes Down Mix Out (Dolby Digital) Yes Self Diagnostic No MP3 Playback No

A3-5

GENERAL SPECIFICATIONS

G-16 Accessories Owner's Manual Language Eng

Guarantee Card No Registration Card(NDL Card) No Registration Card Yes Warranty Card No Information Sheet No ESP Card No Toll Free Insert Sheet No Warning Sheet No Survice Information Sheet No Quick Set-up Sheet No Euro Warranty Information Sheet No Dew/AHC Caution Sheet No PTB Sheet No Circuit Diagram No Service Facility List No Service Station List No Inportant Safeguard No Remote Control Unit Yes Rod Antenna No

Loop Antenna No

75 Ohm Coaxial Cable No

21pin Cable No U/V Mixer No Channel Film No Battery Yes

DC Car Cord (Center+) No AC Cord No AV Cord (2Pin-1Pin) No AC Plug Adaptor No Safety Tip No Anntena Change Plug No 300 ohm to 75 ohm Antenna Adapter Yes

G-17 Carton Master Carton No

Gift Box Yes

Drop Test

Container Stuffing 171 Sets/40' container

G-18 Cabinet Material Cabinet Front PS, 94V0

w/Guarantee Card Yes

Poles No

Terminal --

UM size x pcs UM-4 x 2 pcs

OEM Brand No

Content --- Sets

Material --- / ---

Dimensions W x D x H(mm) ---

Description of Origin ---

Material Double/White(1st Lot [W255009] only,

Double/Full Color(2nd Lot [W255083] onward) W/Color Phote Label No Dimensions W x D x H(mm) 647x620x625 Design As Per Buyer 's Description of Origin Yes

Natural Dropping At 1 Corner / 3 Edges / 6

Height (cm) 31

Cabinet Rear PS, 94V0

Surfaces

A3-6

DISASSEMBLY INSTRUCTIONS

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

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

Remove the 6 screws 1.

Remove the 2 screws 2 which are used for holding the Back Cabinet.

Remove the AC cord from the AC cord hook 3.

Remove the Back Cabinet in the direction of arrow.

Front Cabinet

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 connectors: (CP801 and CP850B).

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: (CP102, CP303, CP401 and CP502).

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

Front Cabinet

TV/DVD Block

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

Remove the 2 screws 1.

Remove the 3 screws 2.

Disconnect the following connectors: (CP810B, CP820B and CP811).

Remove the Main PCB in the direction of arrow.

Main PCB

Fig. 1-3

Front Cabinet

CRT PCB

DVD Block

Fig. 1-4

Fig. 1-2

B1-1

DISASSEMBLY INSTRUCTIONS

1-5: FRONT TRAY PLATE/TOP SHIELD

(Refer to Fig. 1-5)

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

Remove the 9 screws 1.

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

(B)

Front Tray Plate

(A)

Top Shield

DVD Block

Fig. 1-5

CD Deck

(C)

(B)

(A)

Syscon PCB

Angle Deck

AV PCB

(D)

1-6: AV PCB/SYSCON PCB/CD DECK (Refer to Fig. 1-6)

Remove the 3 screws 1.

Remove the AV PCB in the direction of arrow (A).

Remove the 4 screws 2.

Remove the Angle Deck in the direction of arrow (B).

Disconnect the following connectors: (CP4001 and CP4002).

Remove the 4 screws 3.

Remove the CD Deck in the direction of arrow (C).

Remove the 4 screws 4.

Remove the Syscon PCB in the direction of arrow (D).

Bottom Plate

Fig. 1-6

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

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.

Fig. 3-3

Braided Shield Wire

Soldering Iron

Fig. 3-2

IC pattern

Fig. 3-4

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

Supply the solder from the upper position of IC leads

Solder temporarily

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

Fig. 3-5

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

SERVICE 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 3

VOL. (-) MIN 6

VOL. (-) MIN 8

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 and PLAY/REC total hours are displayed on the screen. Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (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.

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

Display of the Adjustment MENU on the screen.

VOL. (-) MIN 9

STOP 7 3

Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

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

The function will only work without the setting of DVD disc at DVD mode.

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 F9 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 the position of the mark @ due to the adjustment value.

INI

+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F

00 D9 3F 3F 40 61 63

F9 43 25 01 F1 23 27 F7 81 CD 64 67 69 2A 6B 6C 6D 6E 6F10 26 70 71 52 72 53 73 54 55 75 75 56 56 76 76 5720 74 57 77 77 58 58 78

78 59 79 79 5A 5A 7A 7A 5B30 59 5B 7B 7B 5C 5C 7C

7C 5D 7D 7D 5E 5E 7E 7E 5F40 5D 5F 5F 7F 7F @ @

@@@@@@@@@50 @ @ @ @ @ @ @ @@@@@@@@@60 @ @ 10 --- --- --- ---

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 F9 CRT ON 0010

FIG. 1

ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN 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 VOL. UP/DOWN 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.

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

SERVICING FIXTURES AND TOOLS

JG175A

DVD Test Disc (A-BEX TDV-540)

Ref. No.

JG175A

Part No.

APJG175A00

Parts Name

DVD Test Disc (A-BEX TDV-540)

Tint adjustment of DVD mode

Remarks

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 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

NO.

FUNCTION

R CUT OFF

G CUT OFF

B CUT OFF

G DRIVE

B DRIVE

BRIGHTNESS(CENT.)

BRIGHTNESS(MAX)

BRIGHTNESS(MIN)

COLOR(CENT.)

COLOR(MAX)

COLOR(MIN)

TINT

SUB CONTRAST

CONTRAST(CENT.)

CONTRAST(MAX)

CONTRAST(MIN)

SHARPNESS

RGB CONTRAST

H POSITION

V POSITION

V SIZE

V LINEARITY

V S CORRECTION

EW PARABOLA CORR.

EW TRAPEZIUM CORR.

H SIZE

V EHT

H EHT

RF AGC

V CENTERING

CORNER CORR. TOP

CORNER CORR. BTM

OSD H

FM LEVEL

TEST PWM

TEST TONE CONTROL

FUNCTION

NO.

BRI. AV(CENT.)

BRI. AV(MAX)

BRI. AV(MIN)

COL. AV(CENT.)

COL. AV(MAX)

COL. AV(MIN)

TINT AV

SUB CONTRAST AV

CONT. AV(CENT.)

CONT. AV(MAX)

CONT. AV(MIN)

SHARPNESS AV

BRI. DVD(CENT.)

BRI. DVD(MAX)

BRI. DVD(MIN)

COL. DVD(CENT.)

COL. DVD(MAX)

COL. DVD(MIN)

TINT DVD

SUB CONTRAST DVD

CONT. DVD(CENT.)

CONT. DVD(MAX)

CONT. DVD(MIN)

SHARPNESS DVD

BRI. GAME(CENT.)

BRI. GAME(MAX)

BRI. GAME(MIN)

CONT. GAME(CENT.)

CONT. GAME(MAX)

CONT. GAME(MIN)

TUNING V MUTE

POWER ON V MUTE

INPUT LEVEL

SEPARATION L

SEPARATION H

CUT OFF

Fig. 1-2

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.

Use the Channel UP/DOWN button or Channel button

01 RCUT 3E

(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. BASIC ADJUSTMENTS

2-1: CONSTANT VOLTAGE

Set condition is AV MODE without signal.

Using the remote control, set the brightness and contrast to normal position.

Connect the digital voltmeter to TP401.

Adjust the VR502 until the digital voltmeter is 111 ± 0.5V.

2-2: RF AGC

Receive the VHF HIGH (63dB).

Place the set with Aging Test for more than 15 minutes.

Connect the digital voltmeter between the pin 5 of CP101 and the pin 1 of CP101.

Activate the adjustment mode display of Fig. 1-1 and press the channel button (29) on the remote control to select "AGC".

Press the RIGHT/LEFT button on the remote control until the digital voltmeter is 2.7 ± 0.05V.

2-3: FOCUS

Receive the monoscope pattern.

Turn the Focus Volume fully counterclockwise once.

Adjust the Focus Volume until picture is distinct.

2-4: CUT OFF

Adjust the unit to the following settings. R CUT=7F, G CUT=7F, B CUT=7F, G DRV=3F, 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 (72) on the remote control to select "CUT OFF".

Adjust the Screen Volume until a dim raster is obtained.

D-1

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