Memorex MVD2019 Schematic

CLASS 1 LASER PRODUCT

MVD2019

SERVICE MANUAL

COLOR TELEVISION/D VD PLAYER

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

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

INSTRUCTIONS.)

Rotate the black gear of Deck CD section in the direction of the arrow by hand, remove the disc from Deck CD. (Refer to Fig. 1)

Deck CDGear (Black)

Fig. 1

PARENTAL CONTROL - RATING LEVEL

4-DIGIT SECURITY CODE 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 "Complete" will appear.

6. The 4-digit passord 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 .......................................................................................................

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 DVD DECK PARTS .................................................................................

3. REMOVAL OF ANODE CAP ...........................................................................................

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

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

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

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

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

BLOCK DIAGRAMS

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

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

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

PRINTED CIRCUIT BOARDS

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

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

RELAY/SW/FG.....................................................................................................................

SCHEMATIC DIAGRAMS

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

SW/RELAY/FG ....................................................................................................................

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

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

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

DVD DECK EXPLODED VIEW ...............................................................................................

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

DVD DECK REPLACEMENT PARTS LIST ............................................................................

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

SERIAL NUMBER CODE........................................................................................................

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

B1-1, B1-2 B2-1, B2-4 B3-1 B4-1, B4-2 C-1 C-1 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, F-8

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-3 I1-1, I1-2 I2-1 J1-1 J2-1 J3-1~J3-3 K-1

A2-1

GENERAL SPECIFICATIONS

5oC

0oC

60oC

G-1 TV CRT CRT Size / Visual Size 19 inch / 480.0 mmV

System CRT Type Normal

Color System NTSC Speaker 2 Speaker

Sound Output Max 2.5W + 2.5W

G-2 DVD System Color System NTSC

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) DVDDVD 1-Layer 135min (4.7GB)

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

Slow speed Fwd 1/8-1/2 times

G-3 Tuning Broadcasting System US System M

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

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

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

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

Power Consumption at AC 90W at 120V 60Hz

Protector Power Fuse Yes

G-6 Regulation Safety UL

G-7 Temperature Operation

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

Display Menu Type Icon

Picture Yes

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

Position Front Size 3 inch Impedance 8 ohm

10%(Typical) 2.0W + 2.0W

Motor 2 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)

TV Output Level (0dB=0.775Vrms) -3.8dBm/1K ohm

DVD Output Level (-20dBFs 0dBFs=2.0Vrms) -12.0dBm/1k ohm

Digital Output Level 0.5V 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 --

at DC -Stand by (at AC) 5W 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)

-2

2-20 times / 4 step (CD)

4-40 times (CD)

2-20 times / 4 step (CD)

4-40 times (CD)

~ +4

~ +

A3-1

GENERAL SPECIFICATIONS

Brightness Yes Contrast Yes Color Yes Tint Yes

Sound No

CH Yes

Option Yes

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

G-10 On Screen Menu (DVD) Yes

Display Menu Type Character

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 Time Yes Sub Title No. Yes Angle No. Yes Vocal On/Off No

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

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 Folder Name No

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

(DVD) English, French, Spanish

G-12 Remote Unit RC-DT

Control Glow in Dark Remocon No

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

UM size x pcs UM-4 x 2 pcs

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/Step Yes Display (Call) Yes TV/DVD Yes Cancel Yes Audio Yes Angle Yes Subtitle Yes Top Menu(Title) Yes Setup/Menu(TV) Yes Return Yes 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 Volume + Yes Volume - 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 SAP Yes Game Position No

File Name No

File No No

Time No

Track No No

A3-3

GENERAL SPECIFICATIONS

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 No MP3 Playback No Digital Out (Dolby Digital) Yes

Down Mix Out (Dolby Digital) Yes

Surround (Tru Surround) No Screen Saver No

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

Remote Control Unit Yes Battery No

Rod Antenna No

Loop Antenna No

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+) No Columbia Offer Sheet No

G-15 Interface Switch Front Power (Tact) Yes

Rear Main Power SW No

Indicator Power Yes (Red)

Terminals Front Video Input RCA x 1

Rear Video Input No

G-16 Set Size Approx. W x D x H (mm) 489x465x480 G-17 Weight Net (Approx.) 21.5kg (47.4lbs)

G-18 Carton Master Carton No

Gift Box Yes

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

(DTS) No

w/Guarantee Card No

UM size x pcs -OEM Brand --

Poles No Terminal --

Terminal --

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

Stand-by No On Timer No

Audio Input RCA x 2(Stereo) Other Terminal Headphone

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 +) No VHF/UHF Antenna Input F Type

Gross (Approx.) 24.5kg (54.0lbs)

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

Material Double/White

A3-4

GENERAL SPECIFICATIONS

W/Color Photo Label No Dimensions W x D x H(mm) 559x538x555 Design As Per Buyer 's

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

Container Stuffing (40' container) 352 Sets

G-19 Material Cabinet Front PS 94V0 DECABROM

PCB Non-Halogen Demand No

Description of Origin Yes

Height (cm) 46

Rear PS 94V0 DECABROM Jack Panel -

Eyelet Yes

A3-5

DISASSEMBLY INSTRUCTIONS

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

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

Remove the 7 screws 1.

Remove the screw 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.

1. (Refer to REMOVAL OF ANODE CAP) Disconnect the following connector:

2. (CP801). Remove the CRT PCB in the direction of arrow.

Front Cabinet

Back Cabinet

Fig. 1-1

CRT PCB

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

Remove the 2 screws 1.

1. Disconnect the following connectors:

2. (CP301, CP302, CP401 and CP3800). Remove the AV PCB/DVD Block in the direction of arrow.

Front Cabinet

AV PCB/DVD Block

Fig. 1-3

1-4: DVD BLOCK (Refer to Fig. 1-4)

Remove the 11 screws 1.

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

Disconnect the following connectors: (CP8001 and CP8002).

Remove the 4 screws 2.

Remove the DVD Block in the direction of arrow (B).

Remove the 2 screws 3.

Remove the Jack Shield.

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

(A)

Top Shield

DVD Block

Fig. 1-2

B1-1

AV PCB

Jack Shield

(B)

(C)

Bottom Plate

Fig. 1-4

DISASSEMBLY INSTRUCTIONS

1-5: DVD PCB/DVD DECK (Refer to Fig. 1-5)

Make the short circuit on the position as shown Fig. 1-5 using a soldering. If you remove the DVD Deck with no soldering, the Laser may be damaged.

Unlock the 2 supports 1.

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

Disconnect the following connectors: (CP2001, CP2301 and CP2302).

Remove the 4 screws 2.

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

Remove the 4 screws 3.

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

DVD Deck

(A)

DVD PCB

Front Tray Plate

(B)

(C)

Make the short circuit using a soldering.

Deck Angle

Pick Up PCB

Fig. 1-5

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.

B1-2

DISASSEMBLY INSTRUCTIONS

2. REMOVAL OF DVD DECK PARTS

NOTE

1. Do not disassemble the DVD DECK PARTS except listed parts here. Minute adjustments are needed if the disassemble is done. If the repair is needed except listed parts, replace the DVD MECHA ASS'Y.

2-1: TRAY (Refer to Fig. 2-1-A)

Set the Tray opened. (Refer to the DISC REMOVAL

METHOD AT NO POWER SUPPLY)

Unlock the support 1 and remove the Tray.

2-3:

RACK LOADING/MAIN GEAR/ RACK LOADING SPRING (Refer to Fig. 2-3)

Press down the catcher 1 and slide the Rack Loading.

1. Remove the Rack Loading, Rack Loading Spring and

2. Main Gear.

Rack Loading

Rack Loading Spring

Main Gear

Main Frame Ass'y

Tray

Fig. 2-1-A

NOTE

In case of the Tray installation, install them as the circled

1. section of Fig. 2-1-B so that the each markers are met.

Tray

Main Frame Ass'y

Fig. 2-1-B

2-2: MAIN CHASSIS ASS'Y (Refer to Fig. 2-2)

Remove the Main Chassis Ass'y from the Insulator (R).

1. Unlock the support 1.

2. Remove the Main Chassis Ass'y.

Insulator (R) (Green)

Main Frame Ass'y

Fig. 2-3

2-4:

CLAMPER ASS'Y/INSULATOR(R)/LEVER SWITCH (Refer to Fig. 2-4-A)

Remove the screw 1.

1. Remove the Lever Switch.

2. Remove the 2 Insulator (R).

3. Press the Clamper and rotate the Clamper Plate clockwise,

4. then unlock the 3 supports 2. Remove the Clamper Plate, Clamper Magnet and Clamper.

Clamper Plate

Clamper Magnet

Lever Switch

Insulator (R) (Green)

Clamper

Main Frame

Fig. 2-4-A

NOTE

When installing the Clamper Magnet, install it with the green face up.

When installing the wire of the Lever Switch, install it correctly as Fig. 2-4-B.

When installing the Lever Switch, install it correctly as Fig. 2-4-C.

In case of the Lever Switch installation, hook the wire on the Main Frame as shown Fig. 2-4-D.

Main Chassis Ass'y

Fig. 2-2

B2-1

Lever Switch

White

Blue

Red

From DVD PCB

Fig. 2-4-B

DISASSEMBLY INSTRUCTIONS

The Lever should be position between A and B.

Rack Loading

2-5:

TRAVERSE HOLDER/INSULATOR (F)

(Refer to Fig. 2-5-A)

Remove the Traverse Holder.

1. Remove the 2 Insulator (F).

Main Chassis Ass'y

Insulator (F) (Black)

Traverse Holder

Fig. 2-4-C

Lever Switch

Fig. 2-4-D

2-6: SWITCH PCB ASS'Y (Refer to Fig. 2-6-A)

Remove the screw 1.

1. Remove the Switch PCB Ass'y.

Switch PCB Ass'y

Main Chassis Ass'y

• Screw Torque: 4 ± 0.5kgf•cm

Fig. 2-6-A

NOTE

1. When installing the wire of the Switch PCB, install it correctly as Fig. 2-6-B.

Switch PCB Ass'y

Black

From Relay PCB

White

Fig. 2-6-B

2-7: RACK FEED ASS'Y (Refer to Fig. 2-7-A)

Remove the screw 1.

1. Remove the Rack Feed 1/2 Spring, Rack Feed 1/2 and

2. Rack Feed Lever.

Insulator (F) (Black)

Fig. 2-5-A

NOTE

1. After the installing of the Traverse Holder, check if the wire is like Fig. 2-5-B.

Main Chassis Ass'y

Traverse Holder

Fig. 2-5-B

Rack Feed 2

Rack Feed 1 Spring

Rack Feed 2 Spring

Rack Feed Lever

Rack Feed 1

Main Chassis Ass'y

• Screw Torque: 3.5 ± 0.5kgf•cm

Fig. 2-7-A

NOTE

1.2.After the assembly of the Rack Feed, check if the Rack Feed 1/2 is moving smoothly. (Refer to Fig. 2-7-B) In case of the Rack Feed Ass'y installation, install correctly as Fig. 2-7-C.

B2-2

Moving smoothly

DISASSEMBLY INSTRUCTIONS

2-9: GEAR (Refer to Fig. 2-9-A)

Unlock the support 1.

1. Remove the Middle Gear 1/2/3, Idler Gear and Feed Gear.

Moving smoothly

Should not be engaged.

Check the position of the Rack Feed Lever.

2-8: RELAY PCB ASS'Y (Refer to Fig. 2-8-A)

Remove the screw 1.

1. Remove the Relay PCB Ass'y.

Main Chassis Ass'y

Relay PCB Ass'y

• Screw Torque: 4 ± 0.5kgf•cm

Fig. 2-7-B

Fig. 2-7-C

Fig. 2-8-A

Middle Gear 2

Middle Gear 1

Middle Gear 3

Idler Gear

Main Chassis Ass'y

Feed Gear

Fig. 2-9-A

NOTE

1.2.In case of the Idler Gear installation, install correctly as Fig. 2-9-B. When installing the Middle Gear 2, check if the Middle Gear 2 is locked correctly as Fig. 2-9-C.

[OK] [NG]

Idler Gear

Idler Arm Idler Arm

Check Lock

Idler Gear

Fig. 2-9-B

NOTE

1. When installing the wire of the Relay PCB, install it correctly as Fig. 2-8-B.

Fig. 2-8-B

Middle Gear 2

2-10: IDLER ARM (Refer to Fig. 2-10-A)

Remove the Idler Arm Spring.

1. Remove the Chassis Spring.

2. Remove the Idler Arm.

Idler Arm Spring

Idler Arm

Main Chassis Ass'y

Chassis Spring

Fig. 2-9-C

Fig. 2-10-A

B2-3

DISASSEMBLY INSTRUCTIONS

NOTE

In case of the Idler Arm installation, install as the circled section of Fig. 2-10-B.

In case of the Idler Arm Spring installation, install as the circled section of Fig. 2-10-C.

In case of the Chassis Spring installation, install as the circled section of Fig. 2-10-D.

Idler Arm

Main Chassis Ass'y

Fig. 2-10-B

Idler Arm Spring

Main Chassis Ass'y

Motor Gear

Feed Motor

• Screw Torque: 1 ± 0.5kgf•cm

Fig. 2-11-A

NOTE

1.2.In case of the Motor Gear installation, check if the value of the Fig. 2-11-B is correct. When installing the Feed Motor, check if the cable is positioned as Fig. 2-11-C.

Motor Gear

Feed Motor

6.1 ± 0.1mm

Main Chassis Ass'y

2-11: FEED MOTOR (Refer to Fig. 2-11-A)

Remove the 2 screws 1.

1. Remove the Feed Motor.

2. Remove the Motor Gear.

Fig. 2-10-C

Chassis Spring

Fig. 2-10-D

Safety surface for pressing of the insert.

Main Chassis Ass'y

Pass the cable between 2 pins.

Fig. 2-11-B

Feed Motor

Fig. 2-11-C

B2-4

DISASSEMBLY INSTRUCTIONS

3. 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. 3-1.)

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. 3-3.)

NOTE

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

Location of Anode Cap

Fig. 3-3

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. 3-2.)

Rubber Cap

Support

CRT

Fig. 3-1

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. 3-4.)

Fig. 3-4

4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.

CRT

Support

Fig. 3-2

Support

CRT

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

B3-1

Fig. 3-5

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. 4-1.) 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. 4-3.)

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. 4-2.)

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. 4-1

Tweezers

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

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

NOTE

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

Fig. 4-3

Braided Shield Wire

Soldering Iron

Fig. 4-2

IC pattern

Fig. 4-4

B4-1

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. 4-5.)

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. 4-6.)

Fig. 4-5

When bridge-soldering between terminals and/or the

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

Thin-tip Soldering Iron

Fig. 4-8

Finally, confirm the soldering status on four sides of the IC

5. 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

Supply soldering from upper position to lower position

Fig. 4-6

Absorb the solder left on the lead using the Braided Shield

3. Wire. (Refer to Fig. 4-7.)

NOTE

Do not absorb the solder to excess.

Soldering Iron

Braided Shield Wire

Fig. 4-7

B4-2

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.1 Initialization of the factory on TV.

NOTE:

Initialization of the factory on DVD. NOTE:

POWER ON 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.

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.

Do not use this for the normal servicing. The function will only work at the DVD stop mode.

OperationsRemocon Key

Tray cannot be opened.

STOP 9 3

Refer to the “TRAY LOCK”. NOTE:

No indications on the screen when the Tray Lock is setting.

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 2 second.

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

ADDRESS DATA

INIT 00 07 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

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