Hitachi UT47X902 Schematic

SERVICE MANUAL

Nov 10, 2008

SM00002

Added part No for Terminal Cover

PA No. 0240

UT47X902 / D8MW UT47V702 / D8MW

NTSC

ATSC

READY MONITOR

D8MW

UT47X902 - P#: HL02561 (CLU-4981S)

Chassis

SERVICE MANUAL REVISION HISTORY INFORMATION

DATE REVISION # REASON

Oct. 20, 2008 SM00001 FIRST ISSUE OF MANUAL

UT47V702 - P#: HL02562 (CLU-4982S)

Remote controls:

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

OCTOBER 2008 HIMEX MANUFACTURING DIVISION

LCD DISPLAY PANEL

SERVICE MANUAL

PA No. 0240

UT47X902 / D8MW UT47V702 / D8MW

NTSC

ATSC

READY MONITOR

D8MW

Chassis

UT42X902 - P#: HL02561 (CLU-4981S)

UT42V702 - P#: HL02562 (CLU-4982S)

Remote controls:

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

PRODUCT SAFETY NOTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

AGENCY REGULATORY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ACKNOWLEDGEMENTS AND TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . 9

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

BASIC SETUP & OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

TROUBLESHOOTING FLOWCHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

CONNECTIONS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

FINAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

FINAL ASSEMBLY GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

DC VOLTAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

CIRCUIT SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

MAIN PARTS VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

CAUTION:

These servicing instructions are for use by qualied service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualied to do so. Before servicing this chassis, it is important that the service technician read the “IMPORTANT SAFETY INSTRUCTIONS” in this service manual.

SAFETY NOTICE: USE ISOLATION TRANSFORMER WHEN SERVICING

Components having special safety characteristics are identied by a ! on the schematics and on the parts list in this service data and its suplements and bulletins. Before servicing the chassis, it is important that the service technician read and follow the “Important Safety Instructions” in this service manual.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LCD DISPLAY PANEL

OCTOBER 2008 HIMEX MANUFACTURING DIVISION

D8MW

SAFETY PRECAUTIONS

NOTICE: Comply with all cautions and safety-related notes located on or inside the cover case and on the chassis or LCD module. WARNING: Since the chassis of this receiver is connected to one side of the AC power supply during operation, whenever the receiver is plugged in service should not be attempted by anyone unfamiliar with the precautions necessary when working on this type of receiver.

1. When service is required, an isolation transformer should be inserted between power line and the receiver before any service is performed on a “HOT” chassis

receiver.

2. When replacing a chassis in the receiver, all the protective devices must be put back in place, such as barriers, nonmetallic knobs, insulating cover-shields, and isolation resistors, capacitors, etc.

3. When service is required, observe the original lead dress (wiredress).

4. Always use manufacturer’s replacement components. Critical components as indicated on the circuit diagram should not be replaced by another manufacturer’s. Furthermore, where a short circuit has occurred, replace those components that indicate evidence of

over heating.

5. Before returning a serviced receiver to the customer, the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock, and be sure that no protective device built into the receiver by the manufacturer has become defective, or inadvertently defeated during

servicing.

Therefore, the following checks should be performed for the continued protection of the customer and service

technician.

Leakage Current Cold Check

With the AC plug removed from the 120V AC 60Hz source, place a jumper across Line 1 and Line 2 of the three plug prongs, do not connect with the third prong, which is physical ground. Using an insulation tester (DC500V), connect one of its leads to the AC plug jumper and touch with the other lead each exposed metal part (antennas, screwheads, metal overlays, control shafts, etc.), particularly any exposed metal part having a return path to the chassis should have a resistor reading over 4MΩ. Any resistance value below this range indicates an abnormality which requires corrective action. An exposed metal part not having a return path to the chassis will indicate an open circuit.

Leakage Current Hot Check

Plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with the American National Standards Institute (ANSI) C101.0 Leakage Current for Appliances. In the case of the LCD monitor set the AC switch rst in the ON position and then in the OFF position, measure from across Line 1 and Line 2 of the three plug prongs (do not connect with the third prong which is physical ground), to all exposed metal parts of the instrument (antennas, handle bracket, metal cabinet, screw heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 MIU. Reverse the instrument power cord plug in the outlet and repeat test.

AC LEAKAGE TEST

(USING ADAPTER AS REQUIRED)

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE RECEIVER TO THE CUSTOMER.

NOTE:

Unplug the AC cord from the power

line before servicing the LCD TV set.

The Main Power Switch does not completely cut the AC power.

D8MW

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in HITACHI television receivers have special safety-related characteristics. These are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identied in this

Service Manual.

Electrical components having such features are identied with a ! mark in the schematics and parts list in this

Service Manual.

The use of a substitute replacement component which does not have the same safety characteristics as the HITACHI recommended replacement component, shown in the parts list in this Service Manual, may create shock, re, X-radiation, or other hazards.

Product safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current HITACHI Service Manual. A subscription to, or additional copies of HITACHI Service Manuals may be obtained at a nominal charge from HITACHI Sales Corporation.

SAFETY NOTICE

USE ISOLATION TRANSFORMER

WHEN SERVICING

POWER SOURCE This LCD television is designed to operate on 120 Volts/60Hz, AC house current. Insert the power cord

into a 120 Volts/60Hz outlet.

NEVER CONNECT THE LCD TV TO OTHER THAN THE SPECIFIED VOLTAGE OR TO DIRECT CURRENT AND TO 50HZ. TO PREVENT ELECTRIC SHOCK, DO NOT USE THE LCD TELEVISION’S (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE, OR THE OUTLETS UNLESS THE BLADES AND GROUND TERMINAL CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

UT47X902 and UT47V702 - LCD monitors

1. Follow the general caution recommendations from “Safety precautions” section.

2. If necessary to replace Panel module, this work must be started after the panel module and the AC/DC Power supply becomes sufciently cool.

3. Special care must be taken with the display area to avoid damaging its surface.

4. The Panel Module shall not be touched with bare hands to protect its surface from stains.

5. It is recommended to use clean soft gloves during the replacing work of the Panel module in order to protect, not only the display area of the panel module but also the serviceman.

6. Signal, power supply P.W.B.’s and LCD driving circuits P.W.B.’s are assembled on the rear side of the LCD module, take special care with this fragile circuitry. They are not strong enough to withstand harsh outer mechanical forces. Extreme bending of the exible connectors must be avoided too.

SERVICING PRECAUTIONS

D8MW

CAUTION: Before servicing instruments covered by this service data and its supplements and addendum, read and follow the information in previous pages number 2 and 3 of this publication.

NOTE: If unforeseen circumstances create conict between the following servicing precautions and any of the safety precautions on the previous pages of this publication, always follow the safety precautions. Remember: Safety First.

General Servicing Guidelines

1. Always unplug the instrument AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board, module, or any other instrument assembly. b. Disconnecting or reconnecting any instrument electrical plug or other electrical connection. c. Connecting a test substitute in parallel with an electrolytic capacitor in the instrument.

CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.

2. Do not spray chemicals on or near this instrument or any

of its assemblies.

3. Unless specied otherwise in these service data, clean

electrical contacts by applying the following mixture to the

contacts with a pipe cleaner, cotton-tipped stick or comparable

nonabrasive applicator: 10% (by volume) Acetone and 90%

(by volume) isopropyl alcohol (90%- 99% strength).

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some eld effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by static

electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or desolder ES devices.

4. Use only an anti-static type solder removal device. Some solder removal devices not classied as “anti-static” can generate electrical charges sufcient to damage ES device.

CAUTION: This is a ammable mixture. Unless specied otherwise in these service data, lubrication of contacts is not required.

4. Do not defeat any plug/socket of voltage interlocks with

which instruments covered by this service data might be

equipped.

5. Do not apply AC power to this instrument and/or any of its

electrical assemblies unless all solid-state device heatsinks

are correctly installed.

6. Always connect the test instrument ground lead to the

appropriate instrument chassis ground before connecting

the test instrument positive lead. Always remove the test

instrument ground lead last.

7. Use with this instrument only the test xtures specied in

this service data.

CAUTION: Do not connect the test xture ground strap to any heatsink in this instrument.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such

as the brushing together of your clothes fabric or the lifting of

your foot from a carpeted oor can generate static electricity sufcient to damage an ES device.)

D8MW

General Soldering Guidelines

1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range 600°F to 800°F.

2. Use an appropriate lead free solder (see page 8). Lead solder can be used, but there is a possibility of failure due to insufcient strength of the solder.

3. Keep the soldering iron tip clean and well-tinned.

4. Thoroughly clean the surfaces to be soldered. Use a small wire-bristle (0.5 inch or 1.25 cm) brush with a metal handle. Do not use freon-propelled spray-on cleaners.

5. Use the following desoldering technique. a. Allow the soldering iron tip to reach normal temperature (600°F to 800°F). b. Heat the component lead until the solder melts. Quickly draw away the melted solder with an antistatic, suction-type solder removal device or with solder braid.

CAUTION: Work quickly to avoid overheating the circuit board printed foil.

6. Use the following soldering technique. a. Allow the soldering iron tip to reach normal temperature (600°F to 800°F). b. First, hold the soldering iron tip and solder strand against the component lead until the solder melts. c. Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil, and hold it there only until the solder ows onto and around both the component lead and the foil.

CAUTION: Work quickly to avoid overheating the circuit board printed foil or components. d. Closely inspect the solder area and remove any excess or splashed solder with a small wire-bristle

brush.

Removal

1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts.

2. Draw away the melted solder with an anti-static suctiontype solder removal device (or with solder braid) before removing

the IC.

Replacement

1. Carefully insert the replacement IC in the circuit board.

2. Carefully bend each IC lead against the circuit foil pad and solder it.

3. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to areas.)

“Small-signal” Discrete Transistor Removal/ Replacement

1. Remove the defective transistor by clipping its leads as close as possible to the component body.

2. Bend into a “U” shape the end of each of the three leads remaining on the circuit board.

3. Bend into a “U” shape the replacement transistor leads.

4. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the “U” with long nose pliers to insure metal to metal contact, then solder each connection.

Power Output Transistor Devices Removal/ Replacements

1. Heat and remove all solder from around the transistor leads.

2. Remove the heatsink mounting screw (if so equipped).

3. Carefully remove the transistor from the circuit board.

4. Insert new transistor in circuit board.

5. Solder each transistor lead, and clip off excess lead.

6. Replace heatsink.

Use soldering iron to pry the leads.

IC Removal/Replacement

Some Hitachi unitized chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above.

Diode Removal/Replacement

1. Remove defective diode by clipping its leads as close as possible to diode body.

2. Bend the two remaining leads perpendicularly to the circuit board.

3. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board.

4. Securely crimp each connection and solder it.

5. Inspect (on the circuit board copper side) the solder joints of the two “original leads”. If they are not shiny, reheat them and, if necessary, apply additional solder.

Fuses and Conventional Resistor Removal/ Replacement

1. Clip each fuse or resistor lead at top of circuit board hollow stake.

2. Securely crimp leads of replacement component around stake 1/8 inch from top.

3. Solder the connections. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board, to prevent excessive component temperatures.

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board, causing the foil to separate from, or “liftoff,” the board. The following guidelines and procedures should be followed whenever this condition is encountered.

In Critical Copper Pattern Areas

High component/copper pattern density and/or special voltage/current characteristics make the spacing and integrity of copper pattern in some circuit board areas more critical than in others. The circuit foil in these areas is designated as Critical Copper Pattern. Because Critical Copper Pattern requires special soldering techniques to ensure the maintenance of reliability and safety standards, contact your Hitachi personnel.

At IC Connections

To repair defective copper pattern at IC connections, use the following procedure to install a jumper wire on the copper pattern side of the circuit board. (Use this technique only on IC connections.)

1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as much copper as absolutely necessary.)

2. Carefully scratch away the solder resist and acrylic coating (if used) from the end of the remaining copper pattern.

D8MW

At Other Connections

Use the following technique to repair defective copper pattern at connections other than IC Pins. This technique involves the installation of a jumper wire on the component side of the circuit board.

DEFECTIVE COPPER REMOVED

Insulated jumper wire

1. Remove the defective copper pattern with a sharp knife. Remove at least 1/4 inch of copper, to ensure hazardous condition will not exist if the jumper wire opens.

2. Trace along the copper pattern from both wire sides of the pattern break and locate the nearest component directly connected to the affected copper pattern.

3. Connect insulated 20-gauge jumper wire from the nearest component on one side of the pattern break to the lead of the nearest component on the other side. Carefully crimp and solder the connections. CAUTION: Be sure the insulated jumper wire is dressed so that it does not touch components or sharp edges.

BARE JUMPER WIRE

CRIMP AND SOLDER

Install jumper wire and solder.

3. Bend a small “U” in one end of a small-gauge jumper wire and carefully crimp it around the IC pin. Solder the IC

connection.

4. Route the jumper wire along the path of the cut-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area, and clip off any excess jumper wire.

D8MW

Leadless Chip Components (surface mount)

Chip components must be replaced with identical chips due to critical foil track spacing. There are no holes in the board to mount standard transistors or diodes. Some chip capacitor or resistor board solder pads may have holes through the board, however the hole diameter limits standard resistor replacement to 1/8 watt. Standard capacitors may also be limited for the same reason. It is recommended that identical chip components be used. Chip resistors have a three digit numerical resistance code -1st and 2nd signicant digits and a multiplier. Example: 162 = 1600 or 1.6KΩ resistor, 0 = 0Ω (jumper). Chip capacitors generally do not have the value indicated on the capacitor. The color of the component indicates the general range of the capacitance. Chip transistors are identied by a two letter code. The rst letter indicates the type and the second letter, the grade of transistor. Chip diodes have a two letter identication code as per the code chart and are a dual diode pack with either common anode or common cathode. Check the parts list for correct diode number.

Component Removal

1. Use solder wick to remove solder from component end caps or terminals.

2. Without pulling up, carefully twist the component with tweezers to break the adhesive.

3. Do not reuse removed leadless or chip components since they are subject to stress fracture during removal .

Chip Component Installation

1. Put a small amount of solder on the board soldering pads.

2. Hold the chip component against the soldering pads with tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder ows. Do not apply heat for more than 3 seconds

How to Replace Flat-lC —Required Tools—

• Soldering iron • iron wire or small awl

• De-solder braids • Magnier

1. Remove the solder from all of the pins of a Flat-lC by using a de-solder braid.

De-Solder

Braid

Soldering

Iron

2. Put the iron wire under the pins of the Flat-lC and pull it in the direction indicated while heating the pins using a soldering iron. A small awl can be used instead of the iron wire.

Pull

Soldering

Iron

Wire

Awl

Soldering

Iron

3. Remove the solder from all of the pads of the Flat-lC by using a de-solder braid.

Soldering

Iron

De-Solder

Braid

Flat-IC

4. Position the new Flat-lC in place (apply the pins of the Flat-lC to the soldering pads where the pins need to be soldered). Properly determine the positions of the soldering pads and pins by correctly aligning the polarity symbol.

Polarity Symbol

TYPE

ANODES

Chip Components

MH DIODE

TRANSISTOR

COMMON CATHODE

GRADE

SOLDER CAPS

1STDIGIT

RESISTOR

SOLDER CAPS

CAPACITOR

2ND DIGIT

MULTIPLIER = 1600 = 1.6K

5. Solder all pins to the soldering pads using a ne tipped soldering iron.

Solder

Soldering

Iron

6. Check with a magnier for solder bridge between the pins or for dry joint between pins and soldering pads. To remove a solder bridge, use a de-solder braid as shown in the gure below.

Bridge Solder

De-Solder

Braid

Soldering

Iron

Information for service about the lead-free solder introduction.

Hitachi introduced lead-free solder to conserve the “Earth Environment”. Please refer to the following before servicing.

(1) Characteristic of lead-free solder Melting point of lead free solder is 40-50°C higher than solder containing lead.

(2) Solder for service Following composition is recommended. “ Sn - 3.0Ag - 0.5Cu “ , or “ Sn - 0.7 Cu “ Lead solder can be used, but there is a possibility of failure due to insufcient strength of the solder.

Caution when using solder containing lead. Please remove previous solder as much as possible from the soldering point. When soldering, please perfectly melt the lead-free solder to mix well with the previous solder.

(3) Soldering iron for lead-free solder. Melting point of lead-free solder is higher than solder containing lead. Use of a soldering tool “with temperature control” and “with much thermal capacitance” is recommended. (Recommended temperature control : 320°C - 450°C; [608°F - 842°F])

Recommended temperature PWB with chip parts 320°C +/- 30°C (608°F +/- 86°F) PWB without chip parts 380°C +/- 30°C (716°F +/- 86°F) Chassis, metal, shield etc. 420°C +/- 30°C (788 °F +/- 86°F)

D8MW

(4) Identication of lead-free PWB 2004 models >> lead-free solder is introduced 2006 models >> lead-free solder applied

On lead-free PWB, “F” is added at the beginning of stamp on PWB.

AGENCY REGULATORY INFORMATION

Federal Communications Commission Notice

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/television technician for help.

FCC Information

This device complies with part15 of the FCC Rules.Operation is subject to the following two conditions : (1) This device may not cause harmful interference and (2) This device must accept any interference received, including interference that may cause undesired operation.

D8MW

Modications

The FCC requires the user to be notied that any changes or modications made to this device that are not expressly approved by Hitachi Home Electronics (America), Inc. may void the user’s authority to operate the equipment.

Cables

Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to maintain compliance with FCC Rules and Regulations. Any cables that are supplied with the system must be replaced with identical cables in order to assure compliance with FCC rules. Order Hitachi spares as replacement cables.

INDUSTRY CANADA AGENCY REGULATORY INFORMATION

This class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment

Regulations.

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

ACKNOWLEDGMENTS AND TRADEMARKS

HDMI, the HDMI logo and High-Denition Multimedia Interface are

trademarks or registered trademarks of HDMI Licensing LLC.

• VGA and XGA are trademarks of International Business Machines Corporation.

• VESA is a registered trademark of the Video Electronics Standard Association.

D8MW

INTRODUCTION

This HITACHI Service Manual is intended for the qualied service personnel and it contains the necessary infor-

mation for troubleshooting the LCD television set in case of malfunction.

This service manual includes the information for the next models and chassis.

DIMENSIONS:

MODEL CHASSIS

UT47X902 D8MW

UT47V702 D8MW

Height: Excluding stand - 29 5/16” (744.8mm), Including stand - 31 5/16” (794.9mm).

Width: 45 1/8” (1145.7mm).

Depth: Excluding stand - 1 9/16” (39.9mm), Including stand - 12 3/16” (310mm).

Weigth: Excluding stand - 21.9 kg (48.2 lb); Including stand - 24.8 kg (54.6 lb).

Unit: Inch/(mm)

POWER RATINGS:

No.

1 UT47X902 275 2.4 D8MW

2 UT47V702 275 2.4 D8MW

CIRCUIT PROTECTION:

CAUTION: It is very important to replace the fuse with the same kind of fuse as original.

The fuse rating is indicated in the silk of the printed circuit board near the fuse location.

Example: Hitachi part number of the fuse is: FN00562.

High breaking capacity ceramic tube fuse (Time-Lag fuse)

This means the fuse rating is 6.3A, 250V.

T6.3AH 250V

Model Name

Indicated Value

ChassisMax Rating

(W) (A)

TERMINALS AND JACKS

D8MW

HDMI

MODEL

NAME

UT47X902 1 1 1 1 1 1

UT47V702 1 1 1 1 1 1

MAIN FEATURES

• Ultra-slim-line LCD monitor.

• Large-screen and high denition LCD.

• Enjoy high resolution display (1920 (H) x 1080 (V) pixels).

• Improved digital signal processor.

• High quality sound with deeper, richer tones and bass boost.

• Accepts a digital input device with HDMI terminal.

• Enjoy the image from your PC with a large, high-denition LCD screen.

• Easy-to-use On-screen Display system operated by remote control.

• Low power consumption with power saving feature.

SPECIFICATIONS

TERMINAL

HDMI

D-SUB 15 PIN

ANALOG

RGB

COMPOSITE

VIDEO

3.5 MINI JACK

ANALOG

AUDIO

8 PIN

MINI-DIN

RS-232C

3.5 STEREO MINI JACK

IR-

THROUGH

SPECIFICATION UT47X902 UT47V702

Panel

Ambient conditions

Power supply AC120V, 60Hz

Audio output speaker 6W + 6W

HDMI input

RGB/Composite input

* This analog audio input terminal can be used for PC (RGB) or HDMI-DVI.

Display dimensions

Resolution 1920 (H) x 1080 (V) pixels

Temperature Operating: 5ºC to 35ºC, Storage: 0ºC to 40ºC

Relative humidity Operating: 20% to 80%, Storage: 20% to 90% (non-condensing)

Input terminals

Input signals

Input terminals

Input signals

Sync signals H/V separate, TTL level [2KW]

Approx. 47 inches measured diagonal (40 15/16 (H) x 23 1/16 (V) in) Approx. 11194 mm measured diagonal (1040 (H) x 585 (V) mm)

HDMI: HDMI input terminal Audio input terminal (Mini-pin)*

HDMI: VGA/60, 480i, 576i, 480p, 576p, 720p/50, 720p/60, 1080i/50, 1080i/60, 1080p/50, /1080p/60, 1080p/24.

Analog RGB input terminal (D-sub 15 pin) Audio input terminal (Mini-pin)*

0.7 Vp-p, analog RGB (Recommended Signal) Composite video: NTSC3.58, NTSC4.43, PAL, SECAM, PAL60, PAL-M, PAL-N.

BASIC SETUP AND OPERATION

For more information on connecting and using the monitor, refer to the owner’s guide.

. Connect the power cord to the rear panel.

3 Connect to external equipment.

Example 1: Connecting to PC To insert D-sub 15 pin, tilt the monitor forward and bring the terminals into view. Two people are required to hold the monitor and insert D-sub 15 pin safely. Be careful not to damage the panel.

*D-sub 15 and Audio cables are not included.

Example 2: Connecting to DVD player

Audio Cable

D-Sub 15

Tilt Forward

HDMI Cable

Power Cord

HDMI Cable

Power On...

. Connect the plug into the wall socket after all other

connections are completed.

CAUTION

Ensure that both ends of the power cord are easily

accessible.

The Main Power Switch is factory set to On (activated), therefore after you connect the plug into the wall socket, the color of the indicating lamp must turn Green and the Illumination Lamp turns Blue.The image will display on screen.

Once the Main Power switch is on, you can turn On/ Off by pressing the Power (On/Off) button on the remote control.

If no equipment is connected to the Monitor the color of the indicating lamp turns to Orange, and the Illumination Lamp turns off indicating Power Save Mode.

Wall

Socket

Monitor

Rear

Panel

Main Power Switch (on the underside)

Front

Rear

Illumination Lamp

Indicating Lamp

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BASIC SETUP AND OPERATION

Front Panel

Rear Panel

Cabinet

Panel

Remote Control Receiver

Indicating Lamp

Speaker

Illumination Lamp

Desktop Stand

Ÿ button

ź button

)

Volume Up/Ź button

Volume Down/Ż button

Input Select/OK button



Menu/Exit button

Power Cord Socket

HDMI Input Terminal

Please refer to the owner’s guide for detailed information regarding the connections.

. 3

$ /

(

Main Power switch

Service use only

RS232C

PC (RGB)/DVI Analog Audio Input Terminal

PC Connection Terminal (D-sub 15 Pin)

Reset button.

(,"0#

')*&+

Control panel (located on the bottom)

MENU/EXIT VOLINPUT/OK

3 .

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ADJUSTMENTS

TABLE OF CONTENTS OF ADJUSTMENTS

1. Adjustment procedure start-up

1.1 How to get to the service mode menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.2 Changing data and selecting adjustment codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. Memory Initialize

2.1 EEPROM All Initialize operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.2 EEPROM renew procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3 Memory Initialize affected adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3. Video Adjustment

3.1 RGB amplitude adjustment (PC D-SUB input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 NTSC Composite video adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4. Video Color Temperature adjustment

4.1 Video Color Temperature adjustment (Cool) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 Video Color Temperature adjustment (Normal) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Video Color Temperature adjustment (Warm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5. Another procedure to set to factory shipping conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1 Factory Shipping Conditions table 20

6. Software upgrade procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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1. ADJUSTMENT PROCEDURE START-UP

The UT47X902 and the UT47V702 LCD Monitors run through a series of adjustments at the factory. After servicing, these adjustments must be done again.

NOTE: - S/W version check -

The software version of the LCD monitor can be checked under the SETUP OSD menu. The next image shows the OSD where the version number is shown.

Main

S/W

Till this day, the latest software versions are:

Model Main S/W Sub S/W

All UT42” VS224 223

Sub S/W

1.2 Changing data and selecting adjustment codes.

When the UT monitor is in the Service Mode, use the remote control cursor keys ◄, ►, ▲, ▼ to make the adjustments. The bottom control panel in the UT monitor can also be used for making the adjustments.

A. Use the Remote Control:

The ▲, ▼, keys are used for selecting the adjustment item (in the same page). The ◄, ► keys are used for changing the data values. Use the VOL UP/DWN remote control button to scroll thru the diferent Service Menu pages. The “OK” button is equal to “Enter” key.

Next picture shows the R/C buttons mentioned in the previous explanation.

The software is subject to change, for the latest software call 1-800-HITACHI or log on to the Hitachi Service only web site www.hitachiserviceusa.com.

1.1 How to get to the Service Mode Menu

The Service Mode Menu can be reached by following the

next sequence:

1. With TV in the off condition (with Main Power Off) a) Press and hold Menu key of the bottom control panel, while holding the menu key, press and release the master power button. b) Keep pressing the menu key until the Service Menu appears on screen, release menu key.

2. To exit the Service Mode press [MENU] key of the remote

control or the UT monitor, the user menu OSD will appear.

The next picture shows the Service Mode OSD for the 42” models(example).

Main

S/W

Sub S/W

Service NO. DATA VS224 42LW-A MU 146 Sub223

0: 208 1: 230 2: 237 3: 215 4: 224 5: 213 6: 223 7: 224 8: 187 9: 224

VOLUME

button

Cursor

buttons

OK button

H: 33.6 V: 59.7 L: 562

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INPUT/OK

VOLMENU/EXIT

B. Use the Control Panel (located at the bottom):

Menu/Exit button is for calling the OSD menu or for exiting such menu or any other OSD. Input/Select button is for changing the displayed input or, when some OSD is beeing displayed, to be able to select the highlighted option. ◄ Vol - button is for reducing the audio volume or equivalent to the Left cursor key when an adjustment value is highlighted. ► Vol + button is for increasing the audio volume or equivalent to the Right cursor key when an adjustment value is highlighted. ▲ button is same as the R/C Up cursor button. ▼ button is same as the R/C Down cursor button.

The next gures show the labels of the bottom control panel and a bottom view of the buttons.

2.2 EEPROM RENEW Procedure:

There are two methods.

FIRST METHOD.

(1) Enter Service Mode by the procedure in section 1.1. (2) Change the data value of the adjustment item no. 659 from “0” to “1”. (3) Push the OK button in the remote control. The picture will disappear indicating that the initialization of the EEPROM is started. (4) About 2 seconds later, the initialization will nish and the picture will appear again. Do not turn of the power until the picture appears again. (5) Set the adjustment item no. 630 to data value 6.

SECOND METHOD.

(1) Turn off the monitor by side panel power switch. (2) Turn on the side panel power switch while keeping pushed the up cursor key of the bottom control panel for more than 5 seconds.

Conrm the settings are in factory shipping conditions (refer to section 5.1 of this manual).

2.3 Memory initialize affected adjustments:

2. MEMORY INITIALIZE

The memory initialize operation is to clear the contents of the data memory and to set all adjustment values to initial default. CAREFUL: The data that will be lost is shown in the section no. “2.3 Memory initialize affected adjustments”.

2.1 EEPROM ALL INIT Procedure:

(1) Enter Service Mode by the procedure in section 1.1.

(2) Select adjustment item no. 657 and push the OK button (the remote control must be set in normal TV mode). The picture will disappear, and the initialization of the EEPROM will start.

The next table shows the adjustment items which are affected by the Memory Initialize EEPROM ALL INIT operation and EEPROM RENEW operation.

Adjustment ALL INIT RENEW

White balance Reset Not reset

Amplitude Reset Not reset Item no. 657 Reset Not reset

3. VIDEO ADJUSTMENT

The next adjustments are related with the picture quality. Special care must be put.

3.1 RGB amplitude adjustment (PC D-SUB input)

Adjustment preparations

(1) Turn on the UT monitor, allow a 20 minutes heat-run before beginning the adjustment.

(2) Input the PC VGA[60Hz] adjustment signal into the PC D-SUB input terminal.

(3) The adjustment signal pattern is an 8 color bar. The black should be at the pedestal level.

(3) About 2 seconds later, the initialization process will nish and the picture will appear again. NOTE: Do not turn of the

(4) White level amplitude = 700 mV (100% of signal standard).

power until the picture appears again.

(4) Set the adjustment item no. 630 to data value 6.

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The next ghraphs show the waveform of the PC VGA[60Hz] adjustment signal.

[mV]

700.0

Wh Ye Cy Gr Mg Re Bl Bk

-300.0

[mV]

700.0

Wh Ye Cy Gr Mg Re Bl Bk

[mV]

700.0

Wh Ye Cy Gr Mg Re Bl Bk

NOTE: Request this optional cable to Hitachi under the next part numbers:

EW09192 - DSUB(LOW)-RCA CABLE 200MM

(4) The adjustment signal pattern is all white (The burst can be disregarded). (5) Set the amplitude of the adjustment signal [100% all white] to 750.0 mV which is 105% (100% of the standard signal is equal to 714.3 mV). The next graphics show the white raster pattern and the waveform of the signal.

All white raster pattern.

[mV]

750.0

-300.0

White signal waveform.

Adjustment procedures

(1) Receive the PC adjustment signal. (2) Select the adjustment item no. 658 of service adjustment menu and push the OK button during 2 seconds or more. The automatic adjustment will start. (3) When the on screen display appears again, the automatic adjustment is nished.

3.2 NTSC Composite Video Adjustment

Adjustment Preparations

(1) Turn on the UT monitor and allow a 20 minutes heat-run before starting the adjustment. (2) Change the RGB input setting of the MENU’s second page to “Composite”. (3) Input the composite video adjustment signal into the RGB D-SUB terminal. Consider the use of the next optional

cable.

EW09192

Adjustment Procedure

(1) Enter the Service Mode Menu by following the procedure

in section 1.1.

(2) Input the NTSC composite signal to the UT Monitor. (3) Select the no. 658 adjustment item in the Service Mode Menu and push the OK button for more than 2 seconds. (4) The OSD will disappear for a brief moment. Once it appears again, the adjustment is nish. (5) NOTE: Do not turn off the UT monitor until the OSD reappears.

4 VIDEO COLOR TEMPERATURE ADJUSTMENT.

The next adjustments are for setting the color coordinates or color temperature of the picture.

4.1 Cool mode.

Adjustment preparations

(1) Adjustment signal: HDMI 1080i Signal pattern: White raster. Video level: 90%.

(2) Picture settings: Factory setting, check that the mode is set as Factory shipping conditions. Picture mode: Dynamic.

D-Sub 15 pin < ------- > RCA plug.

(3) The color analizer (CA-210) should be veried by a spectrum radiation brightness meter such as CS-1000 or

The green color is connected.

standard LCD.

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(4) Set the aspect to full mode.

(5) Set the color analizer (CA-210) at the center of the panel.

Adjustment procedures

(1) Enter the Service mode.

(2) Check that the adjustment items no. 0, no. 1 and no. 2 of the Service Mode menu have the next initial values. If the initial values are different, set them as the following data.

No. 0 = 230 No. 1 = 230 No. 2 = 240

(3) Receive the white raster signal. Step down two (or only one) of either of the R DRV_COOL, G DRV_COOL or B DRV_COOL adjustment parameters and change to the following values (NOTE: At least one of the adjustment parameters should remain in the initial data value).

4.2 Normal Mode.

Adjustment preparations

(1) Adjustment signal: HDMI 1080i Signal pattern: White raster Video level: 90% (2) Picture settings: Factory setting. Check that the mode is set as the factory shipping conditions. Picture mode: Dynamic. (3) The color analyzer (CA-210) should be veried by a spectrum radiation brightness meter such as the CS-1000 or standard LCD. (4) Set aspect to full mode. (5) Set the color analyzer (CA-210) at the center of the panel.

Adjustment procedures.

(1) Enter the Service mode by following the procedure in

section 1.1.

(2) Check that the initial data of the adjustment items no. 3, 4 and 5 are in the following values. If their initial values are different, change them as shown.

Specication

Video Color Temperature (Cool)

x = 0.266 ± 0.005

y = 0.270 ± 0.005

14000K ± 0MPCD

REMARKS

(1) Color temperature should be adjusted under the condition in which the screen is the brightest, thus, the initial value of the adjustment is set at its maximum. This adjustment only decreases brightness.

(2) Beware, there is RESET in each picture mode.

(3) When the adjustment items no. 6, 7 or 8 are selected, the color temperature of the picture changes to warm mode.

No. 3 = 224 No. 4 = 224 No. 5 = 224

(3) Receive the white raster signal. And decrease the value of any two (or only one) of the R DRV_NORMAL, G DRV_ NORMAL or B DRV_NORMAL adjustment parameters in order to get the X/Y coordinates to the following values.

Specication

Video Color Temperature (Normal)

x = 0.285 ± 0.005

y = 0.293 ± 0.005

9300K ± 0MPCD

REMARKS

(1) Color temperature should be adjusted under the condition in which the screen is the brightest, thus, the initial value of adjustment is set at its maximum.

(2) Beware there is RESET in each of the picture mode.

(3) When the adjustment items no. 6, 7 or 8 are selected, the color temperature changes to warm mode.

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4.3 Warm mode.

Adjustment preparations.

(1) Adjustment signal: HDMI 1080i Signal pattern: White raster Video level: 90% (2) Picture settings: Factory shipping conditions. Picture mode: Dynamic. (3) The color analyzer (CA-210) should be veried by a spectrum radiation brightness meter such as the CS-1000 or an LCD standard. (4) Set the aspect to full mode. (5) Set the color analyzer (CA-210) at the center of the panel. (6) Adjustment of color temperature cool mode and normal mode should be nished.

Adjustment procedures.

(1) Enter the Service mode menu by following the procedure

in the section 1.1.

(2) Check that the initial data of the adjustment items no. 6, 7 and 8 are in the below shown values. If they are different, change them to...

(4) Color temperature Warm synchronizes with the drive data of the Normal mode color temperature. Therefore, when the drive data of Normal color temperature is changed, the drive data of the Warm color temperature is changed too.

5. Another procedure to set to Factory shipping conditions

Adjustment procedures

(1) Turn off the power (Power indicator: Off) (2) Push the ▲ key of the bottom control panel and turn on the power of the UT monitor while keeping the up cursor key pushed for more than 5 seconds. (3) Verify the values of the factory shipping conditions according with the table in the next page. (4) Set the adjustment item no. 630 to data value 6.

No. 6 = 224 No. 7 = 224 No. 8 = 224

(3) Receive the white raster signal. And decrease one or two of the parameters R DRV_WARM, G DRV_WARM, or B DRV_WARM in order to meet the X/Y coordinates with the below values. NOTE: At least one of the parameters should remain in the

initial value.

Specication

Video Color Temperature (Warm)

x = 0.313 ± 0.005

y = 0.329 ± 0.005

6500K ± 6.5MPCD

REMARKS

(1) Color temperature should be adjusted under the condition in which the screen is the brightest, thus, the initial value of adjustment is set at its maximum. (2) Beware there is RESET in each of picture mode. (3) When the adjustment items no. 6, 7 or 8 are selected, the color temperature of the picture changes to warm mode.

5.1 Factory shipping conditions:

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Item

Power Switch On (The switch is pushed condition.) Volume 20

Mute Off

Picture Mode Dynamic

Contrast +31 Brightness 0 Color +3 Sharpness 0 Tint -1 Color Temperature Cool Back Light +20

Deep Color Off Contrast Mode Dynamic 3D Color Management On Black Enhancement Middle

Picture

(HDMI/ Composite)

Picture

(RGB)

DNR Middle MPEG NR Low Cross Color NR Low

Game Mode Off Film Mode Smooth2

3D Comb Filter Low

Amplitude Red 0

Color

Temp. Adjus

Contrast +31 Brightness 0 Color 0 Tint 0

Color Temperature Normal

Amplitude Red 0

Color

Temp. Adjust

Back Light +20

Green 0

Blue 0

Cut off Red 0

Green 0

Blue 0

Green 0

Blue 0

Cut off Red 0

Green 0

Blue 0

Initial data

47” UT monitor

Off

Remarks

RGB

Input=Composite

only

5.1 ... factory shipping conditions continued.

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Item

Audio Treble +6

Bass +2 Balance 0 Surround Off Bass Boost On Clear Voice Off

Perfect Volume Off Speakers On

Function System ― Grayed out

HDMI Control Auto Input Change Off

System Standby None AV Center Control Off

Setup (HDMI)

Setup (RGB)

Language English (US)

Video Power Save Off

RGB Input RGB Grayed out Color System Auto Grayed out

Auto Adjust ― Horizontal Position 0

Vertical Position 0 Horizontal Clock 0 Clock Phase 0

Frequency Display On WXGA Mode Off RGB Input RGB

Initial data

47” UT monitor

Remarks

Instruction in software renewal

After software version up, set the following lists for reference.

Main Software Update

In this section, it explains the method of updating Main software. This procedure should be processed only when it is necessary to update Main software.

1) Prepare Mini Din 8-pin M to DB9F cable.

2) Connect MiniDin8pin plug to Service terminal.

3) Follow the procedure in the section 1.1

of this manual to get to the service adjustment

mode menu.

Select RS232C SW.

• Focus on No.653(RS232C SW).

• Press Right key (0 -> 1)

• Press “OK”.

4) Double click "ISP Utility" icon.

Double Click

bottom

6. Software upgrade procedure

DB9-F DIN8-M

1 OPEN 2 3 3 5 4 OPEN 5 4 6 OPEN 7 2 8 1 9 OPEN SHIELD SHIELD OPEN 6 OPEN 7 OPEN 8

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4) Request Hitachi the “ISP Utility” software. Install it in your personal computer and at the desktop, double click the “ISP utility” icon.

Click

Click Open

Click

5) Select

Connection : Serial,

Chip : FLI8538,

Flash : S29AL032D,

and click Flash Image select button.

6) Select the new software

ex) ("D8M_VC148.hex")

and click "Open".

7) Click "Start".

Then execute Erase, Program and

Ve ri f y.

8) Click "OK".

D8M

D8M_VC148.hex

FW2_VA117.hex

C:¥FW2_VA117.hex

6. ...software upgrade procedure (continued)

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Green display

9) Wait about 200 seconds until appear

"ISP successful".

(And appear Green display.)

13) Follow procedure in section 1.1 to get to

the service adjustment mode menu.

14) Focus on No.659 (EEPROM RENEW

operation) .

15) Press Right key (0 -> 1),

16) Press “OK”.

10) Exit ISP Utility.

12) Turn on the TV set again. .(Connect AC cord.)

11) Turn off the TV set.(Unplug AC cord.)

C:¥D8M_VC148.hex

6. ...software upgrade procedure (continued)

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Both numbers should be same

17) Wait until short blanking.

Then the value of No.659 will be changed to “0”.

(Finish EEPROM RENEW operation)

18) Press VOLUME UP/DOWN and the cursor UP/DWON button.

• Focus on No.630 (Custom tuning). 0: ASIA, 3:CHINA, 4:JAPAN, 6:N-AMERICA, 7:EUROPE.

• Press LEFT/Right key and select an appropriate value.

• Press “OK”.

• Press “MENU” key and exit the adjustment mode.

19) Turn off the power (Power indicator: Off). Push the up cursor key of the bottom control panel and turn

on the power of the UT monitor while keeping the up cursor key pushed for more than 5 seconds.

20) Turn off the TV set and remove MiniDin8pin connector.

6. ...software upgrade procedure (continued)

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Sub Software Update

In this section, it explains the method of updating Sub software. This procedure should be processed only when it is necessary to update Sub software.

��

Click

1) Turn off the TV set power.

5) Select a download file. (ex. D8M_SUB_V007.mot)

2) Connect E8 or E8a and PC with USB

connection cable.

3) Connect the E8 or E8a to connector

PM02:ZH-10pin.

4) Start “Flash Development Toolkit 4.00 Basic”.

(Start > All Program > Renesas > Flash Development Toolkit 4.00 > Flash Development Toolkit 4.00 Basic)



 

Rear view

6. ...software upgrade procedure (continued)

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Click

6) Turn On the TV set.

7) Click “Program Flash”.

8) Click “OK” without checking “Power Supply”. (start update)

10) Click “Exit”.

11) Turn Off the TV set.

12) Remove the E8 or E8a from the connector PM02.

13) Turn On the TV set.

9) Wait until appearing the message “Image successfully written to device”. (Finish Upadate)

(If necessary, verify the Flash Checksum.)

D8M_Sub_ROM

D8M_SUB_V007.mot

C:¥D8M_Sub_ROM¥D8M_SUB_V007.mot

6. ...software upgrade procedure (nished)

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TROUBLESHOOTING FLOWCHARTS

How to get to Burn-in mode

This mode displays the test patterns of some single color raster in turn. These signals are from built-in gener-

ator of panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in

mode is abnormal.

Using the remote control with the set turned on can activate the mode.

(1) Set the service adjustment mode.

(2) Change No.646 from “0” to “1”. After a few second, appear the burn-in picture.

(3) To escape from this mode, change No.646 from “1” to “0”.

At rst, please conrm whether you put a connector cable again, and a phenomenon comes out.

[no picture, no sound]

LED is not light.

Is the voltage of

pin 5 (+5.4V) of CNPS

(power supply unit)

normal?

It is trouble of Main PWB or Power supply unit. Please change.

It is trouble of Main PWB or Terminal PWB.

Picture trouble Go to “A” Sound trouble Go to “B”

Yes

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+ 67 hidden pages