SHARP 60NP4, 50NP4 Service Manual

APRIL 2000

Models:

50NP4/60NP4

PROJECTION COLOR

TELEVISION

S/M: S01TM50/60//E

SERVICE MANUAL

CONTENTS

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TECHNICAL CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

CIRCUIT PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CAUTIONS WHEN CONNECTING/DISCONNECTING THE HV CONNECTOR . . . . . .12

GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . .19

SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

ADJUSTMENT POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

WIRING DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

CIRCUIT SCHEMATICS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

In the interest of user-safety (required by safety regulations in some countries), the set should be restored to its original conditiion and only parts identical to those specified should be used.

CAUTION: Before servicing this chassis, it is important that the service technician read the ÒSafety PrecautionÓ

and ÒProduct Safety NoticesÓ in this service manual.

SAFETY NOTICE

USE ISOLATION TRANSFORMER WHEN SERVICING

Components having special safety characteristics are identified by a on the schematics and on the parts list in this Service Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician read and follow the ÒSafety PrecautionsÓ and ÒProduct Safety NoticesÓ in this Service Manual.

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE

SHARP CORPORATION

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

IMPORTANT SERVICE SAFETY PRECAUTION

J Service work should be performed only by qualified service technicians who are throughly familiar with all

safety checks and the servicing guidelines which follow:

WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

3. Semiconductor heat sinks are potential shcok hazards when the chassis is operating.

4. The chassis in this receiver has two ground systems which are separated by insulating material. The non-isolated (hot) ground system is for the B+ voltage regulator circuit and the horizontal output circuit. The isolated ground system is for the low B+ DC voltages and the secondary circuit of the high voltage transformer. To prevent electrical shock use an isolation transformer between the line cord and power receptable, when servicing this chassis.

SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE

When servicing the high voltage system, remove the static charge by connecting a 10k ohm resistor in series with an insulated wire (such as a test probe) between the picture tube ground and the anode lead. (AC line cord should be disconnected from AC outlet.)

1. Picture tube in this receiver employs integral implosion protection.

2. Replace with tube of the same type number for continued safety.

3. Do not lift picture tube by the neck.

4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage anode completely.

4A 125V

CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A125V FUSE.

X-RADIATION AND HIGH VOLTAGE LIMITS

1. Be sure all service personnel are aware of the procedures and instructions covering X-radiation. The only potential source of X-ray in current solid state TV receivers is the picture tube. However, the picture tube does not emit measurable X=Ray radiation, if the high voltage is as specified in the ÒHigh Voltage CheckÓ instructions. It is only when high voltage is excessive that X-radiation is capable of penetrating the shell of the picture tuve including the lead in the glass material. The important precaution is to keep the high voltage below the maximum level specified.

2. Is is essential that servicemen have available at all times an accurate high voltage meter. The calibration of this meter should be checked periodically.

3. High voltage should always be kept at the rated value - no higher. Operation at higher voltages may cause a failure of the picture tube or high volate circuity and also, under certain conditions, may produce radiation in exceeding of desirable levels.

4. When the high voltage regulator is operating properly there is no possibility of an X-radiation problem. Every time a color chassis is serviced, the brightness should be tested while monitoring the high voltage with a meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly.

5. Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry.

6. When trouble shooting and taking test measurements on a receiver with excessive high voltage, avoid being unnecessarily close to the receiver. Do not operate the receiver longer than is necessary to locate the cause of excessive voltage.

LEAKAGE CURRENT TESTER

(READING SHOULD NOT BE ABOVE 0.5mA)

EARTH GROUND

TEST ALL EXPOSED METAL SURFACES

DEVICE UNDER TEST

2-WIRE CORD

ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUS AS REQUIRED)

AC Leakage Test

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks.

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver.

2. Inspect all protective devices such as non-metallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistorcapacity networks, mechanical insulators and etc.

3. To be sure that no shock hazard exists, check for leakage current in the followingmanner.

¥ Plug the AC cord directly into a 120 volt AC outlet, (Donot

use an isolation transformer for this test).

¥ Using two clip leads, connect a 1.4k ohm, 10 watt resistor

paralleled by a 0.15mF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to earth ground.

¥ Use an AC voltmeter having with 5000 ohm per volt, or

higher, sensitivity to measure the AC voltage drop across the resistor.

IMPORTANT SERVICE SAFETY PRECAUTION

(Continued)

¥ Connect the resistor connection to all exposed metal

parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon and etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC line cord plug connection reversed. (If necessary, a non-polarized adapter plug must be used only for the purpose of completing these checks.) Any current measured must not exceed 0.5 milliamp. Any measurements not within the limits outlined above indicate of a potential shock hazard and corrective action must be taken before returing the instrument to the customer.

SAFETY NOTICE

many electrical and mechanical parts in television receivers have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarllity increased by using replacement components rated for higher voltage, wattage, and etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by and shaded areas in the Replacement Parts Lists and Schematic Diagrams.

For continued protection, replacement parts must be identical to those used in the origianl circuit. The use of substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire, X-radiation or other hazards.

g. X-radiation – TUBE: The primary source of X-

radiation in this receiver is the picture tube. The tube utilized for the above mentioned function in this chassis is specially constructed to limit X-radiation emissions. For continued X-radiation protection, the replacement tube must be the same type as the original, Sharp approved type. When troubleshooting and making test measurements in a receiver with a problem of excessive high voltage, avoid being unnecessarily close to the picture tube and the high voltage component. Do not operate the chassis longer than is necessary to locate the cause of excessive voltage.

h. X-radiation Shield –

1. This receiver is provided with X-ray shield plates for protection against X-radiation. Do not remove X-ray shield plates A, B, or C shown in Fig. 1 unnecessarily, when troubleshooting and/or making test measurements.

2. To prevent X-radiation, after replacement of picture tube and lens, confirm these components to be fixed correctly to bracket and cabinet, and not to be taken off easily.

Shield Plate A (1.6mm)

Glass Lens for Shielding

Shield Plate B (1.6mm)

Shield Plate C (1.6mm)

Detailing X-radiation shield, ( ) plate thickness

Shield Plate B (1.6mm)

Fig. 1. Installation of shield lens, shield cover and shield plates (oblique view).

2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the receiver chassis, or on the picture tube.

3. Design Alteration Warning Ð Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and additions including but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connectors, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions may void the manufacturerÕs warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4. Picture Tube Implosion Protection Warning Ð The picture tube in this receiver employs integral implosion protection. For continued implosion protection, replace the picture tube only with one of the same type number. Do not remove, install, or otherwise handle the picture tube in any manner without first putting on shatterproof goggles equipped with side shields. People not so equipped must be kept safely away while picture tubes are handled. Keep the picture tube away from your body. Do not handle the picture tube by its neck.

5. Hot Chassis Warning Ð a. Some TV receiver chassis are electrically connected directly to one conductor of the AC power cord and may be safely serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. Confirm that the AC power plug is inserted correctly with an AC voltmeter by measuring between the chassis and a known earth ground. If a voltage reading in excess of

1.0V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground. b. Some TV receiver chassis normally have 85V AC (RMS) between chassis and earth ground regardless of the AC plug polarity. These chassis can be safely serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection. c. Some TV receiver chassis have a secondary ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulating material that must not be defeated or altered.

6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts Ð be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage and e. antenna wiring. Always inspect in all areas for pinched, out-ofplate, or frayed wiring. Do not change spacing between components and the printed circuit board. Check AC power cord for damage.

7. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.

8. PRODUCT SAFETY NOTICE Ð Many TV electrical and mechanical parts have special safety-related characteristics some of which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified in Sharp service data by shading on schematics and by a in the parts list. Use of substitute replacement that does not have the same safety characteristics as the recommended replacement part in Sharp service data parts list might create shock, fire, and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. For the latest information, always consult the appropriate current Sharp service literature. A subscription to, or additional copies of service literature may be obtained at a nominal charge from Sharp.

CAUTION: Before servicing instruments covered by this service data and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 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.

d. Discharging the picture tube anode.

2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc.) equipped with a suitable high voltage probe. Do not test high voltage by “drawing an arc.” The H.V. Distribution Box has an internal 400MW resistor (bleeder resistor) connected from the high voltage to ground. After power is removed from the instrument the high voltage will discharge through the high voltage bleeder resistor. If the tubes have high voltage after power is removed, then the bleeder resistor is defective or the bleeder ground is disconnected.

3. Discharge the picture tube’s anode at any of the R, G, or B outputs on the H.V. Distribution Box only by (a) first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected, and then (b) touch the other end of the insulated clip lead to the picture tube high voltage distribution box R, G, or B output, using an insulated handle to avoid personal contact with high voltage.

4. Do not spray chemicals on or near this instrument or any of its assemblies.

5. Unless specified otherwise in these service data, clean electrical contracts 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). CAUTION: This is a flammable mixture. Unless

specified otherwise in these service data, lubrication of contacts is not required.

6. Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service data might be equipped.

7. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heatsinks are correctly installed.

8. 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.

9. Use with this instrument only the test fixtures specified in this service data. CAUTION: Do not connect the test fixture ground strap

to any heatsink in this instrument.

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 fieldeffect 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 can anti-static type solder removal device. Some solder removal devices not classified as “antistatic” can generate electrical charges sufficient to damage ES device.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient 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 floor can generate

SERVICING PRECAUTIONS

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 500°F to 600°F.

2. Use an appropriate gauge of resin-core solder composed of 60 parts tin/40 parts lead.

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 (500°F to 600°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 (500°F to 600°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 flows 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 three leads remaining on the circuit board.

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

4. Connect to 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.

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.

Use Solding Iron to Pry Leads

IC Removal/Replacement

Some Sharp unitized chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat 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.

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 Òliftoff,Ó 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 Sharp 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.

3. Bend a small ÒUÓ 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.

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.

Frequency Synthesis (FS) Tuning Systems

1. Always unplug the instrument AC power cord before disconnecting or reconnecting FS tuning system cables and before removing or inserting FS tuning system modules.

2. The FS tuner must never be disconnected from the FS tuning control module while power is applied to the instrument.

3. When troubleshooting intermittent problems that might be caused by defective cable connection(s) to the FS tuning system, remove the instrument AC power as soon as the defective connector is found and finish confirming the bad connection with a continuity test. This procedure will reduce the probability of electrical overstress of the FS system semi-conductor components.

CRIMP AND SOLDER

BARE JUMPER WIRE

Install Jumper Wire and Solder

DEFECTIVE COPPER REMOVED

Insulated Jumper Wire

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.

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 significant 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 identified by a two letter code. The first letter indicates the type and the second letter, the grade of transistor. Chip diodes have a two letter identification 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 flows. 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 • Magnifier

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

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.

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

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.

6. Check with a magnifier 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 figure below.

NOTE:

These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose.

Chip Components

TYPE

GRADE

SOLDER CAPS

TRANSISTOR

CAPACITOR

1ST DIGIT

2ND DIGIT

MULTIPLIER = 1600 = 1.6K

ANODES

MH DIODE

RESISTOR

SOLDER CAPS

COMMON CATHODE

De-Solder

Braid

Soldering

Iron

Soldering

Iron

Soldering

Iron

Soldering

Iron

Soldering

Iron

Soldering

Iron

De-Solder

Braid

Flat-IC

Bridge Solder

De-Solder

Braid

Iron

Wire

Pull

Awl

Polarity Symbol

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

High Voltage limiter circuit operation check.

1. Turn off TV and connect jig as shown in Figure 2. Adjust jig fully counter-clockwise for minimum resistance.

2. Set the AC input to 120V AC and turn on TV.

3. Confirm test pattern on CRT is a usable picture, then slowly adjust jig until the picture disappears and TV shuts down.

4. When the limiter circuit is operating properly, High Voltage will be less than 31.5 kV at 1.5mAwhen TV shuts down.

5. Turn off set immediately after checking circuit operation.

6. Unplug set for one minute to reset shutdown circuit. Remove jig and voltmeter.

TECHNICAL CAUTIONS

TP91

CP16

IP04

Remove RH80 and connect 50KΩVR jig as shown.

FBT

RH80

TP91

POWER/DEFLECTION PWB

RH44

50K½VR

Fig. 2. Deflection/Power P.C.B.

Chassis ground

Deflection P.W.B.

High voltage connector

High impedance H.V. meter

FBT (TH01)

Model: 50NP4 60NP4 Cathode-Ray Tube:

R=P16LFM00RFA(LU)

G=P16LFM00HHA(LU)

B=P16LFM00BMB(EU)

Power Input: 120 volts AC, 60 Hz

Power Consumption: 50NP4 60NP4

Maximum 232W 232W

Operating 206W 206W

Antenna Impedance: 75 Ohm Unbalanced

VHF / UHF / CATV

Receiving Channel: BAND CH

VHF 2~13

UHF 14~69

EXT. Mid (A-5)~(A-1), 4+

CATV Mid. A~I

CATV Super J~W

CATV Hyper (W+1)~(W+28)

Intermediate Frequency: Picture l-F Carrier 45.75 MHz

Sound l-F Carrier 41.25 MHz

Color Sub Carrier 42.17 MHz

Video Input: 1 Volt p-p, 75 Ohm

1 Volt p-p, 75 Ohm (Y)

0.7 Volt p-p, 75 Ohm, (P

, PR)

Video Output: 1 Volt p-p, 75 ohm

Audio Input: 470 mVrms, 47 k Ohm

Stereo Audio Output: 470 mVrms, 1 k Ohm

Audio Output Power:

Front: 12 watts per channel at 10% distortion,

8 ohm Impedance. Max output Ð 15 watts.

Anode Voltage: 30.0 ± 1.5kv (1.27±0.2mA)

Brightness: 50NP4 130cd/m2

60NP4 100cd/m2

Speakers:

2 Woofers - 5 inch (120 mm) round

Dimension: 50NP4 60NP4

Height (in.) 51

Width (in.) 43

Depth (in.) 23

Weight (Ibs.) 145 216

Circuit Board Assemblies:

C.P.T. (B) P.W.B. Terminal P.W.B.

C.P.T. (G) P.W.B. VM P.W.B.

C.P.T. (R) P.W.B. Surround P.W.B.

Audio Out P.W.B. Power/Deflection P.W.B.

2 H P.W.B. Control P.W.B.

Power Supply P.W.B. Control Sub P.W.B.

Signal P.W.B. Sensor Distribution P.W.B.

Sub Deflection P.W.B.

CIRCUIT PROTECTION

CAUTION: Below is an EXAMPLE only. See Replacement Parts List for details. The following symbol near the fuse

indicates fast operation fuse (to be replaced). Fuse ratings appear within the symbol.

Example:

SPECIFICATIONS

RISK OF FIRE - REPLACE FUSE AS MARKED

The rating of fuse F901 is 6.0A - 125V. Replace with the same type fuse for continued protection against fire.

6 A 125V

125V

During Insertion

1. Please refer to direction for insertion as shown in Fig. B (L position). Insert connector until “CLICK” sound is heard.

2. Make sure the connector is pressed right in, so that it has a good contact with the spring.

3. Confirm the contact by pulling the connector slightly. (Don’t pull hard because it may damage the connector).

4. Cover the high voltage output by carefully pushing silicon cover onto it. (Don’t turn the connector). (REMARK)

1. Make sure the silicon cover is covering the high voltage output.

CAUTIONS WHEN CONNECTING / DISCONNECTING THE HV CONNECTOR

Perform the following when the HV connector (anode connector) is removed or inserted for CPT replacement, etc.

Deflection P.W.B.

Silicon cover

Wing

L Position

Wing

FBT

Anode connector

3. Remove the connector slowly by pulling it away from the case.

During Removal

1. Roll out silicon cover from FBT’s contact area slowly .

2. While turning the connector about 90 degrees following the arrow (0 position), push the connector slightly towards the case. (Fig. A)

Fig. A

Fig. B

Silicon Cover

less than 1mm

PUSH

FRONT PANEL CONTROLS

FRONT VIEW

POWER

INPUT

EXIT

f e b a c

d i j

Push open door and pull forward and down

PUSH

POWER

INPUT

EXIT MENU

VOL+VOL-

CH-

CH+

VOL+VOL-

CH-

CH+

SCREEN

ADJ.

POWER

INPUT

EXIT

PUSH

VOL+VOL-

CH-

CH+

NOTES: 1. Your SHARP Projection TV will appear to be turned OFF if there is no video input when VIDEO: 1, 2 or 3 is

selected. Check the Power Light to make sure the TV is turned off when not in use.

2. To see an auto-demonstration of the on-screen displays with HELP text displayed, press and hold the POWER button on the TV set for approximately five seconds. Press the POWER button on the TV again to end the autodemonstration.

a MENU button

This button allows you to enter the MENU, making it possible to set TV features to your preference without using the remote. This button also serves as the ÒSELECTÓ button when in menu mode.

b INPUT/EXIT button

Press this button to select the current antenna source, VIDEO: 1, 2, 3 or alternate antenna source. Your selection is shown in the top right corner of the screen. This button also serves as the EXIT button when in MENU mode.

c CHANNEL selector

Press these buttons until the desired channel appears in the top right corner of the TV screen. These buttons also serve as the cursor down (H) and up (G) buttons when in MENU mode.

d VOLUME level

Press these buttons for your desired sound level. The volume level will be displayed on the TV screen. These buttons also serve as the cursor left (F) and right (E) buttons when in MENU mode.

e POWER button

Press this button to turn the TV on or off.

f POWER light

You will see a red light when the TV is turned on.

g AI (Artificial Intelligence) sensor

The Artificial Intelligence sensor will make automatic picture adjustments depending on the amount of light in the room to give the best picture.

h REMOTE CONTROL sensor

Point your remote at this area when selecting channels, adjusting volume, etc.

i SCREEN ADJUST

Use this button to adjust your picture quality to optimum performance.

j FRONT INPUT JACKS (for VIDEO: 3)

Use these audio/video jacks for a quick hook-up from a camcorder or VCR to instantly view your favorite show or new recording. Press the INPUT button until VIDEO: 3 appears in the top right corner of the TV screen. If you have mono sound, insert the audio cable into the left audio jack.

FRONT PANEL CONTROLS

REAR PANEL JACKS

a Antenna Input/Output

The remote control allows you to switch between two separate 75-Ohm RF antenna inputs, ANT A and ANT B. ANT A input can be displayed as a main picture or sub-picture. ANT B can only be displayed as a main picture. (ANT B cannot be displayed as a sub-picture.) The antenna output labeled ÒTO CONVERTERÓ allows the ANT A connection to pass directly to a different source such as a cable box, only when ANT B is displayed as a main picture.

b Audio/Video Inputs 1 and 2

The INPUT button will step through each video source and antenna source input each time it is pressed. Use the audio and video inputs to connect external devices, such as VCRs, camcorders, laserdisc players, DVD players etc. (If you have mono sound, insert the audio cable into the left audio jack.)

c MONITOR OUT

These jacks provide fixed audio and video signals which are used for recording. Use the S-VIDEO Output for high quality video output.

d AUDIO TO HI-FI Output

These jacks provide variable audio output to a separate stereo amplifier. With this connection, the audio to the stereo can be controlled by the televisionÕs main volume.

e S-VIDEO Inputs 1 and 2

Inputs 1 and 2 provide S-VIDEO (Super Video) jacks for connecting equipment with S-VIDEO output capability.

MONITOR

OUT

INPUT 2

INPUT 1

AUDIO

(MONO)

AUDIO

S-VIDEOS-VIDEO

VIDEO

ANT A

TO CONVERTER

ANT B

AUDIO

(MONO)

S-VIDEO

VIDEO

AUDIO TO HI-FI

NOTE: You may use VIDEO, S-VIDEO, or COMPONENT: Y-PBPRinputs to connect to INPUT 1 and 2, but only one of these

inputs may be used at a time.

NOTE: S-VIDEO Output may be used for recording, only when the input is of S-VIDEO type.

REAR PANEL JACKS

NOTES: 1.

DO NOT connect standard VIDEO or S-VIDEO to Input 1 or 2 when using Y-PBPRinput.

2. When using the Y-PBPRinput jacks, connect your components audio output to the TVÕs Input 1 or 2 Left and Right Audio input jacks.

3. Your component outputs may be labeled Y, B-Y, and R-Y. In this case, connect the components B-Y output to the TVÕs PBinput and the components R-Y output to the TVÕs PRinput.

4. Your component outputs may be labeled Y-CBCR. In this case, connect the component CBoutput to the TVÕs PBinput and the component CRoutput to the TVÕs PRinput.

5. It may be necessary to adjust TINT to obtain optimum picture quality when using the Y-PBPR inputs.

6. To ensure no copyright infringement, the MONITOR OUT output will be abnormal, when using the Y-PBPRjacks.

7. When using the Y-PBPR jacks, PIP sub-picture can not be turned ON. It is not possible to view a Y-PBPRinput while PIP is ON.

f Component: Y-P

BPR

Inputs

Inputs 1 and 2 provide Y-P

BPR

jacks for connecting equipment with this capability, such as a DVD player or Set Top Box.

USING THE REMOTE TO CONTROL VCR FUNCTIONS

Operating the precoded function for your VCR.

This remote is designed to operate different types of VCRs. You must first program the remote to match the remote system of your VCR. (refer to page 18 for pre-codes)

1. Turn ON your VCR.

2. Aim the remote control at the front of your VCR.

3. Press and release the ANALOG mode button.

4. Push ÒSELECTÓ key and ÒCH HÓ key at the same time, then release both buttons, and within 10 seconds after releasing these

buttons, enter the 2 digit code number as shown on page 31.

5. Aim the remote at the VCR and press the POWER button. The remote will turn off your VCR when the correct two digit preset code is entered. When this occurs, the remote control is programmed for your VCR. If the VCR does not turn off, try a different two digit preset code.

6. The remote will now control your VCR.

NOTES:

1. If your VCR cannot be operated after performing the above procedures, your VCRÕs code has not been precoded into the remote.

2. In the unlikely event that your VCR cannot be operated after performing the above procedures, please consult your VCR operating guide.

3. The remote control will remember the codes you have programmed until the batteries are removed from the remote control. After replacing the batteries repeat the entire programming procedure as stated above.

a PRECODED VCR Buttons

These buttons transmit the chosen precoded VCR codes. For some VCRs, you must press the RECORD button twice to record a program.

b EXCLUSIVE TV Buttons

These buttons are for operating the TV.

MY VCR CODE IS:

NOTE: Refer to the instruction manual of the VCR for operation of the buttons exclusively for the VCR.

VCR BRAND. . . . . . . . . . . . . CODE

Akai . . . . . . . . . . . . . . . . . 25, 26, 37

Audio Dynamics . . . . . . . . 15, 22, 30

Broksonic . . . . . . . . . . . . . . . . . . 32

Canon . . . . . . . . . . . . . . . . . . . . . 04

Capehart . . . . . . . . . . . . . . . . . . . 34

Craig . . . . . . . . . . . . . . . . . . . . . . 31

Curtis Mathis . . . . . . . . . . . . . . . . 04

Daewoo . . . . . . . . . . . . . . . . . . . . 34

DBX. . . . . . . . . . . . . . . . . 15, 22, 30

Dynatech . . . . . . . . . . . . . . . . . . . 29

Emerson . . . . . . . . . . . . . 21, 32, 35

Fisher . . . . . . . . . . . . . . . . . . 09, 11

Funai . . . . . . . . . . . . . . . . . . . . . . 29

GE. . . . . . . . . . . . . . . . . . . . . . . . 04

Goldstar. . . . . . . . . . . . . . . . . . . . 24

Hitachi . . . . . . . . . . . . . . . . . . . . . 06

Instant Replay . . . . . . . . . . . . . . . 04

JC Penney . . . . . . . . . 04, 06, 24, 30

JVC . . . . . . . . . . . . . . . . . 15, 41, 42

Kenwood . . . . . . . . . . . . . . . . . . . 15

Lloyds . . . . . . . . . . . . . . . . . . . . . 29

Magnavox . . . . . . . . . . . . 04, 05, 08

Magnin . . . . . . . . . . . . . . . . . . . . 31

Marantz . . . . . . . . . . . . . . . . . . . . 30

Memorex . . . . . . . . . . . . . 04, 24, 29

Minolta . . . . . . . . . . . . . . . . . . . . 06

Mitsubishi. . . . . . . . . . 17, 18, 39, 40

Montgomery Ward . . . . . . . . . 02, 43

Multitech . . . . . . . . . . . . . . . . . . . 29

NEC. . . . . . . . . . . . . . . . . 15, 22, 30

Panasonic . . . . . . . . . . . . . . . 04, 44

Pentax . . . . . . . . . . . . . . . . . . 05, 06

Philco . . . . . . . . . . . . . . . . . . 04, 05

Philips . . . . . . . . . . . . . . . 04, 05, 08

Quasar . . . . . . . . . . . . . . . . . . . . 04

RCA. . . . . . . . . . . . . . . . . 06, 07, 33

Realistic . . . . . . . . . . . . . . 01, 02, 24

Samsung . . . . . . . . . . . . . . . . 23, 31

Scott . . . . . . . . . . . . . . . . . . . . . . 20

Sears . . . . . . . . . . . . . . . . 06, 11, 24

Sharp. . . . . . . . . . . . . . . . 01, 02, 03

Shintom . . . . . . . . . . . . . . . . . . . . 36

Sony . . . . . . . . . . . . . . . . 12, 13, 38

Sound Design . . . . . . . . . . . . . . . 29

Sylvania . . . . . . . . . . . . . . 04, 05, 08

Symphonic. . . . . . . . . . . . . . . . . . 29

Tatung . . . . . . . . . . . . . . . . . . . . . 15

Teac . . . . . . . . . . . . . . . . . . . 15, 29

Teknika . . . . . . . . . . . . . . . . . 27, 29

Thomas . . . . . . . . . . . . . . . . . . . . 29

TMK . . . . . . . . . . . . . . . . . . . . . . 21

Toshiba . . . . . . . . . . . . . . . . . 19, 20

Video Concepts . . . . . . . . . . . . . . 30

Yamaha . . . . . . . . . . . . . . 15, 29, 30

Zenith . . . . . . . . . . . . . . . . . . . . . 16

CABLE BRAND . . . . . . . . . . CODE

Anision . . . . . . . . . . . . . . . . . 07, 08

Cable Star . . . . . . . . . . . . . . . 07, 08

Eagle. . . . . . . . . . . . . . . . . . . . . . 08

Eastern International . . . . . . . . . . 02

General Instrument . . 04, 05, 15, 23,

. . . . . . . . . . . . . . . . . 24, 25, 30, 36

Hamliln . . . . . . . . . . . . . . 12, 13, 34

Jerold . . . . . . . . . . . . 04, 05, 15, 23,

. . . . . . . . . . . . . . . . . 24, 25, 30, 36

Macom . . . . . . . . . . . . . . . . . . . . 37

Magnavox . . . 07, 08, 19, 25, 28, 29,

. . . . . . . . . . . . . . . . . 32, 33, 40, 41

NSC . . . . . . . . . . . . . . . . . . . . . . 09

Oak . . . . . . . . . . . . . . . . . 01, 16, 38

Oak Sigma . . . . . . . . . . . . . . . . . 18

Panasonic . . . . . . . . . . . . . . . 27, 39

Philips . . . . . . 07, 08, 19, 26, 28, 29,

. . . . . . . . . . . . . . . . . 32, 33, 40, 41

Pioneer . . . . . . . . . . . . . . . . . 18, 20

Randtek . . . . . . . . . . . . . . . . . 07, 08

RCA . . . . . . . . . . . . . . . . . . . . . . 27

Regal. . . . . . . . . . . . . . . . . . . 12, 13

Regency . . . . . . . . . . . . . . . . . . . 02

Scientific Atlanta. . . . . . . . 03, 22, 42

Sylvania. . . . . . . . . . . . . . . . . . . . 11

Teknika . . . . . . . . . . . . . . . . . . . . 06

Texscan . . . . . . . . . . . . . . . . . . . . 11

Tocom . . . . . . . . . . . . . . . . . . 17, 21

Unika. . . . . . . . . . . . . . . . . . . . . . 31

Viewstar. . 07, 08, 19, 26, 28, 29, 32,

. . . . . . . . . . . . . . . . . . . . 33, 40, 41

Zenith . . . . . . . . . . . . . . . . . . . . . 14

VCR and CABLE CODES

SET UP

Your SHARP Projection TV has three color projection tubes: one for red, one for green, one for blue. When mixed together in the proper proportion, the output of these three color tubes can produce any color. To produce these colors, however, the beams must be precisely aligned over each other so that the colors can be mixed. The process of aligning these picture beams is called ÒconvergenceÓ.

Over a period of time, the picture tubes can drift out of alignment due to normal bumps and vibrations or moving the TV. If you move your TV, or if, after a time, you notice color rings or halos around objects in the picture, you may want to converge (align) the colors.

Properly converged, the lines appear white, which is actually a combination of the outputs of the three color tubes. The output of the green tube is stationary. The outputs of the red and blue tubes can be adjusted. When properly aligned, the outputs of all three tubes should be directly over each other to produce the white lines.

To simplify convergence, SHARP incorporates a feature to allow you to display a test pattern of 1 horizontal and 1 vertical line at the center of the screen. Simply use the remote control to adjust the red and blue colors to match the green. When properly aligned, the outputs of all three tubes should be directly over each other to produce the white lines.

To enter this adjustment mode, you may also select CONVERGENCE ADJ. from the Set Up menu. However, this will display a message prompting you to press the front panel SCREEN ADJ. button.

NOTES: 1. Only a momentary press of the SCREEN ADJ. button is necessary to enter CONVERGENCE ADJUST mode.

2. The color being adjusted will blink (red or blue) to indicate color you are adjusting.

3. To save your adjustment data into memory, press the front panel SCREEN ADJ. button. If you do NOT wish to save your adjustment data into memory, turn the TV OFF. When the TV is turned ON again, your old convergence data will be restored.

CONVERGENCE ADJ.

Red

SCREEN

ADJ.

Blue

SCREEN

ADJ.

CURSOR

FAV.

CURSOR

FAV.

Press the CURSOR G , H , F , E buttons to move the displayed color up, down, left, or right.

Press MENU to change the color you want to adjust.

Press the front panel SCREEN ADJ. button when adjustment is done. This will save your adjustment into memory.

VIDEO

Select VIDEO to adjust picture settings and improve picture quality.

Use this function to change the contrast between black and white levels in the picture. This adjustment will only affect the picture when OTHER SETTINGS-O.P.C. is OFF. (see page 50)

Use the CURSOR G or H to highlight the function to be adjusted. Press the CURSOR F or E to adjust the function. Press EXIT to quit menu.

NOTE: If PICTURE is selected, you are adjusting the PICTURE. The additional menu items BRIGHT, COLOR, TINT,

and SHARP can be selected and adjusted in the same manner.

Use this function to adjust the level of color in the picture.

Use this function to adjust flesh tones so they appear natural.

Use this function to adjust overall picture brightness.

Use this function to adjust the amount of fine detail in the picture.

When RESET is selected, press SELECT to return video adjustments to factory preset conditions.

PICTURE

COLOR

TINT

BRIGHT

SHARP

RESET

NOTE: 1. It may be necessary to adjust TINT to obtain optimum picture quality when using the COMPONENT VIDEO Y-PBP

input jacks.

2. If you are using the COMPONENT VIDEO input jacks (Y-PBPR) and notice that the TINT and COLOR are abnormal, check to make sure that COMPONENT SET - COLOR SYSTEM is set properly. (see page 41)

Use this function to automatically adjust picture settings to produce the highest quality picture possible.

OTHER SETTINGS

Set Up

CURSOR

FAV

Set UpSet UpISet UpSet UpSet Up

Set Up

CONTRAST

BRIGHTNESS COLOR TINT SHARPNESS RESET ADVANCED

SETTINGS

Custom

Video

Audio

Theater

Info

75% 50% 50%

50%

CURSOR

FAV

Set Up

Set UpSet UpISet UpSet UpSet Up

Set Up

CONTRAST

BRIGHTNESS COLOR TINT SHARPNESS RESET ADVANCED

SETTINGS

Custom

Video

Audio

Theater

Info

98% 50% 50%

50%

MENU TO MENU BAR TO QUIT EXIT

VIDEO

Your SHARP Projection TV has an O.P.C. (Optional Picture Control) function which will automatically adjust picture settings to produce the highest quality picture possible. When O.P.C. is highlighted, press SELECT to turn the O.P.C. on or off.

Use CURSOR G or H to select function.

Press SELECT to select the function setting. When the function has an Ò Ó in the box, it is ON. Use CURSOR E to change COLOR TEMPERATURE or ASPECT RATIO setting. When the function shows a Ò Ò, it is selected.

Use CURSOR E to enter V. POSITION mode, then use CURSOR G or H to adjust V. POSITION. Press EXIT to quit menu or CURSOR F to return to previous menu.

O.P.C. (Optional Picture Control)

When the O.P.C. function is on, the TVsÕ internal computer will perform the following:

1. Automatically monitor and adjust contrast depending on room lighting (sensor is located in the front panel) to produce a more natural picture.

2. Automatically monitor and adjust color levels and maintain natural flesh tones.

3. Automatically compensate for weak or strong TV signals to produce a clear picture.

Turn the O.P.C. function off to control additional OTHER SETTINGS.

FLESH TONE

The FLESH TONE function automatically monitors and adjusts the color to maintain constant color levels even after a program or channel changes. It also maintains natural flesh tones while preserving fidelity of background colors. (This function will automatically set to on and cannot be turned off when the O.P.C. function is ON.) This function does not operate with a COMPONENT: Y-PBPRinput signal.

NOISE REDUCTION

The NOISE REDUCTION function automatically reduces conspicuous noise in the picture without degrading picture quality. (This function will automatically be set to on and cannot be turned off when the O.P.C. function is ON.)

COLOR TEMPERATURE

Set this to WARM for hotter colors with more red, or set to COOL for less intense colors with more blue.

ASPECT RATIO

Adjust this when viewing a COMPONENT: Y-PBPRinput signal.

16:9 - Screen changes to 16:9 aspect ratio. (gray bars visible on top and bottom of screen). HDTV signals are normally 16:9 aspect ratio. 4:3 - Screen changes to 4:3 aspect ratio. (entire screen is filled with video). SDTV and NTSC signals are normally 4:3 aspect ratio.

V. POSITION

Adjust this when viewing a COMPONENT: Y-PBPRsignal. This feature is used to center an HDTV video signal between the top and

bottom gray bars. Adjustable range is -10 (video center is toward bottom of screen) to +10 (video center is toward top of screen).

OTHER

SETTINGS

MENU TO MENU BAR TO QUIT EXIT

CURSOR

100% 50% 50%

50%

PRESS SELECT TO ACTIVATE/DEACTIVATE

FAV.

CURSOR

FAV.

CURSOR

SET UP CUSTOMIZE VIDEO AUDIO THEATER

VIDEO

OTHER SETTINGS

O.P.C.

FLESH TONE NOISE REDUCTION

COLOR TEMPERATURE

COOL WARM

ASPECT RATIO

4:3 16:9

V. POSITION 0

OTHER SETTINGS

O.P.C. FLESH TONE NOISE REDUCTION

COLOR TEMPERATURE

COOL WARM

ASPECT RATIO

4:3 16:9

V. POSITION 0

1. PICTURE

2. BRIGHT

3. COLOR

4. TINT

5. SHARP

6. RESET

7. OTHER SETTINGS

AUDIO

Select AUDIO to adjust the TV to your preference and to improve the sound quality.

AUDIO

This function controls the low frequency audio to all speakers.

Use CURSOR G or H to highlight the function to be adjusted. Press CURSOR F or E to adjust the function. When RESET is highlighted, press SELECT to reset audio settings to factory conditions. Press EXIT to quit menu.

NOTE: If BASS is selected you are adjusting BASS. The additional menu items TREBLE and BALANCE can be selected and

adjusted in the same manner.

This function controls the high frequency audio to all speakers.

This function will control the left to right balance of the TV internal speakers and the AUDIO TO HI FI output.

When RESET is selected, press SELECT to return audio adjustments to factory preset conditions.

BASS

BALANCE

RESET

TREBLE

MENU TO MENU BAR TO QUIT EXIT

CURSOR

72% 50%

1. BASS

2. TREBLE

3. BALANCE

4. RESET

5. OTHER SETTINGS

90% 50%

FAV.

CURSOR

SET UP CUSTOMIZE VIDEO AUDIO THEATER SET UP CUSTOMIZE VIDEO AUDIO THEATER

1. BASS

2. TREBLE

3. BALANCE

4. RESET

5. OTHER SETTINGS

Use this function to improve the sound performance of your TV, depending on listening conditions.

OTHER SETTINGS

AUDIO

Use OTHER SETTINGS to improve the sound performance of your TV, depending on listening conditions.

MTS MODE

Multi-Channel Television Sound will allow you to select STEREO (a stereo broadcast), MONO (monaural sound) used when receiving a weak stereo broadcast or SAP (second audio program) which may be a secondary language, weather report, etc. The sources received will be displayed at the top center edge of the TV. The source you select will be displayed above the sources received. See the example below for each selection when both stereo and second audio are received (monaural is always received).

Press CURSOR G or H to highlight a function. Press SELECT to change the function setting. When the function has a Ò Ó in the box it is ON, when it has a Ò Ò it is selected.

OTHER

SETTINGS

MENU TO MENU BAR TO QUIT EXIT

CURSOR

√

PRESS SELECT TO ACTIVATE/DEACTIVATE

72% 50%

1. BASS

2. TREBLE

3. BALANCE

4. RESET

5. ADVANCED SETTINGS

FAV.

SELECT

CURSOR

SET UP CUSTOMIZE VIDEO AUDIO THEATER

AUDIO

PRESS SELECT TO ACTIVATE/DEACTIVATE

AUDIO

ADVANCED SETTINGS

STEREO

MONO SECOND AUDIO PROGRAM

INTERNAL SPEAKERS AUTO NOISE CANCEL LOUDNESS PERFECT VOLUME

ADVANCED SETTINGS

STEREO MONO SECOND AUDIO PROGRAM

INTERNAL SPEAKERS AUTO NOISE CANCEL LOUDNESS

PERFECT VOLUME

INTERNAL SPEAKERS

This function is useful if you prefer to use only speakers from a separate stereo system.

AUTO NOISE CANCEL

This function eliminates the noise between stations. If a channel is tuned and is noisy, this function will automatically eliminate the audio for that channel.

LOUDNESS

This function will improve the quality of both low and high frequency sounds when listening at low volume levels.

CONSTANT VOLUME

This function will automatically adjust volume so each channel has the same average volume level.

ANT A 31

NEWS

10:00 PM

ANT A 31

NEWS

10:00 PM

STEREO SELECTED

SAP SELECTED

MONO SELECTED

STEREO

ST/SA

ANT A 31

NEWS

10:00 PM

SAP

ST/SA

MONO

SERVICE ADJUSTMENTS

1. I2C ADJUSTMENT..............................................................................................................................................25

1-1. Memory Initialization (SDTV AND HDTV) ..............................................................................................25

1-2. Comb Filter Operation Check ................................................................................................................35

1-3. Audio Operation Check ..........................................................................................................................35

1-3-1. Tone Control Check......................................................................................................................35

1-3-2. Constant Volume Operation Check..............................................................................................35

1-3-3. SRS Check ..................................................................................................................................35

1-4. High Voltage Adjustment ........................................................................................................................36

2. FINAL ASSEMBLY ADJUSTMENT (Adjustment should be according to below order) ..............................36

2-1. Cut Off ....................................................................................................................................................36

2-2. DCU Phase Data Setting (Progressive and HD mode)..........................................................................36

2-3. Horizontal Position Adjustment (Coarse)................................................................................................37

2-4. Raster Tilt (Deflection Yoke)....................................................................................................................37

2-5. Beam Alignment......................................................................................................................................37

2-6. Raster Position........................................................................................................................................38

2-7. Vertical Size (Progressive and HD mode) ..............................................................................................38

2-8. Horizontal Size (Progressive and HD mode)..........................................................................................38

2-9. Beam Form ............................................................................................................................................39

2-10. Lens Focus..............................................................................................................................................39

2-11. Static Focus ............................................................................................................................................39

2-12. Digital Convergence (Progressive and HD mode) ..................................................................................42

2-13-1. Raster Position ..........................................................................................................................43

2-13-2. Convergence Point ....................................................................................................................44

2-13. Blue Defocus ..........................................................................................................................................45

2-14. White Balance ........................................................................................................................................45

2-15. Sub Brightness ........................................................................................................................................45

2-16. Horizontal Position (Progressive and HD mode)....................................................................................46

2-17. Scanning Area Check ................................................................................................................................

3. ADJUSTMENT POINT........................................................................................................................................47

3-1. CRT (R)(G)(B), Cabinet Locations..........................................................................................................47

3-2. Main Chassis (Signal P.W.B.) ................................................................................................................48

3-3. Main Chassis (Power/Deflection P.W.B.) ................................................................................................49

3-4. Power Supply P.W.B...............................................................................................................................50

3-5. CPT (R)(G)(B), Focus Pack, Control P.W.B. ..........................................................................................51

*IMPORTANT

For many of the above adjustments, it is necessary to have an HDTV (1080i) signal generator, SDTV (480P) signal genrator, as well as the usual NTSC (480i) signal generator. Sharp recognizes that few companies offer HDTV or SDTV signal generators and that the cost of these generators is sometimes prohibited. For this reason, we suggest the use of a set-top-box for HDTV and SDTV adjustments. Usually, there is a switch on the set-top-box which enables it to output HDTV (1080i) or SDTV (480P) signals even with no input. In this case, the sync is automatically detected by the TV (at the Y-P

BPR

Inputs on the rear panel).

1. I2C ADJUSTMENT

1.1 Memory Initialization Adjustment Procedure (1) Press and hold the INPUT key on Control Panel and then Power ON to access I2C adjustment mode. (2) Receive signal on main picture. (NTSC, SDTV or HDTV).

Some menu pages have I2C adjustments for SDTV and HDTV. The set will automatically allow you to set these items only when a SDTV or HDTV signal is input to the COMPONENT jacks on the back of the TV.

See table below.

(3) Check the OSD according to the I2C data on page 28~34, using CURSOR G, H on Remote Control.

All data should be exactly as stated on page 28~34 exept adjustable data (*). *: Adjustable Data Others: Fixed Data (be careful not to change)

(4) Press MENU key to exit I2C ADJUSTMENT mode.

NOTE: (1) If there is a different value than shown in table above, for fixed data, adjust it using CURSOR F, E

(only in this case).

(2) When exchanging microprocessor and TV is turned on for first time, it requires initialization of

Memory Initial of I2C adjustment menu.

SIGNAL ASPECT fH COLOR HDTV 1080i 16:9 33.75kHz Y PBP HDTV 720P 16:9 45kHz Y PBP SDTV 480P 4:3 31.5kHz Y CBC NTSC 480i 4:3 15.75kHz Y CBC

NTSC NTSC

ANT A 10

ABCD

10:00PM

PIP ANT A 12

STEREO

ST/SA

SLEEP 0:15

SLEEP

TIMER

Audio

Broadcast

Audio Selected

Main Picture Source

CHANNEL ID

Time

Sub-Picture Source

PIP

SURF/B

SURF/

BACK

(5) HDTV: 1080i 16x9 (33.75kHz) 1080i 4x3 (33.75kHz)

16x9

1080i

33.75kHz

16x9

1080i

33.75kHz

Insertion panel to top and bottom.

810 Lines

1080 Lines

4x3

1080i

33.75kHz

1080 Lines

(6) HDTV: 1080i 16x9 (33.75kHz) 1080i 4x3 (33.75kHz)

16x9

1080i

33.75kHz

(7) HDTV: 720P 16x9 (45kHz) 480P 4x3 (31.5kHz)

16x9

720P

45kHz

16x9

480P

31.5kHz

Insertion panel to top and bottom.

360 Lines

480 Lines

4x3

480P

33.75kHz

480 Lines

(8) HDTV: 720P 16x9 (45kHz) 480P 4x3 (31.5kHz)

16x9

720P

45kHz

B. SURF/STROBE MODE NTSC 480P 4x3 (31.5kHz)

Main

Picture

480 Lines

360 Lines

SUB

Main

Picture

Sub

Picture

NTSC

Picture

Moving Picture

480 Lines

360 Lines

STROBE

I2C Parameter List (1) Adjust Mode OSD Press [POWER] + [INPUT] keys of front control panel.

*: ADJUSTABLE ITEM

EXIT I2C ADJUST MODE POWER on/off.

ADJUST MODE

SUB BRT SERVICE

DEF RESET V/P RESET 3DYC RESET FLEX RESET DSP RESET CCD RESET FACT RESET MEMORY INITIAL

l l

l l l l l l l l

SUB BRT 80

(OSD OFF)

Press key

Press

key

Select SERVICE and Press key

ADJUST MODE

TA1300 315 H POSI 40 FLEX CONT 47 VD-POS 3F UPD64081 DYGA 9 DCGA 6 VAPGA 5 VAPIN 0B YHCOR 0

ADJUST MODE

TA1300 3375 H POSI 40 FLEX CONT 47 VD-POS 3F UPD64081 DYGA 9 DCGA 6 VAPGA 5 VAPIN 0B YHCOR 0

31.5kHz Mode

33.75kHz Mode

ADJUST MODE

TA1270-M TINT (TV) 3C TOFFO (TV) 00 TOFQ (TV) 00 SUB CNT 0F SUB CLR 1B

ADJUST MODE

TA1270-S TINT (TV) 3C TOFFO (TV) 00 TOFQ (TV) 00 SUB CNT 0F SUB CLR 1B

POWER+INPUT

CURSOR,MENU

Select SUB BRIGHT and Press key

FLEX CONT NTSC

39 HHPF1 00 41 V-CRG 00 42 H-CRG 00 43 V-ENH 00 44 H-ENH 00 96 YVHENH 0B

100 CVHENH 12

FLEX CONT 480i

39 HHPF1 00 41 V-CRG 00 42 H-CRG 00 43 V-ENH 02 44 H-ENH 00 96 YVHENH 0B

100 CVHENH 12

FLEX CONT 480P

39 HHPF1 00 41 V-CRG 00 42 H-CRG 00 43 V-ENH 02 44 H-ENH 00 96 YVHENH 0B

100 CVHENH 12

480i Mode

480P Mode

FLEX CONT 1080i

39 HHPF1 00 41 V-CRG 00 42 H-CRG 00 43 V-ENH 00 44 H-ENH 00 96 YVHENH 00

100 CVHENH 12

FLEX CONT 720P

39 HHPF1 00 41 V-CRG 00 42 H-CRG 00 43 V-ENH 02 44 H-ENH 00 96 YVHENH 1B

100 CVHENH 12

1080i Mode

720P Mode

CURSOR,MENU

FLEX CONT NTSC

71 YV-ENH 00 79 CV-ENH 00 87 YH-ENH 07 94 CH-ENH 0F 66 YV-DSB 00 75 CV-DSB 00 82 YH-DSB 00 90 CH-DSB 00 68 YV-CLP 00 84 YH-CLP 00

FLEX CONT 480i

71 YV-ENH 00 79 CV-ENH 00 87 YH-ENH 07 94 CH-ENH 0F 66 YV-DSB 00 75 CV-DSB 00 82 YH-DSB 00 90 CH-DSB 00 68 YV-CLP 00 84 YH-CLP 00

FLEX CONT 480P

71 YV-ENH 00 79 CV-ENH 00 87 YH-ENH 07 94 CH-ENH 0F 66 YV-DSB 00 75 CV-DSB 00 82 YH-DSB 00 90 CH-DSB 00 68 YV-CLP 00 84 YH-CLP 00

480i Mode

480P Mode

G , H

NTSC Mode

FLEX CONT 1080i

71 YV-ENH 00 79 CV-ENH 00 87 YH-ENH 00 94 CH-ENH 0F 66 YV-DSB 00 75 CV-DSB 00 82 YH-DSB 00 90 CH-DSB 00 68 YV-CLP 00 84 YH-CLP 00

FLEX CONT 720P

71 YV-ENH 00 79 CV-ENH 00 87 YH-ENH 07 94 CH-ENH 0F 66 YV-DSB 00 75 CV-DSB 00 82 YH-DSB 00 90 CH-DSB 00 68 YV-CLP 00 84 YH-CLP 00

1080i Mode

720P Mode

G , H

FLEX CONT NTSC

97 YV-NLP 00 98 YH-NLP 0A Y-LMT FF 83 YH-FRQ 00 91 CH-FRQ 02 70 YV-LTI 00 78 CV-CTI 00 86 YH-LTI 01 93 CH-CTI 01

FLEX CONT 480i

97 YV-NLP 00 98 YH-NLP 0A Y-LMT FF 83 YH-FRQ 00 91 CH-FRQ 02 70 YV-LTI 00 78 CV-CTI 00 86 YH-LTI 01 93 CH-CTI 01

FLEX CONT 480P

97 YV-NLP 00 98 YH-NLP 0A Y-LMT FF 83 YH-FRQ 00 91 CH-FRQ 02 70 YV-LTI 00 78 CV-CTI 00 86 YH-LTI 01 93 CH-CTI 01

480i Mode

480P Mode

FLEX CONT 1080i

97 YV-NLP 00 98 YH-NLP 0A Y-LMT FF 83 YH-FRQ 00 91 CH-FRQ 02 70 YV-LTI 00 78 CV-CTI 00 86 YH-LTI 00 93 CH-CTI 01

FLEX CONT 720P

97 YV-NLP 00 98 YH-NLP 0A Y-LMT FF 83 YH-FRQ 00 91 CH-FRQ 02 70 YV-LTI 00 78 CV-CTI 00 86 YH-LTI 01 93 CH-CTI 01

1080i Mode

720P Mode

CURSOR,MENU

FLEX CONT NTSC