A

While the lamp lights at power on, input check is performed at CPU (IC801) pin 19. No check is performed for 3 seconds after power turn-on. Check starts after 3 seconds. If an H signal continues to be monitored at CPU (IC801) pin 19 for 1 second, an abnormal condition is detected. If the temperature of the lamp power source heat sink reaches 80 C , an H signal is fed to CPU (IC801) pin 19. If the lamp does not light or is extinguished suddenly, an H signal is fed to CPU (IC801) pin 19.

Ac

Fig. 2 Lamp power source block diagram Fig. 2 Lamp power source block diagram The metal halide lamp consists of argon, mercury and halogen compounds enclosed in its luminous tube. fppclshows the spectral distribution of this lamp. At the center of an arc discharge, halogen compounds are dissociated into metal atoms and halogen atoms, the metal being excited so that it emits a metal - specific spectrum. At the periphery of the arc discharge, metal atoms and halogen atoms are bonded again....

Always Check For The Correct Specifications In The Parts List Especially For Critical Component Marked A Special

All resistance values are indicated in ohms K 1,000. M 1,000,000. 2. Read wattage, material and tolerance codes following the chart. 1. For capacitors identified with-) h values less than 1 are expressed in F , values more than 2. For capacitors (electrolytic) identified with -0-values are expressed in i F. Voltage and waveforms were taken using a video color bar signal (1V p-p). Line voltage is 240V. * s tiifk q imno QAAA v wilayco vvci c iar oi i will r a i hyi i-ii i ijjoudt i o

Cd

1 PomAiio 19 rvi r- PfifiS ' frt i. i ivmvvy lamp uuvci ncici iv 2. Remove 3 front screws, 4 rear screws and 5 side screws of the top cabinet. 3. Grip the two sides, pull the top cabinet upward and remove. Remove 7 screws and disconnect the Shield board. Remove 2 screws and disconnect the Shield board TM.

Ceramic 100p K 50v

-Tolerance Symbols Less than 10PF A Not specified D 0.5PF R +0.25-OPF More than 10PF A Not specified D 0.5 H 3 L 15 P +100-0 U +75-10 X +40-20 B 0.1 F 1 J 5 M 20 Q +30-10 V +20-10 Y +150-10 C 0.25 G 2 K 10 N 30 T +50-10 W +100-10 Z +80-20 ' Rated value P pico farad,U Micro farad MT - POLYE3T Metallized Polyester MT- POLYPRO Metallized Polypropylene MT-COMPO Metallized Cmposite NP- ELECT Non - polarized Electrolytic OS-SOLID Aluminium Solid with Organic Semiconductive Electrolytic DL-ELECT...

Et

PRODUCT SAFETY NOTICE THE COMPONENTS DESIGNATED J3Y A MARK ( A ) IN THIS SCHEMATIC DIAGRAM DESIGNATE CuiviPGNENTS WHOSE VALUES ARE OF SPECIAL SiGNiFiCANCt TO rriGuUCr S i-ei y'. SHGULu ANY COMPONENT DESIGNATED BY A MARK NEED TO BE REPLACED, USE ONLY THE PART DESIGNATED IN THE PARTS LIST. DO NOT DEVIATE FROM THE RESISTANCE, WATTAGE AND VOLTAGE RATINGS SHOWN. 1. When replacing parts on circuit boards, clamp the lead wires to terminals before soldering. 2. When replacing high wattage resistors on...

How To Check The Lamp Illumination Time

Checking procedure With the projector in operating mode (synchronize picture view condition), press the LEVEL+ or - button for 30 seconds four red alphabets will appear on the screen for 5 seconds. 8 X (B X 4096 + M X 256 + F X 16 + L) _ Note If the RESET button is pressed, the data of illumination time will be initialized. 3. Alphabet number conversion table A 0 B 1 C 2 D 3 E 4 F 5 G 6 H 7 I 8 J 9 K 10 L 11 M 12 N 13 0 14 P 15 8 X (1 X 4096 + 12 X 256 + 5 X 16+ 11)

I

K Projector operates A1 Temperature monltoi_ k Projector operates A1 Temperature monltoi_ CPU (IC801) performs input check at pin 33 (Input port) once the projector Is connected to AC outlet, regardless of AC power on off status. If an L signal continues to be monitored at pin 33 for 1 second, the CPU detects an abnormal condition. If temperatures around the lamp and liquid crystal panels reach 80 C and 55 C , respectively, the CPU feeds an L signal to pin 33. Once tripped, the temperature...

Ii

After long periods (many years) of use, dust and particles and other contamination will accumulate on the LCD panel Ass'y (LCD panel and polarizing plate), lens, mirror, etc. and the picture will tend to darken and color blurring may occur. When this occurs, cleaning of the inside of the unit will be necessary. For dust and light accumulation of contamination, use an air spray to remove the dust. If the contamination cannot be removed by air spray, disassembly and cleaning of the unit will be...

Info

Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a A mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out bv the mark. Note Part order must contain Service Ref. No.,Part No.,and descriptions. Read description in the...

Lamp Cover

Disconnect the AC cord from the projector and push the lock release lever A in the direction of the arrow. (The locking lever B emerges to disengage the lamp cover lock.) 2. Remove 2 screws and disconnect the lamp cover. (Note The lamp cover cannot be disconnected unless the lock is disengaged in step 1 above.) 3. Remove 2 screws and pull out the lamp assembly by gripping the handle. 5. Tighten 4 screws to secure the lamp cover to the lamp assembly. 6. Push the locking lever B in the direction...

Lcd Panel Replacement

Remove 2 screws and disconnect 2 polarizing glass plates. 2.Remove 2 screws, disconnect the liquid crystal panel and replace it. For adjusting focus, first adjust the G (green) liquid crystal panel unit as the standard reference. Adjust the red panel unit position so that the bottom of the screen will not go out of focus by zooming. Then bring the focus of top and bottom sections of the B (blue) and R (red) screens Into sharp focus by adjusting the position of their panel units. input a...

R Video Adjustment2

Chassis Ground CH2 TP48R Chassis Ground INPUT SIGNAL NTSC 100 White video DIGITAL CONTROL CONT Center ADJUSTMENT 1. By using VR4062 adjust TP48R (B) level voltage for same as TP48G (A) level voltage R G B COMMON CENTER VOLTAGE ADJUSTMENTS PICTURE CONDITION Auto position R-COMMON Cover the G and B panel to cut the light transit. G-COMMON Cover the R and B panel to cut the light transit. B-COMMON Cover the R and G panel to cut the light transit. R-COMMON Adjust VR4331 to get the darkness picture....

Resister

A General B Non flammable Z Low noise Other Temperature coefficient A 0.05 B 0.1 C 0.25 D 0.5 F 1 G 2 J 5 K 10 M 20 P +5-15 Rated value, ohms K 1,000, M 1,000,000 OXIDE-MT Oxide Metal Film IF THERE IS A PROBLEM IN THE LAMP BALLAST UNIT, ONLY USE THESE REPLACEMENT PARTS FOR BEST PERFORMANCE AND SAFETY.

Select Video Modeav

ADJUSTMENT By using VR4001 (R-DC Level Adj.) and VR4041 (B-DC Level Adj.), adjust to be balanced Gray Scale. It turns the mode from the normal mode to the SERVICE MODE that pushing VOLME + key and SETTING key on the projector at a same time is continued during 3 seconds. When replacement the electrical parts, readjust IIC data, if necessary. Data for each item are adjusted by VOLUME + key and LEVEL + - key on the remote control unit. VOLUME + key and VOLUME - key change the adjustment item, and...

Stereo Audio Output Jack

Used to connect a external stereo amp. and VIDEO MONITOR OUTPUT JACK Permits video connection to a monitor. AUDIO MONITOR OUTPUT JACKS Permits audio connection to a monitor. The removable air filter prevents dust from accumulating on the surface of the projection lens and projection mirror. Should the air filter become clogged with dust particles, it will reduce the cooling fan's effectiveness and may result in internal heat built up and reduce the life of the projection lamp. The air filter...

Svhs

Horizontal horizonta sandcastle > flyback output HA input input east-west EHT tracking drive vertical current drive and over-voltage output sawtooth reference output protection 15)vertical drive A vertical drive B serial data clock input output input horizontal horizonta sandcastle > flyback output HA input input east-west EHT tracking drive vertical current drive and over-voltage output sawtooth reference output protection luminance f reference output crystal second P* crystal input NOTE...

Temperature Warning Indicator

The TEMPERATURE WARNING INDICATOR flashes red when the internal temperature of the projector exceeds the normal temperature. Possible causes for the temperature warning may be 1. Ventilation slots at the front or rear of the projector are blocked. In such an event, reposition the projector so that ventilation slots are not obstructed. 2. Air filter is clogged with dust particles. Remove dust from the air filter by following instructions in the Air Filter Care and Cleaning section above. If...

U

The chart below Is a troubleshooting guide on projector circuits and describes general procedure for locating trouble spots. Please refer to the chart for unit maintenance and Inspection. , The Standaby +13V Is normal. Failures are suspected at * AC DC Converter of power source unit Is lamp monitor circuit operating (with lamp monitor (READY) LED off) Standby +13V power source circuit failure Is suspected. Check power source signal unit circuits and related connections T901, D616, Q606, IC001,...

Safety Precautions

WARNING The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter transformer and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is identified with the line in the schematic diagram. For continued product safety and protection of personnel injury, servicing should be made with qualified personnel. The following precautions must be observed 1. An isolation transformer should be...

Product Safety Notice

Product safety should be considered when a component replacement is made in any area of the projector. Components indicated by a mark ( A ) in the parts list and the schematic diagram designate components in which safety can be of special significance. It is, therefore, particularly recommended that the replacement of these parts must be made by exactly the same parts. SERVICE PERSONNEL - WARNING Eye Damage May Result From Directly Viewing The Light Produced By The Lamp Used In This Equipment....

1

First make a rough adjustment using a video signal and then fine adjust by using a computer signal. Image Movement According to Adjustment Screw Turning Direction 1. Simultaneously turning the convergence adjustment screw C clockwise and B counterclockwise turns the image clockwise. (Fig. 1) Simultaneously turning adjustment screw C counterclockwise and B clockwise turns the image counterclockwise. (Fig. 2) 2. Simultaneously turning adjustment screws B and C...

Lamp Ballast Board

Remove 3 screws then pull out the cover and remove. 2. Remove 4 screws on the corner of the lamp ballast board 3. Remove the lamp ballast board from the case. Remove 9 screws and pull the chassis upward to remove. Remove 3 screws and disconnect the fan. 12 Remove 4 screws securing the lens and pull it forward to remove. 12 Remove 4 screws securing the lens and pull it forward to remove. 1. Remove 7 screws and disconnect the air duct. 2. Remove 3 screws and disconnect the fan.

Service Manual

Safety Principles And Functions Of The Liquid Crystal Projector 3 10 Lamp Replacement 15 Convergence Adjustments 24 Chassis Electrical Parts List 33 Cabinet amp Optical Parts List 51 IC Internal Block Diagrams 56 IC'Tr Package Outline Drawings 63 Troubleshooting Chart 64 Parts Address List 68 Take Notice Of Schematic Diagrams' 71 Voltage and Waveforms 73 Schematic Diagrams 80 Block Diagrams amp B Distribution Diagrams 100 Component and Testpoint Locations 104