13 RS232C communication

(1) Turn off the projector and computer power supplies and connect with the RS-232C cable. (2) Turn on the computer power supply and, after the computer has started up, turn on the projector power supply. Consist of header (7 bytes) + command data (6 bytes). BE + EF + 03 + 06 + 00 + CRC_low + CRC_high. CRC_low Lower byte of CRC flag for command data. CRC_high Upper byte of CRC flag for command data. Read projector internal setup value. Requesting projector status (Get command) (1) Send the...

2 Specifications

Video Analog 0.7Vp-p, 75Q terminator H V. sync. TTL level (positive negative) Composite sync. TTL level D-sub 15-pin shrink jack 200mVrms, 47kQ (max. 3.0Vp-p) Stereo mini jack Brightness signal 1.0Vp-p, 75 Q terminator Color signal 0.286Vp-p (NTSC, burst signal), 75 Q terminator 0.300Vp-p (PAL SECAM, burst signal), 75 Q terminator Mini DIN 4-pin jack 200mVrms, 50kQ (max. 3.0Vp-p) RCA jack Video Analog 0.7Vp-p, 75Q output impedance (positive) H V. sync. TTL level (positive negative) Composite...

3 Names of each part Parts names

INPUT Button LAMP Indicator TEMP Indicator POWER Indicator RESET Button MENU Button COMPONENT VIDEO Y Terminal Cb Pb Terminal Cr Pr Terminal Remote Control Sensor RGB IN 1 Terminal RGB IN 2 Terminal CONTROL Terminal RGB OUT Terminal USB Terminal Remote Control Sensor RGB IN 1 Terminal RGB IN 2 Terminal CONTROL Terminal RGB OUT Terminal USB Terminal STANDBY ON Button KEYSTONE Button Button Used to operate the mouse shift function . MENU Button MAGNIFY Button MAGNIFY Button MAGNIFY Button Used to...

41 Before adjusting

Before starting adjustment, warm up the projector for about 10 minutes.(Blank white) 2. Set Zoom Wide to Max. And project an image a distance of more than 40 inches and set the normal at WHISPER mode. 3. Normalizing the video adjustment. (Press the MENU button of the Remote control transmitter to display the Setup menu, and then press the RESET button. And select the DEFAULT .) *note The setup menu is not displayed on with no signal. 4. Perform all adjustments from the Adjustment menu. Perform...

45 White balance adjustment Preparations

Perform these adjustments after the NRSH adjustment described in Section 4-4. 2. Reset gamma correction before adjustment. Place the cursor on GAMMA in the Adjustment menu, press the RESET key and select DEFAULT . Now press the RESET key again and press the MGNIFY-OFF button of the Remote control transmitter for 5 seconds or more (the confirming to MICRO reset menu will appear). 2. BRIGHT and CONTRAST set to MAX in the Setup menu. 3. Place the cursor on Slide Show in the Adjustment menu A D ,...

Before Replacing the LCD Lens Prism

You should not replace separately the parts of the liquid crystal LCD Lens Prism because it works properly only when used together. Therefore, regarding these parts, you can either replace part, LCD Lens Prism assembly, or send the whole unit LCD Lens Prism assembly back to HITACHI, where we will replace the malfunctioning part, recondition the device and send it back to you. In that case please contact our distributor.

Lamp Life

The image will become darker, and hues will become weaker, after a lamp has been used for a long period of time. Replace the lamp if the LAMP indicator is red, or the CHANGE THE LAMP message appears when the projector is switched ON. NOTE The LAMP indicator is also red when the lamp unit reaches high temperature. Before replacing the lamp, switch power OFF, wait approximately 20 minutes, and switch power ON again. If the LAMP indicator is still red, replace...

Message table Onscreen display

The following messages are displayed on the screen. CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER Lamp has 1,700 hours on it and may need to be changed. CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER THE POWER WILL TURN OFF AFTER 20 Hr. Lamp has 1,979 hours on it. See Reset the lamp timer Blinking of CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER THE POWER WILL TURN OFF AFTER 0 Hr. When the lamp has 2,000 hours or more on it, the message will blink, and the...

Note

Operation cannot be guaranteed when the projector receives an undefined command or data. Provide an interval of at least 40ms between the response code and any other code. The projector outputs test data when the power supply is switched ON, and when the lamp is lit. Ignore this data. Commands are not accepted during warm-up. (Example of Return) 00 00 01 00 (Normal) (Cover-error) 04 00 05 00 (Temp-error) (Air flow-error)

Replacing the Lamp

Switch the projector OFF, remove the power cord from the power outlet, and wait at least 45 minutes for the unit to cool. 3. Check that the projector has cooled sufficiently, and gently turn it upside down. 4. Loosen the two screws as shown in the diagram, and remove the lamp cover. 5. Loosen the three screws, and gently remove the lamp while holding the grips. Touching the inside of the lamp case may result in uneven coloring. 6. Install the new lamp and tighten the three screws firmly. Also...

Resetting the Lamp Timer

Reset the lamp timer after replacing the lamp. When the lamp has been replaced after the THE POWER WILL TURN OFF AFTER 0 Hr message is displayed, complete the following operation within ten minutes of switching power ON. The power will be turned off automatically in over 10 minutes. 1. Switch power ON, and press the RESET button, for approximately three seconds. The 'LAMP xxxx hr' message will appear on the lamp timer on the bottom of the screen. 2. Press the MENU button on the remote control...

Service Warning

When replace the lamp, to avoid burns to your fingers. The lamp becomes too hot. 2. Never touch the lamp bulb with a finger or anything else. Never drop it or give it a shock. They may cause bursting of the bulb. 3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of power unit (main), when turn on the projector. 4. Do not touch the exhaust fan, during operation. 5. The LCD module assembly is likely to be damaged. If replacing to the LCD...

O

Keep individual cables away from positions to mount optical units as shown in the diagram so that the cables will not be caught in when optical units are mounted. Clamp 6260, 6261, CNTH, CNBAR and CNPOW cables using PAS1. Provide extra length on the 6260 cable by making a loop, etc., at the clamp. As regards the CNTH cable, provide some extra length if there is any as mentioned above (in order to prevent the sagged cable caused by extra length from touching the front bezel and lens). Pass...

Check points at trouble shooting

'Picture is not displayed when .the RGB signal is input . I812 +14V IV22 CD +17V I102 +6V I841 +4.3V I812 +14V IV22 CD +17V I102 +6V I841 +4.3V Picture is not displayed when the VIDEO, S-VIDEO, Component Signal is input Picture is not displayed when the VIDEO, S-VIDEO, Component Signal is input VIDEO (Composite) S-VIDEO (Y) S-VIDEO (C) Component (Y) Component (Cb) Component (Cr) PWB assembly Drive LCD module assembly

8 Connector connection diagram

Mp8620 Igniter

Check the connection between the CN102 and the CN104. Because it is impossible to check it afterward Pass this through a notch of the PWB holder. Pass this through a notch of the PWB holder. Let the CNPOW and TSW cables cross each other so that the TSW will not approach the primary side power circuit . Install the PWB assembly Sensor upon completion of the work shown below. Install the PWB assembly Sensor upon completion of the work shown below. Connect CNTH to E950 connector of PWB _ Affix...

12 Replacement Parts list

PRODUCT SAFETY NOTE Components marked with a A have special characteristics important to safety. Before replacing any of there components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don't degrade the safety of the projector through improper servicing. POWER SUPPLY CORD UL CSA TYPE W CORE POWER SUPPLY CORD CONTINENTAL TYPE W CORE RGB-D CABLE 15PIN MALE TO 15 PIN MALE