3 Top Cover Assystay Rfilter F
1 Remove the five screws T , and take out the TOP COVER ASSY. 2 Remove the two screws 2 , and take out the STAY R. 3 Remove the FILTER F. Note Refer to P7-4 and P7-5. 1 Hold both sides of the set with both hands at Part A. Apply a force to Part B in the direction of the arrow diagonally toward the top of the set . In this case, the force being applied should be as low as possible in order not to damage the switch. 2 Confirm that the claw of C each side surface has been disengaged. 3 Remove the...
20 Handlebracket Handleshaft Handlespeakerspeaker Holder Filter Sfilter R
1 Remove the two screws T , and take out the two 3 Remove the one screw 2 , and take out the BRACKET HANDLE . SPEAKER HOLDER and the SPEAKER. 2 Remove the two SHAFT HANDLE , and then take out the HANDLE.
1 Outline software descriptions
This is the PC control software for servicing adjustments to be conducted during the replacement of the MAIN PWB, LCEP PWB, VIDEO-DEC PWB, or the LCD panel for the LCD projector, the VT440 VT540 Series. This software is used for the adjustment of Sub-Brightness Sub-Contrast, Flicker, and Ghost, and also the modification of Lamp Usage Time, Filter Usage Time, Panel Usage Time, Projector Usage Time, and Language Selection. In addition, it enables reading and writing of various data, such as the...
2 Equipment to be used and operating environments
Software for servicing adjustments Ser_99vt.exe Ver1.0 Attached files V-T Data, etc. Personal computer Enabled to actuate Windows95 or Windows3.1, and the serial port COM1 or COM2 or COM3 is of the D-SUB9pin. Video signal generator Auto-adjustment type Enabled to generate an output of NTSC split color bars 7 colors Component signal generator Auto-adjustment type Enabled to generate an output of 15kHz Component Video 60Hz split color bars 7 colors Serial cable Accessory for the PJ main unit...
5 Troubleshooting
This section helps you resolve problems you may encounter while setting up or using the projector. No light in High-Bright mode Blinking green in Eco mode The message Please wait a little appears The projector retries 3 times at an interval of 15 sec for max. 45 sec 3 minutes after lamp is turned on in Eco mode Fixed at High-Bright mode. Lamp mode can be changed on the menu Lamp has reached its end of life 2000 hours or over Steady red High-Bright mode Steady orange Eco mode Message appears on...
Important Information
Please read this manual carefully before using your NEC MultiSync VT440 VT540 Projector and keep the manual handy for future reference. Your serial number is located under the name plate label on the right side of your MultiSync VT440 VT540. Record it here To turn off main power, be sure to remove the A plug from power outlet. The power outlet socket should be installed as near to the equipment as possible, and should be easily accessible. TO PREVENT SHOCK, DO NOT OPEN THE CABINET. NO...
Better Reputation Better Profit
Before servicing this chassis, it is important that the service technician read and follow the Safety Precautions and Product Safety Notice in this Service Manual. SHOCK HAZARD - Use an isolation transformer when servicing. SAFETY USERS TROUBLE CIRCUIT CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. This symbol warns the user that uninsulated voltage within the unit may have sufficient magnitude...