Question about NEC LT 260 Multimedia Projector

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Is there a way to reset the lamp hours with an internal switch on the NEC LT260 PCB ? For instance with a dipswitch, jumper, or removing the backup battery?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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ceck
  • 1 Answer

SOURCE: NEC LT260's shutting down

I think I have solved this issue with my LT260K. I too had shut downs after 5 minutes of operation. It roughly followed a replacement of the bulb. I repaired stereos in the 70's and 80's, so I was not going to let the projector get the best of me without a tear down. I cleaned the fan blades, checked their operation. I checked the continuity of the thermostat on top of the bulb bracket, but found no apparent failures. I did find a possible loose connector in the middle of the projector as it seemed loose as I was disassembling the unit (see 1st picture). 7c58d4f.jpgThen I checked for cracked or burned areas on the PCB's. During this I scanned as much of the solder joints as I could. In the 'old' days, the power supply area could get hot and make cold solder joints. I found what appeared to be heat damaged solder joints on the auxiliary power board (Lamp power). This is the one that is back right of the projector opposite the power switch. It is a vertical board that solders into the horizontal bulb power board. I resoldered these and I am up and running. USE CAUTION, I would leave this to a trained professional to repair. This requires major disassembly.18d84c8.jpg
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6a430ba.jpg

Posted on Jul 16, 2009

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informatica
  • 1114 Answers

SOURCE: Resetting Lamp Hours Procedure On Nec-MT-1075

Hi - You can download the manual by clicking the link underlined in blue below:

Nec-MT-1075

See page E-55:

76e04b4.jpg

As in the note replacing the lamp automatically clears the lamp hours.

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Posted on Sep 05, 2008

  • 1 Answer

SOURCE: nec lt260

Clean optocoupler under pcb 4554B on color disc wheel.
Dusty on this part make not good sincronice with dlp panel.Good luck.

Posted on Oct 02, 2008

projdoc
  • 2237 Answers

SOURCE: NEC VT 480, replaced new lamp ,still low brightness.

if you remove the lamp, inside the lamp housing you will see a refraction (fly-eye) lens. these evenly distribute the lamp light. the one on the other side from the one you see (there are always 2 lenses) is probably burnt and needs replacing (a common problem with lcd projectors). you will have to send it in to nec. in many of their projectors, both lenses are in one assembly.

Posted on Sep 11, 2009

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1 Answer

Lamp hour reset NEC MT1060


The NEC MT1060 lamp hours is stored in an EEPROM chip built into the lamp. As soon as you put in a new lamp (MT60LP or MT60LPS), the hours will be reset. If you remove and put back in an old lamp, the unit will see the hours on that lamp. Thus if the lamp has reached 2100 hours, the projector will remain in standby. See page 53 of the manual for the replacement and reset information.

Most of the manuals for the NEC projectors are available here: http://www.nec-display.com/dl/en/pj_manual/lineup.html . The direct link to the manual for the MT1060 is http://www.nec-display.com/dl/en/pj_manual/mt1065.html .

I hope this helps.

Cindy Wells

May 24, 2016 | NEC MT1060 Multimedia Projector

1 Answer

Password for bios


It depends where the machine came from. It may have been put on by the shop that sold it, or a previous owner.

Sadly, I cannot find an online manual for this motherboard (it should be a MCP61PM-GM motherboard), which would lead to how to reset the BIOS. Have a look around the motherboad closely, and see if you can find a switch, or even remove the power and the battery for at least 24 hours.

This is some info I found that may help you:
"Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop.
Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
Removing the CMOS Battery The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time.
Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system."

Jul 31, 2011 | eMachines ET1161-05 PC Desktop

2 Answers

I need a pasword.when i enter the bois there need a pasword.so help me how 2 break the pasword


Hi Good day!! turn off your PC Remove your CMOS battery (2032 3volts) within 1minute and then put it back, turn on your PC now your bios password should be remove.

Oct 19, 2010 | MSI Microstar KT6 Delta (MS-6590)...

1 Answer

Removing bios password of toshiba portege 4010


HOPE THIS HELPS...BE SURE AND READ ALL BEFORE STARTING...GOOD LUCK

WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Read your manufacturers documentation for the BIOS setting before you begin typing in passwords.
Award BIOS backdoor passwords:ALFAROME BIOSTAR KDD ZAAADA
ALLy CONCAT Lkwpeter ZBAAACA
aLLy CONDO LKWPETER ZJAAADC
aLLY Condo PINT 01322222
ALLY d8on pint 589589
aPAf djonet SER 589721
_award HLT SKY_FOX 595595
AWARD_SW J64 SYXZ 598598
AWARD?SW J256 syxz
AWARD SW J262 shift + syxz
AWARD PW j332 TTPTHA
AWKWARD j322
awkward

AMI BIOS Backdoor Passwords:AMI BIOS PASSWORD HEWITT RAND
AMI?SW AMI_SW LKWPETER CONDO

Phoenix BIOS Backdoor Passwords:phoenix PHOENIX CMOS BIOS

Misc. Common PasswordsALFAROME BIOSTAR biostar biosstar
CMOS cmos LKWPETER lkwpeter
setup SETUP Syxz Wodj

Other BIOS Passwords by ManufacturerManufacturer Password

VOBIS & IBM merlin
Dell Dell
Biostar Biostar
Compaq Compaq
Enox xo11nE
Epox central
Freetech Posterie
IWill iwill
Jetway spooml
Packard Bell bell9
QDI QDI
Siemens SKY_FOX
TMC BIGO
Toshiba Toshiba

Toshiba BIOS

Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot
IBM Aptiva BIOS

Press both mouse buttons repeatedly during the boot
Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings

Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop.

Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
Removing the CMOS Battery

The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time.

Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system.

Oct 16, 2010 | Toshiba Computers & Internet

2 Answers

How can i remov the hp compaq nx6310 laptop bois password


If you didn't set it or do not know it then the entire laptop will have to be dismantled to remove the cmos battery for one hour to cancel that password.There is no easier way.

Oct 16, 2010 | HP Compaq nx6310 Notebook

1 Answer

Friend gave me an hp pavillion zv5000 that they couldnt get to work. it needs the power on password and they dont have it. i am a pc tech so i have no problem with doing any kind of laptop surgery. would...


Method 1 : Removing the CMOS Battery
The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time.
Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all.For eg: IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set.

Method 2 : Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings

Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop.
Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.

Method 3 : 
Jumping the Solder Beads on the CMOS

It is also possible to reset the CMOS by connecting or "jumping" specific solder beads on the chipset. There are too many chipsets to do a breakdown of which points to jump on individual chipsets, and the location of these solder beads can vary by manufacturer, so please check your computer and motherboard documentation for details. This technique is not recommended for the inexperienced and should be only be used as a "last ditch" effort.

Method 4 : 
Password cracking software

The following software can be used to either crack or reset the BIOS on many chipsets. If your PC is locked with a BIOS administrator password that will not allow access to the floppy drive, these utilities may not work. Also, since these utilities do not come from the manufacturer, use them cautiously and at your own risk.

Cmos password recovery tools 3.1
!BIOS
RemPass
KILLCMOS


Note : Download this tool.

http://rs80l34.rapidshare.com/files/68277812/11204651/unlock6.zip

It's HP confidential tools to reset BIOS.

Dec 26, 2009 | HP Pavilion zv5000 Notebook

1 Answer

LAMP not switching on NEC HT410


I had the exact same problem and solved it. After calling NEC tech and getting no help, my son and I decided to:

  • Remove, clean and reset lamp.
  • Completely clean (with compressed air) system.

And it worked. Here's what we did.

  • Removed lamp and cleaned with compressed air (in cans).
  • Used two cans of air to completely remove all internal dust. In our case long over due.
  • Reinstalled lamp and reset meter. (To reset: Turn on machine, wait 2 minutes or so, then hold down the "Help" button right next to the infrared sensor on the front of the machine).

Works fine now! Dont know if it was technical solution but solved it for us! Good Luck!

Jan 25, 2009 | NEC HT410 Multimedia Projector

1 Answer

Security code for nec lt 260


The procedure is the same for LT220, LT240 and LT260.

Here is the user manual

LT260/LT240/LT220 User’s Manual

Sep 09, 2008 | NEC LT 260K Multimedia Projector

1 Answer

Can't get pass the blackscreen password


That is the BIOS password





Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings
Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop. Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
Removing the CMOS Battery
The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time. Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system

Aug 15, 2008 | Computers & Internet

1 Answer

Nec lt260


Clean optocoupler under pcb 4554B on color disc wheel.
Dusty on this part make not good sincronice with dlp panel.Good luck.

Jun 28, 2008 | NEC LT 260K Multimedia Projector

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