Good day, I have an LG dlp projector, model:bs275, which does not respond even if a press the menu button. It only displays no source found in reverse order. How do i solve this problem.

Reset instructions according to this
https://factory-reset.com/wiki/Optoma_Service_Menu
Optoma Service Menu Instructions Most of our Optoma Service Menu methods require the use of an original remote, typically you can not do it with just the buttons on the front of the set. If you no longer have your remote or have damaged it, we recommend that you purchase a Optoma Remote before trying to enter the service menu.
Method 1

1. Press simultaneously {UP} & {ENTER} buttons twice.
2. Press simultaneously {LEFT} & {ENTER} buttons twice.
3. A Service Menu will be displayed
   1. Then to access the Full Service Menu: Press the {UP}, {LEFT} & {DOWN} buttons once.
4. To exit, turn the Projector Off.

Method 2

1. Press the {UP} {UP} {LEFT} {LEFT} buttons.

Method 3

1. Press the {POWER} {LEFT} {LEFT} {MENU} buttons.

Method 4

1. Press simultaneously the {RE-SYNC} {ENTER} {SOURCE} buttons on the Projector.

Method 5

1. Press the {POWER} button.
2. It will show: "Power Off" or "Picture Mute".
3. Then press the {LEFT} button 8 times slowly.

Method 6

1. Press {MENU} {6} {1} {9} {MENU} buttons.
2. To exit the Service Menu: Press {MENU} {6} {1} {9}

1. Press the Power button so that a picture is projected onto the screen
2. Press the Menu button to display the "Main Menu", and then press the F or G button to select "Option"
3. Press the Enter button to display the "Option" menu, and then press the 5 or 6 button to select "Lamp Runtime"
4. Press and hold the Enter button for approximately 3 seconds
5. The "Lamp Runtime" will change to "Time Reset [Power Off]"
6. Turn off the power and disconnect the power cord

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How to Reset Panasonic Projector Lamp Timer Projector Lamp Services

Try this, it works on older LG TV models:

Put the projector on. While holding down the Menu key on the projector, press and hold down the Menu button on the remote. Keep both buttons pressed for a count of at least 5 seconds.

When the Service Menu pops up, release the Menu button on the remote control first and then the one on the projector after.

Now you're in to the service menu, you need to find out which button on the remote brings up the Lamp Timer Reset function. This is where you're going to have to do a bit of trial and error. With the TVs, the remote button was the Mute key. There isn't a Mute key on the projector remote, so try the Lamp key first. If that doesn't work then try some other buttons. Here's the method.

While holding down the Enter/OK on the projector, press and hold the Lamp key for five second. If this works then the lamp timer reset box should appear. Release the remote button first, followed by the unit button.

Press Enter/OK on the remote to reset the lamp timer. If there's an On Screen Prompt to confirm, press Enter again.

Press Exit on the remote to come out of the menus.

Warning: Don't reset or change any other functions. The service menu isn't the place to be tinkering around with stuff you don't understand.

You need a replacement color wheel (that is the name of the broken plastic disc, likely glass). I have been unable to source one. Recommend you buy a used projector with a bad lamp, usually less than $100 on eBay and just put your good lamp into it. Keep your old one for parts.

Press the Windows Button + P.
This should detect your secondary display automatically.

The blinking green light means the unit is either Powering On (Warming Up) or Powering Off (Cooling Down).

Powering On the Projector
1. Remove the lens cap.
2. Securely connect the power cord and signal cable. When connected, the ON/STANDBY LED will turn Amber.
3. Turn on the lamp by pressing " " button either on the top of the projector or on the remote. The ON/STANDBY LED will now turn Green. The startup screen will display in approximately 10 seconds. The first time you use the projector, you can select your preferred language from quick menu after the startup screen displays.
4. Turn on and connect the source that you want to display on the screen (computer, notebook, video player, etc). The projector will detect the source automatically. If not, push menu button and go to "SETUP". Make sure that the "Source Lock" has been set to "Off". If you connect multiple sources at the same time, press the "SOURCE" button on the control panel or direct source keys on the remote control to switch between inputs.

If you are still unable to get the unit to turn on, try unplugging it for 10 minutes and plugging it back in. If it still ceases to work, contact Optoma here: http://www.optomausa.com/rma_policy.asp
Their Technical Support line is 1-888-887-5001

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

hi,
check ur remotes battery first. replace it if needed. u can check the remote easily, is it working or not.point the remote to any digital camera and press any button. if it is working u can see a white light. IR rays can see through digital cameras. u can use do mobile camera also.
ok

1.Press the MENU button to display the menu screen, and
then press the F or G button to select the OPTION menu.
2. Press the ENTER button, and then press the F or G button
to select LAMP RUNTIME.
3. Press and hold the ENTER button for approximately
3 seconds. The confirmation screen, “LAMP RUNTIME
RESET.” is displayed and select OK.
4. Turn off the power.
�� This will reset the cumulative usage time for the lamp
unit to zero.
***Here you go and best of luck!***

clock and phase are off. go into menu and reset the settings to factory default.

I have just reset my lamp! Disconnect all cables but the power, switch on it will search for a source, the lamp timer message will display press exit untill it will give you a message to press menu to reset the lamp timer, it will give you a option to press left or right to reset. I used the buttons on the projector not the remote.