Does nothing just red dot lit - Tasco NV200 Monocular

mother board is faulty

Check all the parts you replaced, if you replaced a CHIP, make sure all the pins area in the right spots

If the round red light you describe is a circle of dots that indicates a developer change is due. This needs to be done by a technician but the machine should work fine without doing the developer change.

Hi - Please try taking the batteries out of the remote and replacing them. That may help... if you still experience issues, please email me at tina-AT-suddenlink-DOT-com for assistance.

Replace the LED or bulb in the reticle. This LED or bulb illuminate the military dot and/or cross-hairs to Red. Red on Green. stewbison

the head in jam so u have to check that the head is working properly or not .

From : Er,XXX

The snowy dots and dots are typically from a poor signal going into the TV.

If there are colored pixels that stay lit all the time (like a red pixel and never goes away) and for any input, that’s called a stuck pixel.

A stuck pixel may be caused by a bad Y-Sustain, Y-drives, Z-sustain, and or a bad plasma panel.

Good Luck.

Check the charging system to see that the alternator is charging.

take out the battery or batteries.
turn the scope on to full power.
place the battery or batteries in the scope.
just start the battery compartment cover onto the threads.
watch through scope as you slowly tighten cover.
If the dot lights up stop turning cover or experiment with continuing to thread on cover.

That dot represent lit (stuck) red sub-pixel and if it only one that is not considerable as failure due to dead pixel warranty but you can try to solve this problem with software called screen fix. It possible that during exploitation that red dot dissapear.
Good luck