Question about Compaq Microportable 1400 Multimedia Projector
Hi, I have an MP1400 which has a blown power supply. The problem is, I can't find the code on the switch-mode controller chip as the top has exploded off! The chip is the 8-pin SOP chip on the small daughterboard which stands off of the power supply module. This board has two optoisolaters on, and the chip in question is on the right. If possible, I also need the codes for all the transistors and passive devices around that area. I also need the code for the 3-pin TO202 type device marked "Q2" on the main board of the same PSU module? Or, does anyone know where I could buy a service manual for this projector? Thanks in advance, Ash Evans.
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Posted on Jan 02, 2017
With most projectors you have to press the power button twice to confirm that you want to turn it off. When you press it the first time it waits for a bit and then turns itself back on assuming you hit the power button on accident.
Posted on Jul 23, 2007
Also, note that you need to wait a short time before pressing the power button the second time. When you press the button the first time, the projector wil display a screen saying it is going into standby. In about 5 seconds, the screen will go blank. Pres the power button the second time right after the screen goes blank.
Posted on Oct 02, 2007
check this out and let me know if it looks the same as yours because I'm pretty sure this is it
Click on the link
If so, then it is part number AO4407
which you should be able to get from that website
Let me know if you have any other questions that I didn't answer.
Posted on Apr 25, 2008
1:Remove the lamp from the projector. Ensure that it has no cracks, discoloration or "smoky" appearance.
2:Try removing and reseating the lamp, or to try another lamp.
3:Reset your lamp timer. Most projectors have no way of knowing if you physically have replaced your lamp or moved it out . They rely on the user resetting the lamp timer
4:Pull the lamp back out of the unit, give is a brisk shake and reseat the lamp. Occasionally there is some buildup on the lamp contacts or filament during manufacturing.
5:Are the input and output vents blocked or obstructed in any way? That could cause overheating problem and what you see with your projector is one of it's symptoms .
6:Are the filters dirty or clogged? Most manufacturers will recommend filter cleaning on a monthly basis depending on usage .After cleaning the filter always remember to reset your projector .
7:Remove any extension cords, power strips and/or surge suppressors. Many current model projectors will not even try to ignite the lamp if they detect drops or fluctuation in voltage supplied to the unit. This is a safety feature to reduce stress on the lamp.
PLEASE RATE !
Posted on Apr 13, 2010
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