Question about Compaq Microportable 1400 Multimedia Projector

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Looking for chip code for the MP1400 power supply......

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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SOURCE: Won't power off when pressing power button, just goes to standby mode

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

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SOURCE: Won't power off when pressing power button, just goes to standby mode

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

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Replace bulb compaq mp1400

reset the lamp hours in the on-screen menu.

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Feb 26, 2014 | Compaq Mp1400 Projector

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Sony VPL FX50 Won't power up. Bulb appears to be fine.

an electrical issue (power supply area) is correct. check manufacturer for part replacement info would be the best move.

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Power on button not working

there is something wrong in other parts of the power supply
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Status light blinks seven times

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you need to reset the timer chip by using a Programmer
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Our company supply this chip with 0 hours USD15
We supply original projector lamp,bulb,parts,Lcd panel,Lens,DMD chip,color wheel,motherboard,powersupply,ballast... with high quality and competitive price.
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have a nice day!
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Jan 31, 2014 | NEC MultiSync MT1065 Multimedia Projector

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Turn on, green after a few seconds it shuts down, and blinks ....

this would be the bulb or the ballast that powers the bulb ether witch will need to be fixed. I would take it to a local shop to have it looked at.

please be considerate and rate and leave feedback for your free answer.

Apr 28, 2010 | InFocus LP 530 Multimedia Projector

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HI. I have boxlight xd-9m. Picture was fine, then a blue flash of light from the unit. Now both dead. Replaced bulb, but still no green power indicator comes on. Ideas? Thanks

the power supply has blown. unfortunately, there are no parts available for this model, so check the power supply board for scorch marks or blown parts and replace as necessary.

Nov 20, 2009 | Boxlight XD 10m Multimedia Projector

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Hi there -- I have an infocus sp5000 project and i think the fuse has blown -- how can i replace it?

there is a fuse on the power supply, right on the power cord socket, but you need to remove the cover. but test this first: are there any leds on? if yes, it's not the fuse. check the lamp door and the filter cover on the bottom. it could also be the lamp is bad, the ballast is blown, the fans have stopped, the thermistor is blown, etc. if there are no leds, it could be that the power supply is bad. if you want to tackle this: remove the 4 bottom screws, then lift the top from the back, carefully remove the ribbon cable fron the main board (slide the cable locks on either side of the cable towards the front of the projector to unlock it first), unplug the wires in the front, and slide the lid forward over the lens. remove the main board off of the top (removing the 3 ribbon cables, all other wires, the cable nuts off of the back, and a few screws). the power supply is on the back side. if the power supply is bad, you can buy one from an infocus authorized service center (check the website).

Jul 17, 2009 | InFocus SP5000 Home Theater Projector,...

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Infocus projector power supply parts

you won't find schematics for them. infocus had their boards made by someone else who now no longer makes boards. it's usually the caps drying out that causes power problems.

Nov 03, 2008 | NEC VT670 Multimedia Projector

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Infocus projector power supply dead

the caps dry out. look for bulging caps. you won't find a schematic for the ps boards. infocus had someone else make them. the problem seems more like a overheating issue. as for the other one with the "just the fans", check the colorwheel.

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3 Answers


The main problem is the power supply. In detail, the output capacitor of the power supply causes the problem. I guess, Toshiba or Lite ON didn't consider the aging effect of the output capacitor. You should replace the output capacitor to fix the problem. (In some sites, they recommend to replace the power supply, but don't do that. The new power supply costs over $200 and the capacitor will be less than 50cents.) If you disassemble TDP-S8, in the power supply, you can find the electrolytic capacitor 3300uF/10V. You should replace this with any electrolytic capacitor with the range of 2000uF~4000uF/10~16V. You can download the service manual from some websites (I've paid $5 for this) then you can disassemble the projector. Of course, you need to do soldering to replace the capacitor. I've fixed this problem yesterday and it took about 4 hours for me. Good Luck~~!!

Mar 19, 2008 | Toshiba TDP-S8 Multimedia Projector

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