Sorry if I'm duplicating a thread here. If so, please point me in the right direction and close this. I did see a big thread on the InFocus projectors, but it was 100+ posts, and I don't see anyway to search... plus it seemed to be more comparision/info orientated.

Now that I've rabbled on a preface to this post, here's the details on my conundrum:

I've been using the InFocus IN72 projector for about a year and 1/2 now without any issues. This past weekend I used it Saturday night, turned it off, went to power it on Sunday and I get no response. No LED, no fan, no nothing.

I contacted their technical support and they advised I try a different cord, a different outlet, reseating the lamp, and a new lamp. None of this worked, though I didn't try the last suggestion as I don't see how that would matter. According to the documentation, a bad lamp should result in blinking red LED.

I reported this back to tech support and they informed me that the only other option would be to send the unit in for repair. As it is out of warranty, this will cost $399 + $30 shipping.

I'm an IT guy myself, and to me, this sounds like a blown fuse, or a bad powersupply.

Anyone have experience with replacing either of these in this projector? Am I crazy to attempt this?

I really don't want to drop $400 into this especially when I'll be up to buy a new lamp for it in 3 months or so anyways. They quotes me $400 for a new lamp (total service charge = $800!), but I'm sure I could find it cheaper elsewhere.

Thanks for any input, this is my first projector.

well being that your out of warranty .
you have nothing to lose.

The Infocus IN Series Had A one amp fuse problem.

I never replaced it myself but I have heard it was a HARD fuse needing to be soldered.
If I was a betting man I would say you could diagnose the problem yourself with ease.

good luck .

Murph:)

If I was a betting man I would say you could diagnose the problem yourself with ease.

good luck .

Murph:)

Agreed! and thanks for the vote of confidence. I'm hoping its a blown fuse; going to crack her open tonight and take a peak.

Of course, if anyone has any personal experience, I welcome their input still.

UPDATE

We opened her up this evening and the hardwired fuse definitely looked blown. Took a trip down to radioshack, got a fuse and a fuse connector cradle thing, removed blown fuse manually with pliers (READ: ripped it off PCB board), and soldered in new fuse.

It looks a bit ghetto, but...

Success!

And InFocus wanted to charge me $400?

I'd be happy to offer any assistance to others facing this problem. Not that its an easy fix, but if I could do it, so can you.

Murph - you were spot on with that advice.

UPDATE

We opened her up this evening and the hardwired fuse definitely looked blown. Took a trip down to radioshack, got a fuse and a fuse connector cradle thing, removed blown fuse manually with pliers (READ: ripped it off PCB board), and soldered in new fuse.

It looks a bit ghetto, but...

Success!

And InFocus wanted to charge me $400?

I'd be happy to offer any assistance to others facing this problem. Not that its an easy fix, but if I could do it, so can you.

Murph - you were spot on with that advice.

good to hear the news .:D

and the savings around the holiday is a blessing.


cheers.


Murph:)

dmastri,
Congrats on the successful repair!
It's always a good feeling when you can repair something like that yourself. Not just in $ saved, but they feeling of accomplishment of trying and succeeeding.
I think my in72 has the 1A fuse, but it hasn't failed yet. Might as well get the parts ahead of time. What part numbers did you use? Looking at Radio Shack's web site the 2A fuses come in slow-blow and fast-acting.
Did you get a fuse holder thats inline between some cable or a fuse holder that mounts on the circuit board?

I've had my in72 for almost a year now. It is mounted upside down. The fuse just blew. I replaced it with the same 1 amp fuse. Everything looked OK, fans going etc., but it ran for an hour and it blew again. What I am reading here is that my problem can likely be solved by using a 2 amp fuse instead? Is that so and is that OK?

I have a ceiling mounted IN72 I purchased last October ($499 @ BB) which now has ~1000 hours on the bulb. Just following Thanksgiving day, we discoverd that the PJ was dead.

I replaced the blown 1A fuse with a 2A Fast-Blo fuse (Radio Shack #270-1052) & Inline fuse holder (Radio Shack #270-1238 ) and have had no ill effects (we've got another ~100 hours on the bulb following the repair).

For me the hardest part was getting the case open ;)

Oh, I did give myself a bit of a scare when I was testing my repair job, it seems there's an interlock switch that requires the bulb door cover to be in place before the bulb gets any power.

Thanks. I had the same experience with the case and the bulb door. Rather than trying to rip out the old fuse I just soldered a wired fuse holder to fuse socket. Easier for me to change the fuse next time. OK, I replaced with a 2 amp fuse.

Ok, since I have had the same problem as everyone else and I did change the fuse to a 2A wich did have the IN72 running for the night, watch the unit for at least 2 hours turned it off for the night. The next day it wouldn't turn back on no power, check the fuse, wasn't blown. Whenever I plug in the power cord the fans would kick on for a second the piwerlight would briefly light up and it pwould make a small squaking sound like it was getting power then just shut off and would not light up again. I have checked everything I could to make sure it wasn't grounding out but I am now at a loss.

Thanks for any help you guys can give.

my IN72 went out and I had opened it up...

the fuse looks bad, there is just one fuse in the system correct?

I am going to snap it off and replace it tonight

my IN72 went out and I had opened it up...

the fuse looks bad, there is just one fuse in the system correct?

I am going to snap it off and replace it tonight

cut the the fused out and it was in fact burnt...

replaced it just now and the projector works..
I had tried to work infocus but they were not helpful, they just tried to sell me refurb

I hope that other who read this can benefit as I have

Ok, since I have had the same problem as everyone else and I did change the fuse to a 2A wich did have the IN72 running for the night, watch the unit for at least 2 hours turned it off for the night. The next day it wouldn't turn back on no power, check the fuse, wasn't blown. Whenever I plug in the power cord the fans would kick on for a second the piwerlight would briefly light up and it pwould make a small squaking sound like it was getting power then just shut off and would not light up again. I have checked everything I could to make sure it wasn't grounding out but I am now at a loss.

Thanks for any help you guys can give.

what is the current status?

I am having the same issue with my infocus in72 projector, can someone please give me the steps to successfully fix the problem, so i can show my boyfriend that i am not stupid! It is as if there is a power issue...we sent it off to the geek squad bc infocus would have charged us a insane amont, and we wanted to see what was wrong with it, and best buys geek squad said they would charge us $500 to fix it, there is a power problem with the mother board, but i am sure changing the fuse will be all that it needs, if not then idk!? please someone tell me the instructions to change this fuse on my own!:)

I have the same problem and I'm pissed.... I've had the projector for 16 months and it has less than 50 hours of use. I found this thread and got excited, but it was no help. After opening my unit up, I have 2 fuses - a 2 amp (nicely labelled as if it didn't take 30 minutes and a soldering iron to change it) and a 5 amp hidden on the main power board near the power jack. Both fuses are fine... I see no blown caps etc... so it's all back together, and I'll be damned if I'm giving them $400 to fix this thing. I'll never buy another product from InFocus again. I'll give them a call tomorrow during normal business hours and give them a shot at making this right, but I don't have my hopes up. Their website goes on and on about their 24/7 tech support but if you call outside regular Mon-Fri business hours it's a $35 charge. The night and weekend techs must be awesome to command such a bonus.

Mark. :mad:

Yeah all they wanted was for me to ship it back and give them the $400.... so that projector is either going in my parts box or Ebay. I decided to upgrade a little earlier than I'd expected and got a Sanyo Z2000.

anyone here have schematic diagram of the In72 for future blowout reference?

Hello, I just wanted to drop a line to thank the AVS members who posted this thread and add my 2 cents. I too was victim to the sorry about your luck attitude of infocus when my projector suddenly stoped working. I did exactly as many of you have done and tore apart the unit (after my 3 different calls to IF). I found the 1A fuse blown after only 400 hours of total use. So no biggie. replaced it with a 1.5A fuse, and a fuse holder. Well, after about 3 hours... Dead again. So I read online that most failures are in the inverted position. (ceiling mount). I figure as many have heat must be the enemy. I removed the side infocus covers and carefully cut out the black plastic end panels. my temp gun reads 20 deg f less out put temp and the air flow is much stronger. Take 3...invite family and friends over, mid movie and zap. Nothing. So I replace the fuse with a 2.0A slow blow. This last a little longer. I get about 5 hours and zap again. So i figure i will just have to keep replacing the fuse on my 800 dollar paper weight. But the plot thickens... While upgrading my surround with a new hdmi switching receiver (onkyo 805) I discover I have a serious buzzing problem. The problem disappears when I unplug the hdmi to the projector. Having a background in pro audio I know that i have a ground loop issue. So i have 2 options. remove the sheild drain from the hdmi cable or remover the ground lug on the infocus. So I remove the ground lug terminal on the power wire of the projector and woohoo. no more buzz. And believe me I was very happy to have a low noise floor again. But I also solved the fuse popping issue as well by complete accident. As after I removed the ground lug I have never blow another fuse and now have close to 1200 hours on the projector. It also fixed some odd problems that I was having with coloration of the the lower right corner of the screen and a light flickering problem I was having. And FYI all my audio and video equipment runs through a monster power rack mount conditioner so I am fairly confident that the problems I was having weren't caused by "dirty power". during testing for the buzz I even removed the conditioner temporally to make sure it wasn't bad with no change. So I hope this helps someone out there in the same boat. Good luck! -Bill

Anyone have any suggestions on the location of this 1A fuse? I have my old IN72 that I'm trying to repair after a year (just to try) and cannot find it... I know this is an old old thread, but I'm experiencing what I think is the same problem... Unit powers up for a brief second then nothing...

I found the 5A fuse and it tested fine..

Any help would be appreciated... Pictures even better.. ha..

Guys I just a smilar issue with my projector, where I hear a small sound when I plug in the power cable into the wall. I then hear the projector fan for a second, with the light blinking once, and then it shuts down. Does ANYONE know how to fix this? I certainly don't want to get ripped off from Infocus support to get this fixed.

Please let me know what options I have. I tried opening it up, but couldn't figure out how to get in there to see if the fuse was blown or something. Anyone have any diagrams, pics or something?

Looking forward to any guidance here...

The previous problems reported in this thread that were attributed to a bad fuse involved projectors that were dead, no response of any kind. Your projector is still alive, therefore, it is not a fuse. There are NO diagrams for Infocus projectors.

As to what is the problem with your projector, there are several possibilities.

A bad lamp
A bad lamp ballast
A bad fan controller

These are the most common, a bad lamp can be checked by substituting a known good lamp. Any other possibilities are not repairable except by replacing the bad assembly, not a cheap prospect.

Hello

I have the same problem with IN76. My problem is I do not see how to open it. Where is the fuse? I remove all the screw I can see but I do not see how to open it. I have easily access to the front part where you change the bulb. I was thinking that fuse may be close to the rear 110/220 plug. Could you give me advices or a link to pictures ?

Thank you in advance

What problem are you having? If the projector has ANY signs of life, even just a let LED, the problem will NOT be a fuse. The only fuse in these projectors is on the power supply board and if it goes, the entire projector is dead.

Hello

I have the same problem with IN76. My problem is I do not see how to open it. Where is the fuse? I remove all the screw I can see but I do not see how to open it. I have easily access to the front part where you change the bulb. I was thinking that fuse may be close to the rear 110/220 plug. Could you give me advices or a link to pictures ?

Thank you in advance

Hello

The projector was switch off (green light on) when I was unplugging the HDMI connector. While unplugging the HDMI cable the green light came off likewise a shortcut occured. Now I have no light at all. I must say that if I let the projector plugged few hours some part on top right seems to come lightly warmer than the rest of the cover. As It is almost 2 and 3/4 years old I want to be sure that it is not a simple fuse to replace before to sent it to repair. That's why I am asking how to open and get inside to have a look.

Hi again.
I succeeded to open it. Unfortunately the fuse of the main power board is OK. What I can say is when I plug the cable the lamp comes red for 1/100th of secondes then comes off. I can hear some light noise at the same time then no light at all and no noise at all.

Do you have an idea of the damage and on your point of view it is still worst to send to repair?

You're saying that when you plug in the power cable, the led comes on briefly and then goes out?

Yes that's what I observe. When I plug in the power cable, the led comes on briefly (red color) and then goes out !
Does it speak to you?

That is very unusual. It could be a bad power supply but I really think that there is a fault on the main board. Either way, it's a job for a service center and depending on what they find, may not be worth the cost repair. Certainly not if it's the main board.

I checked my parts supplier and the power supply is about $230 and the main board is about $750. Not sure what the service center would charge you, but there it is.

Thank you for your input. I will ask for a repair quote.
Meanwhile if I have to buy a new one can you tell me if an infocus X10 would provide a similar quality knowing that it is much recent and even if it is at a lower price than when I bought my in76?

Hi gesc9207,

I've had both the IN76 and X10, and the X10 clearly represents an upgrade IMO. Contrast is comparable, but the X10 features a manual iris (great feature), is noticeably quieter, and of course has more resolution. The problem is that it is discontinued and finding a new one is probably not going to be easy.

I have bring back to my reseller. Their technician will check it and then tell me it is worth to ask a quote. According to their experience most if not all IN76 they sold came back with problems during or after end of warranty. There is no more repair center in Switzerland and we must send it in Danemark. All quotes for repaire are prohibitives. Finally with a so bad repair service I do not think that I will buy again an Infocus brand.

For JeffKB what do you mean by an upgrade "IMO" <---?

For JeffKB what do you mean by an upgrade "IMO" <---?
IMO = In My Opinion

Power supply and fuse problems are unfortunately a common occurence with the IN7x platform. I had to replace the power supply on my IN76 at the 3 year mark.

The problem is that all projector mfgs seem to have their issues from time to time - some models are more problematic than others. The combination of high heat and a small enclosure causes a lot of stress. Lots of moving parts as well - color wheel, fans. My approach is that I expect to get around 3-4 years from a PJ. Anything more and I'm on borrowed time.