Official Mitsubishi HC4900 Owners Thread - Page 124

Thanks for the reply Jim,

They have a TV downstairs that's using the same source. It's only like a 24"-30" Plasma or LCD flat-screen. I'll ask, but I'm 90% sure this only happens on the projector.

Appreciate the input!!!

Oh, one other thought! Does the projector have an "Overscan" setting? Sometimes this might affect the resultant picture. If it does, he might do well to experiment with the various percentages. I think, on my Mits 4900, I have it set around 95-97 percent, but haven't looked at that setting recently.

I'll forward this on to my bud...thanks again!!!

Hey Guys,

I'm hoping to dig this thread out of the grave one more time for a little help. I purchased an HC4900 from ebay for about the cost of a lamp in hopes of fixing it, and using it, while saving about a thousand bucks. The issue is not new to this forum, the image displays a permanent green tint. I made sure no settings or sources were the cause before disassembling. I'm pretty sure I found the defective part.

https://picasaweb.google.com/lh/phot...eat=directlink

It is the Blue LCD Panel, the ribbon has a burned out wire. I'm having a tough time getting a hold of a replacement Blue LCD Panel. Any help would be appreciated!

The info I've gathered up is as follows:

Mitsubishi HC4900 Projector

Part from manufacturer: Epson D7 Panel with C2 Fine technology
Part #: L3C07U-75G00
Part s/n: 1-JE0859B7

Here's hoping someone out there can be my hero!

Couple of days ago, I got the message to replace the lamp. I am probably around 1200 hours or so in my lamp. Is this normal? Anyone know the lamp life? I don't see any difference in the PQ. Just the same as when it was new. Is there a way to reset the lamp without requiring a replacement and running it until it actually dies?

I don't know what that message looks like, but you should check for certain exactly how many hours it's logged.

Pricing out replacement lamps...

I can spend $150 on a third party replacement lamp with 90-day manufacturers warranty

or

I can spend $315 on one from the manufacturer itself with a 90-day warranty.

Any advice on which may be the better course of action? What would the overall advantage be of going with the Mitsubishi package and it that benefit worth over twice the cost?

You can get generic lamps with generic housings but if you read up on non-OEM lamps it doesn't sound like a good idea. However, it seems like there are companies selling OEM lamps with generic housings for $145. I am planning on going this route myself.

In another thread here it was suggested by member Bohanna to extend PJ life by increasing fan speed. Unfortunately the HC4900 does not appear to have a "high altitude" setting to do this easily, but I wonder if anyone here has a Service Manual, and/or has poked-around the service menus and found any fan speed controls therein?

My lamp is always set to Low, and my fan has never been audible in operation, so I feel I could bump-up the speed w/o affecting the movie experience.

TIA for any feedback on this.

Bittersweet, but I sold my HC4900 today. Was a rock solid projector and served up years of enjoyment. Still going strong and the new owner is going to enjoy it with his family.

What did you replace it with. I still have one hanging in my basement HT and it still looks great. I'm wondering if I can get much better PQ with something else or if I should just ride this out as long as it lasts.

Just last Saturday I replaced the original Lamp with about 7700 hours based on the number displayed on the menu. I set the lamp to standard and I think that the real hours used was about half. The original lamp was about 4 years and I reset the lamp timer once when it was 3900 hours displayed.

I brought a replacement lamp at $90 from eBay with 90-day warranty and also brough a one year warranty offered by Buyshield fpr $7. I kept my original lamp just in case that the new lamp fails and needs to be sent to BuySHield for warranty check.

As soon as I started PJ with the new lamp, I immediately shout out 'wwwwwoh...' becasue it is so much brighter than the original lamp with about 3900 hours. So I regret not replacing the lamp much earlier. I thought that as long as the lamp is working there is no need to change it. Now I know I was wrong. So for this lamp I will just replace it after one year of use. $97 for one year of enjoyment is fine with me.

I am happy again now just as I installed the 4900 four years ago. Now I know how much enjoyment I missed by using the original lamp too long. You don't know the difference until you compare.

I love my HC4900 and will likely replace the lamp when it fails-or-degrades i.e. I will keep it til it stops making great pictures.

When it craps-out, I will replace it with an LCOS or SXRD or some-such with better blacks. I might even do a 3d projector, who knows.

So unless you have $ burning a hole in your pocket, I say "ride it out"!

Anyone get a solid line at the top of the screen when playing a DVD that has a projector icon in it to the left?