So a while back we had a power failure while the HT was running. When the power came back on the PLV-Z4 projector powered up then almost immediately closed the front shutter and turned on the "Replace Lamp" indicator. No spare. Toy budget low. Bad language.

I had an old 32" CRT sitting around so hauled it up to the front of the room, hooked up component video cables and sadly set everything to 480i, 4:3, and resigned myself to watching 2.40 aspect ratio BluRay disks on a 480i 4:3 32" screen and feeling sorry for myself.

The toy budget finally coughed up enough money for a replacement bulb. It arrived the next day - looks like the UPS guy threw the box the last few feet because you could see the marks from where it rolled in the snow before coming to a stop on my front porch. Getting nervous now.

Go upstairs, disconnect projector, turn it over, remember I left my toolbox at the old house. 24 hours later, undo 4 screws, pull the bulb, put the new one in, replace 4 screws, turn it over, hook up the cables, turn on the power...

... and the shutter closes again, then the "Replace Lamp" light comes on again.

More bad language. Pull the new bulb, stare at it... filament looks OK. Look at the old bulb... filament looks OK too. Weeks pass while I decide whether to firebomb the UPS depot or the place that sold me the bulb.

Inspiration hits one day and I poke around on the internet to see if anyone else had the same problem. Yep, although most of the advice is either "buy another bulb and don't get finger oil on it this time", or "you're gonna have to replace the ballast, ha ha it's gonna cost you".

After a while I realize that nearly all of the problems eventually get fixed by pushing a button. Turns out there's a safety switch which trips when the temperature gets too high and which needs to be manually reset in order for the fun to continue. Pull 6 screws, looking carefully at the first few to make sure they're all the same size.

Lift lid, push button, close lid, go to replace screws and realize that 5 are the same size and one is tiny. More bad language. Waste time figuring out the number of possible permutations before realizing that all I have to do is drop the small screw in each hole and see if the threads bite.

Hook up cables, turn on, everything happy. Amazed how good a DVD can look (I was watching the Season 1 "Sanctuary" DVDs). The new bulb seems to be quite a bit brighter than the old one, or maybe that's just placebo effect.

I'm probably the only person who didn't know about that damn switch, but posting this just in case...


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8