View Full Version : sony vph-d50q aboard
i just picked up a sony vph-d50 crt projector with remote
i think it has low hours because of the lack of dust in it but it has a few problems. when i first turn it on all the crts fire up but then very shortly after the blue and green turn off. when i use the s video with a dvd player all guns fire and it works. problem number two is that the remote wont work at all
except when i plug in the scontrol the enter button works but thats it
i think its the a board but have had no luck finding one online does anyone know where i can find one or how to fix this without the remote i cannot access the service mode where there are a ton of tweeks
Curt Palme 11-19-07, 10:17 PM The DIP switches on the back of the unit need to be set to 0,1 for the remote to work. 0,0 will give you nothing.
Without a signal inputted, the tubes may be on or off. If the set works with an Svideo signal, then the set itself is probably fine.
Lack of dust in the unit doesn't really tell you anything, the condition of the tubes is what's important.
See the below site for more tech info..:)
but if that work ill be able to see the hours used cool thanks alot
ok i got the remote to work and did a master reset .
unfotunately the projector has almost 10000 hours on it
and finding tubes is not that easy but i will use it till it dies lol
but i still have the problem when i first turn it on with no signal all tubes lite up then the blue and green turn off and red just sits there and glows. why?
power saving mode is off mabe if i turn it on this will stop this
August_crt 11-21-07, 08:57 AM I am not sure about your tubes cutting off, but does not seem like a big problem as it works with a source. Maybe some more resetting of individual values is in order. Read through the manual and try out different things to get to know your pj. You can learn what the different settings do and which is best. It's a great little crt, if you get it setup right you will be pleased with the picture (took me two setups of approx. 4hrs to get where I wanted mechanically and electronically) and proud of yourself for the effort.
Best tips are to reset every setting individually (all zone settings for instance), and lining up the internal pattern with an external one to get good convergence. All the info is here and on Curt's site, just search, read and learn.
drice12 11-21-07, 09:09 AM The tubes cutting off when there is not a signal is normal. Is there 10000 hours on the tubes? If so, the pic that you are getting out of this PJ is probably not representative of what a good condition CRT can really do. The D50 drives the tubes very hard and 10000 hours is way beyond the usefull life of these tubes.
Curt Palme 11-21-07, 10:31 AM Maybe. If the set was in standby mode for 9500 hours, you might still be OK. THe key will be when you actually do enter an input signal and look at light emission and focus. THose D50s are razor sharp when the tubes are in good shape. If the white balance and focusing is dull or way off, then the tubes are shot. Most likely. ;)
well im getting a very nice picture
only doing about 70 inch
color is nice only a few problems the upper left hand corner is slightly out of focus maybe more tweeking but i could live with it
the tubes dont show any signs of uneven wear
i used to have a infocus in72 dlp beamer but i sold it
i got this sony for zippo
the infocus threw a nice pic but you can tell the contrast ratio is much better with a crt but you get them horizontal scan lines like a tv with crt
thanks for all your help its been an adventure and have a nice turkey day all
did you all read about the huge turkey a member bought in here it was hillar
August_crt 11-22-07, 05:59 AM Good for you. I have a 72" screen also, you get very punchy images on that. There is one of the corners I can also not get in focus as well as the rest (with 2300hrs on the machine), but no matter since you don't see it in movies. Now try it with 720p or 1080i through the 5BNC or try a HDfury or similar for hdmi sources, tweak it for the new settings and enjoy. If you want to stick to DVD try and feed it progressive, upscaled or maybe the pj even has the built-in linedoubler installed? I run my D50 at 720p72 from an HTPC.
drice12 11-22-07, 09:40 AM The D50 does have a built in line doubler. If your playing SD material make sure that you have this option on.
Dan
lol i dont know if this one has the built in line doubler
how can you tell . will it work with svideo?
would it be in the menu ?
ok i think i got it is it the idtv in the menu?
August_crt 11-23-07, 05:18 AM Yes it is. Turn that on for better PQ with DVD.
jlewis1111 11-23-07, 01:23 PM sure is
Loudmouse 11-23-07, 03:14 PM Hmm, my D50 doesn't have this option menu in service mode, is it possible it got disconnected when the previous owner installed a IFB-12 into input B? Would it still show up in the menu if it was disconnected? Where would the board be mounted if it was in there?
Maybe I'm running this PJ too hard using a 106" wide screen. I have to really crank up the brightness/contrast to about 80/70. Focus isn't as sharp as I would like even after careful setup too. 3600 hours on it.
And while I'm ranting, how do I set the bias and gain. The settings now are bias R144, G66, B177 and Gain R142, G202, B218. Too high?
The D50 is still far better looking than my old 1020 which I had to run contrast at max to get a usable image.
draganm 11-23-07, 05:43 PM the infocus threw a nice pic but you can tell the contrast ratio is much better with a crt but you get them horizontal scan lines like a tv with crt you need to skip the s-video and run 1080i to avoid scan-lines. ;) S-video and 480i will produce scan lines as big as your thumb on most CRT's. the internal ie doubler will help here but it still sucks. I have to really crank up the brightness/contrast to about 80/70. Focus isn't as sharp as I would like even after careful setup too. 3600 hours on it.Maybe I'm running this PJ too hard using a 106" wide screen. you think?:confused: you need like 2 or 3 D50's for a screen that big. ;) The reason focus is so poor is that as you crank up contrast the beam size grows and blows focus out.
For a screen that big you need at least an 8' electromagnetic focus set which certainly won't blind you but will at least deliver acceptable lums back to the viewing position.
Loudmouse 11-24-07, 04:34 PM Oh, it sure helps to turn the ABG to ON.
Doesn't Sony claim these machines do up to a 250" screen? At that size they must be pretty dim.
drice12 11-24-07, 09:49 PM The setting for the internal doubler should be the top item on the 2nd page. Screen size is a matter of taste and how hard you want to run the PJ. I have a 110" diagonal with my D50 and it looks great, especially with HD material. I even get a "watchable" picture with some lights on in the room. I am running it hard like you, about 70 contrast 80 brightness but I figure if it last for 2 to 3years I have certainly gotten my money's worth for $500. (edit) I just checked my hour meter, I bought the unit with 1700 hours and now have 2300 hours and I have had it a year. At this rate even at the higher output it should last 3 to 4 years. I am currently working on getting a Barco 1209 working. It will be interesting to see the difference between the D50 and the 1209 if I can get it going.
August_crt 11-25-07, 08:49 AM Some D50s had the linedoubler, others didn't. It's attached to the RGBHV/s-video input in slot A. IFB-12 in B doesn't matter, I have one there. If you don't have the linedoubler, use a progressive signal or far better an HDTV signal 720p or 1080i like Draganm said.
ABG on looks way better here although you notice the ABG lines in or above the picture a bit. Contrast and brightness around 50. It helps to get your room as dark as possible. I never messed with the bias and gain, as this pj was calibrated before I got it. Sure, different source and screen, but still those bias settings will not be very wrong.
i peered into the lenses with a flashlight red and blue look good but green is showing wear
if you guys could do me a favor turn on your projector with no signal after a few minutes mine turns the blue and green off and the red stays on does yours do this too? or is something out of whack
also i cant turn the projector on with the remote unless i have the s cable connected im thinking these problems are related to something being not right in the a board any ideas?
August_crt 11-25-07, 03:43 PM I'll take a look tomorrow. I normally always have a source hooked up and on and remote turns pj on. I'll edit this post when I know more.
indianelvis 11-30-07, 12:23 PM ok i got the remote to work and did a master reset .
unfotunately the projector has almost 10000 hours on it
and finding tubes is not that easy but i will use it till it dies lol
but i still have the problem when i first turn it on with no signal all tubes lite up then the blue and green turn off and red just sits there and glows. why?
power saving mode is off mabe if i turn it on this will stop this
How do you get to the hour meter on these. I have gone through the manual but don't see instrucions on doing this anywhere
I just picked up a D50 on Ebay for $250 locally. The owner mentioned he used it for a couple of hours a month over the past 7 year (which would be less than 500 hrs in total). My picture is pretty good but needs some fine tuning I think it was because the prior owner had it projecting upwards from the floor where the top of the screen was 9 or 10 feet of the ground. My basement ceiling is just over 6 feet so when I project it flat on the ground the top of the picture looks and inch or 2 narrower than the bottem. I need go through the manuals to figure out how to correct this. Not having any experience with these things any help from the experts in this forum would be much appreciated.
drice12 11-30-07, 02:00 PM Push the following on the keypad, Enter-Enter -up arrow - down arrow - enter. The hours will be on the second page of the menu
Dan
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