I have a NeXTstation Turbo (monochrome) with a 17" Megapixel display. I'm disappointed by the screen's low brightness and grayish white point. I did adjust the brightness slider in the Preferences dialog, but it's already maxed out. (NS3.3)
Pulling the brightness slider halfway down already makes the screen pitch black.
Do I expect too much of this 17 year old monitor? What do you think of the brightness and white point?
Quote from: "MahRain"I have a NeXTstation Turbo (monochrome) with a 17" Megapixel display. I'm disappointed by the screen's low brightness and grayish white point.
Its a well known issue on non-Sony Megapixel display. You can't do anything except for exchanging to a Sony one..
Quote from: "MahRain"I have a NeXTstation Turbo (monochrome) with a 17" Megapixel display. I'm disappointed by the screen's low brightness and grayish white point. I did adjust the brightness slider in the Preferences dialog, but it's already maxed out. (NS3.3)
Pulling the brightness slider halfway down already makes the screen pitch black.
Do I expect too much of this 17 year old monitor? What do you think of the brightness and white point?
Hi MahRain,
Welcome to the fourms! If you're comfortable w/ taking off the back of the monitor & looking inside, you could try to adjust the internal adjustment. It's been several years since I did one, but it did make a difference on that particular monitor. Just remember that w/ taking the back cover off, you'll be exposing yourself to the risk of being shocked. I wouldn't recommend doing it if you weren't comfortable around electronics. If you need more detailed information, let me know. I'll dig it out for you. Take care.
Ok this is straight from the NeXT-FAQ:
5.23 How to adjust MegaPixel Display brightness and focus?
brightness, MegaPixel focus, MegaPixel
Adjust it using the following information.
From: Charles William Swiger
I have adjusted several monitors with no problems, but make sure you
know what you are doing before opening anything. I expressly disclaim
responsibility for any ill results that may occur.
In order to adjust NeXT's MegaPixel display (called 'the monitor'
hereafter), you'll need (a) the NeXTtool (or a 3mm Allen wrench), (b)
a plastic adjustment tool (preferred) or a thin bladed screwdriver,
and possibly (c) a Phillips-head screwdriver.
(NB: A similar procedure will work for color monitors, but you should
either know what you're doing or you'll probably be better off letting
a pro deal with it.)
Turn off the computer. Disconnect all cables to the monitor. Look at
the back of the monitor. There will be 4 screws there; use the
NeXTtool (or Allen wrench) to remove them. Remove the plastic back of
the monitor and put it out of your way.
Reconnect the cables and turn the computer back on. As the machine
powers up, examine the back of the monitor. You'll see a metallic box
(usually silver, though some are black) surrounding the monitor's
vitals. This protects you against the dangerous voltages inside, and
also insulates the monitor from electromagnetic noise. On the back of
this box are several holes for performing adjustments. There are two
focus controls (labeled 'focus' and 'dynamic focus'), a brightness
control (labeled 'brightness' or possibly 'black level') and several
others that adjust various things like screen size and position.
Depending on the exact placement of the controls on the circuit board
of your specific monitor, some of these controls may be difficult (or
impossible) to adjust from the back. If this is the case, I will
describe what's necessary below. Otherwise, adjust the appropriate
controls using either an adjustment tool or a screwdriver. Be warned
that a screwdriver probably will cause some interesting video effects
when it enters the case. Ignore this the best you can, or find a
plastic adjustment tool, which is what you *really* should be using
anyway. Using a flashlight will help you see into the hole so that you
can align the business end of the tool correctly.
Focus and position controls are fairly obvious. Adjust them slowly
until you're happy with the results. Don't muck with anything you
don't need to; the factory settings are usually pretty decent.
To correctly adjust the brightness, follow this procedure: Turn the
brightness of the monitor all the way down using the keyboard. Adjust
the brightness control on the back of the monitor until a barely
noticeable picture forms. Then turn the brightness down a little so
this picture disappears completely. Check that you can get adequate
brightness by using the keyboard to brighten the screen. If the
display isn't bright enough, adjust the brightness control on the rear
of the monitor high enough so that the monitor display is adequate.
Note that you won't be able to dim the screen completely from the
keyboard...sorry.
Once you're finished, shut down the computer, take off the cables,
reattach the back of the monitor, and reconnect the cables. You're
done.
If the control you need to adjust proves to be difficult, you may need
to enter the metal case. This happened on one monitor's focus control
and another's brightness.
WARNING: THE VOLTAGES INSIDE THE MONITOR'S CASE ARE VERY DANGEROUS,
EVEN WHEN THE MONITOR IS OFF. BE VERY CAREFUL, OR YOU CAN SERIOUSLY
INJURE OR EVEN KILL YOURSELF.
DO NOT PERFORM THE NEXT INSTRUCTIONS UNLESS YOU ARE CONFIDENT THAT YOU
KNOW WHAT YOU ARE DOING. You'll have to power off the computer again,
and disconnect the cables.
Looking at the monitor from the back, notice a section of metallic
shielding on the right side of the metal box that extends to the
picture tube. This is where the flyback transformer is connected. It
shields a wire that is charged to about 25,000 V.
WARNING: DO NOT TOUCH THIS WIRE, IT CAN SHOCK YOU THROUGH ITS
INSULATION.
Being very careful of this, remove the metal case by unscrewing the
Philip's head screws that hold the case on. Don't touch the screws
that hold the picture tube into the front of the monitor's case.
Once you've gotten the metal box off, reconnect the cables. Figure out
what control you're going to adjust, and make sure that you can do so
without touching anything else inside. Again, *watch out* for the wire
that connects to the picture tube on the right side.
Power up the computer. I recommend that you use only one hand to make
the adjustment, and that your other hand be placed in your pocket (or
similar equivalent, if you're wearing clothes lacking pockets). This
precaution reduces the chances that you'll make a short circuit
between one hand, your heart, and the other hand --- a good idea.
Perform the necessary adjustment(s), being very careful not to touch
anything inside. Then shut down and reassemble the monitor, following
the directions given above.
Hopefully, these instructions will prove useful. Once again, please be
very careful...I don't want your death and/or injury on my conscience
(or a lawsuit, for that matter, either :-)
Well, the above instructions worked! Actually, the sticker on the inside of my MegaPixel display showed it's a Sony but the adjustment holes / screws are still there.
Much improved, thank you!
Congrats! Glad they worked for you. The monochrome monitor I adjusted lasted another several years before dieing last year finally. The system is still going strong ;-) Take care.
Quote from: "MahRain"Well, the above instructions worked! Actually, the sticker on the inside of my MegaPixel display showed it's a Sony but the adjustment holes / screws are still there.
Much improved, thank you!
Nice to hear. The non-Sonys, that i have tried to adjust were on the end of lifetime. (so - no success)
(and the Sonys that i have seen were all bright and sharp by default :-))