I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

wrote in
oups.com:

I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24"
widescreen crt. It is very old (manufactured Dec '97)...
http://www.sunshack.org/data/sh/2.0/...ta/syshbk/Devi
ces/Monitor/MONITOR_Color_24_Premium_CRT.html...
Did my monitor just meet it's inevitable end and wear out?

Reliability: 110K Hours MTBF (mean time between failures) according to
the web page

2006 - 1997 = 9 years
9 years * 365 days/year * 24 hours/day = 79K hours

So... it's about time it failed, if it were on 24/7. If it wasn't then
it's still young, in theory. In any case, try to find out what broke,
and what it would take to fix it. 24" monitors are not cheap to come by!

ha escrito:

I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

sounds like protection possibly due to a fault in the line stage.
desolder the HOT and connect a 100w bulb c-e- see what happens.
-B.

in my humbile opinion, certain sonys just dont last long.


I had a trinitron monitor last for long period of time. VERY long.

then ive had some that only last a year or two.

seems the newer the monitor is, the less long it lasts. quality has gone
down drastically over the years.



"b" wrote in message
oups.com...

ha escrito:

I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

sounds like protection possibly due to a fault in the line stage.
desolder the HOT and connect a 100w bulb c-e- see what happens.
-B.

wrote:
I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

Try unplugging it for ten minutes, then try again.

If it still doesn't work try it on a different computer and see what
happens.

Do you hear it crackle when it powers up, will static cling make paper
stick to the screen, if not did it used to?


-Landon

lj_robins wrote:

wrote:
I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

Try unplugging it for ten minutes, then try again.

If it still doesn't work try it on a different computer and see what
happens.

Do you hear it crackle when it powers up, will static cling make paper
stick to the screen, if not did it used to?


-Landon

The monitor crackles normally, but it doesn't seem to make any static.
It sounds like it tries to turn on, but a breaker/relay clicks at the
last minute.

ha escrito:

lj_robins wrote:

wrote:
I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/Devices/Monitor/MONITOR_Color_24_Premium_CRT.html"spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?

Try unplugging it for ten minutes, then try again.

If it still doesn't work try it on a different computer and see what
happens.

Do you hear it crackle when it powers up, will static cling make paper
stick to the screen, if not did it used to?


-Landon

The monitor crackles normally, but it doesn't seem to make any static.
It sounds like it tries to turn on, but a breaker/relay clicks at the
last minute.

do the bulb test and post results. have you measured any of the power
supply lines? you'll have to give us a few more indications if you
expect useful suggestions

wrote in message
oups.com...
I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

The extra "click" you heard was the AC main power relay being powered off.

I don't know why nobody has suggested it (I am NOT a repair professional,
feel free to correct me if I'm wrong) but if was a TV, you'd have a bunch of
posts telling you that some protection circuit had kicked in and that, given
the age of the unit, perhaps you'd be wise to check your electrolytic caps
in the power supply. Like a television, your monitor has a protection
circuit which monitors various voltages. If it detects either over or under
voltage (or DC voltage in some cases) it shuts down the unit to avoid
damage. There's a fair bit of heat generated inside these monitors, and
electrolytic caps DO dry out over time... If your SMPS voltages are all
okay, a shorted HOT would definitely give you similar symptoms.

If anybody has a schematic for you, it will save you countless hours.... but
I know Sun isn't that forthcoming with hardware manuals.

Dave

Dave wrote:
wrote in message
oups.com...

I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.


The extra "click" you heard was the AC main power relay being powered off.

I don't know why nobody has suggested it (I am NOT a repair professional,
feel free to correct me if I'm wrong) but if was a TV, you'd have a bunch of
posts telling you that some protection circuit had kicked in and that, given
the age of the unit, perhaps you'd be wise to check your electrolytic caps
in the power supply. Like a television, your monitor has a protection
circuit which monitors various voltages. If it detects either over or under
voltage (or DC voltage in some cases) it shuts down the unit to avoid
damage. There's a fair bit of heat generated inside these monitors, and
electrolytic caps DO dry out over time... If your SMPS voltages are all
okay, a shorted HOT would definitely give you similar symptoms.

If anybody has a schematic for you, it will save you countless hours.... but
I know Sun isn't that forthcoming with hardware manuals.

Dave




Some also have a shutdown that detects lack of deflection, most monitors
have separate HV and horizontal circuits so if the horizontal deflection
transistor is shorted, cold solder joints, etc the monitor will have
similar symptoms.

Hi :

I have some technical PDF for gdm-w900 and similar. If you need I could
send to you (I think it's the same monitor).

I wish you can repair it.

If you finally decide not to repair it I would ask you about the
possibility to buy you one of the internal circuits from this monitor,
the D Mount or D Block circuit (Deflection circuit). My monitor still
works but I have a problem with this circuit and it's burning fast.

Please tell me if you want the PDF files.

Best regards,

Francesc

On 12 nov, 05:41, wrote:
I recently acquired a Sun GDM-90w10 (rebadged Sony w900) 24" widescreen
crt. It is very old (manufactured Dec '97), but it was in remarkably
good condition and worked beautifully.

Tonight I returned home and switched it on, to find that while it made
the clicking noises that it usually makes as it starts up, it didn't
come on. Instead of the tube powering up with the typical "bong" noise,
it made an extra click noise, and the green light switched off, to be
replaced by the light next to it blinking orange. This LED has a symbol
that appears to be a crossed out lightbulb.

When I bought the monitor, there were no manuals for it, and the best I
could find on the internet was a a
href="http://www.sunshack.org/data/sh/2.0/infoserver.central/data/syshbk/De..."spec
sheet/a, so I have been unable to find what this flashing LED means.

I do not believe that there should be anything physically broken in the
monitor, as (to my knowledge) it hasn't been moved since I used it last
week, but I can't be sure.

Did my monitor just meet it's inevitable end and wear out? Can anyone
help? Is all hope lost?