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Sont GDM-W900 problems, please help!

M

matt hare

Resently my W900 stopped working. It was just fine one night
so i turned it off before bed. In the morning when i got up and
turned it on, it no longer worked.

here is what happenes when i push the power button.
The power LED momentarily lights up green, then imidiately
both the power led and the poersaving leds begin to blink amber
simultaniously. The monitor degausses and I can here the scrackling of
static as the tube charges. I can here the relays inside swithcing,
about 2-3 times before they stop. When they switch the final time, the
power LED turns off leaving only powersaveing LED blinking. After
than, nothing else happens.

Observations: From reading the Sony website, i leaned that
holding down the contrast up button for 2 seconds after you turn
the montior on will make the monitor go into a selftest mode and
deiplay some color bars. I tried this, i got nothing, but from holding
down the contrast up botton i must have made the contrast go to 100%
and when i turn on the monitor, after the first click of the relays,
there is a momentary flickering white display on the screen, most
likely the raster coming up as the tube warms up just before it get
shutdown.

i would really love to get this monitorworking again. I am skilled
in electronics and very good with a soldering iron.

thanks,
matt
 
D

Dasha Grant

WELL, IT'S OBVIOUSLY WENT HOMOSEXUAL AND YOU NEED TO BUY A NEW STRAIGHT
MONITOR.
 
gdm-w900 repair.

Hi :

I have the same monitor (Sony gdm-w900) and some technical manuals (no squematics), if you think this can help please contact me and I'll send PDF's to you.

I wanted to ask you if you finally repaired your monitor. If not I would like to know if it would be possible, before throwing it to fire, to buy you the "D Board" circuit. Mine has burned with a beautiful hole in the middle of the circuit. My monitor is still working OK but starts to smell burning after 5 minutes of use, so I need to change the full "D Board" circuit.

Best regards,

Francesc


matt hare said:
Resently my W900 stopped working. It was just fine one night
so i turned it off before bed. In the morning when i got up and
turned it on, it no longer worked.

here is what happenes when i push the power button.
The power LED momentarily lights up green, then imidiately
both the power led and the poersaving leds begin to blink amber
simultaniously. The monitor degausses and I can here the scrackling of
static as the tube charges. I can here the relays inside swithcing,
about 2-3 times before they stop. When they switch the final time, the
power LED turns off leaving only powersaveing LED blinking. After
than, nothing else happens.

Observations: From reading the Sony website, i leaned that
holding down the contrast up button for 2 seconds after you turn
the montior on will make the monitor go into a selftest mode and
deiplay some color bars. I tried this, i got nothing, but from holding
down the contrast up botton i must have made the contrast go to 100%
and when i turn on the monitor, after the first click of the relays,
there is a momentary flickering white display on the screen, most
likely the raster coming up as the tube warms up just before it get
shutdown.

i would really love to get this monitorworking again. I am skilled
in electronics and very good with a soldering iron.

thanks,
matt
 
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