I have a almost dead rasterops 2075 monitor. When you power it on there's a
high pitching buzzing/whining from the power supply section that gets softer
over the next minute - then its a steady soft but audible anoying buzz. I've
checked the output voltages from the power supply. They're labeled on the
pcb and all check out ok. The green light on the front of the monitor comes
on, as well as the led for adjusting the screen settings. And the led moves
when you press the adj buttons etc.

There's also a orange glow from the coils at the back of the tube and I can
hear the HT kick in when you switch the monitor on. The problem is there's
no picure - completely black.

Any idea where i can start looking - anyone know if there's a common fault
for these monitors.

To start with, test for high ESR caps in the power supply, and scan
circuits. Verify that the power supply is working correctly to start with,
and work from there. It is also possible that there is a scan failure as
well.

--

Jerry G.
=====

"John Dough" wrote in message
...
I have a almost dead rasterops 2075 monitor. When you power it on there's a
high pitching buzzing/whining from the power supply section that gets softer
over the next minute - then its a steady soft but audible anoying buzz. I've
checked the output voltages from the power supply. They're labeled on the
pcb and all check out ok. The green light on the front of the monitor comes
on, as well as the led for adjusting the screen settings. And the led moves
when you press the adj buttons etc.

There's also a orange glow from the coils at the back of the tube and I can
hear the HT kick in when you switch the monitor on. The problem is there's
no picure - completely black.

Any idea where i can start looking - anyone know if there's a common fault
for these monitors.

Thanks - All start of there.

"Jerry G." wrote in message
...
To start with, test for high ESR caps in the power supply, and scan
circuits. Verify that the power supply is working correctly to start with,
and work from there. It is also possible that there is a scan failure as
well.

--

Jerry G.
=====

"John Dough" wrote in message
...
I have a almost dead rasterops 2075 monitor. When you power it on there's
a
high pitching buzzing/whining from the power supply section that gets
softer
over the next minute - then its a steady soft but audible anoying buzz.
I've
checked the output voltages from the power supply. They're labeled on the
pcb and all check out ok. The green light on the front of the monitor
comes
on, as well as the led for adjusting the screen settings. And the led
moves
when you press the adj buttons etc.

There's also a orange glow from the coils at the back of the tube and I
can
hear the HT kick in when you switch the monitor on. The problem is there's
no picure - completely black.

Any idea where i can start looking - anyone know if there's a common fault
for these monitors.