Re: Performa monitor very dark (DANGER!)

[Craig Ringer]

Shay Telfer wrote:
WARNING! The voltages inside can be several thousand volts even when the 
computer has been turned off and unplugged for a while (due to energy 
stored in the analog board's capacitors) and can quite easily **kill you**.


There's a reason the outside case is hard to get off.


Indeed. I have the tools to open such cases easily, but generally choose 
not to. I'll let those who know how to safely discharge monitors work on 
them ; ditto power supplies. The rest is fair game.


Craig Ringer

Re: Performa monitor very dark (DANGER!)

[Shay Telfer]

Thanks heaps to James for the solution to this - it was to adjust 
the internal brightness knob on the flyback transformer. This is 
actually clearly labelled inside the computer. The hard bit is 
getting the Performa open without the star shaped tool it obviously 
needs!


WARNING! The voltages inside can be several thousand volts even when 
the computer has been turned off and unplugged for a while (due to 
energy stored in the analog board's capacitors) and can quite easily 
**kill you**.


There's a reason the outside case is hard to get off.

Thanks,
Shay
--
=== Shay  Telfer 
 Perth, Western Australia   TechnomancerJoin WA's annual
 Opinions for hire  [POQ]   Speculative Fiction festival
 [EMAIL PROTECTED] fnord 

Re: Performa monitor very dark

[Jude]

Thanks heaps to James for the solution to this - it was to adjust the 
internal brightness knob on the flyback transformer. This is actually 
clearly labelled inside the computer. The hard bit is getting the 
Performa open without the star shaped tool it obviously needs!


Thanks also to Stewart for his offer of another Performa, which gave 
me the confidence to open up mine.


Very happy :)

Jude

Re: Performa monitor very dark

[Stewart Woods]

On Sunday, January 4, 2004, at 11:49  AM, Jude wrote:

Any ideas? I am willing to open up the computer and poke things if 
someone tells me what might need doing, because she doesn't know she 
is getting the computer yet and if I break it then she won't have been 
anticipating a computer that she never gets.


Pushes in the right direction gratefully received.


Hi Jude,

Can't help with the screen problem but if it turns out it can't be 
fixed then we have an unused 580CD sitting in the garage here which 
you're welcome to have if yours has died.


cheers,

Stewart

Performa monitor very dark

[Jude]

Hi All - Happy New Year :)

I am in the process of cleaning up an old Performa 580cd to give to a 
single mum that I know so that she can do some simple word processing 
and let her son play a few games.


The computer runs well, stripped back to 7.5.5 and very bare on all 
other junk, but the monitor is very very dark. Even with the 
brightness all the way up it is often difficult to read things on 
darkish backgrounds.


I once stumbled on something that helped with a similar problem - 
some sort of software 'gamma correction", but now I can't find it and 
I really have no idea about the physical things that could be done to 
correct the problem. Of course, I also don't want to be spending 
money on repairs on a computer I am giving away, or making her pay to 
repair it either.


Any ideas? I am willing to open up the computer and poke things if 
someone tells me what might need doing, because she doesn't know she 
is getting the computer yet and if I break it then she won't have 
been anticipating a computer that she never gets.


Pushes in the right direction gratefully received.

Jude