[rescue] Sun Voyager: a) great story b) repair question c) looking for a new home

[Dan Moisa]

I'd love some hints for successful recapping. I have 2 voyagers bought as
"for parts"/broken and one had the cap issue. I thought I did it right, but
now the screen is solid black. I tried the adjustments at the bottom and
nothing worked. I'm about to try swapping in a off-the-shelf vga LCD with a
converter running off the original signal sent to LCD. some small research
on the LCD connector from the service manual kinda indicates I have 8 bit
per color RGB and h/v syncs so I can use a simple VGA chip.

The other voyager has a few problems - boot tests fail at probing the cg6 -
if I take it out the system boots, but more worrisome, if left plugged in
there's some power supply issue causing it to randomly turn on and off
after 22 hours.

Are the LSI chips interchangeable, for same LSIxxxx identifier, between the
voyager cg6 and a standalone sbus cg6? I'm tempted to buy some card and try
swapping chips.

Thanks,
Dan.

On Wed, Nov 3, 2021, 10:25 Toby Thain <toby at telegraphics.com.au> wrote:

> On 2021-11-03 1:01 p.m., Doug McIntyre wrote:
> >> Question: is there an obvious cause for LCD failures / are there easy
> ways to
> >> troubleshoot/repair this? The repair guide says: just replace the LCD.
> That
> >> will be hard..
> >
> > LCD panels especially succumb to the same drying out of electrolytic
> > capacitors that plague the industry.
> >
> > I am 3 for 4 in fixing LCD panels by replacing the obviously blown
>
> I see better than 90% success by recapping (I've probably fixed 20 or 30
> - another one this week).
>
> Stop and think about that level of pointless waste...
>
> --Toby
>
> > electrolytic capacitors on the control or power board inside the LCD
> > panel.  Just look for any bulging cans, especially on the vent end, as
> > they are designed to vent out the magic smoke.
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
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