Originally Posted by BOBCAT
If you could program another ROM, do you know what to change?
There are programers out there that can pop just about any ROM, Eprom Prom. You name it, there is a programer out there that can do it, and they are not that expensive.
Yes and No
The one thing I do know is there is an enable line from
the ROM to the HDMI Multiplexer which turns it OFF
when it sees any frequency that is not programmed
in the ROM - like 1080p/48. That I could even fix with
a JUMPER WIRE
The thing I don't know is there are probably many other
parameters in the ROM that need to be tweaked to
support 1080p/48. Those parameters would probably
be in some tool set - I assume SONY has. I don't know
how to tweak those parameters without some Programming
tool from Sony.
Reprogramming the ROM is not the problem - knowing
which parameters to tweak for the 1080p/48 frequency
is the unknown. I would start with MEMORY LOCATION
13 - which supports 1080p/50 as the closest example.
But without tool set - the best I could do is use a jumper
and see what happens. I would make sure the HDMI
port NEVER turns OFF. It is the only input I use. I
would also disable all the other ports to make sure none
of them turn on as the Memory switches to location
ZERO - which is the default location for any unknown
That is how 1080p/48 via DVI works - it selects memory
ZERO instead of Memory Location 9 which is 1080i/48.