Hi
On my Virtual Reality machines, there are two types of LCD`s used in the headsets - depending on the machine version.
On version uses Epson LCD`s, while the other uses Panasonic.
The machines also output to an external display via a 9pin Dplug - CGA (RGB & sync)
On an old CRT, this works fine, with either a system for Panasonic of Epson.
With LCD`s, using either a CGA to VGA, or CGA to Composite - with an Epson system its fine, but on a Panasonic system, the video output is unstable.
Effects like no sync on some LCD`s, or vertical shaking or odd colours..
I have found a manual with a note in it... so I hope this helps you help me making the video stable on a Panasonic system.
In the manual, it states that the video output is:
Type : RGB Analogue
Volatege : 1v Pk to Pk
Impedence : 75ohm
Connection 9 pin D-type
Line period : 64 nano seconds (15kHz)
Field rate : 49.92 Hz
sync voltage : 0.3v
Now the interesting bit:
Sync type : Printed as Combined Sync (+ve) - I believe this is for the panasonic screens
The `combined` has been crossed out, and hand written as Neg Going TTL. Which I imagine is for the Epson screens
Now, my hope is, that I can get a stable output on Panasonic systems, as most of my machines are Panasoinc systems.
Thanks
Simon
On my Virtual Reality machines, there are two types of LCD`s used in the headsets - depending on the machine version.
On version uses Epson LCD`s, while the other uses Panasonic.
The machines also output to an external display via a 9pin Dplug - CGA (RGB & sync)
On an old CRT, this works fine, with either a system for Panasonic of Epson.
With LCD`s, using either a CGA to VGA, or CGA to Composite - with an Epson system its fine, but on a Panasonic system, the video output is unstable.
Effects like no sync on some LCD`s, or vertical shaking or odd colours..
I have found a manual with a note in it... so I hope this helps you help me making the video stable on a Panasonic system.
In the manual, it states that the video output is:
Type : RGB Analogue
Volatege : 1v Pk to Pk
Impedence : 75ohm
Connection 9 pin D-type
Line period : 64 nano seconds (15kHz)
Field rate : 49.92 Hz
sync voltage : 0.3v
Now the interesting bit:
Sync type : Printed as Combined Sync (+ve) - I believe this is for the panasonic screens
The `combined` has been crossed out, and hand written as Neg Going TTL. Which I imagine is for the Epson screens
Now, my hope is, that I can get a stable output on Panasonic systems, as most of my machines are Panasoinc systems.
Thanks
Simon