MWLyon
 
 
 

Design Work Completed

>Prototyping
 
>Schematic Capture
 
>PCB Layout
 
>Initial Fabrication

 

 

2001
Sony Scan Converter Mod
 
Using the Sony DSC1024 at 96Hz
with the LOX2000 Sync-Lock

Many of the devices that use the LOX2000 sync-lock can be modified
by the customer in their own shop. The DSC1024 is not one of those
devices. Several very intricate procedures need to be performed and
can only be accomplished by our staff in our facilities. The DSC1024
needs to be shipped to us for the modification procedure. This page
is included on our site to allow you to get a general idea of what the
modification consists of as well as to inform current owners of modified
DSC1024 units about upgrades that they may want to implement themselves.

 

Instructions for use of Sony DSC1024 with LOX2000 96Hz modification.

This unit has been modified to operate outside of factory parameters.
Several special procedures and cautions should be followed for most
reliable operation.

1. Always connect program input video to Video 1 "IN" BNC.
The Video 1 "OUT" BNC automatically back terminates the video
unless a connector is applied to the Video 1 "OUT" BNC.

2. Always connect LOX2000 sync-lock video to Video 2 "IN" BNC.
The Video 2 "OUT" BNC automatically back terminates the video
unless a connector is applied to the Video 2 "OUT" BNC.

3. Always place VGA Video Out "SYNC" switch in the "SEP" position.
Unit will not sync-lock in "COMP" position!(See 6/5/99 upgrade below)

4. The Doubler(48Hz/96Hz) selector switch is on the rear panel next
to the VGA Video Out connector.
Frame Rate Table

The following table reflects the frame rates achievable with the
LOX2000/DSC1024 combination using LOX2002.ASM software and no EEPROM.
1. Use only 29.97 NTSC as Program input video on Video 1 "IN" BNC.
2. The Mode column reflects the choices offered by the DSC1024 Control Panel.
3. The Doubler column refers to the toggle switch installed on the rear panel. Down is OFF and Up is ON.
4. The 23.98FPS through 30.00FPS columns refer to the frame rate of the video black signal applied to the sync-lock Video 2 "IN" BNC connector on the rear panel.
5. The rows below the 23.98FPS through 30.00FPS columns refer to the VGA monitor's Vertical refresh rate produced by the combination of selected Mode and Doubler values. The LOX2000 sync-locks the DSC1024 at all settings. A sync-locked DSC1024 does not guarantee the output of usable pictures. The --------- symbol means that
no usable picture is output with that selection combination
Mode Doubler 23.98FPS 24.00FPS 24.02FPS 25.00FPS 29.97FPS 30.00FPS
31.5K OFF 47.96Hz 48.00Hz 48.04Hz 50.00Hz 59.94Hz 60.00Hz
31.5K ON 95.92Hz 96.00Hz 96.08Hz 100.00Hz ---------- ----------
37K OFF 47.96Hz 48.00Hz 48.04Hz 50.00Hz 59.94Hz 60.00Hz
37K ON 95.92Hz 96.00Hz 96.08Hz 100.00Hz ---------- ----------
48K OFF 47.96Hz 48.00Hz 48.04Hz 50.00Hz 59.94Hz 60.00Hz
48K ON ---------- ---------- ---------- ---------- ---------- ----------
64K OFF 47.96Hz 48.00Hz 48.04Hz 50.00Hz 59.94Hz 60.00Hz
64K ON ---------- ---------- ---------- ---------- ---------- ----------

----------------------------------"48 Hz" Video Out---------------------------------
When switching into "31.5K" Mode from another Mode, unit will output a
noisy picture. To clear up the picture, do one of the following:
A. Switch to "PAL" Mode briefly, then to "31.5K" Mode or...
B. Remove and replace Video 2 genlock video or...
C. Switch 48Hz/96Hz switch to 96Hz briefly then back to 48Hz.
(See 3/7/00 upgrade below)

----------------------------------"96Hz" Video Out----------------------------------
"48K" and "64K" Mode selections are not usable due to limits on the DSC1024
video memory speed.

 

Upgrades to the DSC1024/LOX2000 Sync-Lock Mod.
LOXDSC MODIFICATION UPGRADE 6/5/99

In the original configuration of this modification, the LOX2000 "Return V Dr."
leads were connected to the V Dr. pins on the VGA connector. Under these
conditions it was necessary to always place the VGA Video Out "SYNC" switch
in the "SEP" position. The DSC1024 would not sync-lock in "COMP" position.
By moving the LOX2000 "Return V Dr." leads to the location shown below near
IC704, this precaution is no longer necessary. The LOX2000 modified DSC1024
will now sync-lock regardless of the VGA Video Out "SYNC" switch position.

 
 
 
 

LOXDSC MODIFICATION UPGRADE 3/7/00

An operational issue has been noticed by some users of the LOX2000 modified
DSC1024. When using the modified DSC1024 in a non sync-lock mode, inconsistent
output frame rates have been observed. The cause is due to incorrect power
supply sequencing during power-up. The fix is simple. Remove the red and black
LOX2000 power leads from their original locations and re-attach them to the +5V
and ground pads for C261. This powers the LOX2000 any time the power cord is
attached regardless of the on/off switch.

 
 
 
 

 

 

 

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