Software Updating - Hughes JVC 100 Service Manual

3.8 Software Updating

The Model 100 software resides in Flash Memory and is updated via the projector's
serial Port A. To perform an update, a disk containing the updated Boot Software
(boot.hex) and/or System Software (zsys.hex) and a PC with Windows 3.1
(Windows 95/98 with Procomm Plus fax/modem software) is required to perform
update.
Boot Manager Software and System Software are separate files. Each may be
updated independently. The System Software will depend on a specific version of
the Boot Manager. Refer to the System Software release bulletin for Boot Manager
version dependencies.
To setup the PC terminal (Windows 3.1):
1. Verify that the projector circuit breaker is off. Use a Null Modem cable to
connect a PC to the projector's Serial Port A.
2. Start Windows 3.1.
3. Click on the terminal icon from the Accessories Directory.
4. From the Terminal menu, select Settings-Terminal Emulation, click on
DEC-VT-100(ANSI) and select OK.
5. Under Settings choose Terminal Preferences.
6. Under Terminal Preferences the following selections are appropriate;
Terminal Modes=Sound, CR->CR/LF=Both off
!
Columns=80, Cursor=Block & Blink
!
!
Bars=On, Buffer Lines=100
Use Function Arrow & Control Keys for Windows=Off.
!
7. Select OK.
8. Under Settings, select Text Transfer=Standard Flow Control. Select OK.
9. Under Settings select Communications and choose:
Connector=select the PC port being used
!
Baud Rate=9600 or 19200 (depending on the System Controller
!
Switch block Pos 4-see note below this step)
Data Bits=8, Stop Bits=1, Parity=None, Parity Check=Off, Carrier
!
Detect=Off, Flow Control=XON/XOFF
10. Select OK.
To setup the Model 100 Projector:
1. Remove the System Controller/Raster Timing Generator and verify that all
the DIPswitches are in the up position. The switch in position 4 on the
switch block (see Figure 3-12) controls the baud rate for Serial Port A for
the Boot Manager and System Software. Up=9600, Down=19200. The
switch in position 4 should be in the up position.
Model 100 Service Manual
Terminal Font=Fixedsys 15, Translation=None, Show Scroll
Chapter 3---Service Adjustments
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