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Chapter 3---Service Adjustments
7. Under Settings select Text Transfer=Standard Flow Control.
Select OK.
8. 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. Select OK.
NOTE: Switch position 4 on the switch block at the card edge of
the System Controller (see Figure 5-1) controls the baud rate
for Serial Port A for the Boot Manager and System Software.
Down=9600, Up=19200. Ensure the other SCB switches (1, 2,
and 3) are in the Down position.
9. Turn the projector circuit breaker on while depressing and
holding down the service mode switch on the SCB (see Figure
5-1) for at least 5 seconds or until "Boot Manager" appears on
the terminal monitor. The Power On LED stays Red.
10. The following should be displayed on the Windows Terminal
screen (where x.x.0 is the currently loaded Boot Manager
version (e.g. 0.9.0 or 1.1.0).
–Boot Manager Ver x.x.0 (Service Mode Startup)
–Copyright (c) 1994 Hughes JVC Technology
–Command: _
11. Verify that the Boot Manager version is correct. If it is
necessary to update the Boot Manager, perform the following
steps. If the Boot Manager is already up to date, skip to Step 12
to update the System Software.
11A. Enter the command "loadboot" at the prompt. You should
see the following output:
Command: loadboot
Boot Manager software update procedure
***WARNING: IMPROPER USE MAY MAKE THIS
SYSTEM UNBOOTABLE*** (This warning relates
to the Flash Memory updating that occurs
in Step 11D. Do not turn projector power
off while the Flash Memory is updating)
Memory buffer reset to 0xff
Begin your S-Record upload now (Esc to
abort).
11B. From the Windows Terminal Menu (normally in
Accessories window), select "Transfers/Send Text File",
then select "List Files of Type:All Files", and select the
disk and/or directory with the projector software. You
should see a file named "boot.hex". Select this file and
press the OK button to begin the upload.
Model 200 Service Manual 3-15