Christie Entero RPMHD-LED01, Service Manual

Page: 27 / 70

Section 3: Troubleshooting
Entero RPMSP/RPMWU/RPMHD-LED01 Service Manual 3-11
020-100368-05 Rev. 1 (06-2012)
Service Units at Different Firmware Levels
An EM or PHM unit from service stock may be at a different revision level than is required in the current
system. Optimally, the replacement unit can be upgraded to the appropriate version at the service depot in
order to minimize time on site. If this is not possible then the part may be installed and then upgraded
individually.
If the service unit is an EM then it should be possible to use the WebUI and boot into fail-safe mode. Do not be
concerned—in this case—if the PHM revisions are not displayed, since the units are likely not communicating
due to mismatch. Upgrade the EM to the firmware level that matches the customer system. Follow the upgrade
procedure and reboot. For details, see the
Visual Environments Projector Software Upgrade Instruction
Sheet (P/N: 020-100443-XX) .
If the service unit is a PHM then follow the procedure outlined in 3.9.5 Direct Ethernet Connection from PC to
PHM , to push the PHM into fail-safe mode and update it individually.
3.9.3 WebUI Indicates Early Completion
Due to a bug in fail-safe mode, the WebUI and the upgrade service on the projector can occasionally get out of
sync. When the upgrade is started, the process may abort early and either appears as complete or that an error
has occurred. The upgrade takes approximately 20 minutes to complete. If the WebUI returns in a significantly
shorter time (1 minute) then this may indicate that it is out of sync.
Refresh and Re-sync
Press F5 to refresh the WebUI. It should re-synchronize and indicate that the upgrade is still in process. If this
is not the case, do not attempt to upgrade the file again as this will corrupt the flash on the projector .
Leave the projector in fail-safe mode for 30 minutes as the upgrade is likely taking place in the background.
After 30 minutes, reboot the projector. As standard procedure, always push
F5 to refresh the browser after a
successful download. Six version information lines should be present and match the version of the upgrade
target.
3.9.4 Power Lost During Upgrade
A loss of power during an upgrade will usually corrupt the main flash image. This is normally recoverable, but
requires a special procedure to place the unit into fail-safe. Typically, you would be aware if the power failed
during an upgrade operation. However, if not, the symptom would typically be that the projector remains with
BO on the status panel, indicating that it is booting, but never makes it to the main code.
For this procedure the following tools are needed:
• PC with a serial port or a USB-to-serial adapter
• Serial cable
1. Connect the serial cable to the RS-232 IN port on the device you need to recover.
2. Start Microsoft Hyperterminal (
Start > Programs > Accessories ) and type a name for your connection.
3. Click OK .
4. Select the appropriate COM port and click OK .
NOTE:
This will depend on your PC configuration.