User manual

Service 25
NORMAL UPDATE
To update fixture software, connect an upload device to the fixture just like a DMX controller and perform a
DMX mode upload as described in the uploader’s documentation. There is no need to isolate the MAC 250
Wash from other types of fixtures on the DMX link.
After a software upload, when the MAC 250 Wash boots up it performs a check-sum test of the flash
memory and then resets. If the firmware is corrupted, a check-sum error (
) occurs. A few seconds
later the fixture displays
 and is ready for a new DMX-mode upload.
In the unlikely event that a software upload is interrupted, the fixture must be powered off for at least 10
seconds to force the check-sum test. You can repeat the DMX-mode upload as soon as
 is displayed.
BOOT SECTOR UPDATE
If the normal update procedure fails or the software update notes call for a boot-sector update, install new
software as follows:
1. Disconnect the fixture from AC power.
2. Remove the left-side yoke cover (see Figure 16) to access the PCB.
3. The boot sector jumper is located next to the plug for the
control panel data cable. Move the jumper to the Init setting.
Check that the Flash Write jumper is in the Enable position.
See the diagram in “Circuit board connections” on page 34.
4. Apply power and perform a boot-mode upload as described
in the uploader manual.
5. Disconnect the fixture from AC power. Move the jumper
back to the Lock setting.
6. Re-attach the yoke cover.
The boot sector update can also be activated in the control panel menu under
→
InitLock
front
Figure 17: Boot sector jumper