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Fuse replacement
Warning! Disconnect from power before opening covers. Replace fuses with ones of the same type
and rating only.
Primary fuse
Stagebar 2 fixtures are protected by a 4 amp slow-blow primary fuse located in a fuseholder on the rear
panel (see Figure 1 on page 6). If a fixture is completely dead (apart from the battery-powered functions
available in the control panel and display), the primary fuse may have blown.
To replace the primary fuse:
1. Disconnect the fixture from power and allow to cool for 10 minutes.
2. Using a flat-head screwdriver, turn the fuseholder cap counter-clockwise to release it, then remove the
fuse.
3. Replace a defective fuse with one of the same type and rating only. Replacement primary fuses are
available from Martin suppliers (P/N 05020016).
4. Reinstall the fuseholder before reapplying power.
Battery service
The onboard battery that provides power to the control panel and LCD display is recharged while the fixture
is connected to AC power. If the battery has lost its charge over a long period with the fixture disconnected
from AC power, the first remedy is to reconnect the fixture to power.
Due to natural aging, the battery will over time lose its ability to hold a charge. Eventually it will reach the
end of its service life and require replacement. The battery is located immediately behind the bottom cover,
attached to the chassis. Contact a Martin service technician for replacement.
Software installation
It may be necessary to upload new software to the Stagebar 2 if you believe that the product has a
software-related fault or if you want to update to a newer version. Software updates are available from the
Martin website (http://www.martin.com) and can be installed via the DMX data link with the following items:
• The Stagebar 2 main CPU software update file, downloadable free of charge from the Product Support
area of the Martin website.
• The Martin Software Uploader program, version 5.0 or later, downloadable free of charge from the
Product Support area of the Martin website.
• A Martin USB Duo DMX Interface or similar PC/fixture hardware interface and Windows PC (if you have
access to a Martin MP-2 Uploader device, this can also be loaded with the Stagebar 2 main CPU software
update file and used).
Installing software: normal method
1. Connect the uploader hardware to a Stagebar 2 fixture's data input connector. The software will be
uploaded to that fixture and all Stagebar 2 fixtures that are powered on and connected via the DMX link.
2. Upload the fixture software as described in the uploader's help file or user documentation.
3. Disconnect the uploader hardware and reconnect the fixture to the DMX link.
4. Cycle power off and on. Check that the fixture resets correctly. If an error message appears in the
display, cycle power off and on again and check that the fixture now resets correctly.
Installing software: boot mode upload
A boot mode upload must be carried out by a qualified professional only.
If you believe that a boot mode upload may be required (if the display is completely dead when power is
applied, for example), or if the software notes call for a boot mode upload:
1. Isolate the fixture from power and open for access to the main PCB.
2. Locate the DIP switch on the main PCB and move pin 6 to ON.
3. Close all covers, reapply power and perform the upload as described above.
4. Isolate from power, open covers, set DIP switch pin 6 to OFF, close all covers and reapply power.
Service and maintenance
19
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