Troubleshooting
20
Low-Frequency Driver (A-1903)
Tools Required:
9/16 wrench, #2 Phillips
screwdriver, 3/16 Allen wrench, silicone
1�
Remove the front mesh assembly (45 lb
[20 kg]):
a�
Remove 8 bolts (4 top, 4 bottom) with
9/16 wrench.
b�
Pull the mesh assembly off.
2�
Remove suspected bad driver(s):
a�
Remove 8 screws with 3/16 Allen wrench.
b�
Pull off driver, taking note of positive and negative wire location.
c�
Test the driver(s) by following
.
d�
If bad, remove driver (
3�
Install replacement driver:
a�
Reconnect wires, making sure positive and negative go to correct terminals.
Apply silicone to terminals.
b�
Align driver with screw holes.
c�
Fasten 8 screws with 3/16 Allen wrench.
4�
Reinstall the front mesh assembly.
5�
Test the system to verify it is operating correctly per
.
Amplifier Troubleshooting and Replacement
Tools Required:
#2 Phillips screwdriver, flathead screwdriver
1�
). Note that it may require a key to access.
2�
Locate the defective amplifier:
a�
for basic amplifier troubleshooting, or refer
to the
Sportsound Amplifier Field Guide (DD3318172)
, available online at
, for more detailed troubleshooting procedures.
b�
Once it has been determined that there is a defective amplifier, contact
Daktronics to order a replacement.
3�
Verify the new amplifier is the correct
replacement for the defective amplifier.
Check the label (
to verify that the
Part Number
matches the table
below and that the
Config
matches the label on
the defective amplifier.
Product
Legacy Amp Part # New Amp Part #
Amplifier Label
Quantity
500HD-SL/SR
A-2611*, A-3636*
A-3922465
AMP1 LMHF
1
500HD-Dual
A-2611*, A-3636*
A-3922465
AMP1 LMHF
1
A-2216*, A-2538*
A-3922601
AMP2 MHF
1
* These amplifiers will be replaced by the corresponding new amplifier part number.
Figure 30:
A-1903 Removal
Figure 31:
Amp Label
Summary of Contents for SPORTSOUND 500HD
Page 32: ...This page intentionally left blank ...
Page 37: ......
Page 42: ...This page intentionally left blank ...
Page 50: ...This page intentionally left blank ...
Page 52: ...This page intentionally left blank ...