Troubleshooting
18
Driver Troubleshooting
Tools Required:
Multi-meter, 9V battery
To access the driver, follow
Steps 1–2
in the
appropriate driver type section under
Before removing the driver, verify correct DC
resistance of the driver using a multi-meter. Refer
. Check the DC resistance of each
driver separately, or check the DC resistance
at the harness. Connect each lead of the multi-
meter to the terminals of the driver (or proper pins
on the harness), and make sure the multi-meter is
set to measure the DC resistance.
Driver Part Number
Resistance
A-2302 (High Frequency)
8.5 Ω
A-2305 (Mid Frequency)
6.6 Ω
A-2306 (Low Frequency)
6.0 Ω
Depending on site conditions, the measurements may fluctuate up and down slightly so
don’t be alarmed; figure out an average. If the resistance is showing near 0 or open, this
indicates the coil of the driver is bad and needs to be replaced.
It’s possible that the coil is perfectly fine on cone drivers (mids and lows), but the spider,
diaphragm, or surround is damaged, eliminating or restricting the cone from moving
in and out. Visually check the surround and make sure it is in good condition. It may
be necessary to remove the driver from the speaker assembly. Carefully push on the
diaphragm and see if it can move in and out to verify the driver is not seized. Apply a 9V
battery to the driver terminals and listen for any rubbing or stuck coils.
If the driver checks out fine, further troubleshooting of the system is required.
Driver Replacement
High-Frequency Driver (A-2302)
Tools Required:
flathead screwdriver, 5/32 Allen wrench,
10mm wrench, utility knife, silicone
1�
Remove the right-most rear access door using the
flathead screwdriver.
2�
Remove the internal speaker cabinet’s back panel:
a�
If there is a silicone seal, cut it with a utility knife.
b�
Remove all screws with 5/32 Allen wrench.
c�
Pull the internal cabinet panel off.
3�
Identify bad driver(s) by following
.
4�
Remove the bad driver(s):
Figure 26:
Mid-Frequency Driver & Meter
Figure 27:
A-2302 Removal
Summary of Contents for SPORTSOUND 1500HD GEN II
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