27
In Case of Difficulty
Power-on light does not come on.
• Head unit not on; turn the head unit on.
•
Ground wire is disconnected or
defective; check for continuity with an
ohmmeter between the GTS100’s
ground terminal and a known chassis
ground point.
•
Battery wire is disconnected or
defective; check for approximately
+12 volts between the GTS100’s
Battery and Ground terminals.
•
Blown fuse; check the GTS100’s
20 amp fuse located on the endpanel
near the power connector. If it is blown
replace it with an identical one. If the
new fuse blows immediately, then check
all the wiring connections. If no fault is
found, consult your JBL dealer.
•
Remote-on wire between the head unit
and the GTS100 is disconnected or
defective; check for +12 volts between
the GTS100 remote on wire and the
ground wire with the head unit on.
•
Head unit connected to speaker-level
input is not BTL high-power type and no
remote wire is connected; connect
remote turn-on wire to sw12V
source.
Remote-on light is illuminated, but no
•
Incorrect switch settings; make sure
sound is heard from some or all of the
that all switches (input mode, line, and
speakers.
crossover) are in their correct positions
for your system configuration.
•
Incorrectly connected or shorted
speaker wires; check for shorts in
wiring.
•
Defective or disconnected audio cables;
check for continuity and replace if
necessary.
JBL 1394 Manual 7/17/98 11:49 AM Page 27
