JBL Grand Touring Series GTO504, Service Manual

Page: 8 / 27

1 2 3 4 5 6
A
B
C
D
6 5 4 3 2 1
D
C
B
A
INPUT RL
AUX OUT L
AUX OUT R
INPUT RR
OP
OP
OP
OP
1
3
2
A
1
3
2
A
OP
OP
10 100K 32 320
MODE HP/FLAT/LP
VARIABLE LPF/HPF
32Hz-320Hz/12dB
10 100K 32 320
MODE HP/FLAT/LP
VARIABLE LPF/HPF
32Hz-320Hz/12dB
10 100K 50
10 100K 50
BASS BOOST
VARIABLE
0dB-6dB/50Hz
BASS BOOST
VARIABLE
0dB-6dB/50Hz
AMP
AMP
INPUT L
INPUT R
OP
OP
1
3
2
A
1
3
2
A
OP
OP
10 100K 32 320
MODE HP/FLAT/LP
VARIABLE LPF/HPF
32Hz-320Hz/12dB
10 100K 32 320
MODE HP/FLAT/LP
VARIABLE LPF/HPF
32Hz-320Hz/12dB
AMP
AMP
MAIN AMP
FRONT L
MAIN AMP
FRONT R
MAIN AMP
REAR RL
MAIN AMP
REAR RR
4 ohm/2 ohm
4 ohm/2 ohm
speaker
speaker
speaker
BTL-4ohm
4 ohm/2 ohm
4 ohm/2 ohm
speaker
speaker
speaker
BTL-4ohm
power supply Battery
+VCC
-VCC
+15V
-15V
7
GTO504