Read JBL GTO-3EZ Service Manual online
INPUT LEVEL
min-max
crossover
power supply
1
2
3
GROUND
REM
+12V
bass boost
40Hz-200Hz 12dB/ oct
45Hz 0-12dB
Top-mounter controls
SUB input
REMOTE
LEVEL CONTROL
1
2
3
4
to REMOTE
PTC
simple LED(s)
Orange
Red
green
power(Orange)/protection(Red) LED
S1
P1
S2
S3
S4
S6
S7
S9
S10
S8
S
D
G
S
D
G
Driver
Integrator
comparator
LOW pass
SPK
2
ȍ/4ȍ
320Hz
40Hz
10Hz
10Hz
45Hz
320Hz
Limiter
GTO 3: 30A*2
mode: GTO 3
P2
auto ON/OFF
FL
1
2
3
A
input mode
FL/FR
S
S11
6
7
5
8
B
LO
Hi
Hi2
input selector
SUB in
SUB in
FR
INPUT LEVEL
min-max
crossover
40Hz-200Hz 12dB/ oct
PTC
C2
C3
C5
LP/HP pass
C6
2
3
1
4
A
HP
LP
Flat
C8
RR- out
2
ȍ/4ȍ
100kHz
200Hz
40Hz
10Hz
Class AB Audio Power Amplifier
variable crossover
INPUT LEVEL
min-max
crossover
40Hz-200Hz 12dB/ oct
PTC
simple LED(s)
Orange
Red
green
D1
D2
D3
D5
D9
LP/HP pass
D6
2
3
1
4
A
HP
LP
Flat
D8
RL+ out
2
ȍ/4ȍ
FL input
100kHz
200Hz
40Hz
10Hz
Class AB Audio Power Amplifier
variable crossover
SUB in
6
7
5
8
B
LO
Hi
Hi2
input selector
C1
FR input
SUB in
6
7
5
8
B
LO
Hi
Hi2
input selector
Block Diagram
GTO-3EZ
32
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