Read JBL GTO 1004 Service Manual online
GTO1004
4 CHANNEL POWER AMPLIFIER
SERVICE MANUAL
JBL Consumer Products
250 Crossways Park Dr.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev
1
1/200
8
Released 2007
Discontinued XXXX
Discontinued XXXX
- CONTENTS -
SPECIFICATIONS ………………………………………..1
PACKING……………………………………………..…....2
PACKING……………………………………………..…....2
CONTROL/INSTALLATION DRAWINGS………………3
CONTROL/INSTALLATION INSTRUCTIONS………....4
BASIC TROUBLESHOOTING……………………………5
EXPLODED VIEW/PARTS LIST…….….….…………....6
AMPLIFIER BLOCK DIAGRAM…………………….……7
ELECTRICAL PARTS LIST ..……….……….…….…….8
ELECTRICAL PARTS LIST ..……….……….…….…….8
P.C.B. DRAWINGS….………………………...…….……12
IC/TRANSISTOR PINOUTS..…………………….….…..18
SCHEMATICS……………..……………….………..…...19
GTO 1004 Specifications
Output Power:
100W RMS x 4 channels @ 4 ohms; ≤1% THD + N
(14.4V supply)
150W RMS x 4 channels @ 2 ohms; ≤1% THD + N
320W
RMS
x
2
channel
(bridged)
@
4
ohms;
≤1% THD + N
Signal-to-noise ratio:
85dBA (reference 1W into 4 ohms)
104dBA (reference rated power into 4 ohms)
104dBA (reference rated power into 4 ohms)
Dynamic power:
180W @ 2 ohms
Frequency response:
10Hz – 100kHz (–3dB)
THD+N 1KHz LPF=22KHz
≤0.05% (rated power @ 4 ohms)
Channel Separation
≥45db (full rated power)
Input
Impedance
>20K
ohms
Maximum input signal:
6.0V
Maximum sensitivity:
100mV
Hi-Pass, Low Pass X-over Limits
32Hz – 320Hz ±20%
Bass Boost @ 50Hz
0-12dB
DC Offset
<30mV
Output regulation:
.03dB @ 4 ohms
Idle Current @ 4 ohms
1.5A
Max Current Draw
<70A @ 2 ohms both channels driven
Remote Operating Voltages
ON 5V OFF 4V
Turn-on delay time
2-3 sec
Circuit Protection
Temperature (85±5C), Short circuit,
Operating voltage range
(8-16V)
Dimensions:
18 9/16 x 10 3/8 x 2 1/8” (470 x 263 x 53mm)
Fuses:
(3) x 25A
JBL continually strives to update and improve existing products, as well as create new ones. The specifications
and details in this and related JBL publications are therefore subject to change without notice.
1
GTO1004
GTO1004
2
3x
4x
1x
56
01
2
7ABC
9
E
3F
8
AB
C
D
E
F
18-9/16"
470mm
10-3/8"
263mm
2-1/8"
53mm
4
D
G
±ÈÀý
1.000
1.000
H
A
B
C
D
3
GTO1004
