JBL GT5-A402 (serv.man3) Service Manual ▷ View online
GT5-A402
2 CHANNEL POWER AMPLIFIER
SERVICE MANUAL
JBL Consumer Products
250 Crossways Park Dr.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0
3/2008
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
BASIC TROUBLESHOOTING……………………………5
EXPLODED VIEW/PARTS LIST…….….….…………....6
AMPLIFIER BLOCK DIAGRAM…………………….……7
P.C.B. DRAWINGS….………………………...…….…….8
ELECTRICAL PARTS LIST ..……….……….…….……10
IC/TRANSISTOR PINOUTS..…………………………….13
SCHEMATICS……………..………….…….………..…...14
GT5-A402 Specifications
Output Power:
40W RMS x 2 channels @ 4 ohms; ≤1% THD + N
(14.4V supply)
60W RMS x 2 channels @ 2 ohms; ≤1% THD + N
120W RMS x 1 channel (bridged) @ 4 ohms; ≤1% THD + N
Signal-to-noise ratio:
85dBA (reference 1W into 4 ohms)
101dBA (reference rated power into 4 ohms)
Total Peak power:
240W
Frequency response:
10Hz – 100kHz (–3dB)
THD+N 1KHz LPF=22KHz
≤0.05% (rated power @ 4 ohms)
Channel Separation
≥50db
Input
Impedance 15kΩ
Maximum input signal:
6.0V
Maximum
sensitivity:
200mV
Hi-Pass, Low Pass X-over Limits
32Hz – 320Hz ±20% 12dB/oct
Bass Boost @ 50Hz
6dB
DC
Offset
<30mV
Output
regulation:
38dB
Idle Current @ 4 ohms
0.46A
Max Current Draw
≤11A
Remote Operating Voltage
5V
Turn-on
delay
time
3
sec
Circuit Protection
Temperature (85±5C), Short circuit, Operating voltage range (8-16V)
Dimensions:
2
1/8
x
7
1/2 x 9 1/4" (54 x 191 x 235mm)
Fuse:
15A
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
GT5-A402
2
GT5-A402
PACKAGING
1x
4x
1x
9-1/4"
235mm
2-1/8"
54mm
7-1/2"
191mm
AB
C
D
E
A
B
C
3
GT5-A402
