JBL GT5-A604, Service Manual

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- CONTENTS -
SPECIFICATIONS ………………………………………..1
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
P.C.B. DRAWINGS….………………………...…….……11
IC/TRANSISTOR PINOUTS..…………………….….…..15
SCHEMATICS……………..……………….………..…...16
GT5-A604 Specifications
Output Power: 60W RMS x 4 channels @ 4 ohms; ≤ 1% THD + N
(14.4V supply) 80W RMS x 4 channels @ 2 ohms; ≤ 1% THD + N
160W RMS x 2 channel (bridged) @ 4 ohms; ≤ 1% THD + N
Signal-to-noise ratio: 85dBA (reference 1W into 4 ohms)
102dBA (reference rated power into 4 ohms)
Total Peak power: 640W
Frequency response: 10Hz – 100kHz (–3dB)
THD+N 1KHz LPF=22KHz ≤ 0.05% (rated power @ 4 ohms)
Channel Separation ≥ 50db
Input Impedance 15k Ω
Maximum input signal: 6.0V
Maximum sensitivity: 200mV
Hi-Pass, Low Pass X-over Limits 32Hz – 320Hz ±20% 12dB/oct
Bass Boost @ 50Hz 0-6dB
DC Offset <30mV
Output regulation: 40dB
Idle Current @ 4 ohms 1.1A
Max Current Draw ≤ 35A
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 9 1/4 x 12" (54 x 235 x 305mm)
Fuse: 2 x 20A
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.
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GT5-A604