JBL GT5-A3001 User manual

GT5-A3001
1 CHANNEL POWER AMPLIFIER
SERVICE MANUAL
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0 3/2008
Released 2007
Discontinued XXXX

- 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..…………………….….…..13
SCHEMATICS……………..……………….………..…...14
GT5-A3001 Specifications
Output Power: 175W RMS x1 channels @ 4 ohms; ≤1% THD + N
(14.4V supply) 225W RMS x 1 channels @ 2 ohms; ≤1% THD + N
300W RMS x 1 channel @ 1 ohm; ≤1% THD + N
Signal-to-noise ratio: 95dBA (reference 1W into 4 ohms)
120dBA (reference rated power into 4 ohms)
Total Peak power: 600W
Frequency response: 10Hz – 300Hz (–3dB)
THD+N 1KHz LPF=22KHz ≤0.05% (rated power @ 4 ohms)
Input Impedance 10kΩ
Maximum input signal: 6.0V
Maximum sensitivity: 200mV
Hi-Pass, Low Pass X-over Limits 32Hz – 320Hz ±20% 12dB/oct
DC Offset <30mV
Output regulation: 46dB
Idle Current @ 4 ohms 400mA
Max Current Draw ≤20A
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-A3001

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GT5-A3001

ABCD
A
2x
4x 1x
9-1/4"
235mm
2-1/8"
54mm
12"
305mm
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GT5-A3001

Installation Warnings and Tips
•Disconnect the negative (–) lead from your vehicle’s
battery.
•At the installation sites, locate and make a note of
all fuel lines, hydraulic brake lines, vacuum lines
and electrical wiring. Use extreme caution when
cutting or drilling in and around these areas.
•Choose a safe mounting location away from moisture.
•Make sure there is sufficient air circulation at the
mounting location for the amplifier to cool itself.
•Mount the amplifier, using the supplied hardware.
Specifications
•175W RMS x 1 channel @ 4 ohms and ≤1% THD + N*
•225W RMS x 1 channel @ 2 ohms, 14.4V supply and
≤1% THD + N*
•300W RMS x 1 channel @ 1 ohm, 14.4V supply and
≤1% THD + N*
•THD + N: 0.05% (rated power @ 4 ohms)*
•Signal-to-noise ratio: 95dBA
(reference 1W into 4 ohms)*
•Signal-to-noise ratio: 120dBA
(reference rated power into 4 ohms)
•Frequency response: 10Hz – 300Hz (–3dB)*
• Total peak power: 600 watts
*CEA-2006A-compliant
0Speaker Output Connectors
•Connect the subwoofer to these terminals,
observing proper polarity. Either + or –
terminal may be used. Minimum total
impedance is 1 ohm.
1Fuses
•Replace only with the same type and rating.
2Power Input Connectors
•+12V: Connect to the positive terminal of the
vehicle’s battery. 8 AWG wire is recommended.
Install an appropriate fuse holder and fuse (40A
minimum) within 18 inches of the battery. Make
sure the wire is not damaged or pinched during
installation. Install protective grommets when
routing wires through the firewall or other sheet
metal.
•GND: Connect to the vehicle’s chassis. Refer to
the picture below.
•REM: Connect to the “Remote Out” lead from
the source unit or to a source of switched
12V+ (ACC).
3Aux Output Connectors (RCA)
•Nonfiltered pass-through output. Connect to
the input of an additional amplifier.
4Input Connectors (RCA)
•Connect to the RCA outputs from the source unit
or signal processor.
5Input-Level Control
•Used to match the input level of the amplifier
to the output level of the source unit.
•See 9for the adjustment procedure.
6Protect LED
•Illuminated under any of the following fault
conditions: battery over/under voltage, short
circuit in speaker wires, amplifier is too hot,
amplifier’s output circuit has failed (DC voltage
is present in the amplifier’s output).
7Low-Pass Filter Frequency Control
•12dB/octave low-pass filter,
variable from 32Hz to 320Hz.
•See Afor the adjustment procedure.
8Power On LED
•Illuminated when the amplifier is on.
9Setting Input Level
ATurn Input Level control counterclockwise to
6V (minimim).
BWith a dynamic music track playing, turn the
head unit’s volume control to the 3/4 position.
CTurn Input Level control clockwise until the
bass output is proportionate to the output of
the high-frequency speakers, according to
your preference.
DInput level is now adjusted correctly.
ASetting the Crossover
ACrossover setting for subwoofers.
Note: Acceptable frequency ranges are indicated
in gray.
GT5-A3001 CAR AUDIO SUBWOOFER AMPLIFIER OWNER’S MANUAL
Factory Bolt Ring Connector
Ground Wire
Note: Remove any paint
below ring connector.
Star Washer
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GT5-A3001

Amplifier Troubleshooting Guide
1. Status LED on Amplifier not Lit - Head Unit (Source) Turned ON
Verify: A. Remote turn-on wire from source to amplifier has proper voltage
B. Power (B+) connections at amplifier, terminal blocks, and battery are secure
C. Ground (GND) connections at amplifier and vehicle chassis are secure
D. Battery B+ fuse (if used) is OK
E. Amplifier fuse is OK
F. B+ at battery and B+ at amplifier has proper voltage
2. Status LED’s Lit, No Output from Speakers in Normal Operating Condition
Verify: A. RCA cables from amplifier to source are securely connected
B. Volume adjustment on amplifier is correctly adjusted
C. Source is ON and playing
3. Engine Noise From Speaker(s)
Turn source OFF, Disconnect RCA cables at amplifier. If noise stops, check equipment & cables leading
to amplifier.
Verify: A. RCA cables are of good quality with no breakage to internal shields
B. RCA cables from source to amplifier are not run alongside any power cables
4. Amplifier Output Distorted Music
Verify: A. Source output music to amplifier is not distorted
B. Source output sensitivity is correctly adjusted
5. Amplifier Shuts Down, Green LED’s are Lit - Amplifier is in Thermal Protection Mode
Verify: A. Amplifier is mounted with adequate air circulation around heatsinks or vents
B. Amplifier is not mounted under carpet or sealed enclosure
C. Speakers meet correct impedance for application (mono or stereo hookup)
6. Amplifier Does Not Turn ON, and Red LED is Lit Amplifier (and not Connected to a Shorted Speaker)
Verify: A. Speaker crossover (if used) is not defective
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GT5-A3001

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GT5-A3001

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GT5-A3001

GT5-A3001 Electrical Parts List
Part Number Qty Reference Designator
Semiconductors
TR-KTA1266GR TRANS SMALL SIGNAL PNP "TO-92"KTA1266GR 4 Q03，04，08，09
TR-KTA1268GR TRANS SMALL SIGNAL PNP "TO-92"KTA1268GR 5 Q06,102,103,107,108
TR-KTC3198BL TRANS SMALL SIGNAL NPN,TO-92KTC3198BL 1 Q05
TR-KTC3198GR TRANS SMALL SIGNAL NPN,TO-92KTC3198GR 4 Q02,07,131,132
TR-KTC3200GR TRANS SMALL SIGNAL NPN,TO-92KTC3200GR 4 Q104,105,106,130
TR-KTA1023Y TRANS SMALL SIGNAL PNP "TO-92"KTA1023Y 4 Q01,113,122,125
TR-KTC1027Y TRANS SMALL SIGNAL NPN,TO-92KTC1027Y 4 Q109,112,119,123
DIODE-1N4148 DIODE SWITCHING SIGNAL1N4148 10 D03,04,05,08,09,101,102,103,104,105
DIODE-1N4004 DIODE RECTIFIER1N4004 1 D01
DIODE-FR154 DIODE FAST RECOVERYFR154/1504 4 D11,12,13,14
DIODE-1N4744 DIODE ZENER, 15V/1W1N4744 2 D15,16
IC-TL494CN IC PWM IC,DIP-16TL494CN 1 U01
IC-NJM2068D IC DUAL OP AMP,DIP-08 NJM2068D 4 U101,102,103,104
FET-K30AGR FET N-CH JFET,TO-92KTK30AGR 2 Q17,101
FET-50N60P FET N-CH POWER MOS FET,TO-220KEC50N60P 6 Q11 12 13 14 15 16
TR-TIP35CA TRANS AUDIO POWER NPN,TO-3P TIP35CA 3 Q111,116,124
TR-TIP36CA TRANS AUDIO POWER PNP,TO-3P TIP36CA 3 Q117,120,126
TR-KTC3200GR1 TRANS SMALL SIGNAL NPN,TO-92KTC3200GR 1 Q110
DIODE-1N5404 DIODE RECTIFIER1N5404 1 D02
DIODE-YG225D2 DIODE FAST RECOVERY, TO-220YG225D2 2 D06 07
LED1 LED ACYLE 3.0 AWG#24,RED/BLACK200m/m 1 LOGO BACKLIGHT
LED0 LED 3PHI,GREEN & REDL-H322005GB 1 LED01
Capacitors - see legend last page
CAP0501R0-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 1/50V 1 C129
CAP0502R2-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 2.2/50V 2 C120,153
CAP0504R7-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 4.7/50V 2 C112,212
CAP016100-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 10/16V 3 C02,100,200
CAP025100-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 10/25V 1 C09
CAP050100-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 10/50V 1 C39
CAP016220-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 22/16V 4 C101,102,201,202
CAP016470-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 47/16V 3 C04, 06,107
CAP025470-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 47/25V 2 C10,125
CAP016101-E CAPACITOR ELECTROLYTIC"MHA" ,5*11m/m 100/16V 3 C05, 07 12
CAP025221-E CAPACITOR ELECTROLYTIC"MHA/SD"220/25V 1 C42
CAP025331-E CAPACITOR ELECTROLYTIC"MHA/SD"330/25V 1 C43
CAP035101-E CAPACITOR ELECTROLYTIC"MHA/SD"100/35V 2 C40 41
CAP016221-E CAPACITOR ELECTROLYTIC"MHA" ,6*12m/m220/16V 1 C142
CAP100102-M CAPACITOR MYLAR,100V 5%102(M) 2 C11 31
CAP100683-M CAPACITOR MYLAR,100V 5%683(M) 1 C110
CAP100104-M CAPACITOR MYLAR,100V 5%,BOX or TL104(M) 6 C25 26 36 37 109 261
CAP063105-M CAPACITOR MYLAR,63V 5%,BOX or TL105(M) 1 C01
CAP050100-C CAPACITOR DISK TYPE, CERAMIC, 50V"NPO" 10P 2 C105.205
CAP050220-C CAPACITOR DISK TYPE, CERAMIC, 50V"NPO" 22P 7 C103,104,111,203,204,211,38
CAP050470-C CAPACITOR DISK TYPE, CERAMIC, 50V"NPO" 47P 2 C106,130
CAP050680-C CAPACITOR DISK TYPE, CERAMIC, 50V"NPO" 68P 1 C123
CAP050331-C CAPACITOR DISK TYPE, CERAMIC, 50V"NPO" 330P 1 C128
CAP050271-C CAPACITOR DISK TYPE, CERAMIC, 50V 270P 2 C131,132
CAP050102-C CAPACITOR DISK TYPE, CERAMIC, 50V 102P 2 C108,124
CAP050473-C CAPACITOR DISK TYPE, CERAMIC, 50V 473P 1 C24
CAP050104-C CAPACITOR DISK TYPE, CERAMIC, 50V 104P 4 C03 08 23 140
CAP050471-E CAPACITOR ELECTROLYTIC"MHA" 470/50V 2 C32 33
CAP025222-E CAPACITOR ELECTROLYTIC"WL" 2200/25V 2 C21 22
CAP050222-E CAPACITOR ELECTROLYTIC"SHL" 2200/50V 2 C34 35
CAP-050101E CAPACITOR ELECTROLYTIC"MHA" 100/50V 2 C122 127
Resistors
RES68001/8-F RESISTOR METAL FILM 1/8WF 680 1 R109
RES56001/8-F RESISTOR METAL FILM 1/8WF 560 1 R112
Description
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GT5-A3001

Part Number Qty Reference Designator
Description
RES12011/8-F RESISTOR METAL FILM 1/8WF 1.2K 1 R124
RES47011/8-F RESISTOR METAL FILM 1/8WF 4.7K 3 R106,107,09
RES56011/8-F RESISTOR METAL FILM 1/8WF 5.6K 3 R113,114,121
RES94011/8-F RESISTOR METAL FILM 1/8WF 9.4K 2 R105,205
RES10021/8-F RESISTOR METAL FILM 1/8WF 10K 5 R111,115,116,215,216
RES12021/8-F RESISTOR METAL FILM 1/8WF 12K 1 R273
RES22021/8-F RESISTOR METAL FILM 1/8WF 22K 2 R100,200
RES47021/8-F RESISTOR METAL FILM 1/8WF 47K 8 R101,102,103,104,201,202,203,204
RES10521/8-F RESISTOR METAL FILM 1/8WF 10.5K 1 R08
RES1001/8-J RESISTOR CARBON FILM 1/8W 10 7 R15,142,143,151,152,156,157
RES4701/8-J RESISTOR CARBON FILM 1/8W 47 7 R33 34 35 38 39 40 128
RES1011/8-J RESISTOR CARBON FILM 1/8W 100 1 R108
RES1211/8-J RESISTOR CARBON FILM 1/8W 120 1 R132
RES5611/8-J RESISTOR CARBON FILM 1/8W 560 3 R140,150,158
RES6811/8-J RESISTOR CARBON FILM 1/8W 680 1 R123
RES7511/8-J RESISTOR CARBON FILM 1/8W 750 1 R16
RES8211/8-J RESISTOR CARBON FILM 1/8W 820 1 R131
RES1021/8-J RESISTOR CARBON FILM 1/8W 1K 9 R117,118,122,217,218,07 17 32 37
RES1521/8-J RESISTOR CARBON FILM 1/8W 1.5K 4 R25,125,129,160
RES4721/8-J RESISTOR CARBON FILM 1/8W 4.7K 4 R01,02,11,12
RES8221/8-J RESISTOR CARBON FILM 1/8W 8.2K 2 R05 R137
RES1031/8-J RESISTOR CARBON FILM 1/8W 10K 5 R13,14 45 46,272
RES1231/8-J RESISTOR CARBON FILM 1/8W 12K 1 R127
RES1531/8-J RESISTOR CARBON FILM 1/8W 15K 4 R20,21,110,161
RES2231/8-J RESISTOR CARBON FILM 1/8W 22K 4 R22,18 24 126
RES3331/8-J RESISTOR CARBON FILM 1/8W 33K 1 R19
RES4331/8-J RESISTOR CARBON FILM 1/8W 43K 1 R10
RES4731/8-J RESISTOR CARBON FILM 1/8W 47K 1 R23
RES5631/8-J RESISTOR CARBON FILM 1/8W 56K 2 R04,165
RES1041/8-J RESISTOR CARBON FILM 1/8W 100K 2 R119,219
RES2241/8-J RESISTOR CARBON FILM 1/8W 220K 1 R44
RES4341/8-J RESISTOR CARBON FILM 1/8W 430K 1 R06
RES2211/4-J RESISTOR CARBON FILM 1/4WJ 220/0.25W 2 R31 36
RES4R71/2-J RESISTOR METAL FILM 1/2WJ 4.7/0.5W 1 R261
RES1001/2-J RESISTOR METAL FILM 1/2WJ 10/0.5W 3 R03,138,145
RES1011/2-J RESISTOR METAL FILM 1/2WJ 100/0.5W 2 R133,134
RES2421/2-J RESISTOR METAL FILM 1/2WJ 2.4K/0.5W 1 R47
RES1012-J RESISTOR MOR, 2WJ 100/2W 1 R41
RES1512-J RESISTOR MOR, 2WJ 150/2W 2 R42 43
RES6812-J RESISTOR MOR, 2WJ 680/2W 1 R264
RES0R15-J RESISTOR MOR, 5WJ 0.1/5W 6 R147,148,153,154,159,188
3B20Kx2 LEVEL POT B20Kx2V12L5 15S-3B20Kx2 1 VR101
15C50Kx2 FREQ POT 15C50Kx2V12L5 15S-15C50Kx2 1 VR102
Miscellaneous
RET94011/8-F THERMISTOR DISK TYPE,NTC 50KFTD5-350 1 TH01
CORE-GT3001 TRANSFORMER 37PHI,ISU37PHI 6t(0.7x15):19t(0.7x5)+9t(0.7x1) 1 T01
CORECL-310 INDUCTOR BAR CORECL-310 1 L01
CORECL-510 INDUCTOR BAR CORECL-510 2 L02 03
TER-3P 3P TERMINAL PLATED,3P, POWER JSZ3-02 1 P01
TER-4P 4P TERMINAL PLATED,4P, SPEAKER JSZ4-03 1 P02
AV4-8.4-13A RCA JACK PLATED(TOP:WHITE, BTM:RED)AV4-8.4-13A 1 RCA01
20PWF-9404 FUSE HOLDER 2PWF-9404 1 FH01
FUSE-20A FUSE FUSE 20A 1 FH01
PLAL0640-02P 2P NEILSBED 2PLAL0640-02P 1 CONN01
JUMPER-37MM cuprum NI-PLATE37m/m 1 BJ01
JUMPER-55MM cuprum NI-PLATE55m/m 1 BJ02
W-60MM GROUND 1007,AWG#24,4.5PHI RING LUG60m/m 1 W1
FIBER8-200 SLIP FIBER, 200.0x8.0x0.5t 0.5 for FET
FIBER6-200 SLIP FIBER, 200.0x6.0x0.5t 0.5 for POWER TR
HEA-GT3001 HEATSINK AL/Die-casting L=290.0mm 1 BLACK SPRAY
END CAP END CAP ABS(XR401) 2 SILVER(8400C) SPRAY END CAP
PAN-RGT3001 FRONT PANEL EGI,1.2t 1 BLACK SPRAY / SILVER SILK 1˚
PAN-FGT3001 REAR PANEL EGI,1.2t 1 BLACK SPRAY / SILVER SILK 1˚
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GT5-A3001