JBL MA6002 (serv.man2) Service Manual ▷ View online
Marine Models:
MA6002 (
2 CHANNEL)
MA6004 (
4 CHANNEL)
Power Amplifiers
Service Manual
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797
Rev0 11/06
- CONTENTS -
MA6002/6004 BASIC SPECIFICATIONS .…..…………..1
MA6002 DETAILED SPECIFICATIONS ……………..…..2
MA6004 DETAILED SPECIFICATIONS ….…….………..3
MA6002 PACKING……..………………….….….….……...4
MA6004 PACKING…………………………………..………5
CONNECTIONS……………………………........................6
OPERATION ……..………………………………….….…...9
BASIC TROUBLESHOOTING…………………….………..9
MA6002 EXPLODED VIEW/PARTS LIST……………….10
MA6004 EXPLODED VIEW/PARTS LIST.......................11
MA6002 BLOCK DIAGRAM………………………….……12
MA6004 BLOCK DIAGRAM………………………….……13
MA6002 ELECTRICAL PARTS LIST ..…… ……...…..…14
MA6004 ELECTRICAL PARTS LIST ..…… ….…………17
MA6002 P.C.B. DRAWINGS……………………..….…….20
MA6004 P.C.B. DRAWINGS………………………..….….22
MA6002/MA6004 IC/TRANSISTOR PINOUTS………….24
MA6002 SCHEMATICS………………………..…….……25
MA6004 SCHEMATICS…………………………..….……28
MA6002 DETAILED SPECIFICATIONS ……………..…..2
MA6004 DETAILED SPECIFICATIONS ….…….………..3
MA6002 PACKING……..………………….….….….……...4
MA6004 PACKING…………………………………..………5
CONNECTIONS……………………………........................6
OPERATION ……..………………………………….….…...9
BASIC TROUBLESHOOTING…………………….………..9
MA6002 EXPLODED VIEW/PARTS LIST……………….10
MA6004 EXPLODED VIEW/PARTS LIST.......................11
MA6002 BLOCK DIAGRAM………………………….……12
MA6004 BLOCK DIAGRAM………………………….……13
MA6002 ELECTRICAL PARTS LIST ..…… ……...…..…14
MA6004 ELECTRICAL PARTS LIST ..…… ….…………17
MA6002 P.C.B. DRAWINGS……………………..….…….20
MA6004 P.C.B. DRAWINGS………………………..….….22
MA6002/MA6004 IC/TRANSISTOR PINOUTS………….24
MA6002 SCHEMATICS………………………..…….……25
MA6004 SCHEMATICS…………………………..….……28
Basic Specifications
7
MA6002
• 60W RMS x 2 channels at 4 ohms and
• 60W RMS x 2 channels at 4 ohms and
≤1% THD + N
• Signal-to-noise ratio: 84dBA (reference 1W into 4 ohms)
• 80W RMS x 2 channels at 2 ohms, 14.4V supply and
• 80W RMS x 2 channels at 2 ohms, 14.4V supply and
≤1% THD + N
• 160W RMS x 1 channel at 4 ohms, 14.4V supply and
≤1% THD + N
• Dynamic power: 160W at 2 ohms
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 100mV
• Output regulation: – 0.03dB at 4 ohms
• Dimensions (L x W x H): 9" x 10-1/4" x 2-3/16" (229mm x 261mm x 56mm)
• Fuses: 25A x 1
MA6004
• 60W RMS x 4 channels at 4 ohms and
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 100mV
• Output regulation: – 0.03dB at 4 ohms
• Dimensions (L x W x H): 9" x 10-1/4" x 2-3/16" (229mm x 261mm x 56mm)
• Fuses: 25A x 1
MA6004
• 60W RMS x 4 channels at 4 ohms and
≤1% THD + N
• Signal-to-noise ratio: 80dBA (reference 1W into 4 ohms)
• 80W RMS x 4 channels at 2 ohms, 14.4V supply and
• 80W RMS x 4 channels at 2 ohms, 14.4V supply and
≤1% THD + N
• 160W RMS x 2 channels at 4 ohms, 14.4V supply and
≤1% THD + N
• Dynamic power: 145W at 2 ohms
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 100mV
• Output regulation: – 0.03dB at 4 ohms
• Dimensions (L x W x H): 13-1/4" x 10-1/4" x 2-3/16" (337mm x 261mm x 56mm)
• Fuses: 25A x 2
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 100mV
• Output regulation: – 0.03dB at 4 ohms
• Dimensions (L x W x H): 13-1/4" x 10-1/4" x 2-3/16" (337mm x 261mm x 56mm)
• Fuses: 25A x 2
1
MARINE
series
MA6002/6004
MA6002 MARINE AMPLIFIER SPECIFICATIONS
TEST VOLTAGE...14.4 +0.1V
Dynamic Power
Output Regulation
Output Regulation
Dimensions (L x W x H): 9" x 10-1/4" x 2-3/16"
(229mm x 261mm x 56mm)
Fuses: 25A x 1
Damping Factor (4ohm):
6.395
160W @ 2 ohms
Nominal
Remarks
0.03dB @ 4 ohms
4ohm loads(stereo mode)for each . ch
@<1.0%THD
(Unit:W)(LPF=22K)
@<1.0%THD
(Unit:W)(LPF=22K)
1KHZ
≥60W x 2
2ohm loads(stereo mode)for each .ch
@<1.0%THD
(Unit:W)(LPF=22K)
@<1.0%THD
(Unit:W)(LPF=22K)
1KHZ
≥80W x 2
BTL/4ohms(mono mode)
@<1.0%THD(Unit;W)
LPF=22K
@<1.0%THD(Unit;W)
LPF=22K
1KHZ
≥160W x 1
THD and 1MD@Reference
Power 4 ohm loads(Unit:%)
LPF=22K
Power 4 ohm loads(Unit:%)
LPF=22K
1KHZ
≤0.3%
THD and 1MD@Reference
Power 2 ohm loads(Unit:%)
LPF=22K
Power 2 ohm loads(Unit:%)
LPF=22K
1KHZ
≤0.3%
THDand 1MD@reference
Power 4ohms BTL loads
(Unit:%)(LPF=22KHz)
Power 4ohms BTL loads
(Unit:%)(LPF=22KHz)
1KHZ
≤0.3%
Channel Separation
@full rated power (+80KHZ)
@full rated power (+80KHZ)
1KHZ
≥45dB
Full rated power Disortion1KHz LPF=22KHz
≤0.1%
Signal/Noise a: 1 watt rate
b: full rated power (dB)
b: full rated power (dB)
≥90
1V signal input
Input Sensitivity Low Level Input( v)
@:full rated power
@:full rated power
100mV-6V
±20%
Yes
Frequency response (Unit:-3dB)
10HZ~30KHZ
High-Pass Crossover Frequency limits +20%
32HZ~320HZ
Turn on delay time (Seconds)
Low-Pass Crossover Frequency limits +20%
32HZ~320HZ
Bass Boost:(Unit:dB) @45HZ (±5Hz )
0~6dB
±1dB
Idle Current ( @4ohm)
0.5A
±0.15A
MAX current : rated power (All channel 2ohm loads)
≤23A
10.5~16V
Circuit Protection a. Temperature
b. Speaker Short Circuit
c. Operating Voltage Range
b. Speaker Short Circuit
c. Operating Voltage Range
75+5℃
2~3
Remote Operating Voltages:
ON 5V OFF 4V
±1V
DC Offset:
≤30mV
Damping Factor (4ohm):
>200
2
MARINE
series
MA6002
MA6004 MARINE AMPLIFIER SPECIFICATIONS
TEST VOLTAGE...14.4 +0.1V
Dynamic Power
Output Regulation
Output Regulation
(337mm x 261mm x 56mm)
Fuses: 25A x 2
Dimensions (L x W x H): 13-1/4" x 10-1/4" x 2-3/16"
Effective Damping Factor (4ohm):
6.395
145W @ 2 ohms
Nominal
Remarks
0.03dB @ 4 ohms
4ohm loads(stereo mode) for each . ch
@<0.5%THD
(Unit:W)(LPF=22K)
@<0.5%THD
(Unit:W)(LPF=22K)
1KHZ
≥50W*4
2ohm loads (stereo mode) for each .ch
@<0.5%THD
(Unit:W)(LPF=22K)
@<0.5%THD
(Unit:W)(LPF=22K)
1KHZ
≥75W*4
BTL/4ohms (mono mode)
@<0.5%THD(Unit;W)
LPF=22K
@<0.5%THD(Unit;W)
LPF=22K
1KHZ
≥150W*2
THD and 1MD@Reference
Power4 ohm loads(Unit:%)
LPF=22K
Power4 ohm loads(Unit:%)
LPF=22K
1KHZ
≤0.5%
THD and 1MD@Reference
Power 2 ohm loads(Unit:%)
LPF=22K
Power 2 ohm loads(Unit:%)
LPF=22K
1KHZ
≤0.5%
THDand 1MD@reference
Power 4ohms BTL loads
(Unit:%)(LPF=22KHz)
Power 4ohms BTL loads
(Unit:%)(LPF=22KHz)
1KHZ
≤0.5%
Channel Separation
@full rated power (+80KHZ)
@full rated power (+80KHZ)
1KHZ
≥45dB
Full rated power Disortion1KHz LPF=22KHz
≤0.2%
Signal/Noise a: 1 watt rate
b: full rated power (dB)
b: full rated power (dB)
≥90
1V signal input
Input Sensitivity Low Level Input( v)
@:full rated power
@:full rated power
100mV-6V
±20%
Yes
Frequency response (Unit:-3dB)
10HZ~30KHZ
High-Pass Crossover Frequency limits +20%
32HZ~320HZ
Turn on delay time (Seconds)
Low-Pass Crossover Frequency limits +20%
32HZ~320HZ
Bass Boost:(Unit:dB) @45HZ (±5Hz )
0~6dB
±1dB
Idle Current ( @4ohm)
0.6A
±0.15A
MAX current : rated power (All channel 2ohm loads)
≤45A
10.5~16V
Circuit Protection a. Temperature
b. Speaker Short Circuit
c. Operating Voltage Range
b. Speaker Short Circuit
c. Operating Voltage Range
75+5℃
2~3
Remote Operating Voltages:
ON 5V OFF 4V
±1V
DC Offset:
≤30mV
Damping Factor (4ohm):
>200
3
MARINE
series
MA6004