JBL BASSPRO II (serv.man10) Service Manual ▷ View online
BassPro
™
II
Powered Subwoofer
SERVICE MANUAL
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797
Rev0 6/2003
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .. . . . . . . . . .. . . . . . . 1
DETAILED SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . ………….. . . . . . . . . . 2
CONNECTIONS . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . . 3
CONTROLS & FUNCTIONS. . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . 5
BASIC TROUBLESHOOTING. . . . . . . . . . . . . .. . . . . . . . . . . . . . ... . . . . . . . . . 6
REMOTE LEVEL CONTROL. . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . .. . . . . 7
EXPLODED VIEW. . . . . . . . . . . . . . . . .. . . .. ……. . . .. . . . .. . .. .. . . . . …... … . 8
BLOCK DIAGRAM . . . . . . . . . . . . . .. . . . . . . ……... . . . . . . .. . .. . . . . . . . …... 9
PCB DRAWINGS. …………… . . . . ………………………………………………. . 10
ELECTRICAL PARTS LIST …………. .... . .. …. . . . .……….. . . . . . .. .. . . . . . . 13
IC – TRANSISTOR PINOUTS . … . . .. . . . …. . . …….…………... . …. . . . . . . . 15
SCHEMATIC DIAGRAM.. . . . . . . . . .. .. .. .. . . ….. .. . ….………... . . . . . . . . . . .16
PACKING ………………. . . . . .. . . . . . . . .. .. . …… . .. .. . . . . . . . . … . . . . . . . . 17
BASS PRO II BASIC SPECIFICATIONS
Amplifier power:
100 Watts
Frequency response:
20Hz – 120Hz
Fuse
rating:
20A
Max current draw:
12A
Idle current draw:
<800mA
Input sensitivity:
50mV to 4V Line-level input; 1V to 16V universal interface
Crossover frequency:
70Hz – 120Hz
Crossover slope:
12dB
Dimensions (L x W x H):
16-1/8" x 9-1/2" x 12-1/4" (includes mounting feet)
(410mm x 242mmx 312mm)
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.
BassPro II
1
BASSPRO
II AUTO SUBWOOFER SPECIFICATIONS
GENERAL CONDITIONS: TEST INPUT SIGNAL FOR LINE IN – 2CH/60Hz/250mV.
TEST OUTPUT – 1 W ATT 4 Ohms LOAD (Bridge).
POWER SOURCE DC14.4V/12A min
TEST CONDITIONS: ALL TEST SIGNALS FROM LINE IN UNLESS OTHER REMARKS.
CROSSOVER VR AT MAX POSITION UNLESS OTHER REMARKS.
UNIT
NOMINAL
LIMIT
1. TOTAL OUTPUT POWER
W
100
W
22
20
2. OUTPUT POWER (1 CHANNEL)
(60, 400; 5.0% THD)
(60, 400; 5.0% THD)
%
0.3
0.5
MAX
3. THD AT 1.0W (60,250;)
dB
70
65
MIN
4. SIGNAL TO NOISE RATIO
(60,250; O/P=1W;)
(60,250; O/P=1W;)
(60-120HZ) dB 60Hz
0REF
5. FREQUENCY RESPONSE
(-- , 250; O/P=1W)
(-- , 250; O/P=1W)
120Hz
-1.6+/-3
180Hz
-6.5+/-3
MAX TO MIN
dB
-12+/-3
6. CROSSOVER RANGE
(120,250,O/P=1W,MAX REF)
7. CROSSOVER SLOPE
dB
12
LOW – INPUT
mV 340 +/-
60
8. INPUT SENSITIVITY
(60, --;O/P=18W,L+R, GAIN MAX)
(60, --;O/P=18W,L+R, GAIN MAX)
(60, --;O/P=18W, 2CH,GAIN MAX)
HI – INPUT
V 3.5
+/-
0.6
mV
0.8
1.5
MAX
9. MAX GAIN NOISE, GAIN MAX )
mV
0.5
0.9
MAX
10. MIN GAIN NOISE, GAIN MIN )
AUTO ON LEVEL V
1.8
+/- 0.5
11. AUTO SENSE
(--, --, HI-N, 1CH)
AUTO OFF TIME MIN
3.0
+/- 1.5
12. PROTECTION CIRCUIT
(60,250,O/P=10W)
(60,250,O/P=10W)
SHORT SPK TERMINAL +/-
Functional
13. FUSE RATING
A
20
14. MAXIMUM CURRENT DRAW
A
12
15. IDLE CURRENT DRAW
mA
<800
16. DIMENSIONS
16 1/8 X 9 ½ X 12 ¼”
(410 X 242 X 312MM)
BassPro II
2
POWER CONNECTIONS
Connecting power to BassPro II is
shown in
shown in
Figure 7. Please observe
the following installation tips:
When using the high-level input con-
nections, BassPro II will automatically
turn on when you turn on your radio.
In this case, the remote (REM) con-
nection is not needed. Use at least #20
AWG speaker wire for speaker-level
input connections.
nections, BassPro II will automatically
turn on when you turn on your radio.
In this case, the remote (REM) con-
nection is not needed. Use at least #20
AWG speaker wire for speaker-level
input connections.
Use at least #12 AWG wire for the
Positive Battery (BATT +12) and Ground
( ) connections. If needed, use at
least #20 AWG wire for the remote
(REM) turn-on connection.
Positive Battery (BATT +12) and Ground
( ) connections. If needed, use at
least #20 AWG wire for the remote
(REM) turn-on connection.
Connect BassPro II’s “BATT +12V”
terminal directly to the battery’s posi-
tive (+) terminal. Install a fuse holder,
with a 20A fuse, within 18" of the bat-
tery’s positive (+) terminal.
terminal directly to the battery’s posi-
tive (+) terminal. Install a fuse holder,
with a 20A fuse, within 18" of the bat-
tery’s positive (+) terminal.
BassPro
(right-side panel)
Chassis Ground
(Bare Metal)
Source Unit
Battery
Fuse 20 A
18"
Remote
Turn-On
Route all power wires through a grom-
met in the vehicle’s firewall. If a factory
grommet is not available, install one.
Connect a short ground wire from
BassPro II’s ground terminal ( ) to the
nearest bare metal surface. For a good
connection, use sandpaper to clear
paint from the metal surface and use
a screw with a lock (star) washer.
met in the vehicle’s firewall. If a factory
grommet is not available, install one.
Connect a short ground wire from
BassPro II’s ground terminal ( ) to the
nearest bare metal surface. For a good
connection, use sandpaper to clear
paint from the metal surface and use
a screw with a lock (star) washer.
The remote (REM) connection requires
a +5 to +12 Vdc signal for BassPro II
to turn on when using the line-level
connections. Most head units with
preamp outputs provide this remote
voltage signal. As an alternative,
connect this terminal to a switched
ignition circuit.
a +5 to +12 Vdc signal for BassPro II
to turn on when using the line-level
connections. Most head units with
preamp outputs provide this remote
voltage signal. As an alternative,
connect this terminal to a switched
ignition circuit.
Figure 7.
Chassis Ground
(Bare Metal)
Battery
Source Unit
Remote
Turn-On
Fuse 20A
18"
BassPro II Connection Panel
BassPro II
3
