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This service manual was determinant to enable to fix my Alpine Amplifier. I am pleased with my purchase. For a 5 star rating I would like to see a higher resolution scan of the printed circuit board lay-out because the gray scale grafics was dificult to see. Also some schematic diagrams were scanned at a slight angle. Never the less, it had all information I needed to troubleshoot and service my equipment.
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Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
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The service manual was complete and the components on the drawings very good visible.
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downloaded next day , manual is very helpful , fast and easy
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This Service Manual was exactly what I needed to repair my Philips TV. The purchase was convenient and I received the manual at the same day I paid for it.
Kappa 120.3dvc 12" Woofer � Technical Data
CAR AUDIO
VENTED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
SEALED BANDPASS BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
Port
length = 9.71"
length = 12.26"
Port
fo = 30.0 Hz
fo = 50.0 Hz
Kappa 120.3dvc
(side view)
Kappa 120.3dvc
(side view) diam. = 4"
VBOX = 2.00 ft3 (56.64 liters)
(stuffed with loosely-packed fiberfill)
diameter = 4.0"
VREAR = 1.30 ft3 (36.82 liters)
(stuffed with loosely-packed fiberfill)
VFRONT = 0.86 ft3 (24.36 liters)
(stuffed with loosely-packed fiberfill)
VENTED FREQUENCY RESPONSE @ 2.83 V
105 dB In-Car 12 dB LP @ 80 Hz 105 100 100
SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
dB In-Car 12 dB LP @ 80 Hz
95
Out-Of-Car
95 Out-Of-Car
90
90
85
85
80
80
75
75
70
70
65 20 Frequency 50 100 Hz 200 500 1k
C
65 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
VENTED TRANSDUCER EXCURSION @ 300 W
20.0 Xd mM 20.0 17.5 17.5
SEALED BANDPASS TRANSDUCER EXCURSION @ 300 W
Xd mM
15.0
15.0
12.5
12.5
10.0
10.0
7.5
7.5
5.0
5.0
2.5
2.5
0.0 20 Frequency 50 100 Hz 200 500 1k
C
0.0 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
Infinity Systems, Inc. � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.infinitysystems.com
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