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An excellent service manual contains dismantling locations of components, electronic adjustments,worth the money.
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Caracteristiques,circuit adjusment,notes on schematis diagram,it's a good service manual,to live well,thanks.
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Service Manual in good quality, with all of the pages.
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Very usrfull for repaur, great quality copy. includes complete parts list and schematics
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Good quality Service Manual, availability of components includes disassembly, electronic adjustments. Includes a full list of details and diagrams. Contains 58 pages.
Technical Manual
4348
ACOUSTIC & ELECTRICAL SPECIFICATIONS: � Nominal Impedance 6 ohms � Max Amp Power 200 watts* continuous, 800 watts peak � Frequency Response 33Hz � 40kHz (�6dB) � Sensitivity � Crossover Frequencies SYSTEM COMPONENTS: � Cabinet � Grille 95dB @ 2.83 volts/1 meter 300Hz, 1kHz, 10kHz 4348 (not for sale) 339121-001 (upper) 339122-001 (lower) PHYSICAL SPECIFICATIONS: � Enclosure dimensions 42-1/2" x 23-1/2" x 15-3/4" (H x W x D) (plus Grille�s 1" depth) (1079mm x 597mm x 400mm) � Weight 200 lb (90.7kg) each AURAL SWEEP TEST SPECIFICATIONS: � System Aural Sweep Test 6.0V Input 30Hz to 40kHz � L.F. Aural Sweep Test � M.F. Aural Sweep Test � H.F. Aural Sweep Test � U.H.F. Aural Sweep Test 5.0V Input 30Hz to 500Hz 4.0V Input 100Hz to 2kHz 2.83V Input 1kHz to 10kHz 2.83V Input 8kHz to 40kHz
®
� Ultrahigh-Frequency Transducer 1" (25mm) 045TI (339009-001) DC Resistance 3.1 ohms ±10% � High-Frequency Transducer DC Resistance � Mid-Frequency Transducer DC Resistance 3" (76mm) 435AL (338831-001) 4.1 ohms ±10%
WARRANTY: � Refer to Warranty Statement packed with each product.
10" (254mm) 225J-1 (339093-001) 13.1 ohms ±10% * The maximum recommended amplifier power rating will ensure proper system headroom to allow for occasional peaks. We do not recommend sustained operation at these maximum power levels.
� Low-Frequency Transducer 15" (381mm) 1500FE (338975-001) DC Resistance 5.5 ohms ±10% � Crossover Network (Low Freq) 339126-002 � Crossover Network (Mid/Twt) 339126-001
WIRING DIAGRAM
JBL Consumer Products, 250 Crossways Park Drive, Woodbury, New York 11797
11/02
4348
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