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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
N28II Northridge Series
Technical Manual
N28II
Northridge� Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
� � � � � Nominal Impedance Max Amp Power Frequency Response Sensitivity Crossover Frequency 8 ohms 150 watts* 50Hz � 20kHz (�3dB) 90dB (1 watt @ 1 meter) 4000Hz
AURAL SWEEP TEST SPECIFICATIONS:
� System Aural Sweep Test � L.F. Aural Sweep Test � H.F. Aural Sweep Test 6.0V Input 50Hz to 20kHz 5.0V Input 50Hz to 5kHz 2.83V Input 3kHz to 20kHz
PHYSICAL SPECIFICATIONS:
� Enclosure Dimensions (H x W x D) � Weight 19-1/2" x 10-1/2" x 11-1/4" 495mm x 267mm x 286mm 36 lb/16.4kg (sold in pairs)
SYSTEM COMPONENTS:
� Cabinet N28II (not for sale) � Grille 337784-001 � Low-Frequency Transducer 8" (203mm) PolyPlas� cone, DC Resistance shielded (335469-002) 4.5 ohms ±10%
WARRANTY:
� Refer to Warranty Statement packed with each product. * 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.
� High-Frequency Transducer 3/4" (19mm) titanium-laminate dome, shielded (338035-001) DC Resistance 3.0 ohms ±10% � Crossover Network 335589-002
WIRING DIAGRAM PACKAGING
Driver High Frequency 338035-001 YELLOW YELLOW/BLACK Driver Low Frequency 335469-002 Network 335589-002
Upper/Lower Foam 337767-001
OWNER�S MANUAL
�
+
Owner�s Manual 338061-001 Warranty Card 338322-001 Survey Card 331384-001 Felt Pads 335634-001
Plastic Bag (2)
GREEN GREEN/BLACK
N28II SCHEMATIC
RED
+IN
�
L3 0.2µH
GREEN 14"
250 + L.F.
INPUT
�IN
BLACK
GREEN/BLACK 14"
205
�
Outer Carton (Black) 337766-001
R2 1.8 OHM/10W
C2 4µF/100v YELLOW 18"
205 +
L4 0.1mH
H.F.
110 �
YELLOW/BLACK 18"
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
09/02
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