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There are currently no product reviews.
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Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
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Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).
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The Service Manual for the Kenwood KR-V55R provided by owner-manuals.com was as described/advertised. The contents provided the necessary information to effect a diagnosis of the unit. The schematics above all else was instrumental in tracing the the signal flow from component to component.
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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
Technical Manual
QJr
Quantum Series 3-Way Speaker
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Sensitivity: Crossover Frequencies: Frequency Response: Horizantal Dispersion: 4 ohms 20-200 watts RMS 89dB @ 1 watt, 1 meter 600Hz and 4,000Hz 40Hz-32,000Hz +/-3dB -2dB at 60°, left or right (20kHz)
PHYSICAL SPECIFICATIONS:
1x - EMIT Tweeter 1x - 1-1/2" (3.8cm) Dome Midrange 1x - 12" (30.5cm) Q-Woofer Dimensions: 25"H x 14.5"W" x 12"D XXXXXXXXXXXXXXXX XXXXXXXXX63.5cm(H) x 36.8cm(W) x 30.5cm(D) Cabinet Not Sold Grille NLA Crossover NLA Tweeter Level Control #145-0103 Midrange Level Control #145-0103 Logo #716-0312
PRODUCTION HISTORY
Introduced in 1978 Discontinued 1983 Original Retail Price: $778.00/pair
TECHNICAL INFORMATION
EMIT TWEETER #902-0221 TWEETER DIAPHRAGM #751-3722
1-1/2" DOME MIDRANGE #902-0206 12" WOOFER #902-1187
Original 2� 5W Substitue 5� 5W
BLUE
7.5µF
TWEETER
BLU/BLK
FUSE
2.5A AGC
5� 5W 13.6µF 0.5mH AIR CORE 13.6mF
WHT/BLK
INPUTS
MIDRANGE
WHITE RED
3mH IRON CORE
WOOFER
RED/BLK
REV B 8/05
INFINITY SYSTEMS INC., 250 Crossways Park Drive, Woodbury, New York 11797
QJr Quantum Series 3-Way Speaker
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