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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
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Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
Technical Manual
REFERENCE 50
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Efficiency: Crossover Frequencie: Frequency Response: 6 ohms 25-150 watts 90 dB @ 2.8 volt/1 meter 300Hz, 4,000Hz 44Hz-40kHz +/-2.5dB
Reference Series 3-Way Speaker System
PHYSICAL SPECIFICATIONS:
1x - EMIT-R Tweeter 1x - 5" (12.7cm) IMG Midrange 1x - 9" (20.3cm) IMG Woofer XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Dimensions: 33"H x 10.5"W" x 9.85"D XXXXXXXXXXX XXXXXXXXX83.82cm(H) x 26.67cm(W) x 25.08cm(D) Cabinet Not Sold Grille #A026-5090 Crossover #A015-5085A Logo #716-5020 Spike Feet #846-4297 CB1 #871-1974
PRODUCTION HISTORY
Introduced in 1991 Discontinued 1993 Original Retail Price: $750.00/pair
TECHNICAL INFORMATION
EMIT-R
TWEETER #902-4578D NLA USE 902-6769 DIAPHRAGM #751-6022
MIDRANGE #902-6770 NLA USE 902-4585
9" WOOFER #902-4592 NLA USE 902-7298
ZD1 1N5343B ZD2 1N5343B
34" BLU/BLK .110" FEMALE CLIP
CB1
C1 6.0µF POLY
MID/TWT INPUTS
1A-30
L1 0.09mH
TWEETER
34" BLUE .205" FEMALE CLIP 32" WHT/BLK
C2 50.0µF NPE
L2 .45mH
C3 10.0µF NPE
R1 .5� 5w
L3 2.50mH
R2 2.5� 10W
.110" FEMALE CLIP
MIDRANGE
32" WHITE .205" FEMALE CLIP 18" RED .250" FEMALE CLIP
WOOFER INPUT
L4 3.0mH
C4 125.0µF NPE
WOOFER
18" RED/BLK .205" FEMALE CLIP
REV A
6-98
INFINITY SYSTEMS INC., 250 Crossways Park Drive, Woodbury, New York 11797
REFERENCE 50 Reference Series 3-Way Speaker System
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