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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
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Good pdf of the service manual for this unit. Includes disassembly instructions, full schematics, board layouts, parts lists and diagnostic information. Some information is in the pdf twice (single pages, and split pages), but that could be how it was originally generated by panasonic, or perhaps the idea is to make it eaiser to put onto 8.5 x 11" pages.
Information was exactly what I needed. Delivery was overnight (less than 12 hours) and I was happy with the process.
Technical Manual
ERS 500/520/540
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Crossover Frequencies: Frequency Response: Sensitivity: 4 ohms 10 to 40 watts RMS 6kHz 75Hz-22kHz 85dB 1watt/1 meter
Environmental Reference Series 2-Way Speaker
PHYSICAL SPECIFICATIONS:
1x - 5-1/4" (13.3cm) IMG Speaker Baffle Dimensions: 8"H x 8"W" x 3"D XXXXXXXXXXXXXX XX 20.3x20.3x7.6cm Hole Size Required: 6-7/8"H x 6-7/8"W XXXXXXXXXXXXX XX 17.4x17.4cm Baffle #760-6533 Grille #654-6563 Grille Foam Logo #965-6537 #716-5719
PRODUCTION HISTORY
Introduced in (800:1989) (820:1991) (840:1994) Discontinued (800:1991) (820:1994) (840:1998) Original Retail Price: (800:$250.00/pair) (820/840:$275.00/pair)
NOTE: ERS 500 MUST HAVE A SEPARATE INSTALLATION BRACKET
TECHNICAL INFORMATION
Tweeter #902-4403 Substitute #IF990520-S
REV A
9-98
INFINITY SYSTEMS INC., 250 Crossways Park Drive, Woodbury, New York 11797
ERS 500/520/540 Environmental Reference Series 2-Way Speaker
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