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SERVICE MANUAL
2 CHANNEL
POWER AMPLIFIER
GFA-5200
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . 1
Test Procedures . . . . . . . . . . . . . 1
Parts List . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . 5
Chassis Layout . . . . . . . . . . . . . . . 5
PCB Layout . . . . . . . . . . . . . . . . . . 7
Wiring Diagram. . . . . . . . . . . . . . . . 8
Schematic . . . . . . . . . . . . . . . . . 9
10 Timber Lane
Marlboro, NJ 07746
USA
Tel: 732-683-2356
Fax: 732-683-9790
Web: http://www.adcom.com
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Summary of Contents for Adcom GFA-5200
- Page 1 SERVICE MANUAL 2 CHANNEL POWER AMPLIFIER GFA-5200 TABLE OF CONTENTS Introduction ....1 Test Procedures ... . . 1 Parts List .
- Page 2 BE ACCESSIBLE ONCE ITS TOP COVER IS REMOVED. DO NOT ATTEMPT FAMILIARIZATION, INSPECTION, OR ANY PROCEDURE WHATSOEVER UNLESS YOU HAVE DISCONNECTED THE GFA-5200 FROM THE WALL AC OUTLET OR OTHER SOURCE OF AC POWER AND THE POWER- SUPPLY CAPACITORS ARE COMPLETELY DISCHARGED. THESE INSTRUCTIONS ARE PROVIDED FOR USE ONLY BY COMPETENT TECHNICAL PERSONNEL.
- Page 3 AMPLIFIER AND POWER SUPPLY PCB FOR RIGHT CHANNEL REPLACE 0XX WITH 1XX SCHMATIC ADCOM PART NUMBER DESCRIPTION LOCATION C001 12005385 CAPACITOR ELEC 47uF 63V C002 12001415 CAPACITOR POLY 39pF 50V C004 12001275 CAPACITOR MYLAR 2.2uF 250v C005 12005325 CAPACITOR ELEC 4.7uF 50V...
- Page 4 R006 27004640 RESISTOR 1.5K R007 27004670 RESISTOR 100R R008 27004570 RESISTOR 221R R010,R012 27004200 RESISTOR R013 27004570 RESISTOR 221R R014 27004300 RESISTOR R015 27004110 RESISTOR R016 27004135 RESISTOR 4.99K 1/2W R017 27004570 RESISTOR 221R R018 27004400 RESISTOR 1.82K R019 27004600 RESISTOR 4.75K R020,R021...
- Page 5 SCHMATIC ADCOM PART NUMBER DESCRIPTION LOCATION C201 12005700 SPARK KILLER 4700pF 400V C202 12005010 CAPACITOR ELEC 1000uF 25V C203 12005120 CAPACITOR ELEC 220uF 16V D201-D205 16004003 DIODE 1N4003 D302 16001204 POWER LED LTL1204 (RED) M204 37005200 POWER SWITCH SDDFA3066A NR201...
- Page 6 GFA-5200 SPECIFICATIONS Power Rating (To FTC Requirements) 50 watts continuous average power per channel into 8 ohms at any frequency between 20Hz to 20kHz with all channels driven at less than 0.18% THD 80 watts continuous average power per channel into 4 ohms at any frequency between 20Hz to 20kHz with all channels driven at less than 0.18% THD...