Adcom GFA-5500 Bedienungsanleitung

SERVICE MANUAL2 CHANNELPOWER AMPLIFIERGFA-5500TABLE OF CONTENTSIntroduction . . . . . . . . . . . . . . . . 1Test Procedures . . . . . . . . . . . . .

1INTRODUCTIONThis service manual is intended to assist trained and qualified technical personnel in verifying theperformance of, adjusting, and repair

2GFA-5500 SERVICE PARTS LISTAMPLIFIER MODULE PCBSCHEMATIC ADCOM PART NUMBER DESCRIPTIONLOCATIONC01 12001535 CAPACITOR MICA 390pF 100VC02 12001080 CAPA

3LOCATIONR15 27002030 RESISTOR ROED 10K (1/4W 1%)R16 27002500 RESISTOR ROED 33.2K (1/4W 1%)R16A 27002500 RESISTOR ROED 33.2K (1/4W 1%)R17 27001565 RES

4SCHEMATIC ADCOM PART NUMBER DESCRIPTIONLOCATION30005800 BINDING POST RED/BLACKC8 12001235 CAPACITOR MYLAR 0.1uF 250VR31 27001000 RESISTOR 4.7R (2W 5%

5 a GFA-5500 Voltage ConversionThe GFA-5500 amplifier is produced in both a 120VAC only version and a multivoltage (120VAC or 230VACconvertible) versi

6230V to 120V1. Unplug the amplifier and remove the top cover.2. Locate the connecting block mounted next to the power switch.3. Move the transformer

7 GFA-5500 SPECIFICATIONSPower Rating (To FTC Requirements)200 watts continuous average power per channel into 8 ohms at any frequency between 20Hz to