InterM PA9348 & VD0504 free download

File name InterM-PA9348_VD0504 pwramp.pdf

SERVICE MANUAL P U B L I C A D D R E S S P O W E R AMPLIFIER PA-9348 CONTENTS Electrical Adjustment Procedure ··············1 Specifications ······················2 Electrical Parts List ····················3, 4, Top and Bottom View of P.C. Board ·············5, 6 Wiring Diagram ······················7 Block Diagram ······················8 Schematic Diagram ····················9, 10 Exploded View of Cabinet & Chassis / Mechanical Parts List ··11, 12 Ass'y Drawing ······················13, 14 ELECTRICAL ADJUSTMENT PROCEDURE IDLE CURRENT A. Connection B. Adjustment ­ Adjust SVR11, SVR12 so that the current through the R68, R69 become 4~7mV. ­ When that voltage across the Positive "TP" to Negative "TP" becomes 4~7mV, the current becomes 18~32mA. 1 SPECIFICATIONS ELECTRICAL · Rated Output Power (THD 5%, 1kHz) ...480W · Frequency Response (+1/-3dB) ...70Hz~18kHz · Total Harmonic Distortion (1/2 Power, 1kHz)...1% or lower · High Pass Filter (400Hz) ...­3dB · Gain Control...­12dB · Signal-to-Noise Ratio...90dB or higher · Input Sensitivity/Impedance ...1V/10k Balanced · Output Voltage/Impedance ...EC, JAPAN: 4/43.8V, 10.2/70V, 20.8/100V · Power Consumption ...USA/CANADA: 4/43.8V, 8/62V, 10.2/70V GENERAL · Power Source...100­120VAC or 220­240VAC; 50/60Hz, 24VDC · Power Consumption ...(Supplied AC mains transformer depends on country requirements) · Power Consumption...600W(1/8 power) · Power Consumption...900W(1/3 power) · Power Consumption ...1450W(full power) · Weight...