DENON hfe denon avr-791 1911 service free download

File name hfe_denon_avr-791_1911_service.pdf

e Ver. 4 Please refer to the MODIFICATION NOTICE. SERVICE MANUAL MODEL JP E3 E2 EK EA E1 E1K E1C AVR-1911 s AVR-791 s AV SURROUND RECEIVER For purposes of improvement, specifications and design are subject to change without notice. Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. if the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF and STANDBY mode, if applicable. CAUTION Please heed the points listed below during servicing and inspection. Heed the cautions! Inspect for safety after servicing! Spots requiring particular attention when servicing, such Check that all screws, parts and wires removed or as the cabinet, parts, chassis,etc., have cautions indicated disconnected for servicing have been put back in their on labels. be sure to heed these causions and the original positions, inspect that no parts around the area cautions indicated in the handling instructions. that has been serviced have been negatively affected, Caution concerning electric shock! conduct an inslation check on the external metal connectors and between the blades of the power plug, (1) An AC voltage is impressed on this set, so touching and otherwise check that safety is ensured. internal metal parts when the set is energized could cause electric shock. Take care to avoid electric (Insulation check procedure) shock, by for example using an isolating transformer Unplug the power cord from the power outlet, disconnect and gloves when servicing while the set is energized, the antenn