Denon AVR1906, AVC1620 free download

File name Denon-AVR1906_AVC1620 rec.pdf

For U.S.A., Canada, Europe, Asia, Taiwan R.O.C., Korea & Japan model Ver. 1 SERVICE MANUAL MODEL AVR-1906/786 AV SURROUND RECEIVER AVC-1620 AV SURROUND AMPLIFIER 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. TOKYO ,JAPAN Denon Brand Company, D&M Holdings Inc. X0239 V.01 DE/CDM 0506 AVR-1906 / AVR-786 / AVC-1620 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. 500V 1M (1) (2) (1) (2) 2 AVR-1906 / AVR-786 / AVC-1620 DIMENSION 3 AVR-1906 / AVR-786 / AVC-1620 CAUTION IN SERVICING Initializing AV SURROUND RECEIVER AV SURROUND RECEIVER initialization should be performed when the µcom, peripheral parts of µcom, and Digital P.W.B. are replaced. 1. Switch off the unit. 2. Hold the following SPEAKERS-A button and SPEAKERS-B button, and switch on the unit. 3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and the microprocessor will be initialized. Note: If step 3 does not work, start over from step 1. All user settings will be lost and this factory setting will be recovered when this initialization mode. So make sure to memorize your setting for restoring afte