DENON Схема SYS-76HT free download

File name Схема SYS-76HT.PDF

For U.S.A.,Canada & Europe model SERVICE MANUAL Ver. 1 MODEL SYS-76HT SPEAKER SYSTEM PACK 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. X0251 V.01 DE/CDM 0507 SYS-76HT 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. 2 NORMAL U203 LINE INPUT CROSSOVER VOL SW202 REVERSE PHASE POWER AMP U201 CONTROL SPEAKER DIRECT MODE SW HPF U203 ALC DIRECT MODE DSW-76 BLOCK / LEVEL DIAGRAM ATT +50.5dB 20V/4ohrm THD 0.7% (ALCON) (dB) at 55Hz 3 +20dB 40 20 +4.34dB 75mV 0 -10 -1dB