File name Denon-AVR884_1804 rec.pdfFor U.S.A., Canada, Europe, U.K.,
Asia, China,Taiwan R.O.C., Korea
& Japan model
SERVICE MANUAL
MODEL AVR-1804/884
AVC-1880
AV SURROUND RECEIVER / AMPLIFIER
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.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
X0173V.01 DE/CDM 0307
AVR1804/884 / AVC-1880 2
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-1804/884 / AVC-1880 3
LEVEL DIAGRAMS
FRONT/CENTR/SURROUND/SURROUND BACK
INPUT D/A OUT
A/D IN A/D IN SW SUM ELECTRIC
BUFFER LPF REV AMP PRE AMP TONE POWER AMP
REV AMP REV AMP |