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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