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For U.S.A., Canada, Europe,
U.K. & Japan model
Ver. 1
SERVICE MANUAL
MODEL SC-M53
SC-M73
SPEAKER SYSTEM
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.
X0235 V.01 DE/CDM 0504
SC-M53 / SC-M73
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
SC-M53 / SC-M73
NOTE FOR PARTS LIST
l Part indicated with the mark " " are not always in stock and possibly to
take a long period of time for supplying, or in some case supplying of
part may be refused.
l When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-
supplying.
l Ordering part without stating its part number can not be supplied.
l Part indicated with the mark " " is not illustrated in the exploded view.
l Not including Carbon Film Resister