Question about Denon AVR-1705 Receiver
Servicing the unit requires a service manual like the one here @
a ) You need to open the unit and check for regulators, protection
circuits, preamplifier circuits and the main amp circuits.
b ) These trouble can be attributed to loose of audio
signal being sent to each main amp of the unit.
c) These can also possibly be from the protection circuits or
to the microprocessor .
d ) To start diagnosing the unit measure offset voltages on each
main amp output stage particularly on the center of the twin resistor
or to the test point indicated on the board.
e ) Having an over of 0.7V will activate the protection circuits thus
having no output on the speakers and sometimes will show
Protect indicator on the panel.
f ) Although at times , one way to tackle circuits like these is to
have a signal tracer.
here is a tip just in case you need to have an overview how to
troubleshoot the missing audio, these one is more basic than yours
but the principle is the same.
g ) These are just for the process of eliminating the cause, till
we can prove something then that would be the area we will be
Let me know if you need further assistance after probing around.
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information proves useful to you. If so, please take a moment
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Posted on Feb 06, 2010
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Posted on Jan 02, 2017
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