Hi All,
While messing around with some power monitoring receptacles / plugs / switches I noticed that my ONKYO tx-sr705 consumes 40watts in standby with zone 2 turned off. This got me curious as to why? I tested some other units and found that none in my test set used so much power in standby.
QUESTION: Is it the serial control, something specific to this model or a logic error that turns of the "source" of Zone 2 but leaves the transistors hot?
ONKYO tx-sr705 Transistor / RS232 / HDMI / 2 Zone 40W
ONKYO tx-sr700 Transistor / 2 Zone <2W
Pioneer vsx-1015tx Transistor <2W
ONKYO ht-r590 Chip / HDMI <2W
Yamaha rx-v657 Transistor / 2 Zone <2W
JVC rx-552v Transistor <2W
ONKYO tx-sr601 Transistor / 2 Zone <2W
DENON avr-1802 Transistor <2W
Jeremy
While messing around with some power monitoring receptacles / plugs / switches I noticed that my ONKYO tx-sr705 consumes 40watts in standby with zone 2 turned off. This got me curious as to why? I tested some other units and found that none in my test set used so much power in standby.
QUESTION: Is it the serial control, something specific to this model or a logic error that turns of the "source" of Zone 2 but leaves the transistors hot?
ONKYO tx-sr705 Transistor / RS232 / HDMI / 2 Zone 40W
ONKYO tx-sr700 Transistor / 2 Zone <2W
Pioneer vsx-1015tx Transistor <2W
ONKYO ht-r590 Chip / HDMI <2W
Yamaha rx-v657 Transistor / 2 Zone <2W
JVC rx-552v Transistor <2W
ONKYO tx-sr601 Transistor / 2 Zone <2W
DENON avr-1802 Transistor <2W
Jeremy
I just found something in the manual that implies higher than normal power usage in standby.
Quote from manual:
"
For North American model
Pressing the [STANDBY/ON] button to select
Standby mode does not fully shutdown the unit. If
you do not intend to use the unit for an extended
period, remove the power cord from the AC outlet."
UUUGGGGGG
I do not care about amplifier efficiency while in use or warming up (shout out to tube users) but no option to switch to a low power state is confusing. Especially with no reason given for this design decision.
Jeremy
Quote from manual:
"
For North American model
Pressing the [STANDBY/ON] button to select
Standby mode does not fully shutdown the unit. If
you do not intend to use the unit for an extended
period, remove the power cord from the AC outlet."
UUUGGGGGG
I do not care about amplifier efficiency while in use or warming up (shout out to tube users) but no option to switch to a low power state is confusing. Especially with no reason given for this design decision.
Jeremy
Does it come on automatically if it detects activity on hdmi? My thinking is maybe the digital stays active and it shuts down the amp. The old cable boxes were notorious for high power use and were always on.
Good thought. I can say that there is no active video signal on the single HDMI input from PC. There is no activity on the analog output of the AVR to the secondary amp. Just rattling it around there could be some ground potential imbalance but nothing that should trigger.
I am starting to wonder if there is some control settings turned on such as CEC that could be holding the AVR in a state of readiness.
Jeremy
I am starting to wonder if there is some control settings turned on such as CEC that could be holding the AVR in a state of readiness.
Jeremy