Hello All,
I've tried to no avail with other forums, and I found this forum looks to be the bes for real information regarding problems, so here's mine.
I purchased a Sony STR-K850P AV receiver on E-Bay, appears it "may" have been damaged in shipping. Seller stated it was working before shipping, but I cannot get any sound out of it, from any speaker connection or input. Below is a list of items looked at, and reviewed so far:
No Sound from any input, through any speaker connection (tested w/ 8 ohm speakers). Tuner will not “Auto Tune”, even with antenna attached. Will direct tune to a station number, but no audio.
· Unit powers on, display lights up, react to button inputs
· Unit does NOT “heat up” when left on
· Unit responds to remote control commands
· Checked main fuse (125V, 6A), fuse functional
· Relay on standby power circuit board “clicks” once when powered on
· Both power circuit board connections seem to be functional (receiver did not power up when disconnected connectors)
· Unit does detect input signal (i.e. optical vs analog, 5.1 vs stereo)
· Unit does NOT show “PROTECT” message
· Have NOT tried headphone jack for sound output (no headphones w/ ¼” plug)
· “Sleep” function works: unit will power off
· Have tried “reset & Memory clear” per Sony manual-No effect
· Very slight hum from power transformer when powered on.
· Nothing internal visibly broken, not connected.
· Was told that unit was fully operational before shipping. Received with dent above volume control. Internally looks like nothing is damaged w/volume control.
I've read that a likely cause is the thermal fuse may be blown, but wouldn't that prevent the unit from powering on at all?
Any help is appreciated, and please excuse me that I am really a novice. I am merely trying to check everything, and decide if a trip to the repair shop is worth it.
Thanks so much for any help or direction.
I've tried to no avail with other forums, and I found this forum looks to be the bes for real information regarding problems, so here's mine.
I purchased a Sony STR-K850P AV receiver on E-Bay, appears it "may" have been damaged in shipping. Seller stated it was working before shipping, but I cannot get any sound out of it, from any speaker connection or input. Below is a list of items looked at, and reviewed so far:
No Sound from any input, through any speaker connection (tested w/ 8 ohm speakers). Tuner will not “Auto Tune”, even with antenna attached. Will direct tune to a station number, but no audio.
· Unit powers on, display lights up, react to button inputs
· Unit does NOT “heat up” when left on
· Unit responds to remote control commands
· Checked main fuse (125V, 6A), fuse functional
· Relay on standby power circuit board “clicks” once when powered on
· Both power circuit board connections seem to be functional (receiver did not power up when disconnected connectors)
· Unit does detect input signal (i.e. optical vs analog, 5.1 vs stereo)
· Unit does NOT show “PROTECT” message
· Have NOT tried headphone jack for sound output (no headphones w/ ¼” plug)
· “Sleep” function works: unit will power off
· Have tried “reset & Memory clear” per Sony manual-No effect
· Very slight hum from power transformer when powered on.
· Nothing internal visibly broken, not connected.
· Was told that unit was fully operational before shipping. Received with dent above volume control. Internally looks like nothing is damaged w/volume control.
I've read that a likely cause is the thermal fuse may be blown, but wouldn't that prevent the unit from powering on at all?
Any help is appreciated, and please excuse me that I am really a novice. I am merely trying to check everything, and decide if a trip to the repair shop is worth it.
Thanks so much for any help or direction.