Simon(SECS) / Doug Sterling / other audio electronics buffs!
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Joined: May 2003
Posts: 21,268
Likes: 147
From: The Dark Side of the Moon...
Guys, need some help....
Bought myself another AV amplifier, this time another Sony model (STR-DB870 - 5.1, digital decoding blah blah)
Thing is, it's perfect in everyway, except one thing - no sound from the front right channel. Now I know it's not the speaker or cable as I tried a different speaker and cable on both the left and right - left works, right doesn't. It's not the inputs either as I tried different ones, and also the internal test tone function, all of which output nothing from the front right.
So I reckon it's dead...
Took the cover off to look inside incase it was bleedingly obvious, but couldn't see anything that looked like it was wrong/missing. The front L+R outputs, along with the 6ch pre outs, are all connected to a daughter PCB. Couldn't see anything wrong on this - two multiplugs connected firmly, the little resistor looking things connected and not broken, etc.... Beneath this PCB was another one with two glass fuse looking things - couldn't get em out, but they looked okay as I could see a filament and no marks to indicate they were broke/burnt out. Again below this PCB was another, also with two glass fuses - same as above, nothing obvious to suggest it's broken.
Looked around but couldn't see any busted terminals or wires, connections, resistor thingys, etc etc...
Any idea's? Advice?
Bought myself another AV amplifier, this time another Sony model (STR-DB870 - 5.1, digital decoding blah blah)
Thing is, it's perfect in everyway, except one thing - no sound from the front right channel. Now I know it's not the speaker or cable as I tried a different speaker and cable on both the left and right - left works, right doesn't. It's not the inputs either as I tried different ones, and also the internal test tone function, all of which output nothing from the front right.
So I reckon it's dead...
Took the cover off to look inside incase it was bleedingly obvious, but couldn't see anything that looked like it was wrong/missing. The front L+R outputs, along with the 6ch pre outs, are all connected to a daughter PCB. Couldn't see anything wrong on this - two multiplugs connected firmly, the little resistor looking things connected and not broken, etc.... Beneath this PCB was another one with two glass fuse looking things - couldn't get em out, but they looked okay as I could see a filament and no marks to indicate they were broke/burnt out. Again below this PCB was another, also with two glass fuses - same as above, nothing obvious to suggest it's broken.
Looked around but couldn't see any busted terminals or wires, connections, resistor thingys, etc etc...
Any idea's? Advice?
Who is SECS ??

Sorry, Very hard to diagnose remotely especially without pictures of the internals.
I suggest taking it to a local repair shop and get advice.
Currys in house repair service is pretty good but can be a bit pricey.
Best get a quote first.
Simon

Sorry, Very hard to diagnose remotely especially without pictures of the internals.
I suggest taking it to a local repair shop and get advice.
Currys in house repair service is pretty good but can be a bit pricey.
Best get a quote first.
Simon
Thread Starter
Joined: May 2003
Posts: 21,268
Likes: 147
From: The Dark Side of the Moon...
Thanks guys - and Matt
I will get to a local place if I can and let them poke around in it first, see if anything can be found.... I was just thinking in case anyone could think of anything to specifically look for etc....
I will get to a local place if I can and let them poke around in it first, see if anything can be found.... I was just thinking in case anyone could think of anything to specifically look for etc....
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