CurtPalme.com Home Theater Forum

[mobutu]

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Hi all,

First of all excuse my noobiness, I've stumbled on this forum by accident while searching for info related to my problem and there seem to be a lot of knowledge gathered here.

I have a Denon AVR-2307 which upon power on plays on the last analogue input selected but freezes when you try to select a different one. The HDMI in/outs are also dead. Composite & S-video in/outs work. Menus and OSD also work. Selecting a DSP program also causes freeze. I haven't tested any digital inputs yet.

I'm guessing its either a CPU and/or an HDMI board. But before deciding whether I should invest any money on it I thought to try and see if anyone has come across any similar issue. Any help would be appreciated.

Regards

[Curt Palme]

All I can tell you generally is that all HDMI receivers are prone to failures due to their complexity and how hot they run. Google 'Onkyo extended HDMI warranty' and see what you come up with.
My guess is that one of the chips on the HDMI board needs to be reballed, and that's simply not worth it. I've heard that Denon has really dropped in quality in the last 10-15 years, they were my go-to about 20 years ago. Onkyo and Pioneer both had rampant problems, and the Onkyo extended warranty thing is now long over, as of Dec 31, 2019.
IMHO- not worth repairing, sorry!

[Curt Palme]

All I can tell you generally is that all HDMI receivers are prone to failures due to their complexity and how hot they run. Google 'Onkyo extended HDMI warranty' and see what you come up with.
My guess is that one of the chips on the HDMI board needs to be reballed, and that's simply not worth it. I've heard that Denon has really dropped in quality in the last 10-15 years, they were my go-to about 20 years ago. Onkyo and Pioneer both had rampant problems, and the Onkyo extended warranty thing is now long over, as of Dec 31, 2019.
IMHO- not worth repairing, sorry!

[mobutu]

Well, I'll probably just keep it as an analog amp.
Who knows, with the amount of failures I might be able to source cheap another faulty unit and play around with the boards.
Thanks.

[Curt Palme]

The problem is, it will likely be the same failure on the other units. It's why I got out of repairing flat screens about 10 years ago. When Samsung had the bad capacitor run for about 5 years (class action lawsuit ended up happening, google that for a fun read!), I could repair a ton of flat screens in 15 minutes each. It took longer to take the back off than it did repairing the sets).

Now it's either bad LEDs on the panels (I don't have hands small enough to replace the bad LEDs), or more likely, bad solder joints on the back of the main CPU chip(s). Not worth repairing, and the used boards on eBay that 'work fine' usually fail again within months.

But good luck!

[Curt Palme]

The problem is, it will likely be the same failure on the other units. It's why I got out of repairing flat screens about 10 years ago. When Samsung had the bad capacitor run for about 5 years (class action lawsuit ended up happening, google that for a fun read!), I could repair a ton of flat screens in 15 minutes each. It took longer to take the back off than it did repairing the sets).

Now it's either bad LEDs on the panels (I don't have hands small enough to replace the bad LEDs), or more likely, bad solder joints on the back of the main CPU chip(s). Not worth repairing, and the used boards on eBay that 'work fine' usually fail again within months.

But good luck!

[mobutu]

I know exactly what you mean. I have two problematic Samsung, a blinking monitor and a TV with vertical lines at the edges, both <10 years old. I guess size reduction (heat) and cost savings by driving components to their limits (capacitor voltages) led to this. Or is it planned obsolescence?
Either way, for products of this price range such a short lifespan is unacceptable. Denon & Samsung are already on my blacklist.
BR

[mp20748]

[mobutu]