Archive for the ‘Uncategorized’ Category

Onkyo TX-SR606: One in the eye for planned obsolescence.

June 3, 2016

Today I repaired my Onkyo TX-SR606. The video board was failing on HDMI handshaking. With a nod of thanks to patpatpat999, and others, I replaced capacitors C8609 (top) and C8002, C8602, C8096, C8162 (bottom) on the HDMI switcher board. The linked video has a good description of how to remove the board, and how to identify the components.

I used radial lead capacitors, not surface mount types. There’s enough room on the board to sit them flat in between other components. I bought 105C-rated components, as the issue seems to be heat from the power amplification part of the system.


If you’re feeling really keen, use a dab of hot glue to hold them in place. I’m not planning on moving the unit often, so I’ll let the capacitors flap in the breeze.



July 11, 2014

I don’t seem to receive much spam email, and that’s good. On the other hand I notice that there seems to be a lot of spam coming from , and it has been going on for some weeks now. I keep flagging the messages as spam but talktalk don’t seem to be doing a lot about it.

The times, they are changing.

June 8, 2013

Yesterday I was surprised by something. A friend of mine has been a very loyal Windows user since Windows 98. Yesterday he tells me that he is seriously considering installing Ubuntu on his next computer. I nearly fell off my chair!

Obviously, I will help him as much as I can. It shows that something which (not too long ago) was seen as a niche and nerd thing, is now on the verge of being mainstream. It’s a very bold decision to make, to fundamentally change how you compute.

Secret indicator on the Camsports HD-S 720p

September 22, 2011

I noticed something about my “bullet cam” recently. There is a indicator LED within, which can only be viewed from the back of the unit. You have to point the lens almost vertically down, and look in the left mystery hole on the back.
Like this
I am not sure if it means the camera is on, or means the internal battery is charging. I’ll try to remember to check it after it has charged fully. The manual makes no reference to this “undocumented feature”. You can download the manual from the manufacturer’s own site.
Actually there are number of ways the camera’s behaviour differs from the instructions:

  • The LED next to the lens does not flash blue when recording starts. The manual says it does.
  • Quote “When recharging, the LED record indicator will be red. At full charge, the LED will turn green.” When re-charging (with the mains adapter) the record indicator does not light. At full charge, there is no indication at all that charging is complete. When the camera is full of data, the record indicator alternates red/green. It also beeps about eleven times before shutting down.

It won’t be first time I’ve encountered a gadget whose behaviour differs from what the manual claims, not that it detracts from the results I’ve had from the camera. With so many embedded systems around these days, I think we should be more aware of the fact that the behaviour depends on the internal software. As a consequence we should not assume that the behaviour will always be consistent because there may still be bugs in the software.

Edit: The secret indicator LED is definitely a “charging” rather than “on” indicator.

Horizon: The Secret You, a BBC TV documentary

October 30, 2009

I’ve just watched the Horizon documentary “The Secret You”. Some of the phenomena I knew about, but I enjoyed seeing the experiments performed giving unexpected results. I’ve used the word unexpected because for most studies in this area, the results often don’t match the theoretical expectation. This has given us new ideas about how the human conciousness works, by challenging our preconceptions.
Once again the BBC shows it can make world-class programmes.

There’s a “but” coming, you may have expected this.

I found the over-use of the “fake jerky video” effect to be most irritating. Many of Professor Marcus du Sautoy’s insightful observations and explanations don’t need a distracting background. The video shot out of a car window suggested strongly the concept of looking out in to a world around us, which exists more in our inner mind’s eye. This subtle suggestion in photography was undone by a deluded editor with something to prove.

Cynical? Me?

October 28, 2009

Parody version of a film poster.


September 28, 2009

In this day and age of wireless everything, I think it’s really quite tragic that the TV Licensing folk expect us to believe this waffle here.
I understand that information from “TV detectors” has never been used in court – there’s a good reason for that.
If you’re going to watch TV, pay your license and it’s no problem.
If you’re thinking about watching TV without paying your license, then re-consider. It’s dishonest.