Random thoughts about software, hardware and electronics. And other things too...
torstai 2. tammikuuta 2014
Pictures!
As promised, some pictures of insides of the Blu-Ray player (Samsung BD-P4600) and monitor (HP w2216).
Starting with the Blu-Ray player. From outside it is different from most players as it is kinda "UFO" shaped, for nice and easy wall mounting. Guess that (wall mounting) went mostly out of style already as you really don't see that many devices designed for such use anymore (well, TVs aside).
Taking out handful of screws from bottom of device allows the top cover to slide off to uncover the insides; on right there is "bay" that is accessible from outside for connectors. And in middle, here yet covered with metal panel are main and display boards.
Taking out metal cover and display board reveals main board. Nothing really exciting here, really. This used external power adapter so no high voltages inside. On bottom side there are two main ICs that connect to bottom metal plate with thermal tape. Only unexpected thing here was the lack of electrolytic capacitors. Apparently they weren't needed.
Like I said before, a quick check on main board didn't reveal any problems (all voltages look good, even when movie is playing and so on), so the problem must be the drive itself. Not worth the trouble as new player was only 90€.
Okay, then the display, HP w2216, from 2008. I don't remember exactly the reason why I got this specific model, best guess is that it was only 16:10 model they had available when I went to buy one.
Opening this was pretty easy, but revealed nothing really unexpected. This one has also internal speakers (black can in picture below; outside measures about 23x57mm) which I have never even tried, but I have no reason to expect them to be any good for anything.
Above the speaker there are high voltage backlight connectors.
Taking off the LCD reveals power and main boards. The LCD module has also driver board (connected to main board via flex cable; connector can be seen at bottom of main board) and entire thing was sealed with loads of conducting tape.
Power board from other side. On top there are backlight drivers, on bottom main connectors. Caps are not bulging at all and measuring voltages with just power and main board connected revealed nothing. LCD itself of course was not connected as measuring voltages when it is in place would be very difficult if not impossible. Guess I'll just put this back together and use it for some less critical stuff - maybe it'll get worse so I can locate the problem.
16:10 displays aren't exactly cheap; I got HP Compaq LA2405wg as a replacement (again, only 16:10 display they had in shop), which cost about 280€. So I can justify putting in another hour of work to get this running again. We'll see.
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