Sony Bravia Kdl-v40Xbr1 picky HDMI input

[ivoh]

Hi guys, I recently picked up a free very old sony bravia that would power on to a black screen. I took it apart, cleaned the tons of dust that had filled it, resoldered a few sketchy looking joints on the PSU, cleaned and reseated most of the connectors, and it started working again! But upon testing, ive found that the HDMI is really picky. Only my sony laptop would work with the HDMI on this tv. Ps3= black screen, google tv= showed the splash screen, but after that had a solid grey screen, android stick= scrolling nonsense. What could cause this? The HDMI cable is good. Also the tv takes about 10seconds to turn on, but i would guess thats normal for an old model. Thanks!

[aaronwt6]

Re: Sony Bravia Kdl-v40Xbr1 picky HDMI input

Have you checked the output resolution settings on the other devices? I know a lot of these old 720p sets will not accept a 1080p input at all.

Many new ones will and just scale it. That would be my first guess.

[selldoor]

Re: Sony Bravia Kdl-v40Xbr1 picky HDMI input

If you are treating hdmi as plug and play then I suggest you dont.
I would switch off the set and even unplug it, then plug in the hdmi and switch back on.

[ivoh]

Re: Sony Bravia Kdl-v40Xbr1 picky HDMI input

the tv takes 1080p and many other resolutions via the laptop so the resolution is not the problem. the first few times i tested it devices were connected with the tv unplugged. what could be different between the laptop and all the other devices ive tried? ill take it back apart again and reseat the connector and measure the voltages to the hdmi chip.

Edit: i havent taken apart the tv yet, but i tested two more laptops, another sony and a toshiba, and both worked immediately. whats the difference? maybe the laptops ground a certain pin or something?