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Search: Posts Made By: guirnab
Forum: Troubleshooting Computer Displays 04-16-2015, 01:53 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

I tried to turn it on again (with PC connected). Something is not right. If I remember correctly, the Benq logo sould dissapear right away. It seems to me that its there for too long now.

Btw, its...
Forum: Troubleshooting Computer Displays 04-16-2015, 01:06 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

Startup cap is the biggest one (150uF 450V)?
Forum: Troubleshooting Computer Displays 04-16-2015, 01:04 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

It's not (pure) 2s-to-black. On the video top of the screen is brighter than it should be. I'am afraid to let it turned on for longer than seen on the video...
Forum: Troubleshooting Computer Displays 04-16-2015, 12:43 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

Not on the video, but it does exactly the same with VGA connected.
Forum: Troubleshooting Computer Displays 04-16-2015, 07:14 AM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

I am back. I was at local store, but they had only 2A picofuse (or 5A) and i need 3A. So I bought the 2A and 3,15A (big) tube fuse as backup.

First I tried the 2A picofuse. Backlight worked for 1s...
Forum: Troubleshooting Computer Displays 04-14-2015, 04:56 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

Thanks guys, I couldn't find the fuse before :facepalm: Well, that may be the case. It definitely has more than 1 Ohm (out of range on multimeter). I guess it won't be easy to find replacement around...
Forum: Troubleshooting Computer Displays 04-14-2015, 04:38 PM
Replies: 26
Views: 2,242
Posted By guirnab
Forum: Troubleshooting Computer Displays 04-14-2015, 04:30 PM
Replies: 26
Views: 2,242
Posted By guirnab
Re: Benq t720 - 0 seconds to black

Thanks for (quick) reply :-) I tried to resolder everything suspicious with no luck.

Acording to the 2s-to-black guide I :
- measured highlighted MOSFETs. Everything has more than 200 ohms.

-...
Forum: Troubleshooting Computer Displays 04-14-2015, 11:30 AM
Replies: 26
Views: 2,242
Posted By guirnab
Benq t720 - 0 seconds to black

Hello guys,

i have Benq T720 (for about 10 years) and it started to suffer from "2s to black"...well, it was more like 500ms to black. I had to turn off and on the display for about 30 times to...
Forum: Announcements & Related News 04-14-2015, 10:36 AM
Replies: 20,727
Views: 1,179,239
Posted By guirnab
Re: New Members - please post your introductions here

Hello all!

I hope someone around here will help me repair my LCD screen :-)
Forum: Troubleshooting Computer Displays 04-14-2015, 10:29 AM
Replies: 66
Views: 168,401
Posted By guirnab
Re: A guide on how to troubleshoot 2 seconds to black

<--- delete me --->

(moved to new thread)
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