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Search: Posts Made By: capullaco
Forum: General Electronics Technical Discussion 09-12-2018, 01:20 PM
Replies: 3
Views: 496
Posted By capullaco
Re: Problem with mechanical keyboard

Thanks, I bought a USB mini breakout board, will see if that fixes the problem.
Forum: General Electronics Technical Discussion 09-12-2018, 04:14 AM
Replies: 3
Views: 496
Posted By capullaco
Problem with mechanical keyboard

I have a James Dlonkey 619 keyboard, which lately has been having problems with the "2" and "A" keys, so I opened the keyboard to change the "Pause" and "Scroll Lock" switches for the "2" and "A"...
Forum: General Electronics Technical Discussion 08-03-2011, 06:21 PM
Replies: 1
Views: 1,229
Posted By capullaco
GFX card board: holes sealed with weird stuff

Firstly, sorry for my bad English.

I repaired a gfx card by replacing its capacitators.They were SMD ones (I think thats how they are called) and I replaced them with normal ones.
The problem is...
Forum: Troubleshooting Computer Displays 03-07-2011, 05:52 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Seems Im the only one who couldnt repair his TFT :(
Forum: Troubleshooting Computer Displays 09-10-2010, 04:23 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

So I replaced the jumper wire with an insulated one.

Rechecked the bridges I mentioned in posts before, and they seem fine. Sucked the tin and the points bridged were very,very near,almost...
Forum: Troubleshooting Computer Displays 09-09-2010, 09:34 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Yeah,it was insulated. But I got a very short cut to made it as tiny asd possible,but at the end the plastic melted and was loose.

I think it doesnt make contact.But I will replace it.
Forum: Troubleshooting Computer Displays 09-09-2010, 08:49 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok,so only the picofuse is blown. The transistors that blown twice are also ok, and so the FU9024

The bridge I did to one of the pins from the lifted pads seems also ok, giving continuity.

So...
Forum: Troubleshooting Computer Displays 09-08-2010, 05:48 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok, tomorrow im gonna check all the componentes again.

But the last time I checked all the 3 legged components, they were ok except for the 2 transistors (I made a mistake in some post above...
Forum: Troubleshooting Computer Displays 09-08-2010, 05:36 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Diferent voltaje but same amp, the guy told me that the amp is the important stuff and it should work with a 220V fuse.
Forum: Troubleshooting Computer Displays 09-08-2010, 04:27 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Yeah, I changed all the blown things, the picofuse (actually used a normal fuse) and 4 transistors.

BTW, the caps are orientated right, Im 100% sure. (white painted side with the negative side,...
Forum: Troubleshooting Computer Displays 09-08-2010, 10:18 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

So I tested it...no luck :(

Didnt even show up the BenQ logo. When I plugged it, I heard a spark, but dunno if it was from inside or just the normal spark sound that sometimes is heard when you...
Forum: Troubleshooting Computer Displays 09-08-2010, 09:32 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok,gonna try with that pin being dry soldered !
Forum: Troubleshooting Computer Displays 09-08-2010, 04:24 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok, I can solder a wire easily on the pin from the 3rd pic.
But the pin from the 1st and 2nd pic its alone! no traces to anything :bash::bash:
Forum: Troubleshooting Computer Displays 09-07-2010, 07:03 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

I used the desolder pump to desolder all the items (thought I didnt add more
solder,never saw that technique on the videos of desoldering I have seen) and only those 2 gave problems.

Maybe...
Forum: Troubleshooting Computer Displays 09-07-2010, 01:17 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok, so I was resoldering all the things you marked.
When I removed 2 of the transformers, one of their pins were without that silver layer on the board, so the tins doesnt sticks well.

I attached...
Forum: Troubleshooting Computer Displays 09-03-2010, 12:49 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Oh, thats not the blown fuse, its one on the top right on the pic.Next to the heatsink, only half of it is visible.
Its the picofuse, but I replaced it the 1st time with a cristal one.

Also the...
Forum: Troubleshooting Computer Displays 09-03-2010, 12:32 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok,went to buy the components but they didnt have the fuse at 125V.
Would one of 220V do the job?
Forum: Troubleshooting Computer Displays 09-03-2010, 05:14 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Thanks again retiredcaps.

If I didnt resolder the transformers, its because I wasnt sure which ones were them, until jetadm123 pointed them out.

That being said, I also didnt research more,...
Forum: Troubleshooting Computer Displays 09-02-2010, 08:45 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok, my mobile is working again.

Took photos of 'problematic' bits:

Photo number. Description

1. Those are the transistors that were originally blown.Theyre blow again (the left arrow...
Forum: Troubleshooting Computer Displays 08-31-2010, 05:30 AM
Replies: 172
Views: 57,147
Posted By capullaco
Angry Re: LCD 19" BENQ T905 problems

Ok, so I was going to resolder the transistors today,but tried the display first.

Its broken again :bash:

Guess Ill have to change the fuse and the transistors again :mad:
Forum: Troubleshooting Computer Displays 08-30-2010, 04:41 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok im gonna try. But do you think those fuckers are gaving those problems? The display started to stink when I turned it on :mad:
Forum: Troubleshooting Computer Displays 08-30-2010, 01:15 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Err...no
Which ones are the transformers? The box like ones?
Forum: Troubleshooting Computer Displays 08-30-2010, 12:59 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Ok, after changing the blown transistors and fuse, and replacing all the Elite caps I tested the display.

It showed the BenQ logo!...but it just stayed for 2 secs, and it wasnt properly lighted,...
Forum: Troubleshooting Computer Displays 08-29-2010, 10:20 AM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

What is the value of the polyester caps?

Someone said, 220 nF 160V but I have read on another site that is 0,022 micro F.
Maybe the guy misspelled it and added a 0?

AFAIK 220nF = 0,22 micro F...
Forum: Troubleshooting Computer Displays 08-28-2010, 10:54 PM
Replies: 172
Views: 57,147
Posted By capullaco
Re: LCD 19" BENQ T905 problems

Shape seems OK, but it was between the 2 blown transistors, so I thought it could be blown also...
Showing results 1 to 25 of 40

 
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