19' Dell Monitor Repair (1907FPVt)

----------- PLEASE READ! -----------

This was a PM that I received from uranium235678 and I found it to be very helpful.

I am by no means an electronics expert, I simply like to tinker and happened to fix several of these monitors. After fixing half a dozen or so I recorded it thinking that someone else must have experienced this problem too.

From uranium235678:

look at tutorials on youtube about cap replacement

you are lucky cause powerboards usually have good quality solder, but if you do cap replacement on motherboards or any Chinese ROHS compliant crap, you will have a bad time if you use the the methods you did with this board

you need some good 60/40 leaded & flux solder, as well, an actual flux pin can be helpful. 'Wet' each joint first with the new solder, then 'walk and heat' the cap out. I just did on a terrible compaq motherboard last night and probably 4/13 holes I had to use a sewing needle and my iron on high to clear them

I usually cut the leads before I put it in and hold it in place with a finger, others do not, its your call

I used something called a Hakko 808 ($~100) to clear the solder holes, which is easy on power boards, not as easy on motherboards, but still effective if you have practice

good choice of nichicon. There is other factors to take into account other than UF, in power boards, this is usually ripple current. In motherboads, Ripple and ESR. You can go up on voltage, but if you go up too high on uf, problems will be had

keep practicing, but try some different techniques. Also maybe a good weller varible temp iron, and medium-chisel tips to really transfer heat over a greater area on the joint. The less time your tip sits on the joint before it melts, the better, which is why I like varible temp irons, I can set it rather low for power boards, higher ~550f for motherboards and rohs (no lead) boards

good luck and keep practicing

peace
-paul

----------------------------------------------------------

While I will always appreciate constructive feedback, profanity and poorly thought out comments are not helpful to myself or others watching so comments have been disabled.

Apparently I miss spoke at some point, yes they are capacitors, not resistors. Thank you to the one who pointed that out.

This video shows how to disassemble, repair and reassemble a Dell 1907FPVt monitor with blown capacitors C824 and C825.

More information can be found at:

This tutorial is done in real time so that you can see some of the frustrations you might expect with this repair. I recommend watching it all the way through at least once before attempting the repair. If you have any questions, feel free to commend here or on the web site.