Re: Gateway FPD2485W - capacitor related?
I emailed him and he says they are on order and should be available next month. Do you think there is a way to find a different part, say from digikey that essentially does the same thing? Even if I had to replace all 4, that might be the way to go.
king_raptor
Member
Last Activity: 04-23-2013, 05:37 PM
Joined: 10-21-2010
Location: Gilbert, AZ
-
Re: Gateway FPD2485W - capacitor related?
Attached is the order sheet for the parts I installed. Even though the EB series may not be ideal, the part P13478-ND was listed from someone else as being used and fixing the monitor, so I would assume it would be ok for mine. After removing one of the power mosfet (Q1) I tested from S-G, G-D and S-D as suggested and they were all less than 11 ohms, so it appears to be bad. The other 3 still on the board don't do this, so they may be ok....Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
In looking at 2 of the part #'s that I used which were successfully used by others - P13478-ND and 493-3288-ND they are EB and TS series, so perhaps that doesn't matter too much.Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
Hi, I looked up the part#'s on digikey and the series vary. I wasn't aware that the series mattered provided the uF and voltage were correct. I tried to select the ones with the longest hour rating with the 105 deg. rating. Here are some of the series for Panasonic... KG, EB, PW and FM. For the Nichicon I have PW, TS, and TT. I have not verified proper voltages going to the inverter board because I don't know what they should be and what wires to test. There is one red wire and 7 black wires. I did discover that the fuse (F1) on the inverter...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
Hi Wrog, I used some Panasonic and some Nichicon depending on what was in stock. Some of the caps are the same part #'s as listed, and some are not. Like I said, I replaced every cap on all the boards but one, and I didn't see a list from anyone doing all caps before. I can give you the part #'s if that would help.Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
I'm attempting to remove one of them to test out of circuit. I have a desoldering iron with the squeeze bulb and a regular soldering iron. Any tips on how to remove this without ruining anything else? The leads on the MOSFET are small and all close together.Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
seanc, I looked at the datasheet and to be honest I wasn't 100% sure what to check. I checked the resistance between pins each pin on opposite sides ie pin1 with pin 8, pin 5 and pin 4. I then reversed the polarity of the leads. From pins 1 and 8 there is 1.6 ohms, from pins 2 and 7 1.6 ohms and pin 3 and 6 had 1.6 ohms (all in both directions) when I tested pins 4 and 5 there was a difference in ohms when switching direction of leads and it as 1.84 in the 20K ohm range and 5.14 in the other direction. Now MOSFET Q1 was the exception. On...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
The numbers are:
9985GM
645032
Is there a way to test for proper voltage or resistance, or do you just replace suspected bad items? What is it you see that makes you think they've gotten hot? Now that I'm looking closer, there does appear to be a little golder brown tint to them. Is that what you're going off of?Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
I took 2 pictures. The first one is the right hand side, and the second is the left hand side. You can see the capacitor in both, so everything should be there. Thanks again for your help. Russell...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
Thanks, I took the fuse out and now the music plays again. Any idea what on the inverter board could be shorted? I attached 2 pictures to show the inverter board and the fuse that I soldered in. Thanks, Russell...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
I found a 4 amp fuse (the round glass type that are often used for car radios, etc) that had a wire on each side. I soldered each end to each end of the fuse on the inverter circuit. After doing this, I plugged it in and first thing I noticed is that it didn't make the muscial sound that it did before. The display is still blank however. One problem I have is I don't know how this monitor behaves when it does work. Is there someone who is familiar with this monitor? Does it normally turn itself on, or at least play the music when it is first...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
On my Radio Shack DVM, it shows a 1 which is open. When I first tested, it seemed like it was showing something, but then went to 1. I'm pretty certain the fuse is bad. I just hope that's all it is.Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
All it shows is IE 5A, so I assume it's a 5 amp fuse. When I say I'm tempted to jump a wire strand across, I mean literally a single, very thin wire that you would get from a strand. I would never put a complete wire strand across, that would defeat the purpose of a fuse. I think this part # from Mouser is the same...576-0453005.MR.Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
Hello, and thanks for the quick reply. I did test the fuse in the manner that you described, but it didn't seem like I was getting a good connection, so I also tried it the way I mentioned. I attached 2 pictures for you to view. I wanted to confirm that this is indeed a fuse (I assume the F in F1 means fuse 1). I am tempted to try to jump across the fuse with a real thin wire strand or something just to confirm that it does something. If it works, I would be more willing to order a fuse from digikey if they have it. That is where I ordered...Leave a comment:
-
Re: New Members - please post your introductions here
Hi all,
I just joined today and already posted a question about a Gateway LP2407 monitor. I enjoy working with computers and have done so for around 20 yrs. I also enjoy working on things and figuring out how things work. I was in the Army for 4 years back in the early 90's and gained some electronic repair experience. I don't have much experience at troubleshooting at the component level, i.e. resistor, capacitor, diode, etc. but I can easily replace such items if I know they are bad - often you can visually see...Leave a comment:
-
Re: Gateway FPD2485W - capacitor related?
Hello everyone, another new member here. I just inherited a Gateway LP2407 (also refered to as FPD2485W). I don't know the history of the monitor, but it has the same symptoms as posted here. When I plug it in, it makes the musical sound, and the blue power light comes on and the lights above it flash on, but then after a while the light turns orange. There is absolutely no picture being displayed. I already took the monitor apart and found quite a few caps that were bulged on the top - on all 3 boards, so I replaced all the caps but the...Leave a comment:
No activity results to display
Leave a comment: