Got this from a co-worker today. Board appears to be the same layout, and model and revision numbers as the board in the first post in this thread: [url]https://www.badcaps.net/forum/showthread.php?t=9864[/url]
2 seconds to black, with the LCD panel working. (Picture visible in bright light.)
Caps are different brands, but none are swollen, and ESR looks to at least be in the ballpark.
Checking with 2 known CCFLs has no change in behavior. Checking the two transformers by the CCFL sockets results in the same readings on both of them, EXCEPT for pins...
torin3
Senior Member
Last Activity: 08-17-2015, 08:29 PM
Joined: 08-27-2009
Location: Souderton, PA
-
HP w1907 2 seconds to black
-
Re: Proview pl713s -newbie in distress
Nevermind...I didn't check the next page before posting... -
Re: Sony SMD-HS73
Ok. No problem. Just wanted to make sure I wasn't missing your point....Leave a comment:
-
Re: Sony SMD-HS73
Ok, I'm apparently completely missing the point you are making.
Since I've already replaced the caps with FC series caps I'm not planning on replacing them again unless they go bad. I don't know what brand/series were on there originally, so I can't say for certain that they are out of spec, but again, going by FC specs, they certainly seem to be going bad. Especially since 3 other caps, including at least 1 more 47uF cap all tested much lower.
But I'm not sure why you are telling me that FM would have lower ESR. I'm...Leave a comment:
-
Re: Sony SMD-HS73
Sorry I haven't been working on this one while I was waiting for my Blue ESR meter kit to arrive. I came in Monday and I put it together last night. I seem to have gotten it right the first time.
Anyway, I've been testing some of the caps I pulled off this board. It has been long enough that I'm not 100% sure of which through-hole caps were from this board, but for the logic board, it was the only one I removed SMD caps from. 3 of them seemed to be likely bad based off of the FC series data sheets. (I can't tell what brand, the only markings other...Leave a comment:
-
Re: Soyo Topaz S (M24E14)
Yeah, I forgot to mention that mine had no swollen caps. Sorry, migraine affects my concentration.
...
Leave a comment:
-
Re: Soyo Topaz S (M24E14)
[url]http://www.youtube.com/watch?v=xDphOxt7sOw[/url]
I have the same model as in this thread:
[url]https://www.badcaps.net/forum/showthread.php?t=8071&highlight=soyo+topaz[/url] There are some decent pictures there.
I've had a migraine most of the day, so I haven't felt like doing much, but I did pick up some aligator clips, so I should have something soon. I'll also check it on another circuit with a different computer to see if the static goes away there.Re: Soyo Topaz S (M24E14)...Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
It should handle a 750W load with ease.
Well, they aren't expensive units. I'll get a couple of each and replace them and then see where we are....Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
It started at 1.83V when I first turned it on, and is now up to 1.87V and the picture hasn't even started having problems yet.
Edit: Seems to have stabilized at 1.87VDC. I'll check again when the diplay goes wonky.
Edit2: It did go up to 1.88VDC before the display went wonky (about 3-4 minutes before). However when the display did go wonky, there was no additional voltage increase.
Possibly. It is plugged into a UPS. Which runs my computer plus 2 monitors. It...Last edited by torin3; 12-18-2010, 06:53 PM.Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
[url]http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=497-1236-1-ND[/url]
Closest I found at DigiKey was 950mA
Ok. I'll post when I get the results.Re: HP EN623AA - static /blocky whit...t the results.Re: HP EN623AA - static...Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
Sounds like a plan.
Would this be a good replacement?
[url]http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=497-3455-1-ND[/url]Re: HP EN623AA - static /blocky whit...455-1-ND[/url]...Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
Well, the 3.3V one when I started out was a rock steady 3.30V. When it started doing its weird video thing I read it as 3.33VDC it was gradually climbing. When it got to 3.38VDC I took the probes off, waited a few seconds and then checked again and got 3.39VDC.
I went ahead and turned it off at that point.
Should I leave it on longer and see when it stops?
Should I just switch to the other voltage regulator now?...Leave a comment:
-
Re: Soyo Topaz S (M24E14)
Well, I tried to swap this in as my secondary monitor and I see the static is still there. I've taken a quick video of the effect, but it is about 10M. If anybody thinks it will help, I'll post a link to it.Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
Ok, I'm finally going to have time to do this today. Should have the numbers for you in the next couple of hours....Leave a comment:
-
Re: Sony SMD-HS73
SSS6N70A 341
[url]http://www.alldatasheet.com/datasheet-pdf/pdf/54770/FAIRCHILD/SSS6N70A.html[/url]
I had to remove the cap from in front of it to get the number...
UD6340 STPS10 150 CT
[url]http://www.alldatasheet.com/datasheet-pdf/pdf/24569/STMICROELECTRONICS/STPS10150.html[/url]Re: Sony SMD-HS73<br /> <br /> <br... had to remove...Leave a comment:
-
Re: Sony SMD-HS73
200D6 PZDC
This looks like it should be right.
[url]http://www.alldatasheet.com/datasheet-pdf/pdf/115079/ONSEMI/NCP1200D60R2.html[/url]Re: Sony SMD-HS73<br /> <br /> <br...0R2.html[/url]...Leave a comment:
-
Re: Sony SMD-HS73
It is hard to say. I didn't get a 1 to 1 correlation for the .5V range for when the lamps were on. The voltage drop happened more often than the lamps came on. It might be that it was trying to turn them on more often than they acutally turned on. But the lights are on and then back off again so quickly that my meter can't say for certain exactly what the voltage was when they were on. There also may be spikes of more than the 1.17V, but if so they happened so quickly it didn't register on the meter.
But the 1.17V reading was only...Leave a comment:
-
Re: HP EN623AA - static /blocky white areas
Taking the readings is going to be hard with the way the board is mounted.
Can I solder some wires onto the regulator leads and use those to take my readings?...Leave a comment:
-
Re: Sony SMD-HS73
Well, either I didn't remember correctly, or like mentioned, I might have a low battery, and it might be giving me screwy readings.
2.5V regulator is at 2.49V on both meters right now. 3.3V regulator is 3.36VDC.
And just to verify, I checked the 12V rail again. Up in the 17V range when peaking.
Oh, and while it is somewhat frustrating, and I probably should be up so late before staring to work on this particular monitor, I am finding this process fascinating, and I'm learing quite a bit. Thanks again for all the he...Leave a comment:
-
Re: Soyo Topaz S (M24E14)
Sorry, poor phrasing on my part. I meant that I didn't see them until it was pointed out. When I took it apart again, I could see that the wrinkle didn't intrude far enough to potentially damage all the conductor for that wire. The plastic covering the wires is translucent, so you can see exactly where the wire is in the plastic.
Man, that glue doesn't want to move. Slightly sticky to the touch, slightly pliable, and TOUGH. I was able to get it off, but the wedge piece of the connector got broken. Not really...Leave a comment:
No activity results to display
Leave a comment: